Yamaha multi purpose сервис мануал

DIC183

OWNERS MANUAL

Read this manual carefully

before operating this vehicle.

PZ50RTF PZ50XTF PZ50MTF PZ50MPF

8GK-28199-77

ESU10012

LIT-12628-03-17

ESU10043

Les missions du moteur de ce produit contiennent des substances chimiques connues dans ltat de Californie pour provoquer des cancers, des malformations congnitales et des troubles de la reproduction.

Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.

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Introduction ESU10122

Congratulations on your purchase of a Yamaha snowmobile. This model is the result of Yamahas vast experience in the produc- tion of fine sporting and touring snowmo- biles. It represents the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields. This manual will give you an understanding of the operation, inspection, and basic mainte- nance of this snowmobile. If you have any questions concerning the operation or main- tenance of your snowmobile, please consult a Yamaha dealer. Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most current prod- uct information available at the time of print- ing, there may be minor discrepancies between your snowmobile and this manual. If there is any question concerning this manual, please consult a Yamaha dealer.

WARNING EWS00671

Please read this manual carefully before operating this snowmobile. Do not at- tempt to operate this snowmobile until you have attained adequate knowledge of its controls and operating features. Regular inspections and careful mainte- nance, along with good operating techni- ques, will help ensure that you safely enjoy the capabilities and reliability of this snow- mobile.

PZ50RTF PZ50XTF PZ50MTF PZ50MPF

OWNERS MANUAL 2014 by Yamaha Motor Corporation,

U.S.A. 1st Edition, March 2014

All rights reserved. Any reprinting or unauthorized use without the written permission of

Yamaha Motor Corporation, U.S.A. is expressly prohibited.

Printed in Japan. P/N LIT-12628-03-17

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Important manual information ESU10152

Particularly important information is distin- guished in this manual by the following nota- tions.

This is the safety alert symbol. It is used to alert you to potential personal injury haz- ards. Obey all safety messages that follow this symbol to avoid possible injury or death.

WARNING EWS00022

A WARNING indicates a hazardous situa- tion which, if not avoided, could result in death or serious injury.

NOTICE ECS00012

A NOTICE indicates special precautions that must be taken to avoid damage to the snowmobile or other property.

TIP A TIP provides key information to make pro- cedures easier or clearer.

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Contents

Location of the important labels……1

Safety information………………………..6

Description…………………………………..9

Control functions……………………….. 11 Main switch …………………………….. 11 Throttle lever …………………………… 11 Throttle override system

(T.O.R.S.)……………………………… 11 Multi-function meter unit…………… 12 High beam indicator light …………. 13 Low coolant temperature indicator

light ……………………………………. 13 Knock control system indicator

light ……………………………………. 14 Drive indicator light and reverse

indicator light ………………………. 14 Fuel meter and grip/thumb

warmer level indicator ……………. 14 Fuel level warning indicator ……… 16 Oil level/pressure warning

indicator ……………………………… 16 Coolant temperature warning

indicator ……………………………… 17 Self-diagnosis device……………….. 17 Drive select switch …………………… 18 Engine stop switch ………………….. 18 Headlight beam switch

LIGHTS …………………………….. 18 Grip/thumb warmer adjusting

switch………………………………….. 19 Auxiliary DC jack (PZ50MP) ………. 19 Brake lever ……………………………… 19 Parking brake lever ………………….. 20 Drive guard……………………………… 20 V-belt holder (PZ50MP)…………….. 21 Passenger grip warmer switch

(PZ50MP) …………………………….. 21 Backrest (PZ50MP) ………………….. 22 Storage pouch ………………………… 22

Rear carrier (PZ50MP) ……………… 23 Tow hitch (PZ50MP) ………………… 23 Fuel ……………………………………….. 24 Suspension …………………………….. 25

Pre-operation checks………………… 33 Pre-operation check list……………. 33

Operation………………………………….. 35 Starting the engine…………………… 35 Break-in …………………………………. 36 Riding your snowmobile …………… 36 Maximizing drive track life ………… 40 Strap (PZ50MT)……………………….. 41 Driving……………………………………. 41 Stopping the engine ………………… 42 Transporting……………………………. 42

Periodic maintenance and adjustment………………………………… 44

Periodic maintenance chart for the emission control system………… 45

General maintenance and lubrication chart ……………………. 46

Tool kit …………………………………… 48 Recommended equipment ……….. 48 Removing and installing the

shroud and covers ………………… 48 Checking the spark plugs …………. 52 Adjusting the engine idling

speed………………………………….. 53 Adjusting the throttle lever free

play (PZ50RT / PZ50XT / PZ50MT) ……………………………… 53

Checking the throttle lever free play (PZ50MP) ……………………… 54

Checking the throttle override system (T.O.R.S.) ………………….. 54

Checking the air filter……………….. 55 High-altitude settings……………….. 56 Valve clearance……………………….. 56 Engine oil and oil filter cartridge … 56

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Contents

Cooling system ……………………….. 60 V-belt……………………………………… 62 Drive chain housing………………….. 63 Brake and parking brake…………… 65 Skis and ski runners…………………. 67 Steering system ………………………. 69 Drive track and slide runners …….. 69 High-profile pattern drive track ….. 72 Lubrication ……………………………… 72 Replacing a headlight bulb ……….. 73 Adjusting the headlight beams ….. 74 Fittings and fasteners……………….. 74 Battery……………………………………. 74 Replacing a fuse ……………………… 75

Troubleshooting ………………………… 77

Storage………………………………………80

Specifications ……………………………. 82

Consumer information……………….. 84 Identification number records ……. 84 Vehicle Emission Control

Information label …………………… 85 YAMAHA SNOWMOBILE

LIMITED WARRANTY 2015 and Later Models ………….. 86

YAMAHA EXTENDED SERVICE (Y.E.S.) FOR U.S.A. CUSTOMERS……………………….. 89

YAMAHA PROTECTION PLUS (YPP) FOR CANADIAN CUSTOMERS……………………….. 90

Index…………………………………………. 91

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Location of the important labels

1

ESU10217

Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement label is available from your Yamaha dealer.

1420 21 15 16

18 17

9

13 1

2

356

19

12 11

21

10 8 7

4

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Location of the important labels

2

NOTICE

ATTENTION

This snowmobile is originally equipped with a high-profile pattern track of more than 38 mm (1.5 in.) for deep snow riding conditions. Operation on light snowfall, ice, hard-packed snow, dirt, etc., will result in rapid wear or damage to track and slide runners.

Cette motoneige est quipe de srie d’une chenill crampons de plus de 38 mm (1,5 in.) pour la conduite sur neige profonde. La conduite sur de la neige peu profonde, de la glace, de la neige tasse, de la salet, etc. provoquera une usure rapide ou lendommagement de la chenille et des patins. 8JJ-2815M-E0

1 PZ50RT/PZ50XT/PZ50MT

1 PZ50MP

2 PZ50XT/PZ50MT

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Location of the important labels

3

NOTICE

8ET-2815K-00

ATTENTION

8ET-2815K-10

8GC-2415E-E0

PREMIUM UNLEADED GASOLINE. MIN. OCTANE (PUMP : 91 RON : 95) ESSENCE SUPER SANS PLOMB. INDICE DOCTANE MIN. (POMPE : 91 RON : 95)

TUNE-UP SPECIFICATIONS ENGINE

1.SPARK PLUG 2.SPARK PLUG GAP 3.IDLE SPEED

SPECIFICATIONS DE LA MISE AU POINT MOTEUR

1.TYPE DE BOUGIE 2.ECARTEMENT DES LECTRODES 3.RGIME DE RALENTI

CR9EKB(NGK) 0.6 ~ 0.7 mm (0.024 ~ 0.028 in) 1800 100 r/min

CR9EKB(NGK) 0.6 ~ 0.7 mm

1800 100 r/min

8GC

8GC-1417E-01

3 PZ50RT/PZ50XT/PZ50MT

4 PZ50RT/PZ50XT/PZ50MT

8

9

10

5 PZ50RT/PZ50XT/PZ50MT 6 PZ50MP

7 PZ50MT

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Location of the important labels

4

20kg {44lbs}

LOAD LIMIT / CHARGE LIMITE

8FM-24897-01

88C-77769-00

DRIVE 1. CHAIN CASE OIL QTY 2. CHAIN CASE OIL TYPE

3. TRACK TENSION

* FOR MORE INFO: SEE SERVICE MANUAL FOR THIS MODEL. * SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

ENTRANEMENT 1. CAPACIT DHUILE DU CARTER DE CHANE

2. TYPE DHUILE DU CARTER DE CHANE

3. FLCHE DE LA CHENILLE

* POUR PLUS DE DTAIL: VOIR LE MANUEL DATELIER POUR CE MODLE. * LES CARACTRISTIQUE TECHNIQUES SONT SUSCEPTIBLES DE CHANGER SANS NOTIFICATION PRALABLE.

250 cm (8.5 oz)

GL-3 75W or 80W

30 ~ 35 mm (1.18 ~ 1.38 in)/100 N (10 kg, 22 lb)

250 cm

GL-3 75W or 80W

8ES-47578-00

30 ~ 35 mm/100 N (10 kg)

TUNE-UP SPECIFICATIONS SPECIFICATIONS DE LA MISE AU POINT

11

12

13 PZ50XT/PZ50MT

14 PZ50MP

15

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Location of the important labels

5

WARNING This unit contains high pressure nitrogen gas. Mishandling can cause explosion. Read owners manual for instructions. Do not incinerate, puncture or open.

AVERTISSEMENT Cette unit contient de Iazote haute pression. Une mauvaise manipulation peut entraner dexplosion. Voir le manuel dutilisateur pour les instructions. Ne pas brler ni perforer ni ouvrir.

8GT-F2259-50

C M

V SS

CANADA NSVA C

TRANSPORT

506

This spark ignition system meets all requirements of the Canadian Interference Causing Equipment Regulations.

Ce systme dallumage par tincelle de vhicule respecte toutes les exigences du Rglement sur le matriel brouilleur du Canada.

3JK-82377-10

MAX. TOWING FORCE FORCE DE REMORQUAGE MAX. 1176 N (120 kgf), 264 lbf

MAX. VERTICAL FORCE FORCE VERTICALE MAX. 147 N (15 kgf), 33 lbf 8G

S- 28

17 S-

E0

NEVER stand behind or near a rotating track.

Debris or a broken track could be thrown back with great force which could cause severe leg or other injuries, or death.

Ne JAMAIS se tenir proximit ou larrire dune chenille en mouvement.

Des dbris ou une chenille casse pourraient tre projets violemment et entraner des blessures svres aux jambes ou autre, voire la mort.

8JT-77765-E0

WARNING AVERTISSEMENT

16

17 PZ50RT/PZ50XT/PZ50MT/PZ50MP 18 PZ50XT/PZ50MT/PZ50MP 19 PZ50XT/PZ50MP

18 PZ50RT

19 PZ50RT

20 PZ50MP

21

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Safety information

6

ESU10194

As the vehicles owner, you are responsible for the safe and proper operation of your snowmobile. When you ride your snowmo- bile, you must know and use the following for your safety. Severe injury or death may result if you ignore any of the following.

Before you operate your snowmobile Read the Owners Manual and all labels.

Become familiar with all of the operating controls and their function. Consult a Yamaha dealer about any control or func- tion you do not understand.

Wear protective clothing. Wear an ap- proved helmet, and a face shield or gog- gles. Also, wear a good quality snowmobile suit, boots, and a pair of gloves or mittens that will permit use of your thumbs and fin- gers for operation of the controls.

Do not operate the snowmobile after or while drinking alcohol or taking drugs. Your ability to operate the snowmobile is re- duced by the influence of alcohol or drugs.

Prepare your snowmobile Perform the pre-operation checks each

time you use the vehicle to make sure it is in safe operating condition. Failure to in- spect or maintain the vehicle properly in-

creases the possibility of an accident or equipment damage. See page 33 for a list of pre-operation checks.

Apply the parking brake before starting the engine. Never drive the snowmobile with the parking brake applied. This may over- heat the brake disc and reduce braking ability.

While using your snowmobile This snowmobile was not manufactured for

use on public streets, roads, or highways. Such use is prohibited by law, and you could collide with another vehicle.

PZ50RT, PZ50XT and PZ50MT are de- signed to carry the OPERATOR ONLY. Passengers are prohibited. Carrying a pas- senger can cause loss of control.

Be careful where you ride. There may be obstacles hidden beneath the snow. Stay on established trails to minimize your expo- sure to hazards. Ride slowly and cautiously when you ride off of established trails. Hit- ting a rock or stump, or running into wires could cause an accident and injury.

This snowmobile is not designed for use on surfaces other than snow or ice. Use on dirt, sand, grass, rocks, or bare pavement may cause loss of control and may dam- age the snowmobile.

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Safety information

7

Always ride with other snowmobilers when going on a ride. You may need help if you run out of fuel, have an accident, or dam- age your snowmobile.

Many surfaces such as ice and hard- packed snow require much longer stop- ping distances. Be alert, plan ahead and begin decelerating early. The best braking method on most surfaces is to release the throttle and apply the brake gentlynot suddenly.

Avoid carbon monoxide poisoning All engine exhaust contains carbon monox- ide, a deadly gas. Breathing carbon monox- ide can cause headaches, dizziness, drowsiness, nausea, confusion, and eventu- ally death. Carbon monoxide is a colorless, odorless, tasteless gas which may be present even if you do not see or smell any engine ex- haust. Deadly levels of carbon monoxide can collect rapidly and you can quickly be over- come and be unable to save yourself. Also, deadly levels of carbon monoxide can linger for hours or days in enclosed or poorly-venti- lated areas. If you experience any symptoms of carbon monoxide poisoning, leave the area immediately, get fresh air, and SEEK MEDICAL TREATMENT. Do not run the engine indoors. Even if you

try to ventilate engine exhaust with fans or open windows and doors, carbon monox- ide can rapidly reach dangerous levels.

Do not run the engine in poorly ventilated or partially enclosed areas such as barns, garages, or carports.

Do not run the engine outdoors where en- gine exhaust can be drawn into a building through openings such as windows and doors.

Genuine Yamaha Accessories Choosing accessories for your snowmobile is an important decision. Genuine Yamaha Ac- cessories, which are available only from a Yamaha dealer, have been designed, tested, and approved by Yamaha for use on your snowmobile. Many companies with no con- nection to Yamaha manufacture parts and accessories or offer other modifications for Yamaha vehicles. Yamaha is not in a position to test the products that these aftermarket companies produce. Therefore, Yamaha can neither endorse nor recommend the use of accessories not sold by Yamaha or modifica- tions not specifically recommended by Yamaha, even if sold and installed by a Yamaha dealer.

Maintenance and storage When laying the snowmobile on its side for

maintenance, use a suitable stand to keep it in a stable and level position.

Do not leave the snowmobile on its left side for an extended period of time. Fuel may leak out from the fuel breather hose.

Do not allow anyone to stand behind the snowmobile when starting, inspecting, or adjusting the snowmobile. A broken track, track fittings, or debris thrown by the track could be dangerous to the operator or by- standers.

Modifications made to the snowmobile not approved by Yamaha, or the removal of original equipment may render your snow- mobile unsafe for use, which may cause severe personal injury. Modifications may also make the snowmobile illegal to use.

Never store the snowmobile with fuel in the fuel tank inside a building where ignition sources are present such as hot water and space heaters, an open flame, sparks,

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Safety information

8

clothes dryers, and the like. Allow the en- gine to cool off before storing the snowmo- bile in an enclosed space.

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Description

9

ESU10262

PZ50XT PZ50MP

PZ50RT PZ50MT

18

1,2 3 144,5,6,7,8

17 16 18

1,2 3 144,5,6,7,8

17 16

10

18

1,2 3 144,5,6,7,8

17 16 18

1,2 3 114,5,6,7,8,9

17 16

12 13 14

15 1. Storage pouch 2. Tool kit 3. Air filter 4. Oil filler cap 5. Battery 6. Main fuse 7. Fuse box 8. Coolant reservoir 9. V-belt holder (PZ50MP) 10. Strap (PZ50MT) 11. Passenger grip warmer switch (PZ50MP) 12. Backrest (PZ50MP) 13. Rear carrier (PZ50MP) 14. Tail/brake light 15. Tow hitch (PZ50MP) 16. Slide rail suspension 17. Drive track 18. Idle adjusting screw

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Description

10

TIP The snowmobile you have purchased may differ slightly from those shown in the figures of

this manual. Design and specifications are subjected to change without notice.

PZ50RT/PZ50XT/PZ50MT PZ50MP

1. Brake lever 2. Parking brake lever 3. Grip/thumb warmer adjusting switch 4. Headlight beam switch 5. Multi-function meter unit 6. Engine stop switch

7. Throttle lever 8. Shroud latch (PZ50MP) 9. Main switch 10. Auxiliary DC jack (PZ50MP)

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Control functions

11

ESU10293

Main switch The main switch controls the ignition and lighting systems. The various positions are described below.

Off The ignition circuit is switched off. The key can be removed only in this position.

On The ignition circuit is switched on.

Start The starting circuit is switched on. The starter motor cranks the engine. NOTICE: Release the switch immediately after the engine starts. [ECS00022]

TIP The headlights and taillight come on after the engine is started.

ESU10313

Throttle lever Once the engine is running cleanly, squeez- ing the throttle lever will increase the engine speed and cause engagement of the drive train. Regulate the speed of the snowmobile by varying the throttle position. Because the

throttle is spring-loaded, the snowmobile will decelerate, and the engine will return to idle when it is released.

ESU10348

Throttle override system (T.O.R.S.)

WARNING EWS00042

If the T.O.R.S. is activated, make sure that the cause of the malfunction has been corrected and that the engine can be op- erated without a problem before restarting the engine. Continuing to operate with a malfunction could cause loss of control or damage.

If the throttle valves or throttle cable malfunc- tions during operation, the T.O.R.S. will be activated when the throttle lever is released. The T.O.R.S. is designed to override the fuel injection and limit the engine speed to less than the clutch engagement speed if the throttle valves fail to return to the idle position when the throttle lever is released. (See page 82 for the clutch engagement speed.)

1. Off 2. On 3. Start

1 3 2

1. Throttle lever

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Control functions

12

TIP If the T.O.R.S. is activated, the warning light and engine trouble warning indicator will flash, and the two-digit code 84 will flash in the meter display. If this occurs, have a Yamaha dealer check the system as soon as possible.

ESU10397

Multi-function meter unit The multi-function meter unit is equipped with the following: a digital speedometer an odometer a tripmeter (which shows the distance trav-

eled since it was last set to zero) an engine speed meter (which shows the

engine speed; not for use while riding) warning indicators (which show engine

trouble, coolant temperature, fuel level, oil level, and oil pressure warnings)

indicator lights (which show high beam, low coolant temperature, transmission po- sition, and knock control system condi- tions)

a warning light (which shows warnings to- gether with the warning indicators)

a fuel meter (which shows the fuel remain- ing in the fuel tank)

a grip/thumb warmer level indicator (which shows the grip warmer or the thumb warm- er level)

When the key is turned to the on position, the warning light, the low coolant temperature in- dicator light, the knock control system indi- cator light, the drive indicator light, the reverse indicator light, and all segments of the meter display come on and go off. The grip warmer level is initially displayed for 5 seconds, then the display switches to the fuel meter.

Idling Riding Malfunc- tion

Throttle lever Released Squeezed Released

Throttle valve Closed Open Open

T.O.R.S. Engine

runs properly.

Engine runs

properly.

T.O.R.S. will be

activated.

1. Warning light 2. Engine trouble warning indicator 3. Two-digit code 84

1. Meter display 2. Drive indicator light 3. Reverse indicator light 4. Drive select switch 5. Knock control system indicator light 6. High beam indicator light 7. Low coolant temperature indicator

light 8. Warning light 9. RESET button 10. SELECT button 11. Warning indicators

2 3 4

5678

9

10

111

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Control functions

13

Odometer, tripmeter, and engine speed meter modes

Pushing the SELECT button switches the display between the odometer mode ODO, tripmeter mode TRIP, and engine speed meter mode r/min in the following order: ODO TRIP r/min ODO To reset the tripmeter, push the RESET button for at least 1 second while the tripme- ter is displayed.

TIP To switch the speedometer, odometer, and

tripmeter displays between kilometers and miles, select the odometer mode ODO, and then push the SELECT button for at least 10 seconds while the snowmobile is stopped.

Use the engine speed meter only when checking the snowmobile and performing basic maintenance. The engine speed me- ter should not be used while riding the snowmobile since the reading will vary from the actual engine speed.

ESU10412

High beam indicator light The high beam indicator light comes on when the high beams of the headlights are switched on. (See page 18 for headlight beam switch operation.)

ESU10474

Low coolant temperature indi- cator light The low coolant temperature indicator light comes on when the coolant temperature is low and informs the rider that the snowmobile should be warmed up. After the engine is started, warm it up until the indicator light goes off. The snowmobile can be operated normally after the indicator light goes off.

TIP Drive the snowmobile at low speeds when the low coolant temperature indicator light is on. If the engine speed is too high, maximum engine speed is reduced to protect the en- gine.

1. Odometer/tripmeter/engine speed meter

1

1. High beam indicator light

1. Low coolant temperature indicator light

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Control functions

14

ESU10502

Knock control system indicator light This snowmobile is equipped with a system which detects engine knocking in order to protect the engine from damage. The knock control system indicator light comes on if knocking is detected, then flash- es if the knocking increases.

After the knocking has stopped, the knock control system indicator light goes off.

NOTICE ECS00032

If the knock control system indicator light comes on, the fuel tank may not have been filled with the recommended fuel. Reduce the engine speed to 6000 r/min or less. As soon as possible, stop the engine, let it cool sufficiently, and then drain the fuel and refuel with the recommended fuel.

If the knock control system indicator light is flashing, have a Yamaha dealer check the snowmobile as soon as pos- sible.

TIP To help prevent knocking, use premium un- leaded gasoline only. (See page 24 for more details.)

ESU10494

Drive indicator light and re- verse indicator light These indicator lights show whether the snowmobile is shifted into drive or reverse. The drive indicator light comes on when the transmission is in drive (forward). The reverse indicator light comes on when the transmission is in reverse.

The snowmobile can be shifted into drive or reverse by pushing the drive select switch. (See page 18 for drive select switch opera- tion.) ESU10435

Fuel meter and grip/thumb warmer level indicator The fuel meter and grip/thumb warmer level indicator have eight segments which show the amount of fuel remaining in the fuel tank, the grip warmer level, or the thumb warmer level.

1. Knock control system indicator light 1. Drive select switch 2. Drive indicator light 3. Reverse indicator light

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Control functions

15

Fuel meter The display segments of the fuel meter disap- pear towards E (Empty) as the fuel level de- creases. When only one segment is left near E, the fuel level warning indicator and the warning light come on.

If the fuel level warning indicator and the warning light come on, refuel as soon as pos- sible.

TIP The snowmobile must be stopped on a level surface to obtain an accurate fuel meter reading, since the reading changes accord- ing to the movement and inclination of the snowmobile.

Grip/thumb warmer level indicator When the grip warmer side of the grip/thumb warmer adjusting switch is pressed, the grip warmer indicator comes on and the display switches to the grip warmer level. When the thumb warmer side of the grip/thumb warmer adjusting switch is pressed, the thumb warmer indicator comes on and the display switches to the thumb warmer level. See Grip/thumb warmer adjusting switch on page 19 for detailed information.

TIP The grip/thumb warmer level is displayed

for 5 seconds after releasing the grip/thumb warmer adjusting switch, then the display switches to the fuel meter.

1. Fuel meter and grip/thumb warmer level in- dicator

1. Fuel level warning indicator 2. Warning light

1. Grip/thumb warmer adjusting switch

1. Grip warmer indicator 2. Thumb warmer indicator

1

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Control functions

16

When the engine is started, the grip/thumb warmer levels are set to the levels selected when the engine was last stopped.

ESU10456

Fuel level warning indicator The fuel level warning indicator and the warn- ing light come on when the fuel level is low. (See page 14 for details.) The fuel level warning indicator, the warning light, and all segments of the fuel meter start to flash when a malfunctioning sensor, dis- connected coupler, broken lead, or short cir- cuit is detected by the self-diagnosis device of the snowmobile to warn the rider of any of the above problems. If the fuel level warning indicator, the warning light, and all segments of the fuel meter flash, have a Yamaha dealer inspect the snowmo- bile as soon as possible.

ESU13992

Oil level/pressure warning indicator The oil level/pressure warning indicator has two functions. The warning indicator comes on when the engine oil level is low and when the engine oil pressure is low. The functions are explained in the following sections.

Oil level warning The warning indicator and the warning light come on when the engine oil level is low.

If the warning indicator and the warning light come on, place the snowmobile on a level surface and allow it to idle for one minute. If the warning indicator and the warning light go off, the engine oil level is sufficient, how- ever it is getting low. Add engine oil as soon as possible. If the warning indicator and the warning light do not go off, check the engine oil level in the oil tank (see page 56 for engine oil level checking procedures), and add engine oil if necessary. If the warning indicator and the warning light still remain on, have a Yamaha dealer check the snowmobile.

Oil pressure warning The warning indicator comes on and OP- LO (oil pressure low) appears in the odome- ter display if the engine oil pressure is low when the engine is started. At the same time, the engine speed is limited to less than the clutch engagement speed until the warning indicator goes off. If the engine oil pressure remains low for one minute, the engine stops. If this occurs, have a Yamaha dealer check the snowmobile.

1. Fuel level warning indicator 2. Warning light 3. Fuel meter

1. Oil level/pressure warning indicator 2. Warning light

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Control functions

17

TIP If there is no engine oil in the oil passages when the engine is started, such as after the engine oil is changed, the warning indicator may come on and OP-LO may appear in the odometer display for a few seconds until the oil circulates through the engine. The snowmobile can be operated normally after the warning indicator goes off.

ESU10514

Coolant temperature warning indicator If the engine overheats, the coolant tempera- ture warning indicator and the warning light come on. When this occurs, stop the engine immediately and allow the engine to cool down, and then check the coolant level in the coolant reservoir. (See page 60 for checking procedures.)

NOTICE ECS00042

Do not continue to operate the engine if it is overheating.

ESU12687

Self-diagnosis device This model is equipped with a self-diagnosis device for various electrical circuits. If a problem is detected in any of those cir- cuits, the warning light and the engine trouble warning indicator flash, and an error code flashes slowly in the meter display. Note the error code, and then have a Yamaha dealer inspect the snowmobile as soon as possible. NOTICE: Do not continue to operate the engine longer than necessary if there is an error code to avoid possible engine dam- age. [ECS00821]

1. OP-LO (oil pressure low) 2. Oil level/pressure warning indicator

1

2

1. Coolant temperature warning indicator

2. Warning light

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Control functions

18

ESU10546

Drive select switch The drive select switch is used to shift the snowmobile into drive or reverse. After com- ing to a complete stop, press the drive select switch. The drive indicator light comes on when the transmission is in drive (forward). The reverse indicator light comes on when the transmission is in reverse.

NOTICE ECS00053

Do not use the drive select switch while the snowmobile is moving. Otherwise, the drive train could be damaged.

ESU10532

Engine stop switch The engine stop switch is used to stop the engine in an emergency. Simply push the stop switch to stop the engine. To start the engine, pull the stop switch and proceed with starting the engine. (See page 35 for engine starting procedures.)

During the first few rides, practice using the stop switch so that you can react quickly in an emergency. ESU10662

Headlight beam switch LIGHTS Push the headlight beam switch to change the headlight to high beam HI or to low beam LO.

1. Warning light 2. Engine trouble warning indicator 3. Error code display

1. Drive select switch 2. Drive indicator light 3. Reverse indicator light

3 2

1. Engine stop switch

1. Headlight beam switch LIGHTS 2. High beam HI 3. Low beam LO

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19

ESU10677

Grip/thumb warmer adjusting switch The grip/thumb warmer adjusting switch controls the electrically heated handlebar grips and throttle lever.

To raise the temperature To raise the grip warmer temperature, press the side of the switch. To raise the thumb warmer temperature, press the side of the switch.

To lower the temperature Continue to press the switch until the temper- ature level returns to the minimum level, and then raise the temperature to the desired lev- el. See Fuel meter and grip/thumb warmer level indicator on page 14 for detailed informa- tion. ESU10697

Auxiliary DC jack (PZ50MP) The auxiliary DC jack is located in the front panel and can be used for accessories.

TIP The auxiliary DC jack can only be used if the engine is running.

To use the auxiliary DC jack 1. Start the engine.

2. Open the auxiliary DC jack cap, and then insert the accessory power plug into the jack.

3. After using the auxiliary DC jack, be sure to remove the accessory power plug from the jack and to close the auxiliary DC jack cap.

NOTICE ECS00123

To avoid circuit overload and a possible fuse blowing, do not use accessories re- quiring more than the maximum rated capacity for the auxiliary DC jack. (See page 75 for the specified fuse amper- age.)

Do not use an automotive cigarette lighter or other accessory with a plug that gets hot because the jack can be damaged.

ESU10552

Brake lever The snowmobile is stopped by braking the entire drive system. Squeeze the brake lever towards the handle- bar grip to stop the snowmobile.

1. Grip/thumb warmer adjusting switch

1

1. Auxiliary DC jack cap 2. Auxiliary DC jack

Maximum rated capacity: DC 12 V, 2.5 A (30 W)

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20

TIP When the brake lever is squeezed, the brake light comes on.

NOTICE ECS00061

Make sure that the brake lever end does not project out over the handlebar end. This will help prevent brake lever damage when the snowmobile is placed on its side for service.

ESU10582

Parking brake lever When parking the snowmobile or starting the engine, apply the parking brake by moving the parking brake lever to the left.

To release the parking brake, move the park- ing brake lever to the right.

ESU14212

Drive guard

WARNING EWS00403

Coming in contact with the rotating V- belt or clutch parts can cause severe in- jury or death. Never run the engine with the drive guard removed.

Make sure that the drive guard is in- stalled securely before operating the snowmobile to protect against severe injury or death from a broken V-belt or other part should it come off the snow- mobile while it is in operation.

NOTICE ECS00931

Never run the engine with the V-belt re- moved. Clutch components can be damaged.

Be careful not to scratch the windshield when removing or installing the drive guard.

The drive guard is designed to protect the V- belt clutch and V-belt in case parts break or come loose. The drive guard is located behind the left side cover. (See page 48 for removal procedures.)

To remove the drive guard 1. Pull out the drive guard locking pin from

the drive guard upper holder.

1. Brake lever

1. Parking brake lever

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Control functions

21

2. Slightly raise the front of the drive guard, and then lift up the drive guard to remove it.

To install the drive guard 1. Fit the slots in the rear of the drive guard

onto the projections on the drive guard rear holder.

2. Align the slots in the top of the drive guard with the projections on the drive guard upper holder, and then insert the drive guard locking pin into the holder.

ESU10771

V-belt holder (PZ50MP) Keep a spare V-belt for emergency use by placing it into the V-belt holder provided.

NOTICE ECS00191

Make sure that the V-belt is installed se- curely in the holder.

ESU10682

Passenger grip warmer switch (PZ50MP) The passenger grip warmer switch controls the electrically heated passenger grips.

1. Drive guard locking pin 2. Drive guard

1. Drive guard

1. V-belt holder

1. Passenger grip warmer switch 2. Off 3. HI (high) 4. LO (low)

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22

ESU10803

Backrest (PZ50MP) The backrest is adjustable.

To adjust the backrest angle 1. Open the backrest zipper and loosen the

backrest bolts.

2. Adjust the backrest angle to the desired position.

3. Tighten the bolts and close the zipper.

WARNING EWS00132

Do not sit on the backrest. Otherwise, you could lose your balance, fall, and be in- jured.

ESU12994

Storage pouch The storage pouch is located behind the front bumper. Use the storage pouch to store the tool kit, spare parts, such as the V-belt (PZ50RT / PZ50XT / PZ50MT), or other small items.

To remove the storage pouch Unfasten the storage pouch upper and lower buckles, and then pull the storage pouch off as shown.

To install the storage pouch 1. Put the storage pouch in the original po-

sition. 2. Fasten the storage pouch upper buckles. 3. Pass the storage pouch lower strap be-

tween the bracket and the frame, and then fasten the buckle to secure the pouch.

1. Backrest bolt

Backrest bolt tightening torque: 23 Nm (2.3 mkgf, 17 ftlbf)

1. Storage pouch

1. Storage pouch buckle

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23

TIP Be sure to route the storage pouch lower

strap above the bracket fasteners. When installing the storage pouch, make

sure that the storage pouch buckles are se- curely fastened.

Storing the spare V-belt (PZ50RT / PZ50XT / PZ50MT) Keep a spare V-belt for emergency use by storing it in the storage pouch.

TIP When storing a spare V-belt in the storage pouch, be sure to secure it with the hook and loop fastener.

ESU10841

Rear carrier (PZ50MP) The rear carrier is located at the rear of the snowmobile.

WARNING EWS00141

Do not use the rear carrier to lift the snow- mobile. The snowmobile could fall, which could result in severe injury or death.

ESU10853

Tow hitch (PZ50MP)

NOTICE ECS00242

To prevent premature wear of the V-belt, avoid traveling under 10 km/h (6 mi/h) when towing for long distances or long pe- riods of time.

Use the tow hitch within the specified weight limits.

1. Storage pouch lower strap 2. Storage pouch 3. Bracket fastener

1. Hook and loop fastener

1. Rear carrier

Maximum load limit: 20 kg (44 lbs)

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24

ESU10627

Fuel

WARNING EWS00072

Gasoline and gasoline vapors are ex- tremely flammable. To avoid fires and ex- plosions and to reduce the risk of injury when refueling, follow these instructions.

Make sure there is sufficient gasoline in the tank. 1. Before refueling, turn off the engine and

be sure that nobody is on the snowmo- bile. Never refuel while smoking, or while in the vicinity of sparks, open flames, or other sources of ignition such as the pilot lights of water heaters and clothes dry- ers.

2. Do not overfill the fuel tank. Stop filling when the fuel reaches the bottom of the filler tube. Because fuel expands when it heats up, heat from the engine or the sun can cause fuel to spill out of the fuel tank.

3. Wipe up any spilled fuel immediately. 4. Be sure the fuel tank cap is closed se-

curely by turning it clockwise.

WARNING EWS00681

Gasoline is poisonous and can cause inju- ry or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow some gasoline or inhale a lot of gasoline vapor, or get some gasoline

1. Tow hitch

Tow weight limit: 120 kgf (264 lbf)

Vertical weight limit: 15 kgf (33 lbf)

1. Filler tube 2. Maximum fuel level

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25

in your eyes, see your doctor immediately. If gasoline spills on your skin, wash with soap and water. If gasoline spills on your clothing, change your clothes.

Your Yamaha engine has been designed to use premium unleaded gasoline with a pump octane number [(R+M)/2] of 91 or higher, or a research octane number of 95 or higher. If the recommended fuel is not used, the en- gine may not perform as it should.

NOTICE ECS00085

Oxygenated fuels (gasohol) containing a maximum 10% of ethanol (E10) can be used, although richer jetting may be re- quired to prevent engine damage. Con- sult a Yamaha dealer. Gasohol containing methanol is not recommend- ed.

Make sure that snow or ice does not en- ter the fuel tank when refueling.

Do not use alcohol deicers or water ab- sorbing additives with oxygenated fuel.

The fuel tank should be filled with the recommended gasoline. The use of oth- er gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the ex- haust system.

ESU10875

Suspension The suspension can be adjusted to suit rider preference. Softer settings, for example, may provide greater rider comfort, while harder settings may allow more precise handling and control over certain types of terrain or riding conditions. If you are not familiar with suspension adjust- ments, have a Yamaha dealer make these adjustments.

WARNING EWS00152

Read and understand the following infor- mation before handling shock absorbers that contain highly pressurized nitrogen gas. Do not tamper with or attempt to open

the cylinder assemblies. Do not subject the shock absorbers to

an open flame or other high heat source. This may cause the unit to explode due to excessive gas pressure.

Do not deform or damage the cylinders in any way. Cylinder damage will result in poor damping performance.

Do not dispose of a damaged or worn out shock absorber yourself. Take the shock absorber to a Yamaha dealer for any service.

ESU10906

Adjusting the spring preload of the front shock absorbers (PZ50XT / PZ50MT / PZ50MP)

WARNING EWS00721

The spring preload of the left and right shock absorbers must be adjusted to the same setting. Uneven settings can cause poor handling and loss of stability.

Recommended fuel: PREMIUM UNLEADED GASOLINE ONLY

Fuel tank capacity: PZ50MP 32.9 L (8.69 US gal, 7.24 Imp.gal) PZ50MT 26.7 L (7.05 US gal, 5.87 Imp.gal) PZ50RT 26.7 L (7.05 US gal, 5.87 Imp.gal) PZ50XT 26.7 L (7.05 US gal, 5.87 Imp.gal)

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26

The spring preload can be adjusted by turn- ing the adjusting rings (PZ50MT) or adjusting nuts (PZ50XT / PZ50MP). Adjust the spring preload as follows.

PZ50MT To increase the spring preload and thereby harden the suspension, turn the adjusting ring in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting ring in direction (b).

PZ50XT / PZ50MP 1. Loosen the locknut. 2. To increase the spring preload and

thereby harden the suspension, turn the adjusting nut in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting nut in direction (b).

TIP The spring preload setting is determined by measuring distance A, shown in the illustra- tion. The longer distance A is, the higher the spring preload; the shorter distance A is, the lower the spring preload.

3. Tighten the locknut to the specified torque. NOTICE: Always tighten the locknut against the adjusting nut, and then tighten the locknut to the speci- fied torque. [ECS00861]

1. Spring preload adjusting ring

Spring preload setting: Minimum (soft):

1 Standard:

1 Maximum (hard):

5

(a)

(b)

1. Locknut 2. Distance A 3. Spring preload adjusting nut

Spring preload setting*: Minimum (soft):

PZ50XT 113.5 mm (4.47 in) PZ50MP 137.5 mm (5.41 in)

Standard: 138.5 mm (5.45 in)

Maximum (hard): 148.5 mm (5.85 in)

* Distance A changes 1.5 mm (0.06 in) with each full turn of the adjusting nut.

Tightening torque: Locknut:

PZ50XT 30 Nm (3.0 mkgf, 22 ftlbf) PZ50MP 42 Nm (4.2 mkgf, 30 ftlbf)

(a)

(b)

13

2

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Control functions

27

ESU12558

Adjusting the air pressure of the front shock absorbers (PZ50RT)

WARNING EWS00731

The air pressure of the left and right shock absorbers must be adjusted to the same setting. Uneven settings can cause poor handling and loss of stability.

The air pressure of the shock absorbers can be adjusted using the shock absorber pump included with your snowmobile.

To adjust the air pressure

WARNING EWS00622

Support the snowmobile securely on a suitable stand before adjusting the shock absorbers. Otherwise, the snowmobile could fall and cause injury.

NOTICE ECS00711

Make sure that there is no load on the shock absorbers and that they are fully ex- tended before making any air pressure ad- justments.

1. Place the snowmobile on a level surface and apply the parking brake.

2. Lift the front of the snowmobile onto a suitable stand to raise the skis off the ground.

3. Remove the air valve cap from the shock absorber.

4. Install the hose connector of the shock absorber pump onto the air valve of the shock absorber and tighten it approxi- mately six turns until the pressure regis- ters on the pump gauge. NOTICE: Do not overtighten the connector onto the air valve as this will damage the connector seal. [ECS00722]

TIP If the shock absorber has no air pressure, the gauge reading will be zero.

5. To increase the air pressure, operate the pump a few times. The pressure should increase slowly. If the pressure increases rapidly, check to make sure that the pump is properly connected and tight- ened onto the air valve. To decrease the

1. Shock absorber pump

1. Air valve cap

1. Hose connector

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28

air pressure, push the black bleed valve button. NOTICE: Do not exceed 1034 kPa (10.3 kgf/cm, 150 psi). [ECS00734]

TIP To allow pressure to escape from the pump and the shock absorber, push the button halfway down and hold it. To allow only a small amount of pressure to escape, push the button all the way down and quickly release it.

6. Remove the hose connector from the air valve.

TIP When removing the connector, the sound of air escaping may be heard, but this is from the pump hose, not the shock absorber.

7. Install the air valve cap.

TIP If the front shock absorber bottoms too easily or rolls too much during cornering, increase the air pressure by 34 kPa (0.3 kgf/cm, 5 psi). If the shock absorber is too firm and you want a more compliant ride, decrease the air pres- sure by 34 kPa (0.3 kgf/cm, 5 psi).

ESU10938

Adjusting the spring preload of the center shock absorber and the rear torsion springs The spring preload can be adjusted by turn- ing the adjusting ring (PZ50MT) or adjusting nut (PZ50RT / PZ50XT / PZ50MP) on the center shock absorber and the adjusters on the rear torsion springs. Adjust the spring preload as follows.

Center shock absorber (PZ50MT) To increase the spring preload and thereby harden the suspension, turn the adjusting ring in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting ring in direction (b).

1. Bleed valve button

Air pressure range: PZ50RT 3451034 kPa (3.510.3 kgf/cm, 50150 psi)

Recommended air pressure: PZ50RT 483 kPa (4.8 kgf/cm, 70 psi)

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29

PZ50MT

Center shock absorber (PZ50RT / PZ50XT / PZ50MP) 1. Loosen the locknut. 2. To increase the spring preload and

thereby harden the suspension, turn the adjusting nut in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting nut in direction (b).

TIP The spring preload setting is determined by measuring distance A, shown in the illustra- tion. The longer distance A is, the higher the spring preload; the shorter distance A is, the lower the spring preload.

3. Tighten the locknut to the specified torque. NOTICE: Always tighten the locknut against the adjusting nut, and then tighten the locknut to the speci- fied torque. [ECS00861]

Rear torsion springs

WARNING EWS00751

The left and right spring preloads must be adjusted to the same setting. Uneven set- tings can cause poor handling and loss of stability.

1. Spring preload adjusting ring

Spring preload setting: Minimum (soft):

1 Standard:

3 Maximum (hard):

5

1. Spring preload adjusting nut 2. Distance A 3. Locknut

(b)

(a)

(a)

(b)

2

1

3

Spring preload setting*: Minimum (soft):

PZ50RT 112.5 mm (4.43 in) PZ50XT 110.5 mm (4.35 in) PZ50MP 111.5 mm (4.39 in)

Standard: PZ50RT 113.5 mm (4.47 in) PZ50XT 120.5 mm (4.74 in) PZ50MP 112.5 mm (4.43 in)

Maximum (hard): PZ50RT 123.5 mm (4.86 in) PZ50XT 126.5 mm (4.98 in) PZ50MP 122.5 mm (4.82 in)

* Distance A changes 1.5 mm (0.06 in) with each full turn of the adjusting nut.

Tightening torque: Locknut:

PZ50XT 30 Nm (3.0 mkgf, 22 ftlbf) PZ50RT / PZ50MP 42 Nm (4.2 mkgf, 30 ftlbf)

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30

To increase the spring preload and thereby harden the suspension, turn the adjuster in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjuster in direction (b).

ESU13095

Adjusting the 2-up adjusting blocks (PZ50MP)

WARNING EWS00761

Make sure that the 2-up adjusting blocks are installed in the same position on both sides of the snowmobile, otherwise poor handling and loss of stability may result.

The spring force can be adjusted by chang- ing the position of the 2-up adjusting blocks.

TIP Be sure to make this adjustment when

there is no load (rider or cargo) on the snowmobile.

Use the special tools included in the own- ers tool kit to make the adjustment.

1. Insert the special tools into the 2-up ad- justing block as shown.

2. Pull the lock pin and turn the special tools to change the block position.

3. Release the lock pin. 4. Remove the special tools from the 2-up

adjusting block.

1. Spring preload adjuster

Spring preload setting: Minimum (soft):

S Standard:

M Maximum (hard):

H

(a)

(b)

1. 2-up adjusting block

1. 2-up position (rider and passenger) 2. Solo rider position 3. Special tool 4. Lock pin

1

2

3 4

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31

ESU13291

Adjusting the compression damping force of the rear shock absorber (PZ50RT) The compression damping force can be ad- justed by turning the adjusting knob. To increase the compression damping force, turn the adjusting knob in direction (a). To de- crease the compression damping force, turn the adjusting knob in direction (b). NOTICE: Do not continue to turn the adjusting knob in direction (a) after it stops. The shock ab- sorber could be damaged and damping force adjustments will not be able to be made. Do not turn the adjusting knob in di- rection (b) more than 12 click(s). Even if the adjusting knob is continually turned af- ter 12 click(s), there will be no change in the damping force. Be sure to stop the ad- justing knob at a position where there is a click. [ECS00911]

ESU11036

Adjusting the control rods (PZ50MP)

WARNING EWS00771

The left and right adjusting nuts must be set to the same position. Uneven settings can cause poor handling and loss of sta- bility.

The weight transfer can be adjusted by turn- ing the adjusting nuts on the control rods. 1. Loosen the locknut while holding the ad-

justing nut.

2. To increase weight transfer, turn the ad- justing nut in direction (a), and to de- crease weight transfer, turn it in direction (b). WARNING! Never adjust the con- trol rods beyond the maximum set-

1. Compression damping force adjusting knob

Compression damping force setting: Minimum (soft):

12 click(s) in direction (b)* Standard:

6 click(s) in direction (b)* Maximum (hard):

1 click(s) in direction (b)* * With the adjusting knob fully turned in

direction (a)

(b) (a)

1

1. Locknut 2. Control rod adjusting nut

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Control functions

32

ting, indicated by red paint; otherwise, they could be damaged, which could lead to an accident or injury. [EWS00174]

3. Tighten the locknut while holding the ad- justing nut in place. NOTICE: Always tighten the locknut against the adjust- ing nut, and then tighten the locknut to the specified torque. [ECS00861]

1. Locknut 2. Control rod adjusting nut 3. Standard position 4. Adjustable range 5. Red paint area

Locknut tightening torque: 25 Nm (2.5 mkgf, 18 ftlbf)

1

5

2 3

4

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Pre-operation checks

33

ESU11072

Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condi- tion. Always follow the inspection and maintenance procedures and schedules described in the Owners Manual.

WARNING EWS00192

Failure to inspect or maintain the vehicle properly increases the possibility of an acci- dent or equipment damage. Do not operate the vehicle if you find any problem. If a prob- lem cannot be corrected by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer.

ESU11082

Pre-operation check list ITEM CHECKS PAGE

Fuel Check fuel level. Refuel if necessary. Check fuel line for leakage.

24

Engine oil

Check oil level in engine. If necessary, add recommended oil to specified

level. Check vehicle for oil leakage.

56

Coolant Check coolant level. Add if necessary. 60

V-belt Check for wear and damage. Replace if necessary. 62

Drive guard Make sure the drive guard is installed securely. Check the drive guard mounts for damage. 20

Brake

Check operation. If soft or spongy, have Yamaha dealer bleed hy-

draulic system. Check brake pads for wear. Replace if necessary. Check fluid level in master cylinder. If necessary, add recommended brake fluid to

specified level. Check hydraulic system for leakage.

65

Air filter Check that there is no snow under the air filter ele-

ment. If necessary, brush off the snow.

55

Tool kit and recommended equipment Check for proper placement. 48, 48

Shroud and covers Make sure that the shroud and covers are securely fastened. 48

Skis and ski runners Check for wear and damage. If necessary, have Yamaha dealer replace skis or

ski runners. 67

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Pre-operation checks

34

Front shock absorbers (PZ50RT)

Check air pressure. Adjust if necessary. 27

Drive track

Check the deflection. Adjust if necessary. Check for wear and damage. If necessary, have a Yamaha dealer replace track.

69

Slide runners Check for wear and damage. If necessary, have Yamaha dealer replace slide

runners. 69

Steering Check for excessive free play. 69

Strap (PZ50MT) Check for damage. Replace if necessary. 41

Lights, signals and switch- es

Check operation. Correct if necessary. 18, 18, 73, 74

Throttle lever Make sure that operation is smooth and spring back to its original position when released. 11

Throttle override system (T.O.R.S.)

Check the T.O.R.S. for proper operation. If system is not functioning properly, have Yamaha

dealer check vehicle. 54

ITEM CHECKS PAGE

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Operation

35

ESU13503

Read the Owners Manual carefully to be- come familiar with all controls. If there is a control or function you do not understand, ask your Yamaha dealer.

WARNING EWS00204

Failure to familiarize yourself with the con- trols can lead to loss of control, which could cause an accident or injury.

ESU13213

TIP This model is equipped with: an engine oil pressure switch to stop the

engine in case an engine oil pressure drop is detected. To start the engine after this system has stopped the engine, be sure to place the snowmobile on a level surface, and then turn the key in the main switch to the off position, and then to the on position. Failing to do so will prevent the engine from starting even though the engine will crank when turning the key to the start position. If the engine does not start or if it stops again, ask a Yamaha dealer to inspect the snowmobile.

an engine overheating prevention system, which prevents overheating when the en- gine is idling. When the engine has been idling for 3 minutes or longer and the cool- ant temperature has risen above 100 C (212 F), the engine automatically stops to prevent overheating. The engine can be started after it stops.

ESU11304

Starting the engine 1. Apply the parking brake.

2. Be sure the engine stop switch is in the run position. The starter motor cannot be operated when the engine stop switch is in the off position.

3. Turn the main switch to the start position and release it when the engine starts. NOTICE: Release the switch immedi- ately after the engine starts. If the en- gine fails to start, release the switch, wait a few seconds, then try again. Each attempt should be as short as possible to preserve the battery. Do not crank the engine more than 10 seconds on any one attempt. [ECS00332]

1. Run position 2. Off position

1 2

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Operation

36

4. Warm up the engine until it runs smooth- ly.

5. Be sure the low coolant temperature in- dicator light has gone out before opera- tion. (See page 13 for detailed information about the indicator light.)

ESU11321

Break-in There is never a more important period in the life of your engine than the period between 0 and 500 km (300 mi). For this reason, you should read the following material carefully. Since the engine is brand new, do not put an excessive load on it for the first 500 km (300 mi). The various parts in the engine wear and polish themselves to the correct operating clearances. During this period, prolonged full-throttle operation or any condition that might result in engine overheating must be avoided.

Operating your snowmobile for the first time Start the engine and let it idle for 15 minutes. 0160 km (0100 mi) Avoid prolonged operation above 8000 r/min. 160500 km (100300 mi) Avoid prolonged operation above 10000 r/min. 500 km (300 mi) and beyond The snowmobile can now be operated nor- mally.

NOTICE ECS00341

After 800 km (500 mi) of operation, the engine oil must be changed and the oil filter cartridge replaced.

If any engine trouble should occur dur- ing the engine break-in period, immedi- ately have a Yamaha dealer check the snowmobile.

ESU11334

Riding your snowmobile

Getting to know your snowmobile

WARNING EWS00212

To avoid severe injury or death: Keep both hands on the handlebar dur-

ing operation. Never put your feet outside the running

boards. Avoid higher speeds or more difficult

maneuvers until you have become thor- oughly familiar with your snowmobile and all of its controls.

A snowmobile is a rider active vehicle, and your riding position and your balance are the two basic factors of maneuvering your snow- mobile. Riding your snowmobile requires skills ac- quired through practice over a period of time. Take the time to learn the basic techniques well before attempting more difficult maneu- vers. Riding your new snowmobile can be a very enjoyable activity, providing you with hours of pleasure. However, it is essential to familiar- ize yourself with the operation of the snow- mobile to achieve the skill necessary to enjoy riding safely. Before operating the snowmo- bile, read this Owners Manual completely and understand the operation of the controls.

1. Start

1

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Operation

37

Pay particular attention to the safety informa- tion on page 6. Please read all warning and notice labels on your snowmobile. Also, read the Snowmobil- ers Safety Handbook that is supplied with your snowmobile.

Learning to ride your snowmobile Before you ride, always perform the pre-op- eration checks listed on page 33. The short time spent checking the condition of the snowmobile will be rewarded with added safety and a more reliable snowmobile. Al- ways wear the proper clothing for both warmth and to help protect you from injury if an accident occurs. Become familiar with operating your snow- mobile at low speeds, even if you are an ex- perienced rider. Do not attempt to operate at maximum performance until you are totally familiar with the snowmobiles handling and performance characteristics. The beginning operator should select a large flat area to become familiar with the snowmo- bile. Make sure that this area is free of obsta- cles and other traffic. You should practice control of the throttle and brake, and master turning techniques in this area before trying more difficult terrain. Set the parking brake and follow the instruc- tions on page 35 to start the engine. Once the engine has warmed up, you are ready to be- gin riding your snowmobile.

To start out and accelerate 1. With the engine idling, release the park-

ing brake. 2. Apply the throttle slowly and smoothly.

The V-belt clutch will engage and you will start to accelerate. WARNING! Do not allow anyone to stand behind the snowmobile when starting the engine.

A broken track, track fittings, or debris thrown by the track could be danger- ous to bystanders. [EWS00691]

Braking

WARNING EWS00221

Many surfaces such as ice and hard- packed snow require much longer stop- ping distances. Be alert, plan ahead, and begin decelerating early.

Improper use of the brake can cause the drive track to lose traction, reduce con- trol, and increase the possibility of an accident.

When slowing down or stopping, release the throttle and apply the brake gentlynot sud- denly.

Turning For most snow surfaces, body English is the key to turning. As you approach a curve, slow down and be- gin to turn the handlebar in the desired direc- tion. As you do so, put your weight on the running board to the inside of the turn and lean your upper body into the turn.

This procedure should be practiced at low speeds many times, in a large flat area with no obstacles. Once you have learned this technique, you should be able to perform it at

U8GK77E0.book Page 37 Wednesday, April 2, 2014 11:49 AM

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38

higher speeds or in tighter curves. Lean more as the turn gets sharper or is made at higher speeds. Improper riding techniques such as abrupt throttle changes, excessive braking, incor- rect body movements, or too much speed for the sharpness of the turn may cause the snowmobile to tip. If your snowmobile begins to tip while turn- ing, lean more into the turn to regain balance. If necessary, gradually let off on the throttle or steer to the outside of the turn. Remember: Avoid higher speeds until you are thoroughly familiar with the operation of your snowmo- bile.

Riding uphill

WARNING EWS00232

Operation on slopes can lead to loss of control if proper techniques are not used. Follow these instructions to reduce your risk of an accident. Do not try steeper or more difficult inclines until you have devel- oped your skill on gentle slopes.

You should practice first on gentle slopes. Try more difficult climbs only after you have de- veloped your skill. As you approach a hill, ac- celerate before you start the climb, and then reduce the throttle to prevent track slippage. It is also important to keep your weight on the uphill side at all times. On climbs straight up the hill, this can be accomplished by leaning forward and, on steeper inclines, standing on the running boards and leaning forward over the handlebar. (Also see Traversing a slope.)

Slow down as you reach the crest of the hill, and be prepared to react to obstacles, sharp drops, or other vehicles or people which may be on the other side. If you are unable to con- tinue up a hill, do not spin the track. Stop the engine and set the parking brake. Then pull the rear of the snowmobile around to point the snowmobile back down the hill. When the snowmobile is pointed downhill, mount your snowmobile from the uphill side. Restart the engine, release the parking brake, and de- scend the hill.

Riding downhill

WARNING EWS00241

Use extra caution when applying the brake during a descent. Excessive braking will cause the drive track to lock, causing a loss of control.

When riding downhill, keep speed to a mini- mum. It is important to apply just enough throttle to keep the clutch engaged while de- scending the hill. This will allow you to use engine compression to help slow the snow- mobile, and to keep the snowmobile from rolling freely down the hill. Also apply the brake frequently, with light pressure.

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Traversing a slope

WARNING EWS00252

Driving across the face of a slope (side- hilling) can lead to overturn or loss of control if proper techniques are not used. Follow these instructions to reduce your risk of an accident. Do not try steeper or more difficult inclines until you have devel- oped your skill on gentle slopes.

Traversing a slope requires you to properly position your weight to maintain proper ba- lance. As you travel across the slope, lean your body to position your weight towards the uphill side. A recommended riding posi- tion is to kneel with the knee of your downhill leg on the seat and the foot of your uphill leg on the running board. This position will make it easier for you to shift your body weight as needed.

Snow and ice are slippery, so be prepared for the possibility that your snowmobile could begin to slip sideways on the slope. If this happens, steer in the direction of the slide if there are no obstacles in your path. As you regain proper balance, gradually steer again in the direction you wish to travel. If your snowmobile starts to tip, steer down the hill to regain balance. WARNING! If you are unable to maintain correct balance, and your snowmobile is going to tip over, dismount your snowmobile immediately on the uphill side to avoid being hit or caught under the snowmobile as it tips over. [EWS00262]

Ice or icy surface

WARNING EWS00271

When you have to operate on ice or icy surfaces, drive slowly and cautiously. Avoid accelerating, turning, and braking rapidly. Steering is minimal and uncon- trolled spins are an ever-present danger.

Operating on ice or icy surfaces can be very dangerous. Traction for turning, stopping, and starting is much less than that on snow.

Hard-packed snow It can be more difficult to negotiate on hard- packed snow as both the skis and drive track do not have as much traction as when the snowmobile is operated on fresh snow. Avoid rapid acceleration, turning, and braking.

Operation on surfaces other than snow or ice Operation of your snowmobile on surfaces other than snow or ice should be avoided. Operation under such conditions will damage or result in rapid wear of the ski runners, drive

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Operation

40

track, slide runners, and drive sprockets. Op- eration of the snowmobile on the following surfaces should be avoided at all times: Dirt Sand Rocks Grass Bare pavement Other surfaces that should be avoided for the sake of drive track and slide runner life are: Glare ice surfaces Snow mixed with a lot of dirt and sand All of the above surfaces have one thing in common in regard to drive track and slide runners: little or no lubricating ability. Drive track and all slide rail systems require lubrica- tion (snow or water) between the slide run- ners and the slide metal. In the absence of lubrication, the slide runners will rapidly wear and in severe cases, literally melt away, and the drive track will be subject to damage or failure. Also traction aids such as studs, cleats, etc., may cause further track damage or failure.

WARNING EWS00281

Drive track damage or failure could result in loss of braking ability and snowmobile control, which could cause an accident. Always check the drive track for dam-

age or maladjustment before operating the snowmobile.

Do not operate the snowmobile if you find damage to the drive track.

NOTICE ECS00351

Ride on fresh snow frequently. Operating on ice or hard-packed snow will rapidly wear the slide runners.

ESU11351

Maximizing drive track life

Recommendations Track tension During initial break-in, the new drive track will tend to stretch quickly as the track settles. Be sure to correct the track tension and align- ment frequently. (See page 69 for adjustment procedures.) A loose track can slip (ratchet), derail or catch on suspension parts causing severe damage. Do not overtighten the drive track, otherwise it may increase the friction between the track and the slide runners, re- sulting in the rapid wear of both components. Also, this may put an excessive load on the suspension components, resulting in compo- nent failure.

Marginal snow The drive track and the slide runners are lu- bricated and cooled by snow and water. To prevent the drive track and slide runners from overheating, avoid sustained high-speed usage in areas such as icy trails, frozen lakes and rivers that have minimal snow coverage. An overheated track will be weakened inter- nally, which may cause failure or damage.

Off-trail riding Avoid off-trail riding until there is sufficient snow coverage. It generally takes several feet of snow to provide a good overall base to properly cover debris, such as rocks, logs, etc. If snow coverage is not sufficient, stay on trails to avoid impact damage to the drive track.

Studded track In general, track life will be shortened when studs are installed. Drilling stud holes into the drive track will cut the internal fibers, which weakens the track. Avoid spinning the drive track. Studs may catch on an object and pull out of the track, leaving tears and damage

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41

around the already weakened area. To mini- mize possible damage, consult your stud manufacturer for installation and stud pattern recommendations. Yamaha does not recommend track stud- ding. ESU11361

Strap (PZ50MT) The strap should be used only by experi- enced operators to assist them when tra- verse (side-hill) riding.

WARNING EWS00291

Improper use of the strap on the handle- bar can result in severe injury or death. Use the strap only as an operator grip

point when needed to shift weight uphill to maintain balance during traverse (side-hill) riding. Only experienced oper- ators should traverse slopes steep enough to require strap use.

Keep the right hand on the right handle- bar grip for steering, and grip the strap with the left hand to shift weight uphill for balance during traverse riding.

Ride cautiously while using the strap. Do not accelerate or decelerate abruptly while holding onto the strap.

Do not use the strap to lift the snowmo- bile.

Do not use the strap as a mounting point for cargo or accessories.

ESU1140A

Driving

WARNING EWS00301

Be sure to read the SAFETY INFORMA- TION section on page 6 and the Riding your snowmobile section on page 36 carefully before operating the snowmo- bile.

WARNING EWS00323

Make sure that the throttle lever is fully released and the snowmobile is at a full stop before shifting.

Be sure to press the drive select switch only while the engine is idling.

Make sure that the reverse indicator light comes on and remains on, and that the area behind the snowmobile is clear before reversing. Watch behind.

Reduce speed and avoid sharp turning when operating the snowmobile in re- verse.

TIP Make sure that the engine is warmed up enough before riding.

1. While the engine is idling, select the de- sired operating position by pressing the drive select switch. Make sure that the drive indicator light or the reverse indica- tor light flashes, and then remains on. Once the indicator light for the selected position remains on, the snowmobile can be driven. NOTICE: Do not shift from drive to reverse or from reverse to drive while the snowmobile is moving, as the drive train could be damaged. [ECS00852]

1. Strap

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42

TIP If the indicator light keeps flashing, the snow- mobile is not correctly shifted into drive or re- verse. If this occurs, applying a little throttle while applying the brake will help the trans- mission to engage.

TIP The reverse buzzer beeps while the transmis- sion is in reverse.

2. While squeezing the brake lever, release the parking brake by moving the parking brake lever to the right, and then release the brake lever.

3. Squeeze the throttle lever slowly to start out.

4. Turn the handlebar in the desired direc- tion.

5. Squeeze the brake lever to stop the snowmobile.

6. Apply the parking brake by moving the parking brake lever to the left.

ESU11412

Stopping the engine Turn the main switch to the off position to

stop the engine.

Push down the engine stop switch to stop the engine in an emergency.

ESU11431

Transporting When transporting your snowmobile on a trailer or in a truck, observe the following rec- ommendations to help protect it from dam- age: If transporting the snowmobile in an open

trailer or truck, put a tight fitting cover on the snowmobile. A cover specifically de- signed for your snowmobile is best. This will help keep foreign objects out of the

1. Drive select switch 2. Drive indicator light 3. Reverse indicator light

1. Off

1

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43

cooling vents, and also help protect the snowmobile against damage from debris on the road.

If transporting the snowmobile in an open trailer or truck in areas where road salt is used, coat metal suspension surfaces lightly with oil or another protectant. This will help protect against corrosion. Be sure to clean the snowmobile when you get to your destination to remove any corrosive salts.

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44

ESU11453

Periodic inspection, adjustment, and lubrication will keep your snowmobile in the safest and most efficient condition possible. Safety is an obligation of the vehicle owner/operator. The most important points of vehicle inspection, adjustment, and lubrication are explained on the following pages.

WARNING EWS00342

Failure to properly maintain the snowmobile or performing maintenance activities incor- rectly may increase your risk of injury or death during service or while using the snow- mobile. If you are not familiar with snowmobile service, have a Yamaha dealer perform service.

WARNING EWS00701

Turn off the engine when performing maintenance unless otherwise specified. A running engine has moving parts that can catch on body parts or clothing, and elec-

trical parts that can cause shocks or fires. Running the engine while servicing can lead to eye injury, burns, fire, or carbon mon-

oxide poisoningpossibly leading to death. See page 6 for more information about carbon monoxide.

WARNING EWS00791

Brake discs, calipers, and linings can become very hot during use. To avoid possible burns, let brake components cool before touching them.

Maintenance, replacement, or repair of the emission control devices and systems may be performed by any repair establishment or individual that is certified (if applicable). Proper periodic maintenance of your snowmobile is important in order to enjoy long, pleasur- able use. Especially important are the maintenance services related to emission control. These controls not only function to ensure cleaner air, but are also vital to proper engine op- eration and maximum performance. In the following periodic maintenance charts, the services related to emission control are grouped separately. These services require specialized data, knowledge, and equipment. Yamaha dealers are trained and equipped to perform these par- ticular services.

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45

ESU11462

Periodic maintenance chart for the emission control system Items marked with an asterisk should be performed by a Yamaha dealer as they require spe- cial tools, data and technical skills.

ITEM REMARKS

INITIAL EVERY

PAGE 1 month

or 800 km (500 mi) (40 hr)

Seasonally or

4000 km (2500 mi) (200 hr)

Spark plugs Check condition. Adjust gap and clean. Replace if necessary.

52

* Valve clearance Check and adjust valve clear- ance when engine is cold.

Every 40000 km (25000 mi) 56

* Crankcase breath- er system

Check breather hose for cracks or damage.

Replace if necessary.

* Fuel line Check fuel hose for cracks or

damage. Replace if necessary.

* Idle speed Check and adjust idle speed. 53

* Fuel injection Adjust synchronization.

* Exhaust system Check for leakage. Tighten or replace gasket if

necessary.

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46

ESU11566

General maintenance and lubrication chart

ITEM REMARKS

INITIAL EVERY

PAGE 1 month

or 800 km (500 mi) (40 hr)

Seasonally or

4000 km (2500 mi) (200 hr)

Engine oil Change (warm engine before draining). 56

* Engine oil filter car- tridge Replace.

Every 20000 km (12000 mi)

56

* Cooling system Check coolant level. Bleed the cooling system if

necessary. 60

* Primary and sec- ondary clutches

Check engagement and shift speed.

Adjust if necessary.

Whenever operating ele- vation is changed.

Inspect sheaves for wear and damage.

Inspect weights/rollers and bushings for wear for primary.

Inspect ramp shoes/bushings for wear for secondary.

Replace if necessary.

Lubricate with specified grease.

* Drive chain Check chain slack. Adjust if necessary.

Initial at 500 km (300 mi) and every 800 km (500

mi) thereafter. 63

* Drive chain oil Check oil level. 63

Change. 63

* Brake and parking brake

Adjust free play and/or replace pads if necessary. 65

Change brake fluid. See TIP following this chart. 65

Control cables Make sure that operation is

smooth. Lubricate if necessary.

72

* Disc brake installa- tion

Check for slight free play. Lubricate shaft with specified

grease as required. Every 1600 km (1000 mi)

* Slide runners Check for wear and damage. Replace if necessary. 69

* Skis and ski runners Check for wear and damage. Replace if necessary. 67

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47

TIP Brake system: After disassembling the master cylinder or caliper cylinder, always change the brake fluid.

Regularly check the brake fluid level and add fluid if necessary. Replace the oil seals of the master cylinder and caliper cylinder every two years. Replace the brake hose every four years, or if cracked or damaged.

* Steering system Check toe-out. Adjust if necessary. 69

* Steering bearings

Check bearing assemblies for looseness.

Lubricate with specified grease.

* Suspension compo- nent

Lubricate with specified grease.

Check ball joints for wear and damage.

Replace if necessary.

72

* Drive track Check the deflection. Adjust if necessary.

Initial at 500 km (300 mi) and every 800 km (500

mi) thereafter. 69

Fittings and fasten- ers

Make sure that all nuts, bolts and screws are properly tight- ened.

Tighten if necessary.

74

* Battery Check condition. Charge if necessary. 74

ITEM REMARKS

INITIAL EVERY

PAGE 1 month

or 800 km (500 mi) (40 hr)

Seasonally or

4000 km (2500 mi) (200 hr)

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48

ESU13004

Tool kit The owners tool kit is located in the storage pouch. (See page 22 for more information about the storage pouch.) The service information included in this man- ual and the tools provided in the owners tool kit are intended to assist you in the perfor- mance of preventive maintenance and minor repairs. However, additional tools such as a torque wrench may be necessary to perform certain maintenance work correctly.

NOTICE ECS00782

Before starting the engine, make sure that the tool kit is securely fastened (PZ50RT / PZ50XT / PZ50MT) and that the storage pouch zipper is completely closed.

TIP If you do not have a torque wrench available during a service operation requiring one, take your snowmobile to a Yamaha dealer to check the torque settings and adjust them if necessary.

ESU14231

Recommended equipment It is good practice to carry the spare parts and other necessary equipment with you while riding the snowmobile so that minor re- pairs can be done if necessary. The following should be carried at all times: Flashlight Roll of plastic tape Steel wire Tow rope V-belt Light bulbs When you start out for a long distance trip, extra fuel should be carried as well. ESU11767

Removing and installing the shroud and covers

WARNING EWS00092

Be sure shroud and covers are secured before operation. A loose shroud or cover could move and cause loss of control.

Front cover and air filter case cover (PZ50RT / PZ50XT / PZ50MT) To remove the front cover and air filter case cover 1. Unhook the latch, and then slide the front

cover upward.

1. Storage pouch 2. Tool kit

1

1. Latch 2. Front cover

1

2

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Periodic maintenance and adjustment

49

2. Loosen the fasteners, lift up the air filter case cover slightly, and then unhook the cover from the air filter case to remove it.

To install the front cover and air filter case cover 1. Insert the projections on the end of the

air filter case cover into the slots in the air filter case, place it in the original position, and then tighten the fasteners.

2. Fit the holders on the front cover over the projections on the air filter case cover, slide the front cover downward, and then hook the latch onto the holder on the front of the snowmobile.

Shroud and air filter case cover (PZ50MP) To open the shroud and remove the air filter case cover 1. Unhook the shroud latches, and then

slowly raise the shroud forward until it stops.

2. Loosen the fasteners, lift up the air filter case cover slightly, and then unhook the cover from the air filter case to remove it.

1. Air filter case cover 2. Fastener

1. Projection on the end of the air filter case cover

2. Slot in the air filter case

1

2

1. Holder on the front cover 2. Projection on the air filter case cover

1. Shroud latch 2. Shroud

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50

To close the shroud and install the air filter case cover 1. Insert the projections on the end of the

air filter case cover into the slots in the air filter case, place it in the original position, and then tighten the fasteners.

2. Slowly lower the shroud to the original position, and then hook the shroud latch- es.

Left side cover To remove the left side cover Loosen the fasteners, and then remove the left side cover.

To install the left side cover Place the left side cover in the original posi- tion, and then tighten the fasteners.

Right side cover To remove the right side cover Loosen the quick fastener screws, and then remove the right side cover.

To install the right side cover Place the right side cover in the original posi- tion, and then tighten the quick fastener screws.

Top cover (PZ50RT / PZ50XT / PZ50MT) To remove the top cover Pull up on the rear of the top cover.

1. Air filter case cover 2. Fastener

1. Projection on the end of the air filter case cover

2. Slot in the air filter case

1. Fastener 2. Left side cover

1. Right side cover 2. Quick fastener screw

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51

To install the top cover Insert the projections on the front of the top cover into the slots in the left and right upper covers, and then fit the projections on the rear of the top cover into the grommets.

Right upper cover (PZ50RT / PZ50XT / PZ50MT) To remove the right upper cover 1. Remove the top cover. (See the above

procedure.) 2. Remove the right upper cover by remov-

ing bolts A and bolt B.

To install the right upper cover 1. Place the right upper cover in the original

position, and then install and tighten bolts A and bolt B to their specified torques.

2. Install the top cover.

Left and right upper covers (PZ50MP) To remove an upper cover 1. Open the shroud. (See the above proce-

dure.) 2. Loosen the fasteners, and then remove

the upper cover.

To install an upper cover 1. Insert the projections on the upper cover

into the slots, fit the holders on the cover onto the grommets, and then tighten the fasteners.

1. Top cover

1. Right upper cover bolt A 2. Right upper cover bolt B 3. Right upper cover

2 3

Tightening torques: Right upper cover bolt A:

8 Nm (0.8 mkgf, 5.8 ftlbf) Right upper cover bolt B:

3.0 Nm (0.30 mkgf, 2.2 ftlbf)

1. Fastener 2. Left upper cover

1. Projection 2. Holder

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Periodic maintenance and adjustment

52

2. Close the shroud.

NOTICE ECS00373

Make sure that all cables, hoses and leads are routed properly before install- ing the shroud and covers.

When installing the shroud and covers, be sure to tighten the fasteners secure- ly.

ESU11785

Checking the spark plugs The spark plugs are important engine com- ponents and are easy to inspect. The condi- tion of the spark plugs can indicate the condition of the engine. Check the coloration on the white porcelain insulator around the center electrode. The ideal coloration at this point is a medium-to- light tan color for a snowmobile that is being ridden normally. If any spark plug shows a

distinctly different color, there could be something wrong with the engine. For exam- ple, a very white center electrode porcelain color could indicate an intake track air leak or carburetion problem for that cylinder. Do not attempt to diagnose such problems yourself. Instead, take the snowmobile to a Yamaha dealer for inspection and possible repairs. You should periodically remove and inspect the spark plugs because heat and deposits will cause any spark plug to slowly break down and erode. Consult a Yamaha dealer before changing to a different type of spark plug.

WARNING EWS00711

Be sure to use the specified spark plug and spark plug cap. Otherwise, the T.O.R.S. may not work properly.

Spark plugs are produced in several different thread lengths. The thread length or reach is the distance from the spark plug gasket seat to the end of the threaded portion. If the reach is too long, overheating and engine damage may result. If the reach is too short, spark plug fouling and poor performance may result. Also, if the reach is too short, car- bon will form on the exposed threads result- ing in combustion chamber hot spots and thread damage. Always use a spark plug with the specified reach.

1. Slot

1. Grommet

Specified spark plug: Manufacturer:

NGK Model:

CR9EKB

Spark plug reach: 19.0 mm (0.75 in)

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Periodic maintenance and adjustment

53

Before installing any spark plug, measure the spark plug gap with a wire thickness gauge and adjust to specification.

When installing the spark plug, always clean the gasket surface. Wipe off any grime from the threads and tighten the spark plug to the specified torque.

NOTICE ECS00383

Make sure that the spark plug caps are se- curely installed. Otherwise the spark plug caps could be damaged due to engine vi- bration.

ESU11813

Adjusting the engine idling speed 1. Place the snowmobile on a level surface

and apply the parking brake. 2. Start the engine and warm it up. 3. Select the engine speed meter mode.

(See page 12 for details.) 4. Remove the rubber cap.

5. Insert a Phillips screwdriver into the hole, and then turn the idle adjusting screw in or out to adjust the engine idling speed.

6. Install the rubber cap. ESU13664

Adjusting the throttle lever free play (PZ50RT / PZ50XT / PZ50MT) 1. Slide the rubber cover back. 2. Loosen the locknut. 3. To increase the throttle lever free play,

turn the adjusting nut in direction (a). To decrease the throttle lever free play, turn the adjusting nut in direction (b).

1. Spark plug gap 2. Spark plug reach

Spark plug gap: 0.60.7 mm (0.0240.028 in)

Spark plug tightening torque: 13 Nm (1.3 mkgf, 9.4 ftlbf)

1 1

2

1. Rubber cap

1. Idle adjusting screw

Standard engine idling speed: 17001900 r/min

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54

4. Tighten the locknut. 5. Slide the rubber cover to its original posi-

tion. ESU11852

Checking the throttle lever free play (PZ50MP) Check the throttle lever free play.

Have a Yamaha dealer adjust the free play if necessary. ESU11864

Checking the throttle override system (T.O.R.S.)

WARNING EWS00353

When checking the T.O.R.S., take precau- tions to avoid snowmobile movement which could cause an accident: Make sure that the throttle lever moves

smoothly with the engine off before checking the T.O.R.S.

Make sure that the parking brake is ap- plied.

Do not rev the engine to the point that the clutch engages.

Check the T.O.R.S. for proper operation. 1. Start the engine.

TIP Refer to the Starting the engine section on page 35.

2. Hold the pivot point of the throttle lever away from the throttle switch by putting your thumb (above) and forefinger (be- low) between the throttle lever pivot and the engine stop switch housing. While holding the pivot point as de- scribed above, squeeze the throttle lever gradually.

1. Locknut 2. Throttle lever free play adjusting nut 3. Rubber cover 4. Throttle lever free play

Throttle lever free play: 2.03.0 mm (0.080.12 in)

Throttle lever free play: 2.03.0 mm (0.080.12 in)

(a) (b)

1 2

3

4

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55

The T.O.R.S. will be activated and the engine speed will be limited to less than the clutch engagement speed. (See page 82 for the clutch engagement speed.) WARNING! If the engine speed does not decrease to less than the clutch engagement speed, stop the engine by turning the main switch to the off position and consult a Yamaha dealer. Operating the snowmobile with a mal- functioning T.O.R.S. could result in loss of control. [EWS00363]

ESU11895

Checking the air filter Check that there is no snow under the air filter element frame after each ride. In addition, snow may need to be cleaned during a ride depending on the riding conditions.

1. Place the snowmobile on a level surface and apply the parking brake.

2. Remove the front cover (PZ50RT / PZ50XT / PZ50MT) or open the shroud (PZ50MP), and then remove the air filter case cover. (See page 48 for the proce- dures.)

3. Unhook the air filter element frame fas- teners.

4. Lift up the air filter element frame and check the air filter element. If there is any snow on the air filter element, remove the element and brush off the snow, and then install the air filter element.

5. Place the air filter element frame in the original position, and then hook the fas- teners onto the frame.

6. Install the air filter case cover, and then install the front cover (PZ50RT / PZ50XT / PZ50MT) or close the shroud (PZ50MP).

1. Throttle lever pivot 2. Engine stop switch housing 3. Throttle lever

1. Air filter element frame fastener

1

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ESU11932

High-altitude settings Operating at high altitude reduces the perfor- mance of a gasoline engine about 3% for ev- ery 305 m (1000 ft) of elevation. This is because there is less air as altitude increases. Less air means less oxygen available for combustion. Your snowmobile utilizes an electronic fuel injection system that delivers the optimal air/fuel ratio required by the engine. There- fore, the fuel injection system does not need to be adjusted, even for operation at high al- titude. Remember: Less air at higher altitude means there is less horsepower available, even with the optimal air/fuel ratio. Expect acceleration and top speed to be reduced at higher altitudes. To overcome operating with less power at high altitudes, your snowmobile may also re- quire different settings for the drive chain gears and V-belt clutch to avoid poor perfor- mance and rapid wear. If you plan to operate your snowmobile at an altitude different from the area where you bought it, be sure to con- sult a Yamaha dealer. The dealer can tell you if there are any changes necessary for the al- titude where you plan to ride. NOTICE: The drive chain gears and V-belt clutch should be adjusted when operating above a high altitude of 900 m (3000 ft). Consult a Yamaha dealer. [ECS00432]

ESU11951

Valve clearance The valve clearance changes with use, result- ing in improper air-fuel mixture and/or engine noise. To prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the intervals specified in the periodic maintenance chart.

ESU11989

Engine oil and oil filter cartridge The engine oil level should be checked before each use. In addition, the oil must be changed and the oil filter cartridge replaced at the intervals specified in the periodic main- tenance and lubrication chart.

WARNING EWS00371

Engine oil is extremely hot immediately af- ter the engine is turned off. Coming into contact with or getting any engine oil on your clothes could result in burns.

NOTICE ECS00442

Do not run the engine with too much or not enough oil in the oil tank. Oil could spray out or the engine could be dam- aged.

Be sure to change the engine oil after the first 800 km (500 mi) of operation, and every 4000 km (2500 mi) thereafter or at the start of a new season, other- wise the engine will wear quickly.

The oil filter cartridge should be re- placed after the first 800 km (500 mi) of operation, and every 20000 km (12000 mi) of operation thereafter. Have a Yamaha dealer replace the oil filter car- tridge.

To check the engine oil level 1. Place the snowmobile on a level surface

and apply the parking brake.

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57

2. Start the engine, warm it up for 1015 mi- nutes, and then turn it off.

TIP The engine can also be warmed up by driv-

ing the snowmobile for 1015 minutes. After driving the snowmobile, allow the en-

gine to idle for at least 10 seconds before turning it off.

3. Remove the right side cover (PZ50RT / PZ50XT / PZ50MT), or open the shroud and remove the right upper cover and the right side cover (PZ50MP). (See page 48 for the procedures.)

4. Disconnect the oil level gauge coupler. NOTICE: Disconnect the oil level gauge coupler before removing the oil filler cap, otherwise the cable could twist and break. [ECS00453]

5. Remove the oil filler cap, wipe the dip- stick clean, insert it back into the oil filler hole (without screwing it in), and then re- move it again to check the oil level.

TIP The engine oil should be between the H and L level marks on the dipstick.

6. If the engine oil is below the L level mark, add sufficient oil of the recom- mended type to raise it to the H level mark. (See page 82 for the recommend- ed oil.) NOTICE: When adding the en- gine oil, be careful not to fill above the H level mark on the dipstick. Use only the recommended oil. (See page 82.) Make sure that no foreign material enters the engine oil tank. [ECS00463]

1. Oil level gauge coupler 2. Oil filler cap

1. Oil filler cap 2. Dipstick

1. H level mark 2. L level mark

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7. Insert the dipstick into the oil filler hole, and then tighten the oil filler cap.

8. Connect the oil level gauge coupler. 9. Install the right side cover (PZ50RT /

PZ50XT / PZ50MT), or install the right side cover and the right upper cover, and then close the shroud (PZ50MP).

To change the engine oil 1. Place the snowmobile on a level surface

and apply the parking brake. 2. Start the engine, warm it up for several

minutes, and then turn it off. 3. Remove the right side cover (PZ50RT /

PZ50XT / PZ50MT), or open the shroud and remove the right upper cover and the right side cover (PZ50MP). (See page 48 for the procedures.)

4. Remove the bottom panel by removing the bolts.

5. Remove the right lower cover by remov- ing the bolts.

6. Place an oil pan under the oil tank to col- lect the used oil.

7. Disconnect the oil level gauge coupler.

8. Remove the oil filler cap, and then re- move the engine oil drain bolt and its gasket to drain the oil from the oil tank.

1. Bottom panel 2. Bolt

2

1. Right lower cover 2. Bolt

1. Oil level gauge coupler 2. Oil filler cap

1. Engine oil drain bolt (oil tank) 2. Gasket

2

1

1

2

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9. Place an oil pan under the engine to col- lect the used oil.

10. Remove the engine oil drain bolt and its gasket to drain the oil from the crank- case.

TIP Dispose of used oil according to local regula- tions.

11. Install the engine oil drain bolts and their new gasket, and then tighten the bolts to the specified torques.

12. Add 1.5 L (1.59 US qt, 1.32 Imp.qt) of the recommended engine oil to the oil tank, and then install and tighten the oil filler cap.

13. Start the engine, warm it up for several minutes, and then turn it off.

14. Remove the oil filler cap, and then add sufficient oil of the recommended type to raise it to the H level mark on the dip- stick. NOTICE: When adding the en- gine oil, be careful not to fill above the H level mark on the dipstick. Use only the recommended oil. (See page

82.) Make sure that no foreign material enters the engine oil tank. [ECS00463]

15. Install and tighten the oil filler cap. 16. Start the engine, and then let it idle for

several minutes while checking it for oil leakage. If oil is leaking, immediately turn the engine off and make sure that the en- gine oil drain bolt, the oil tank drain bolt, and the oil filler cap are installed correct- ly.

17. Turn the engine off, and then connect the oil level gauge coupler.

18. Install the right lower cover by installing the bolts.

19. Install the bottom panel by installing the bolts.

20. Install the right side cover (PZ50RT / PZ50XT / PZ50MT), or install the right side cover and the right upper cover, and then close the shroud (PZ50MP). NOTICE: If oil is leaking or the oil level

1. Engine oil drain bolt (crankcase) 2. Gasket

Tightening torques: Engine oil drain bolt (crankcase):

30 Nm (3.0 mkgf, 22 ftlbf) Engine oil drain bolt (oil tank):

16 Nm (1.6 mkgf, 12 ftlbf)

1

2

1. H level mark 2. L level mark

Recommended engine oil: See page 82.

Oil quantity: With oil filter cartridge replacement:

2.6 L (2.78 US qt, 2.31 Imp.qt) Without oil filter cartridge replace- ment:

2.4 L (2.59 US qt, 2.16 Imp.qt) Total amount:

3.0 L (3.17 US qt, 2.64 Imp.qt)

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warning indicator comes on when the engine is running, immediately turn the engine off and have a Yamaha dealer check the snowmobile. Con- tinuing to operate the engine under such conditions could cause severe engine damage. [ECS00472]

ESU12048

Cooling system The coolant level should be checked before each ride. In addition, the cooling system must be bled at the intervals specified in the periodic maintenance and lubrication chart.

WARNING EWS00381

Do not remove the coolant reservoir cap when the engine is hot. Scalding hot fluid and steam may be blown out under pres- sure, which could cause serious injury. When the engine has cooled, place a thick rag or towel over the coolant reservoir cap, and slowly rotate the cap counter- clockwise to the detent. This procedure allows any residual pressure to escape. When the hissing sound has stopped, press down on the cap while turning coun- terclockwise and remove it.

To check the coolant level 1. Place the snowmobile on a level surface

and apply the parking brake.

2. Remove the top cover (PZ50RT / PZ50XT / PZ50MT) or open the shroud (PZ50MP), and then remove the right up- per cover. (See page 48 for the proce- dures.)

3. Check the coolant level in the coolant reservoir when the engine is cold. If the coolant level is below the COLD LEVEL mark, add coolant until it reaches the COLD LEVEL mark. (See the following section Replenishing the coolant for more details.) NOTICE: If coolant is not available, use distilled water or soft tap water instead. Do not use hard water or salt water since it is harmful to the engine. If water has been used instead of coolant, replace it with coolant as soon as possible, other- wise the cooling system will not be protected against frost and corrosion. If water has been added to the cool- ant, have a Yamaha dealer check the antifreeze content of the coolant as soon as possible, otherwise the effec- tiveness of the coolant will be re- duced. [ECS00493]

4. Install the right upper cover, and then in- stall the top cover (PZ50RT / PZ50XT / PZ50MT) or close the shroud (PZ50MP).

1. Coolant reservoir cap

1

1. COLD LEVEL mark

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Bleeding the cooling system The cooling system must be bled if the cool- ant reservoir becomes empty, if air can be seen in the cooling system, or if there is a cooling system leak. Consult a Yamaha deal- er.

NOTICE ECS00501

Operating the engine with an improperly bled cooling system can cause overheat- ing and severe engine damage.

Replenishing the coolant 1. Place the snowmobile on a level surface

and apply the parking brake. 2. Remove the top cover (PZ50RT /

PZ50XT / PZ50MT) or open the shroud (PZ50MP), and then remove the right up- per cover. (See page 48 for the proce- dures.)

3. Remove the coolant reservoir cap, add the recommended coolant until it reach- es the COLD LEVEL mark, and then in- stall the cap. 4. Start the engine, allow it to idle for sever-

al minutes, and then turn it off. 5. Check for any coolant leakage. If coolant

is leaking, check for the cause.

TIP If you find any leaks, consult a Yamaha deal- er.

6. Fill the coolant reservoir with coolant un- til it reaches the COLD LEVEL mark.

7. Install the right upper cover, and then in- stall the top cover (PZ50RT / PZ50XT / PZ50MT) or close the shroud (PZ50MP).

1. COLD LEVEL mark 2. Coolant reservoir cap

Recommended antifreeze: High-quality ethylene glycol anti- freeze containing corrosion inhibitors

Antifreeze and water mixing ratio: 3:2

Total amount: PZ50MP 3.70 L (3.91 US qt, 3.26 Imp.qt) PZ50MT 3.60 L (3.81 US qt, 3.17 Imp.qt) PZ50RT 3.60 L (3.81 US qt, 3.17 Imp.qt) PZ50XT 3.60 L (3.81 US qt, 3.17 Imp.qt)

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ESU12086

V-belt

WARNING EWS00403

Coming in contact with the rotating V- belt or clutch parts can cause severe in- jury or death. Never run the engine with the drive guard removed.

Make sure that the drive guard is in- stalled securely before operating the snowmobile to protect against severe injury or death from a broken V-belt or other part should it come off the snow- mobile while it is in operation.

NOTICE ECS00831

Never run the engine with the V-belt re- moved. Clutch components can be dam- aged.

The V-belt should be checked before each ride.

To check the V-belt 1. Remove the left side cover (PZ50RT /

PZ50XT / PZ50MT), or open the shroud and remove the left upper cover and the left side cover (PZ50MP). (See page 48 for the procedures.)

2. Remove the drive guard. 3. Check the V-belt for wear and damage.

Replace if necessary.

4. Install the drive guard. 5. Install the left side cover (PZ50RT /

PZ50XT / PZ50MT), or install the left side cover and the left upper cover, and then close the shroud (PZ50MP).

To replace the V-belt

WARNING EWS00412

When installing a new V-belt, make sure that it is positioned properly. Otherwise, the V-belt clutch engagement speed will be changed and the snowmobile may move unexpectedly when the engine is started, which could cause an accident.

NOTICE ECS00521

To ensure proper clutch performance as the V-belt wears, it is necessary to adjust the gap between the secondary fixed sheave and the secondary sliding sheave by changing the positions of the spacers. Have a Yamaha dealer make this adjust- ment.

1. Place the snowmobile on a level surface and apply the parking brake.

2. Remove the left side cover (PZ50RT / PZ50XT / PZ50MT), or open the shroud and remove the left upper cover and the left side cover (PZ50MP). (See page 48 for the procedures.)

3. Remove the drive guard. 4. Rotate the secondary sliding sheave

clockwise and push it so that it separates from the secondary fixed sheave.

1. V-belt wear limit

New V-belt width: 34.5 mm (1.36 in)

V-belt wear limit width: 32.5 mm (1.28 in)

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63

5. Pull the V-belt up over the secondary fixed sheave.

6. Remove the V-belt from the secondary sheave assembly and primary sheave assembly.

7. Install the new V-belt over the primary sheave assembly.

8. Rotate the secondary sliding sheave clockwise and push it so that it separates from the secondary fixed sheave.

9. Install the V-belt between the secondary fixed sheave and the secondary sliding sheave.

10. Install the drive guard. 11. Install the left side cover (PZ50RT /

PZ50XT / PZ50MT), or install the left side cover and the left upper cover, and then close the shroud (PZ50MP).

ESU12127

Drive chain housing

To check the drive chain housing oil level 1. Place the snowmobile on a level surface

and apply the parking brake. 2. Remove the right side cover. (See page

48 for removal procedures.) 3. Remove the dipstick, wipe it off with a

clean rag, and then insert it back into the filler hole.

1. Secondary sliding sheave 2. Secondary fixed sheave

1. V-belt

1. Secondary sliding sheave 2. Secondary fixed sheave

1. V-belt

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64

4. Remove the dipstick and check that the oil level is within the range shown at the bottom of the dipstick. If the oil does not reach the bottom of the dipstick, add sufficient oil of the recommended type to raise it to the correct level. NOTICE: Make sure that no foreign material en- ters the drive chain housing. [ECS00532]

5. Install the dipstick, making sure to align the notch in the dipstick handle with the projection on the drive chain housing.

6. Install the right side cover. 7. Release the parking brake. 8. Drive the snowmobile for several minutes

at more than 20 km/h (12 mi/h), and then repeat steps 17 to check the oil level again.

To adjust the chain tension 1. Remove the right side cover. (See page

48 for removal procedures.) 2. Loosen the locknut. 3. Turn the chain tension adjusting bolt

clockwise until it is finger tight, and then loosen it 1/4 turn.

1. Dipstick

1. Oil level range

Recommended drive chain oil: SAE 75W or 80W API GL-3 Gear oil

1

1. Notch 2. Projection

1. Locknut 2. Chain tension adjusting bolt

1

2

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65

4. While holding the chain tension adjusting bolt with a wrench, tighten the locknut to the specified torque.

5. Install the right side cover. ESU13433

Brake and parking brake

WARNING EWS00441

A soft, spongy feeling in the brake lever indicates a failure in the brake system.

Do not operate the snowmobile if you find any problems in the brake system. You could lose braking ability, which could lead to an accident. Ask a Yamaha dealer to inspect and repair the brake system.

NOTICE ECS00061

Make sure that the brake lever end does not project out over the handlebar end. This will help prevent brake lever damage when the snowmobile is placed on its side for service.

Test the brake at a low speed when starting out to make sure that it is working properly. If the brake does not provide proper braking performance, inspect the brake for wear or brake fluid leakage. (See the following sec- tion for more details.)

Checking the brake pads Check the brake pads for wear according to the following procedure. 1. Place the snowmobile on a level surface

and apply the parking brake. 2. Remove the right side cover. (See page

48 for removal procedures.)

3. Check the brake pads for wear. If the brake pads reach the wear limit, ask a Yamaha dealer to replace them.

4. Install the right side cover.

Checking the parking brake pads Check the parking brake pads for wear ac- cording to the following procedure. 1. Remove the right side cover. (See page

48 for removal procedures.) 2. Check the parking brake pads for wear

by measuring the thickness of the pads. If the parking brake pads reach the wear limit, ask a Yamaha dealer to replace them.

Tightening torque: Locknut:

25 Nm (2.5 mkgf, 18 ftlbf)

1. Brake pad wear limit

Brake pad wear limit: 4.7 mm (0.19 in)

1. Parking brake pad wear limit

Parking brake pad wear limit: 1.2 mm (0.047 in)

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66

3. Install the right side cover.

To adjust the parking brake As the parking brake pads wear, adjustment may be necessary to ensure proper brake performance. 1. Remove the right side cover. (See page

48 for removal procedures.) 2. Loosen the parking brake pad adjusting

bolt locknut and the parking brake pad adjusting bolt.

3. Loosen the parking brake cable locknut. 4. Turn the parking brake cable adjusting

bolt in or out to adjust the cable length.

5. Tighten the parking brake cable locknut. 6. Turn the parking brake pad adjusting bolt

in or out to adjust the clearance between the parking brake pads and the brake disc.

7. Tighten the parking brake pad adjusting bolt locknut.

8. Install the right side cover.

Checking the brake fluid level Before riding, check that the brake fluid is above the lower level. Check the brake fluid level with the top of the reservoir level. Re- plenish the brake fluid if necessary.

1. Parking brake pad adjusting bolt locknut 2. Parking brake pad adjusting bolt 3. Parking brake cable locknut 4. Parking brake cable adjusting bolt 5. Parking brake cable length

Parking brake cable length: 43.546.5 mm (1.7131.831 in)

1. Parking brake pad 2. Brake disc 3. Parking brake pad adjusting bolt 4. Parking brake pad adjusting bolt locknut

Parking brake pad to brake disc clear- ance (a) + (b):

1.52.0 mm (0.0590.079 in)

1. Lower level

Specified brake fluid: DOT 4

4 3

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67

WARNING EWS00821

Improper maintenance can result in loss of braking ability. Observe these precau- tions: Insufficient brake fluid may allow air to

enter the brake system, reducing brak- ing performance.

Clean the filler cap before removing. Use only DOT 4 brake fluid from a sealed container.

Use only the specified brake fluid; other- wise, the rubber seals may deteriorate, causing leakage.

Refill with the same type of brake fluid. Adding a brake fluid other than DOT 4 may result in a harmful chemical reac- tion.

Be careful that water does not enter the brake fluid reservoir when refilling. Wa- ter will significantly lower the boiling point of the fluid and may result in vapor lock.

NOTICE ECS01051

Brake fluid may damage painted surfaces or plastic parts. Always clean up spilled fluid immediately.

As the brake pads wear, it is normal for the brake fluid level to gradually go down. A low brake fluid level may indicate worn brake pads and/or brake system leakage; therefore, be sure to check the brake pads for wear and the brake system for leakage. If the brake flu- id level goes down suddenly, have a Yamaha dealer check the cause before further riding.

Changing the brake fluid

WARNING EWS00472

Make sure that the brake fluid and the fol- lowing parts are replaced by a Yamaha dealer.

Brake fluid replacement is necessary when the following components are replaced dur- ing the periodic maintenance or if they are damaged or leaking. All oil seals of the master cylinder and cali-

per cylinder The brake hose ESU14511

Skis and ski runners

Checking the skis and ski runners Check the skis and ski runners for wear and damage. Replace if necessary.

NOTICE ECS00561

Avoid scratching the skis when loading and unloading the snowmobile, when rid- ing in areas with little or no snow, or on sharp edges such as concrete, curbs, etc. This will wear or damage the skis.

PZ50MT

1. Ski runner wear limit

1

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PZ50RT / PZ50XT / PZ50MP

Aligning the skis 1. Turn the handlebar so the skis face

straight ahead. 2. Check the following for ski alignment:

Skis are facing forward. Ski toe-out (distance A distance B) is

within specification.

1. Ski wear limit 2. Ski runner

Ski runner wear limit: 6.0 mm (0.24 in)

Ski wear limit: 24.0 mm (0.94 in)

1. Ski runner wear limit

1

2

1 1

1. Ski wear limit (front) 2. Ski runner 3. Ski wear limit (rear)

Ski runner wear limit: 6.0 mm (0.24 in)

Ski wear limit (front): 13.0 mm (0.51 in)

Ski wear limit (rear): 8.0 mm (0.31 in)

1. Distance A 2. Distance B

1 3

2 2

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69

TIP Move the front tip of each ski fully inward be- fore measuring or aligning.

3. If the alignment is not correct, consult a Yamaha dealer.

ESU12153

Steering system Check the handlebar for excessive free play.

To check the handlebar 1. Push the handlebar up and down and

back and forth. 2. Turn the handlebar slightly to the right

and left.

If excessive free play is felt, consult a Yamaha dealer. ESU12177

Drive track and slide runners

Drive track

WARNING EWS00482

A broken track, track fittings or debris thrown by the drive track could be danger- ous to an operator or bystanders. Observe the following precautions: Do not allow anyone to stand behind the

snowmobile when the engine is running.

When the rear of the snowmobile is raised to allow the drive track to spin, a suitable stand must be used to support the rear of the snowmobile. Never allow anyone to hold the rear of the snowmo- bile off the ground to allow the drive track to spin. Never allow anyone near a rotating drive track.

Inspect the drive track condition fre- quently. Replace any damaged slide metal. Replace the drive track if it is damaged to the depth where fabric rein- forcement material is visible or support rods are broken. Otherwise, track dam- age or failure could result in loss of braking ability and snowmobile control, which could cause an accident.

Checking the drive track

WARNING EWS00491

Do not operate the snowmobile if you find damage to the drive track, or if it has been maladjusted. Drive track damage or failure could result in loss of braking ability and snowmobile control, which could cause an accident.

Check the drive track alignment and deflec- tion, and check the track for wear and dam- age. Adjust or replace if necessary. (See the fol- lowing section for more details.)

Ski toe-out (distance A distance B): 0.015.0 mm (0.000.59 in)

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70

Checking the drive track alignment 1. Lift the rear of the snowmobile onto a

suitable stand to raise the drive track off the ground.

2. Start the engine and rotate the drive track one or two turns. Stop the engine.

3. Check the drive track alignment with the slide runners. If the alignment is incor- rect, adjust the drive track.

Measuring the drive track deflection 1. Lay the snowmobile on its side. 2. Measure the drive track deflection with a

spring scale. Pull at the center of the drive track with a force of 100 N (10 kgf, 22 lbf).

TIP Measure the gap between the slide runner and the edge of the track window on both sides.

3. If the deflection is incorrect, adjust the drive track.

Adjusting the drive track alignment and de- flection 1. Loosen the rear axle nut.

2. Lift the rear of the snowmobile onto a suitable stand to raise the drive track off the ground.

3. Start the engine and rotate the drive track one or two turns. Stop the engine.

4. Align the drive track by turning the left and right adjusting nuts.

1. Slide runner

1. Spring scale

1

1. Drive track deflection 2. Slide runner

Standard drive track deflection: 30.035.0 mm (1.181.38 in)

1. Rear axle nut

2

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71

Shifted to right

Shifted to left

5. Adjust the drive track deflection to spec- ification. NOTICE: The right and left ad- justing nuts should be turned an equal amount. [ECS00593]

6. Recheck alignment and deflection. If necessary, repeat steps 3 to 5 until the proper adjustment is achieved.

7. Lower the snowmobile to the ground. 8. Tighten the rear axle nut.

Slide runners Check the slide runners for wear and dam- age. If the slide runners reach the wear limit, they should be replaced.

Drive track alignment

Shifted to right Shifted to left

Left adjusting nut Turn out Turn in

Right adjust- ing nut Turn in Turn out

1. Left adjusting nut 2. Right adjusting nut

1. Forward 2. Gap 3. Slide runner 4. Drive track 5. Slide metal

1. Forward 2. Gap 3. Slide runner 4. Drive track 5. Slide metal

Drive track deflection

More than specified

Less than specified

Left adjusting nut Turn in Turn out

Right adjust- ing nut Turn in Turn out

Rear axle nut tightening torque: 75 Nm (7.5 mkgf, 54 ftlbf)

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72

NOTICE ECS00351

Ride on fresh snow frequently. Operating on ice or hard-packed snow will rapidly wear the slide runners.

ESU12183

High-profile pattern drive track

(PZ50XT / PZ50MT) This snowmobile is originally equipped with a high-profile pattern drive track with a lug height of 38 mm (1.5 in.) or more specifically for use in deep snow riding conditions. Therefore, avoid prolonged operation on hard surfaces such as ice, hard-packed snow, dirt, etc., to extend the life of the track and slide runners.

NOTICE ECS00611

Only use in deep snow riding conditions. Operation on areas with light snowfall,

ice, hard-packed snow, dirt, or grass will result in rapid wear or damage to the track and slide runners from lack of snow which serves as a lubricant.

ESU12199

Lubrication Lubricate the following points with the speci- fied grease.

WARNING EWS00512

Do not grease the throttle cable because it could become frozen, which could cause loss of control. Apply a dab of grease onto the cable end only.

TIP For parts equipped with a grease nipple, use a grease gun.

1. Slide runner 2. Wear limit height

Slide runner wear limit height: 10.5 mm (0.41 in)

Lubricants: Brake lever:

Silicone grease Other lubrication points:

Low-temperature grease

1. Lubrication point

1

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73

PZ50RT / PZ50XT / PZ50MT

PZ50MP

ESU12243

Replacing a headlight bulb 1. Remove the top cover (PZ50RT /

PZ50XT / PZ50MT) or open the shroud (PZ50MP). (See page 48 for removal pro- cedures.)

2. Disconnect the headlight coupler.

3. Remove the bulb holder cover.

PZ50RT / PZ50XT / PZ50MT

PZ50MP

4. Unhook the bulb holder, and then re- move the burnt-out bulb.

1. Throttle cable end

1. Grease nipple

1. Grease nipple

1

1. Headlight coupler 2. Bulb holder cover

1. Headlight coupler 2. Bulb holder cover

1. Bulb holder

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74

5. Install a new bulb, and then hook the bulb holder onto the headlight unit. NOTICE: Keep oil and your hands away from the glass part of the bulb or its life and illumination will be affect- ed. If the glass is oil stained, thorough- ly clean it with a cloth moistened with alcohol or lacquer thinner. [ECS00622]

6. Install the bulb holder cover, and then connect the headlight coupler.

7. Install the top cover (PZ50RT / PZ50XT / PZ50MT) or close the shroud (PZ50MP).

ESU12281

Adjusting the headlight beams Turn the headlight beam adjusting screws in or out to adjust the headlight beams. The headlight beams move as follows depending on the turning direction of the headlight beam adjusting screws. Direction (a): Down and to the left Direction (b): Up and to the right Direction (c): Down and to the right Direction (d): Up and to the left

ESU12291

Fittings and fasteners Check the tightness of the fittings and fasten- ers. Tighten in proper sequence and torque if necessary. ESU13891

Battery The battery is located behind the right side cover. (See page 48 for right side cover re- moval procedures.) This model is equipped with a VRLA (Valve Regulated Lead Acid) battery. There is no need to check the electrolyte or to add dis- tilled water. However, the battery lead con- nections need to be checked and, if necessary, tightened.

WARNING EWS00541

Battery electrolyte is poisonous and dan- gerous. It contains sulfuric acid and can cause severe burns. Avoid contact with skin, eyes, or clothing. ANTIDOTE: EXTERNAL: Flush with water. INTERNAL: Drink large quantities of wa-

ter or milk. Follow with milk of magne- sia, beaten egg, or vegetable oil. Call physician immediately.

EYES: Flush with water for 15 minutes and get prompt medical attention.

1. Do not touch the glass part of the bulb.

Bulb type: Halogen bulb

1

1. Headlight beam adjusting screw

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75

Batteries produce explosive gases. Keep sparks, flame, cigarettes, etc. away. Venti- late when charging or using in an enclosed space. Always shield your eyes when working near batteries. KEEP OUT OF THE REACH OF CHILDREN.

Charge or have a Yamaha dealer charge the battery as soon as possible if it seems to have discharged. Keep in mind that the bat- tery tends to discharge more quickly if the snowmobile is equipped with electrical ac- cessories.

WARNING EWS00611

Never smoke around the battery while it is being charged. Sparks may ignite the hydrogen gas created by the battery.

Disconnect the negative lead first, then the positive lead from the battery.

Connect the positive lead first, then the negative lead to the battery when install- ing the battery.

Never connect the battery to or discon- nect it from the snowmobile while it is being charged. Sparks may ignite the hydrogen gas created by the battery.

Make sure that the battery terminals are tight.

NOTICE ECS00844

To charge a VRLA (Valve Regulated Lead Acid) battery, a special (constant- voltage) battery charger is required. Us- ing a conventional battery charger will damage the battery.

Do not charge the battery quickly.

ESU12355

Replacing a fuse

WARNING EWS00551

Be sure to use the specified fuse. A wrong fuse could cause electrical system dam- age or A FIRE HAZARD.

NOTICE ECS00632

Be sure to turn the main switch to the off position and disconnect the negative bat- tery lead to prevent accidental short-cir- cuiting.

1. Remove the right side cover. (See page 48 for removal procedures.)

2. Disconnect the negative battery lead by removing the bolt.

3. Replace the blown fuse with one of the proper amperage.

1. Negative battery lead 2. Bolt

1

2

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Periodic maintenance and adjustment

76

4. Connect the negative battery lead by in- stalling the bolt.

5. Install the right side cover.

TIP If the fuse immediately blows again, ask a Yamaha dealer to inspect the snowmobile.

1. Main fuse 2. Spare fuse 3. Fuel injection system fuse

1. HEAD (headlight) fuse 2. SIG (signaling system) fuse 3. DC TERM (auxiliary DC jack) fuse 4. IGN (ignition) fuse 5. FAN (radiator fan) fuse 6. GEAR (electric shift reverse system) fuse 7. Spare fuse

Specified fuses: Main fuse:

40.0 A Fuel injection system fuse:

10.0 A Headlight fuse:

20.0 A Signaling system fuse:

7.5 A Auxiliary DC jack fuse:

3.0 A Ignition fuse:

20.0 A Radiator fan fuse:

15.0 A Electric shift reverse system fuse:

4.0 A Spare fuses:

20.0 A, 15.0 A, 10.0 A, 7.5 A, 4.0 A, 3.0 A

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Troubleshooting

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ESU12398

Engine turns over but does not start 1. Fuel system

No fuel supplied to combustion cham- ber No fuel in tank:

Supply fuel.

Clogged fuel line: Clean fuel line.

Clogged injector: Ask a Yamaha dealer to check.

Fuel supplied to combustion chamber Flooded engine:

Crank engine or wipe spark plugs dry.

2. Electrical system Poor spark or no spark

Spark plugs are dirty with carbon or are wet: Remove carbon or wipe spark plugs dry. Replace if necessary.

Faulty ignition system: Ask a Yamaha dealer to check.

T.O.R.S. malfunction: Disconnect throttle switch connec- tors and connect wire harness con- nectors together to bypass T.O.R.S. WARNING! Before bypassing the T.O.R.S., make sure that the throt- tle returns properly to the fully closed position. The T.O.R.S. is an important safety device; in the case of a malfunction, take the snowmobile to a Yamaha dealer immediately for repair. [EWS00562]

3. Compression Insufficient

Loose cylinder head nuts: Tighten nuts properly.

Worn or damaged gasket: Replace gasket.

Worn or damaged piston and cylin- der: Ask a Yamaha dealer to check.

Discharged battery If the battery is discharged, the engine can be started using a fully-charged 12-volt battery and jumper cables.

WARNING EWS00581

Connect the jumper cables only to the battery terminals. Do not connect them to the frame or any wire or other lead.

1. Throttle switch connector

1

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78

When connecting the jumper cables, do not contact the jumper cables to each other or to the frame or any metal part of the snowmobile. This can cause electri- cal system damage or A FIRE HAZARD.

1. Apply the parking brake and turn the key to the off position.

2. Remove the right side cover. (See page 48 for removal procedures.)

3. Connect the red (+) jumper cable to the positive (+) terminal of the discharged battery.

4. Connect the other end of the red (+) jumper cable to the positive (+) terminal of the booster battery.

5. Connect the black () jumper cable to the negative () terminal of the booster bat- tery.

6. Connect the other end of the black () jumper cable to the negative () terminal of the discharged battery. NOTICE: Do not reverse the connections! Make sure that all connections are secure and correct before attempting to start the engine. Any wrong connection could damage the electrical system. [ECS00672]

7. Start the engine. 8. Disconnect the black () jumper cable

from the negative () terminal of the dis- charged battery.

9. Disconnect the black () jumper cable from the negative () terminal of the bat- tery used to jump-start the engine.

10. Disconnect the red (+) jumper cable from the positive (+) terminal of the battery used to jump-start the engine.

11. Disconnect the red (+) jumper cable from the positive (+) terminal of the discharged battery.

12. Install the right side cover.

Electric starter does not operate or operates slowly Engine stop switch is pushed in: Pull it out. Faulty wire connections: Check connec-

tions or ask a Yamaha dealer to check. Discharged battery: Charge battery or see

Discharged battery above.

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Seized engine: Seizure is caused by poor lubrication, inadequate fuel, or an air leak. Ask a Yamaha dealer to check.

Engine power is low Low coolant temperature indicator light is

flashing: Warm engine up. Faulty spark plugs: Clean or replace spark

plugs. Improper fuel flow: See Fuel system

above. Incorrect V-belt clutch settings for altitude

or conditions: Ask a Yamaha dealer to check.

Engine constantly backfires or mis- fires Faulty spark plugs: Replace spark plugs. Clogged fuel system: See Fuel system

above. Malfunctioning T.O.R.S.: See Electrical

system above.

Engine overheats Insufficient coolant: Add coolant. Air in cooling system: Bleed cooling system

or ask a Yamaha dealer to check. Leaking coolant: Ask a Yamaha dealer to

check.

Snowmobile does not move Malfunctioning V-belt clutch: Ask a

Yamaha dealer to check. Drive track does not move: Foreign object

is caught in drive track, or slide runners have melted to slide metal due to lack of lu- brication.

Tight, loose, or broken drive chain: Ask a Yamaha dealer to check.

V-belt twists Improper V-belt: Replace with correct V-

belt. Incorrect V-belt clutch offset: Ask a

Yamaha dealer to check.

Loose or broken engine mount(s): Ask a Yamaha dealer to check.

V-belt slips or becomes extremely hot Oily or dirty V-belt or primary and second-

ary sheave assembly surfaces: Clean. Problem with driveline: See V-belt twists

above.

Engine does not upshift or downshift properly or engages harshly Worn or damaged V-belt: Replace V-belt or

ask a Yamaha dealer to check. Incorrect V-belt clutch settings for altitude

or conditions: Ask a Yamaha dealer to check.

Worn or sticking primary sheave assembly: Ask a Yamaha dealer to check.

Worn or sticking secondary sheave assem- bly: Ask a Yamaha dealer to check.

Noise or excessive vibration in drive chain and sprockets Broken V-belt clutch components: Ask a

Yamaha dealer to check. Worn or damaged bearings: Ask a Yamaha

dealer to check. Worn or damaged V-belt with flat spots:

Replace. Worn or damaged idler wheels or shafts:

Ask a Yamaha dealer to check. Worn or damaged drive track: Ask a

Yamaha dealer to check.

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Storage

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ESU12434

Long-term storage requires some preventive procedures to guard against deterioration.

Cleaning Thoroughly clean the snowmobile, inside and out, to remove the corrosive salts and acids that can accumulate. Use Yamaha Mud, Grease, and Engine Cleaner, or an equivalent product, to loosen mud, grease, and grime. Wash with mild soap, then rinse and dry completely.

NOTICE ECS00871

Improper cleaning can damage plastic parts such as shroud, covers, wind- shields, headlight lenses, meter lenses, etc. Use only a soft, clean cloth or sponge with mild detergent and water to clean plastic.

Do not use any harsh chemical products on plastic parts. Be sure to avoid using cloths or sponges which have been in contact with strong or abrasive cleaning products, solvent or thinner, fuel (gaso- line), rust removers or inhibitors, brake fluid, antifreeze or electrolyte.

Do not use high-pressure washers or steam-jet cleaners since they cause wa- ter seepage and deterioration in the fol- lowing areas: seals (of the slide rail suspension, front suspension and brakes), electric components (couplers, connectors, instruments, switches and lights), breather hoses and vents.

For snowmobiles equipped with a wind- shield: Do not use strong cleaners or hard sponges as they will cause dulling or scratching. Some cleaning com- pounds for plastic may leave scratches on the windshield. Test the product on a small hidden part of the windshield to

make sure that it does not leave any marks. If the windshield is scratched, use a quality plastic polishing com- pound after washing.

Lubrication Lubricate moving parts, suspension linkage, and pivot points. Use the grease or lubricant specified in the MAINTENANCE section, or Yamaha Lube-Zall general-purpose lubri- cant. Proper lubrication fights corrosion while it reduces friction.

Fuel system Add Yamaha Fuel Stabilizer and Conditioner, or an equivalent stabilizer, to the fuel tank to help prevent fuel oxidation and gum and var- nish deposits, and to inhibit corrosion in the fuel system and injectors. In areas where ox- ygenated fuel (gasohol) is used, consult a Yamaha dealer.

Engine Proper storage of the engine is essential to prevent costly rust and corrosion damage to internal engine components. This is more im- portant in areas where oxygenated fuel (gas- ohol) is used, because the alcohol content in the fuel increases the chance for water to en- ter the engine. Use Yamaha Stor-Rite Engine Fogging Oil, or an equivalent fogging oil, to protect both the combustion chamber and crankshaft from corrosion. An alternate method is to remove the intake silencer and squirt oil into the throttle bodies while the en- gine is running. NOTICE: Do not simply start the engine when in storage, starting the engine occasionally during the storage period can cause more harm than good. Moisture and acids form during combus- tion which can actually increase the chan- ce for corrosion damage during the storage period. [ECS00682]

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81

Surface protection Apply a coat of wax to painted surfaces. Ap- ply suitable protectants to the exterior of the engine, drive track, and to other metal, plas- tic, and rubber parts.

Battery Remove the battery from the snowmobile. Store it in a cool, dry place that is above 0 C (32 F), but less than 30 C (90 F). Check the condition of the battery once a month, and charge it as necessary. NOTICE: Always keep the battery charged. Storing a dis- charged battery can cause permanent battery damage. [ECS00692]

Drive track Loosen the drive track and block up the chassis so that the track is suspended above the ground.

V-belt Remove the V-belt and store separately.

Storage Store the snowmobile in a dry, well-ventilated place out of direct sunlight. Put a fabric cover over the snowmobile, preferably one that is designed for it. Do not use a plastic or vinyl covercondensation could be trapped un- derneath which could increase the chances of rusting.

Returning to service after storage When returning your snowmobile to service, install the V-belt and battery and adjust the drive track. Remove the spark plugs and clean or replace them if necessary. Perform all other pre-oper- ation and seasonal maintenance checks list- ed in the periodic maintenance chart.

TIP Before installing the battery, have a Yamaha dealer inspect and fully charge it.

For peak performance, it is recommended that you have your snowmobile checked and tuned by a Yamaha dealer. The dealer has the experience and training to help you get the maximum performance and use out of your Yamaha snowmobile.

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Specifications

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ESU1246F

Dimensions: Overall length:

PZ50MP 3155 mm (124.2 in) PZ50MT 3195 mm (125.8 in) PZ50RT 2830 mm (111.4 in) PZ50XT 3205 mm (126.2 in)

Overall width: PZ50MP 1215 mm (47.8 in) PZ50MT 1165 mm (45.9 in) PZ50RT 1215 mm (47.8 in) PZ50XT 1215 mm (47.8 in)

Overall height: PZ50MP 1380 mm (54.3 in) PZ50MT 1190 mm (46.9 in) PZ50RT 1340 mm (52.8 in) PZ50XT 1190 mm (46.9 in)

Weight: With oil and fuel:

PZ50MP 304.0 kg (670 lb) PZ50MT 263.0 kg (580 lb) PZ50RT 251.0 kg (553 lb) PZ50XT 263.0 kg (580 lb)

Ski stance: PZ50MP 980 mm (38.6 in) PZ50MT 980 mm (38.6 in) PZ50RT 1080 mm (42.5 in) PZ50XT 1080 mm (42.5 in)

Engine: Type:

Liquid cooled 4-stroke, 10 valves Cylinder arrangement:

Inline 2-cylinder Displacement:

499 cm Bore stroke:

77.0 53.6 mm (3.03 2.11 in) Idling speed:

17001900 r/min Engine oil:

Recommended grade: API service SG type or higher, JASO standard MA

Recommended brand: YAMALUBE

Type: SAE 0W-30

Fuel injection: ID mark:

8GC3 10 Fuel:

Recommended fuel: PREMIUM UNLEADED GASOLINE ONLY

Minimum pump octane (R+M)/2: 91

Starting system: Electric starter

Chassis: Drive track:

Material: Molded rubber, fiberglass-rod reinforced

Type: Internal drive type

Width: PZ50MP 406 mm (16.0 in) PZ50MT 356 mm (14.0 in) PZ50RT 356 mm (14.0 in) PZ50XT 356 mm (14.0 in)

Deflection: 30.035.0 mm (1.181.38 in)

Length on ground: PZ50MP 985 mm (38.8 in) PZ50MT 1084 mm (42.7 in) PZ50RT 769 mm (30.3 in) PZ50XT 1084 mm (42.7 in)

Rear suspension: Type:

Slide rail suspension Track sprocket wheel:

Material: Polyethylene

Number of teeth: PZ50MP 9 PZ50MT 8 PZ50RT 9 PZ50XT 8

Transmission: Clutch type:

Automatic centrifugal engagement Overall reduction ratio:

PZ50MP 9.502.38 : 1 PZ50MT 9.162.29 : 1 PZ50RT 8.662.16 : 1 PZ50XT 8.202.05 : 1

Sheave distance: 267.0270.0 mm (10.5110.63 in)

Sheave offset: 14.517.5 mm (0.570.69 in)

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83

Engagement speed (Subject to change according to elevation settings.):

PZ50MP 29003300 r/min PZ50MT 41004500 r/min PZ50RT 37004100 r/min PZ50XT 37004100 r/min

Shift speed [Subject to change according to elevation settings. Usually achieved after approximately 800 m (0.5 mi) traveled.]:

1080011800 r/min Drive chain type:

Silent chain enclosed in oil bath Drive chain housing oil:

Type: SAE 75W or 80W API GL-3 Gear oil

Capacity: 0.25 L (0.26 US qt, 0.22 Imp.qt)

Reverse system: Yes

Primary reduction ratio: 3.800.95 : 1

Secondary reduction ratio: PZ50MP 45/18 (2.50) PZ50MT 41/17 (2.41) PZ50RT 41/18 (2.28) PZ50XT 41/19 (2.16)

Secondary reduction ratio [R]: PZ50MP 3.33 PZ50MT 3.22 PZ50RT 3.04 PZ50XT 2.88

Fuel tank capacity: PZ50MP 32.9 L (8.69 US gal, 7.24 Imp.gal) PZ50MT 26.7 L (7.05 US gal, 5.87 Imp.gal) PZ50RT 26.7 L (7.05 US gal, 5.87 Imp.gal) PZ50XT 26.7 L (7.05 US gal, 5.87 Imp.gal)

Engine oil quantity: With oil filter cartridge replacement:

2.6 L (2.78 US qt, 2.31 Imp.qt) Without oil filter cartridge replacement:

2.4 L (2.59 US qt, 2.16 Imp.qt) Total amount:

3.0 L (3.17 US qt, 2.64 Imp.qt) Brake:

Type: Hydraulic disc type (ventilated disc)

Operation: Handle lever, left-hand operated

Throttle: Operation:

Handle lever, right-hand operated

Electrical system: Ignition system:

TCI Spark plug:

Manufacturer: NGK

Model: CR9EKB

Gap: 0.60.7 mm (0.0240.028 in)

Battery: Model:

YTX14-BS Voltage, capacity:

12 V, 12.0 Ah Ten-hour rate amperage:

1.2 A Bulb voltage, wattage quantity:

Headlight: 12 V, 60/55 W 2

Headlight bulb type: Halogen bulb

Tail/brake light: LED

Meter lighting: LED

Warning light: LED

High beam indicator light: LED

Low coolant temperature indicator light: LED

Knock control system indicator light: LED

Drive position indicator light: LED

Reverse position indicator light: LED

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ESU12482

Identification number records Record the frame serial number, engine serial number (Primary ID), and key identification number in the spaces provided for assistance when ordering spare parts from a Yamaha dealer. Also, record and keep the ID numbers in a separate place in case the snowmobile is sto- len.

Frame serial number The frame serial number is the seventeen- digit number stamped on the frame of the snowmobile.

Engine serial number (Primary ID) The engine serial number is stamped in the location as shown.

Key identification number The key identification number is stamped in the location as shown.

1. Frame serial number

1. Engine serial number

1. Key identification number

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ESU13462

Vehicle Emission Control Infor- mation label

The Vehicle Emission Control Information la- bel is affixed at the location in the illustration. This label shows specifications related to ex- haust emissions as required by federal law, state law and Environment Canada.

1. Vehicle Emission Control Information label

1

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ESU14492

YAMAHA SNOWMOBILE LIMITED WARRANTY 2015 and Later Models

1. Operate and maintain the snowmobile as specified in the appropriate Owners Manual. It is recommended that the customer keep records to show proof of proper maintenance and off-season storage having been performed.

2. Give notice to an authorized Yamaha snowmobile dealer of any and all apparent defects within ten (10) days after discovery, and make the machine available at that time for inspection and repairs at such dealers place of business.

1. Lack of proper setup and/or pre-delivery service by an authorized Yamaha dealer.

2. Competition, racing, or non-Yamaha authorized rental use.

3. Operation on surfaces other than snow or ice. 4. Installation of parts or accessories that are not

qualitatively equivalent to genuine Yamaha parts. 5. Abnormal strain, neglect, or abuse. 6. Lack of proper maintenance. 7. Accident or collision damage. 8. Modification to original parts.

Thirty (30) months from the original purchase date

GENERAL EXCLUSIONS from this warranty shall include any failures to the machine caused by:

THE CUSTOMERS RESPONSIBILITY under this warranty shall be to:

SPECIFIC EXCLUSIONS from this warranty shall include parts replaced due to normal wear or routine maintenance including oil, spark plugs, clutch drive belts, slide runners, and tracks.

DURING THE PERIOD OF WARRANTY any authorized Yamaha snowmobile dealer, shall, free of charge, repair or replace, at Yamahas option, any part adjudged defective by Yamaha due to faulty workmanship or material from the factory. Parts used in warranty repairs will be warranted for the balance of the warranty period. All parts replaced under warranty become the property of Yamaha.

WARRANTY TRANSFER: To transfer any remaining warranty from the original purchaser to any subsequent purchaser, it is imperative that the machine be inspected and registered for warranty by an authorized Yamaha snowmobile dealer in the country of residence of the original purchaser. In order for this warranty to remain in effect, this inspection and registration must take place within ten (10) days after ownership transfer.

All new Yamaha snowmobiles purchased from an authorized Yamaha dealer in the customers country of residence (United States or Canada) and registered with Yamaha shall be warranted against defects in material and workmanship, subject to the exclusions stated herein, for the following stated period of time:

Yamaha Motor Corporation, U.S.A. and Yamaha Motor Canada Ltd. (Yamaha) hereby warrant that new Yamaha snowmobiles will be free from defects in material and workmanship for the period of time stated herein, subject to certain stated limitations.

All Models

WARRANTY PERIOD:

Yamaha also warrants to the ultimate purchaser and each subsequent purchaser of each applicable model Yamaha snowmobile covered by this warranty that the vehicle is designed, built, and equipped so as to conform at the time of sale with all U.S. emissions standards applicable at the time of manufacture and that it is free from defects in materials and workmanship which would cause it not to meet these standards within the period listed immediately below. Failures other than those resulting from defects in material or workmanship which arise solely as a result of owner abuse and/or lack of proper maintenance are not covered by this warranty.

EMISSION CONTROL SYSTEM WARRANTY (U.S.A. ONLY)

All Yamaha snowmobiles shall be warranted for a term of one (1) year from the date of purchase, plus a special early-season extension (if applicable).

All Yamaha snowmobile batteries are warranted for thirty (30) days from the date of vehicle purchase.

All Yamaha snowmobile clutch components are warranted against normal wear for a period of three (3) months, or 1250 miles (2000 km), whichever comes first.

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Q. What costs are my responsibility during the warranty period?

A. The customers responsibility includes all costs of normal maintenance services, non-warranty repairs, accident and collision damages, as well as oil, spark plugs, clutch drive belts, and slide runners.

Q. What are some examples of abnormal strain, neglect, or abuse?

A. These terms are general and overlap each other in areas. Specific examples include: Running the machine out of oil, hitting an object submerged under snow, operation on surfaces other than snow or ice, operating the machine with a broken or damaged part which causes another part to fail, and so on. If you have any specific questions on operation or maintenance, please contact your dealer for advice.

Q. May I perform any or all of the recommended maintenance shown in the Owners Manual instead of having the dealer do them?

A. Yes, if you are a qualified snowmobile mechanic and follow the procedures specified in the Owners and Service Manual. We do recommend, however, that items requiring special tools or equipment be done by a Yamaha snowmobile dealer.

Q. Will the warranty be void or canceled if I do not operate or maintain my new Yamaha exactly as specified in the Owners Manual?

A. No. The warranty on a new Yamaha cannot be voided or canceled. However, if a particular failure is caused by operation or maintenance other than as shown in the Owners Manual, that failure may not be covered under warranty.

Q. Under what conditions is the clutch not covered by warranty?

A. Clutches as well as clutch components wear with use. Normal wear is not covered under warranty such service is the customers responsibility. Abnormal wear is, however, covered for one (1) year from the date of purchase. Your Yamaha snowmobile dealer possesses criteria as to what constitutes abnormal wear.

A special warranty extension is available for all new Yamaha snowmobiles purchased between May 1 and November 30.

All new Yamaha snowmobiles purchased between May 1 and November 30 will have the warranty extended to November 30 of the following year.

YAMAHA MAKES NO OTHER WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE OBLIGATIONS AND TIME LIMITS STATED IN THIS WARRANTY ARE HEREBY DISCLAIMED BY YAMAHA AND EXCLUDED FROM THIS WARRANTY.

SOME STATES/PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. ALSO EXCLUDED FROM THIS WARRANTY ARE ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING LOSS OF USE. SOME STATES/PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE/PROVINCE TO PROVINCE.

WARRANTY QUESTIONS AND ANSWERS

SPECIAL EARLY-SEASON WARRANTY EXTENSION

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88

Q. What responsibility does my dealer have under this warranty?

A. Each Yamaha snowmobile dealer is expected to: 1. Completely set up every new machine before sale. 2. Explain the operation, maintenance, and warranty

requirements to your satisfaction at the time of sale, and upon your request at any later date.

3. In addition, each Yamaha snowmobile dealer is held responsible for his setup, service and warranty repair work.

Q. Whom should I contact if I have further questions about this warranty?

A. Your Yamaha snowmobile dealer has the information and experience necessary to answer almost any questions about this warranty. If the dealer is not able to do so, he is expected to contact Yamaha, for clarification or assistance.

When contacting Yamaha, be sure to include the model, serial number, names, dates, and receipts.

This will ensure that Yamaha has an up-to-date registration record in accordance with federal law.

If your machine requires warranty service, you must take it to any authorized Yamaha snowmobile dealer within the continental United States or Canada. Be sure to bring your warranty identification card or other valid proof of the original date of purchase. If a question or problem arises regarding warranty, first contact the owner of the dealership. Since all warranty matters are handled at the dealer level, this person is in the best position to help you. If you are still not satisfied and require additional assistance, please write:

FOR U.S.A. CUSTOMERS:

CUSTOMER SERVICE

The federal government requires each manufacturer of a motor vehicle to maintain a complete, up-to-date list of all first purchasers against the possibility of a safety- related defect and recall. This list is compiled from the purchase registrations sent to Yamaha by the selling dealer at the time of your purchase.

If you should move after you have purchased your new snowmobile, please advise Yamaha of your new address by sending a subsequent owners card listing your snowmobile model name, engine serial number, dealer number (or dealers name) as it is shown on your warranty registration identification, your name and new mailing address. Mail to:

CHANGE OF ADDRESS

YAMAHA MOTOR CORPORATION, U.S.A. CUSTOMER RELATIONS

DEPARTMENT P.O. Box 6555

Cypress, California 90630

FOR CANADIAN CUSTOMERS:

YAMAHA MOTOR CANADA LTD. CUSTOMER RELATIONS

DEPARTMENT 480 GORDON BAKER RD Toronto, Ontario M2H 3B4

FOR U.S.A. CUSTOMERS:

YAMAHA MOTOR CORPORATION, U.S.A. CUSTOMER RELATIONS

DEPARTMENT P.O. Box 6555

Cypress, California 90630

FOR CANADIAN CUSTOMERS:

YAMAHA MOTOR CANADA LTD. CUSTOMER RELATIONS

DEPARTMENT 480 GORDON BAKER RD Toronto, Ontario M2H 3B4

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ESU12514

YAMAHA EXTENDED SERVICE (Y.E.S.) FOR U.S.A. CUSTOMERS

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ESU14501

YAMAHA PROTECTION PLUS (YPP) FOR CANADIAN CUSTOM- ERS

No one else offers you the superior engineering, style and performance you enjoy with your Yamaha. And no one else stands behind its product the way Yamaha doeswith the industrys best warranty coverage and best extended warranty plan: Yamaha Protection Plus. Yamaha Protection Plus gives you the option to extend your factory warranty by 12, 24 months, depending on your product and requirements. Combine that with Yamahas unsurpassed reputation for reliability, and youve got the peace of mind you deserve.

For further information, contact your dealer. For a dealer near you, visit our web site:

www.yamaha-motor.ca

While other plans can confuse you with deductibles, parts coverage and claim paperwork hassles, our factory-backed Yamaha Protection Plus gives you bullet-proof protection from the unexpected. And its as easy to understand and use as your Yamaha factory warranty.

Yamaha Protection Plus will be there, whether your repair expense is a few dollars or a few thousand.

Under the Yamaha Protection Plus program, Yamaha picks up the entire cost of parts and labour to repair every applicable mechanical defect.

Yamahas computerized warranty system is updated as soon as you buy coverage, so Yamaha Protection Plus takes over automaticallyand immediatelywhen your factory warranty expires. You can even get Yamaha Protection Plus coverage on many pre-owned Yamaha models.

Your Yamaha Protection Plus warranty is transferable, increasing the value of your Yamaha if you decide to sell or trade it in.

Since we already know your Yamaha, you dont have to fill out claim forms. Your Yamaha Protection Plus coverage information is available to every authorized Yamaha dealer nationwide.

You can purchase years of our Yamaha Protection Plus coverage for a fraction of what a single major repair could cost you.

With Yamaha Protection Plus, Yamaha is ready to step in to make any needed repairs (excluding those repairs due to normal wear or aging) using genuine parts and factory authorized service for the full duration of your coverage.

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Index

A Air filter, checking ……………………………… 55 Auxiliary DC jack (PZ50MP) ………………… 19 B Backrest (PZ50MP) ……………………………. 22 Battery……………………………………………… 74 Brake and parking brake…………………….. 65 Brake lever ……………………………………….. 19 Break-in……………………………………………. 36 C Center shock absorber and rear torsion

springs, adjusting spring preload ……… 28 Control rods, adjusting (PZ50MP)………… 31 Coolant temperature warning indicator … 17 Cooling system …………………………………. 60 D Drive chain housing……………………………. 63 Drive guard……………………………………….. 20 Drive indicator light and reverse

indicator light …………………………………. 14 Drive select switch …………………………….. 18 Drive track and slide runners ………………. 69 Drive track, high-profile pattern …………… 72 Drive track life, maximizing …………………. 40 Driving ……………………………………………… 41 E Engine idling speed, adjusting …………….. 53 Engine oil and oil filter cartridge…………… 56 Engine stop switch…………………………….. 18 F Fittings and fasteners…………………………. 74 Fuel …………………………………………………. 24 Fuel level warning indicator ………………… 16 Fuel meter and grip/thumb warmer level

indicator………………………………………… 14 Fuse, replacing………………………………….. 75 G General maintenance and lubrication

chart……………………………………………… 46 Grip/thumb warmer adjusting switch……. 19 H Headlight beam switch ………………………. 18 Headlight beams, adjusting ………………… 74 Headlight bulb, replacing ……………………. 73 High beam indicator light……………………. 13 High-altitude settings…………………………. 56

I Identification numbers ……………………….. 84 K Knock control system indicator light…….. 14 L Location of the important labels ……………. 1 Low coolant temperature indicator

light ………………………………………………. 13 Lubrication ……………………………………….. 72 M Main switch ………………………………………. 11 Multi-function meter unit…………………….. 12 O Oil level/pressure warning indicator……… 16 P Parking brake lever ……………………………. 20 Part locations ……………………………………… 9 Passenger grip warmer switch

(PZ50MP) ………………………………………. 21 Periodic maintenance chart for the

emission control system………………….. 45 Pre-operation check list ……………………… 33 R Rear carrier (PZ50MP)………………………… 23 Recommended equipment …………………. 48 Riding your snowmobile……………………… 36 S Safety information ……………………………….. 6 Self-diagnosis device…………………………. 17 Shock absorber, rear, adjusting

compression damping force (PZ50RT) ……………………………………….. 31

Shock absorbers, front, adjusting air pressure (PZ50RT) ………………………….. 27

Shock absorbers, front, adjusting spring preload (PZ50XT / PZ50MT / PZ50MP) ……………………………………….. 25

Shroud and covers, removing and installing………………………………………… 48

Skis and ski runners…………………………… 67 Spark plugs, checking ……………………….. 52 Specifications……………………………………. 82 Starting the engine…………………………….. 35 Steering system ………………………………… 69 Stopping the engine…………………………… 42 Storage…………………………………………….. 80

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Storage pouch ………………………………….. 22 Strap (PZ50MT)…………………………………. 41 Suspension ………………………………………. 25 T Throttle lever …………………………………….. 11 Throttle lever free play, adjusting

(PZ50RT / PZ50XT / PZ50MT) ………….. 53 Throttle lever free play, checking

(PZ50MP)………………………………………. 54 Throttle override system (T.O.R.S.)………. 11 Throttle override system (T.O.R.S.),

checking ……………………………………….. 54 Tool kit …………………………………………….. 48 Tow hitch (PZ50MP)…………………………… 23 Transporting……………………………………… 42 Troubleshooting ………………………………… 77 Two-up (2-up) adjusting blocks,

adjusting (PZ50MP) ………………………… 30 V Valve clearance…………………………………. 56 V-belt……………………………………………….. 62 V-belt holder (PZ50MP)………………………. 21 Vehicle Emission Control Information

label ……………………………………………… 85 W Warranty, extended……………………………. 89 Warranty, limited ……………………………….. 86 Warranty, protection plus……………………. 90

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ESU14243

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