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Yamaha PZ50FXW, Owner'S Manual

The Yamaha PZ50FXW Owner's Manual is a crucial resource for understanding and maintaining your PZ50FXW model. This comprehensive manual is available for free download from manualshive.com, allowing you to access all the necessary information and instructions conveniently. Get the most out of your Yamaha PZ50FXW with this informative manual.

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8-9

CAUTION:

@ 

Make sure that all cables, leads, etc., are routed
properly before installing the covers. 

@

NOTE:

@ 

When installing the covers, be sure to tighten the quick
fasteners and the quick fastener screws securely. 

@ 

ESU03681 

Checking the spark plugs

The spark plug is an important engine component and is
easy to inspect. The condition of the spark plug can indi-
cate 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 a light
tan color for a snowmobile that is being ridden normally.
If a spark plug shows a distinctly different color, there
could be something wrong with the engine. For example,
a very white center electrode porcelain color could indi-
cate 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 plug because
heat and deposits will cause a spark plug to slowly break
down and erode. Consult a Yamaha dealer before chang-
ing to a different type of spark plug.

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, carbon will form on the exposed
threads resulting in combustion chamber hot spots and
thread damage. Always use a spark plug with the speci-
fied reach.

Specified spark plug: 

R CR9EKB (NGK)

E_8gk.book  Page 9  Friday, June 16, 2006  9:53 AM

Summary of Contents for PZ50FXW

Page 1: ...OWNER S MANUAL SNOWMOBILE PZ50FXW PZ50GTW PZ50MW PZ50VTW 8GK 28199 10 LIT 12628 02 60 PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2006 06 3 1 2 CR E YAMAHA MOTOR CO LTD ...

Page 2: ......

Page 3: ...the spaces provided for assistance when ordering spare parts from a Yamaha dealer 1 The frame number is the seventeen digit number stamped on the frame of the snowmobile See fig È 2 The engine number is stamped in the location as shown See fig É 3 Key number See fig Ê Also record and keep the ID numbers in a separate place in case the snowmobile is stolen A B C E_8gk book Page 1 Friday June 16 200...

Page 4: ...cerning the operation or maintenance of your snowmobile please consult a Yamaha dealer To maintain the high quality and performance of this snowmobile it is important that you and your Yamaha dealer pay close attention to the recommended mainte nance schedules and operating instructions contained within this manual PZ50FXW PZ50GTW PZ50MW PZ50VTW OWNER S MANUAL 2006 by Yamaha Motor Corporation U S ...

Page 5: ...ed a permanent part of this snowmobile and should remain with the snow mobile when resold Particularly important information is distinguished in this manual by the following notations The Safety Alert Symbol means ATTENTION BECOME ALERT YOUR SAFETY IS INVOLVED WARNING Failure to follow WARNING instructions could result in severe injury or death to the snowmobile operator a bystander or a person in...

Page 6: ...witch 5 9 Brake lever 5 10 Parking brake lever 5 10 Headlight beam switch 5 11 Grip thumb warmer adjustment switch 5 11 Passenger grip warmer switch 5 11 Auxiliary DC jack 5 12 Shroud latches 5 12 Shroud and covers 5 13 Drive guard 5 14 V belt holder 5 14 Backrest 5 15 Storage compartment 5 15 Rear carrier 5 15 PRE OPERATION CHECKS 6 1 Fuel 6 1 Engine oil 6 2 Engine oil level 6 3 Coolant 6 4 Throt...

Page 7: ...g the throttle cable 8 11 Checking the throttle cable 8 11 Adjusting the high altitude settings 8 12 Adjusting the valve clearance 8 12 Changing the engine oil 8 13 Cooling system 8 15 Replacing the V belt 8 17 Checking the drive chain housing oil level and the drive chain tension 8 18 Checking the brake pads 8 19 Checking the parking brake pads 8 20 Checking the brake fluid level 8 20 Changing th...

Page 8: ... normal wear or routine maintenance including oil spark plugs clutch drive belts slide runners and track THE CUSTOMER S RESPONSIBILITY under this warranty shall be to 1 Operate and maintain the snowmobile as specified in the appropriate Owner s Manual 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 avai...

Page 9: ...park plugs clutch drive belts and slide runners Q What are some examples of abnormal strain ne glect or abuse A These terms are general and overlap each other in areas Specific examples include Running the ma chine 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 ...

Page 10: ... 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 YAMAHA MOTOR CORPORATION U S A CUSTOMER RELATIONS DEPARTMENT P O Box 6555 Cypress California 90630 When contacting Yamaha Motor Corpora tion U S A be sure to include the model serial number names dates and receipts CHANGE OF...

Page 11: ...1 4 ESU04280 YAMAHA EXTENDED SERVICE Y E S CW 06E E_8gk book Page 4 Friday June 16 2006 9 53 AM ...

Page 12: ...RTANT LABELS Please read the following labels carefully before operat ing this snowmobile NOTE Maintain or replace safety and instruction labels as nec essary 1 PZ50FX PZ50GT PZ50M 1 PZ50VT 2 E_8gk book Page 1 Friday June 16 2006 9 53 AM ...

Page 13: ...2 2 3 PZ50FX 4 PZ50FX PZ50GT PZ50M 5 PZ50M 6 PZ50M 7 PZ50M 4AA 22259 70 4AA 22259 60 8ED 2191H E0 8FN 77761 E0 E_8gk book Page 2 Friday June 16 2006 9 53 AM ...

Page 14: ...signed to carry the OPERATOR ONLY Passengers are prohibited Carrying a passenger can cause loss of control 4 Do not operate the snowmobile after drinking alcohol or taking drugs Your ability to operate the snowmo bile is reduced by the influence of alcohol or drugs 5 For safety and proper care of the snowmobile always perform the pre operation checks on pages 6 1 6 11 before starting the engine Ch...

Page 15: ...ne vapor or get some gasoline into your eyes see your doctor immediately If any gasoline spills on your skin or clothing immediately wash your skin with soap and water and change your clothes 10 Wear protective clothing Wear an approved helmet and a face shield or goggles Also wear a good qual ity snowmobile suit boots and a pair of gloves or mit tens that will permit use of your thumbs and finger...

Page 16: ...elease the throttle and apply the brake gently not suddenly Maintenance and storage 1 Do not leave the snowmobile on its left side for an extended period of time Fuel may leak out from the fuel breather hose 2 Modifications made to the snowmobile not approved by Yamaha or the removal of original equipment may render your snowmobile unsafe for use that may cause severe personal injury Modifications...

Page 17: ...lebar 4 Seat 5 Passenger grip warmer switch PZ50VT 6 Frame 7 Backrest PZ50VT 8 Rear carrier PZ50VT 9 Storage compartment PZ50FX PZ50GT PZ50M 0 Tool kit A Slide rail suspension B Drive track C Skis PZ50FX PZ50GT PZ50M PZ50VT E_8gk book Page 1 Friday June 16 2006 9 53 AM ...

Page 18: ...rror PZ50VT G Headlights H Shroud PZ50VT I Left upper cover J Left side cover K Air filter case cover L Front cover PZ50FX PZ50GT PZ50M M Strap PZ50M N Tail brake light O Snow flap PZ50FX PZ50GT PZ50M PZ50VT E_8gk book Page 2 Friday June 16 2006 9 53 AM ...

Page 19: ...temperature warning indicator a Self diagnosis warning indicator b Speedometer c Odometer tripmeter engine speed meter d Fuel meter and grip thumb warmer level indicator e Fuel meter indicator f Drive D indicator light g Reverse R indicator light h Drive select switch i Knock control system KCS indicator light j High beam indicator light k Low coolant temperature indicator light l Warning light m ...

Page 20: ...E The headlights and taillight come on after the engine starts ESU00022 Throttle lever Once the engine is running cleanly squeezing a the throt tle lever 1 will increase the engine speed and cause engagement of the drive system Regulate the speed of the snowmobile by varying the throttle position Because the throttle is spring loaded the snowmobile will deceler ate and the engine will return to id...

Page 21: ...es or throttle cable malfunctions during operation the T O R S will operate when the throttle lever is released The T O R S is designed to interrupt the fuel injection and keep the engine speed between 2 800 and 3 000 r min if the throttle valves fail to return to the idle position when the throttle lever is released WARNING If the T O R S is activated make sure that the cause of the malfunction h...

Page 22: ...ll flash and the two digit code 84 6 will flash in the clock dis play The T O R S monitors the condition of the throttle position sensor speedometer assembly and speed sensor and will operate if any of the monitored items is disconnected or malfunctioning A B C Mode Item Idling starting Running Trouble Throttle switch Off On Off Throttle position sensor Closed Open Open Engine Run Run T O R S will...

Page 23: ...er which shows the fuel remaining in the fuel tank a grip thumb warmer level indicator which shows the grip warmer or the thumb warmer level After the main switch is turned on the warning light 1 the low coolant temperature indicator light 2 the knock control system KCS indicator light 3 the drive D indi cator light 4 the reverse R indicator light 5 and all segments of the meter display 6 turn on ...

Page 24: ... operation ESU05390 Fuel meter and grip thumb warmer level indicator The fuel meter and grip thumb warmer level indicator 1 have eight segments which show the amount of fuel remaining in the fuel tank or show the grip warmer or the thumb warmer level Fuel meter As the fuel level decreases in the fuel tank the segments disappear until the level goes down to the last segment E Empty When this occurs...

Page 25: ...upler broken lead or short circuit when detected by the self diagnosis device of the snowmobile The fuel level warning indicator 1 warning light 2 and all segments of the fuel meter 3 warn the rider of the above problems by flashing continuously When this occurs have a Yamaha dealer inspect the snowmobile as soon as possible ESU03770 Oil level warning indicator The oil level warning indicator 1 an...

Page 26: ...tor lights show whether the snowmobile is shifted into drive or reverse The drive D indicator light 1 comes on when the trans mission is in drive forward The reverse R indicator light 2 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 5 9 for drive select switch operation ESU05410 Knock control system KCS i...

Page 27: ...tails ESU04180 Coolant temperature warning indicator If the engine overheats the coolant temperature warning indicator 1 and the warning light 2 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 pages 6 4 6 5 CAUTION Do not operate the engine if it overheats ESU04254 Self diagnostic system This model...

Page 28: ... stop the engine in an emergency Simply push 2 the stop switch to stop the engine To start the engine pull 3 the stop switch and proceed with starting the engine See page 7 1 for more details During the first few rides practice using the stop switch so that you can react quickly in an emergency ESU05440 Drive select switch The drive select switch 1 is used to shift the snowmobile into drive or rev...

Page 29: ...brake lever damage when the snowmobile is placed on its side for service ESU00035 Parking brake lever When parking the snowmobile or starting the engine apply the parking brake by moving the brake lever 1 to the left To release the parking brake move the parking brake lever 1 to the right È To apply the parking brake É To release the parking brake WARNING Always set the parking brake before attemp...

Page 30: ...rature To raise the grip warmer temperature press the side of the switch To raise the thumb warmer tempera ture press the side of the switch To lower the temperature Continue to press the switch until the temperature level returns to the minimum level and then raise the tem perature to the desired level ESU04290 Passenger grip warmer switch For PZ50VT The passenger grip warmer switch controls the ...

Page 31: ...not use accessories requiring more than the maximum rated capacity for the auxiliary DC jack This may overload the circuit and cause the fuse to blow See page 8 33 for the specified amper age Do not use an automotive cigarette lighter or other accessory with a plug that gets hot because the jack can be damaged ESU00482 Shroud latches For PZ50VT To open the shroud unhook the shroud latches and then...

Page 32: ...shroud open Do not touch the hot muffler and engine during or immediately after operation ESU05460 Shroud and covers Securely fasten the shroud and covers before operating the snowmobile See pages 8 6 8 9 for removal and installation procedures For PZ50FX PZ50GT PZ50M 1 Air filter case cover 2 Front cover 3 Right side cover 4 Right upper cover 5 Top cover 6 Right lower cover 7 Left side cover E_8g...

Page 33: ...eration CAUTION Make sure that all cables leads etc are in place when closing the shroud and installing the covers ESU00521 Drive guard The drive guard is designed to cover the V belt clutch and V belt in case parts break or come loose WARNING Make sure that the drive guard is tightened securely before operating the snowmobile Never run the engine with the V belt or drive guard removed ESU05430 V ...

Page 34: ...For PZ50FX PZ50GT PZ50M Open the storage compartment to store the tool kit spare parts or other small items ESU05020 Rear carrier For PZ50VT The rear carrier is located at the rear of the snowmobile 1 Rear carrier WARNING Do not use the rear carrier to lift the snowmobile The snowmobile could fall which could result in severe injury or death Backrest bolt tightening torque 19 Nm 1 9 m kgf 14 ft lb...

Page 35: ...r or a research octane num ber of 95 or higher If the recommended fuel is not used the engine may not perform as it should WARNING Fuel is HIGHLY FLAMMABLE and poisonous Check the SAFETY INFORMATION section carefully before refueling See page 3 2 Do not fill the fuel tank above the bottom of the filler tube 1 Fuel could overflow if the snowmo bile is tilted or if the ambient temperature rises caus...

Page 36: ... enter the fuel tank when refueling Do not use alcohol deicers or water absorbing additives with oxygenated fuel The fuel tank should be filled with straight gaso line as specified ESU04031 Engine oil Use a combination of the recommended SAE and API oil classifications shown in the chart below CB 02E CAUTION Use only 4 stroke engine oil SAE API SE SF SG or higher 40 20 0 20 40 60 F SAE 0W 30 40 29...

Page 37: ...t side cover for PZ50FX PZ50GT PZ50M or open the shroud and remove the right upper cover and the right side cover for PZ50VT See pages 8 6 8 9 for removal procedures 4 Disconnect the oil level gauge coupler 1 CAUTION Disconnect the oil level gauge coupler before remov ing the oil level gauge dipstick Otherwise the cable can twist and break 5 Remove the oil level gauge dipstick 2 wipe it clean inse...

Page 38: ...move the top cover for PZ50FX PZ50GT PZ50M or open the shroud for PZ50VT and then remove the right upper cover See pages 8 6 8 9 for removal procedures 2 Check the coolant level in the coolant reservoir when the engine is cold If the coolant level is below the COLD LEVEL mark add soft water until it reaches the COLD LEVEL mark See pages 8 15 8 17 for more details 1 COLD LEVEL mark WARNING Do not r...

Page 39: ...gagement r min Otherwise the snowmobile could start moving forward unexpectedly which could cause an accident 1 Start the engine NOTE Refer to the Starting the engine section 2 Hold the pivot point of the throttle lever away from the throttle switch by putting your thumb above and forefinger below between the throttle lever pivot 1 and the engine stop switch housing 2 While holding the pivot point...

Page 40: ...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 CAUTION Make sure that the brake lever end does not project out over the handlebar end This is to prevent brake lever damage when the snowmobile is placed on its side 2 Brake fluid Check the...

Page 41: ...over for PZ50FX PZ50GT PZ50M or open the shroud and remove the left upper cover and the left side cover for PZ50VT See pages 8 6 8 9 for removal procedure 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 for PZ50FX PZ50GT PZ50M or install the left side cover and the left upper cover and then close the shrou...

Page 42: ...hich could cause an accident ESU02430 51 mm 2 0 in high profile pattern drive track For PZ50M This snowmobile is originally equipped with a 51 mm 2 0 in high profile pattern drive track 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 CAUTION Only use in d...

Page 43: ...he skis and ski runners for wear and damage Replace if necessary CAUTION Avoid scratching the skis when loading and unload ing the snowmobile when riding in areas with little or no snow or on sharp edges such as concrete curbs etc This will wear or damage the skis Wear limit height 10 5 mm 0 41 in For PZ50FX PZ50GT PZ50VT Ski runner wear limit a 6 mm 0 24 in Ski wear limit b 13 mm 0 51 in For PZ50...

Page 44: ...es 8 6 8 9 for removal procedures 2 Unhook the air filter element frame fasteners 3 Lift up the air filter element frame and check the air filter element If there is any snow on the air filter ele ment remove the element and brush off the snow and then install the air filter element 4 Place the air filter element frame in its original posi tion and then hook the fasteners onto the frame 5 Install ...

Page 45: ...ing the snowmobile so that minor repairs can be done if neces sary The following should be carried at all times Tool kit Flashlight Roll of plastic tape Steel wire Towrope Jumper cables V belt Light bulbs Spark plugs When you start out for a long distance trip extra fuel and oil should be carried as well E_8gk book Page 11 Friday June 16 2006 9 53 AM ...

Page 46: ... operated when the engine stop switch is in the off position 1 Turn the main switch to the START position Warm up the engine until it does not run roughly 1 START CAUTION Release the switch immediately after the engine starts If the engine 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 ...

Page 47: ...r 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 0 160 km 0 100 mi Avoid prolonged operation above 8 000 r min 160 500 km 100 300 mi Avoid prolonged operation above 10 000 r min 500 km 300 mi and beyond The snowmobile can now be operated normally CAUTION After 800 km 500 mi of operat...

Page 48: ... and a more reliable snowmobile Always wear the proper cloth ing 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 experienced rider Do not attempt to oper ate at maximum performance until you are totally familiar with the snowmobile s han dling and performance characteristics Set the parking b...

Page 49: ...ith the operation of your snowmobile Riding uphill You should practice first on gentle slopes Try more difficult climbs only after you have developed your skill As you approach a hill accelerate 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 accompl...

Page 50: ... 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 aga...

Page 51: ...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 lubrication snow or water between the slide runners and the slide metal In the absence of lubrication the slide runners will rapidly wear and in severe cases liter ally melt away and the drive track will b...

Page 52: ...ed high speed usage in areas such as icy trails frozen lakes and rivers that have minimal snow coverage An overheated track will be weakened internally which may cause fail ure or damage Off trail riding Avoid off trail riding until there is sufficient snow cover age It generally takes several feet of snow to provide a good overall base to properly cover debris such as rocks logs etc If snow cover...

Page 53: ...ap use Keep the right hand on the right handlebar 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 snowmobile Do not use the strap as a mounting point for cargo or accessories ESU05520 Driving W...

Page 54: ...t WARNING Make sure that the throttle lever is fully released and the snowmobile is at a full stop before shift ing Be sure to press the drive select switch only while the engine is idling Make sure that the area behind the snowmobile is clear before reversing Watch behind Reduce speed and avoid sharp turning when operating the snowmobile in reverse CAUTION Do not shift from drive to reverse or fr...

Page 55: ...observe the following recommendations to help protect it from damage If transporting the snowmobile in an open trailer or truck put a tight fitting cover on the snowmobile A cover specifically designed for your snowmobile is best This will help keep foreign objects out of the cooling vents and also help protect the snowmobile against damage from debris on the road If transporting the snowmobile in...

Page 56: ...NOT ONLY ENSURE CLEANER AIR BUT ARE ALSO VITAL TO PROPER ENGINE OPERATION AND MAXIMUM PERFORMANCE IN THE FOLLOWING PERI ODIC MAINTENANCE CHARTS THE SERVICES RELATED TO EMISSIONS CONTROL ARE GROUPED SEPARATELY THESE SERVICES REQUIRE SPECIALIZED DATA KNOWLEDGE AND EQUIPMENT YAMAHA DEALERS ARE TRAINED AND EQUIPPED TO PERFORM THESE PARTICULAR SERVICES ESU04970 Periodic maintenance chart for the emissi...

Page 57: ... 6 1 6 2 Engine coolant Check coolant level 6 4 6 5 Air bleed the cooling system if necessary 8 15 Throttle lever handlebar side Check operation Repair if necessary 5 1 6 5 Throttle override system T O R S Check operation Repair if necessary 5 2 6 5 Engine stop switch Check operation Repair if necessary 5 9 Drive guard Check for cracks bends or damage Replace if necessary 5 14 6 8 V belt Check for...

Page 58: ...Skis and ski runners Check for wear and damage 6 9 Replace if necessary Steering system Check operation 6 10 Adjust toe out if necessary Strap PZ50M Check for damage Replace if necessary Lights Check operation Replace bulbs if necessary 6 10 8 33 8 34 Battery Check condition Charge if necessary 8 34 Primary and second ary clutches Check engagement and shift speed Adjust if necessary Whenever opera...

Page 59: ...ion component Lubricate with specified grease 8 32 Parking brake cable end and lever end throttle cable end Lubricate with specified grease 8 32 Check cable damage Replace if necessary Shroud and covers Make sure that the shroud and covers are securely fastened 5 13 8 6 8 9 Fittings and fasteners Check tightness Repair if necessary 6 10 Tool kit and recom mended equipment Check for proper placemen...

Page 60: ...Tool kit È PZ50FX PZ50GT PZ50M É PZ50VT CAUTION Before starting the engine make sure that the tool kit is properly seated in its holder and is securely fastened NOTE 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 A B E_8gk book Page 5 Friday June 16 2006 9 53 AM ...

Page 61: ...h 6 Shroud To close the shroud and 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 quick fasteners 2 Fit the holders on the front cover over the projections on the air filter case cover slide the front cover down ward and then hook the latc...

Page 62: ...n remove the right side cover 3 Quick fastener screw 4 Right side cover To install the right side cover Place the right side cover in the original position and then tighten the quick fastener screws Top cover for PZ50FX PZ50GT PZ50M To remove the top cover Pull up on the rear of the top cover 1 Top cover To install the top cover Insert the projections on the front of the top cover into the slots i...

Page 63: ...the quick fasteners and then remove the upper cover 1 Quick fastener 2 Left upper cover 3 Right upper cover To install an upper cover Insert the projections on the upper cover into the slots and fit the holders on the cover onto the grommets and then tighten the quick fasteners 4 Projection 5 Holder 6 Grommet 7 Slot WARNING Do not drive the snowmobile with the shroud or covers unfastened or remove...

Page 64: ... 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 plug because heat and deposits will cause a spark plug to slowly break down and erode Consult a Yamaha dealer before chang ing to a different type of spark plug Sp...

Page 65: ...any grime from the threads and tighten the spark plug to the specified torque CAUTION Make sure that the spark plug caps are securely installed Otherwise the spark plug caps could be damaged due to engine vibration Spark plug reach a 19 0 mm 0 75 in Spark plug gap b 0 6 0 7 mm 0 024 0 028 in Spark plug tightening torque 12 5 Nm 1 25 m kgf 9 ft lb E_8gk book Page 10 Friday June 16 2006 9 53 AM ...

Page 66: ... Install the rubber cap ESU05310 Adjusting the throttle cable For PZ50FX PZ50GT PZ50M 1 Loosen the locknut 2 Turn the adjuster in or out until the proper throttle lever free play is achieved 1 Locknut 2 Adjuster 3 Tighten the locknut ESU05530 Checking the throttle cable For PZ50VT Check the throttle lever free play Have a Yamaha dealer adjust the free play if necessary Standard engine idling speed...

Page 67: ...rcome operating with less power at high altitudes your snowmobile may also require different settings for the drive chain gears and V belt clutch to avoid poor per formance and rapid wear If you plan to operate your snowmobile at an altitude different from the area where you bought it be sure to consult a Yamaha dealer The dealer can tell you if there are any changes necessary for the altitude whe...

Page 68: ... replace the oil filter cartridge To change the engine oil without oil filter cartridge replacement 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 for PZ50FX PZ50GT PZ50M or open the shroud and remove the right upper cover and the right side cover for PZ50VT See pages 8 6 8 9...

Page 69: ...e that no foreign material enters the engine oil tank 12 Start the engine and then let it idle for several min utes while checking it for oil leakage If oil is leaking immediately turn the engine off and make sure that the engine oil drain bolts and oil level gauge dipstick are installed correctly 13 Turn the engine off and then connect the oil level gauge coupler Tightening torques Crankcase engi...

Page 70: ...e is hot Scalding hot fluid and steam may be blown out under pressure 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 counterclockwise to the detent This procedure allows any residual pressure to escape When the hissing sound has stopped press down on the cap while turning counter clockwise and remove i...

Page 71: ...system or if there is a cooling system leak Consult a Yamaha dealer 1 Remove the top cover and the right upper cover for PZ50FX PZ50GT PZ50M or open the shroud and remove the right upper cover for PZ50VT See pages 8 6 8 9 for removal procedures 2 Remove the coolant reservoir cap add the recom mended coolant until it reaches the COLD LEVEL mark and then install the cap 1 COLD LEVEL mark 2 Coolant r...

Page 72: ...ry sliding sheave by changing the positions of the spacers Have a Yamaha dealer make this adjustment CD 05E NOTE Apply the parking brake before replacing the V belt 1 Remove the left side cover for PZ50FX PZ50GT PZ50M or open the shroud and remove the left upper cover and the left side cover for PZ50VT See pages 8 6 8 9 for removal procedure 2 Remove the drive guard 3 Rotate the secondary sliding ...

Page 73: ...ith the V belt or drive guard removed ESU05640 Checking the drive chain housing oil level and the drive chain tension Checking the oil level WARNING The engine oil tank brake disc and coolant hoses will be very hot after the engine has been run Avoid contact while they are still hot with any part of your body or clothing during inspection or repair 1 Place the snowmobile on a level surface 2 Remov...

Page 74: ...nutes at more than 20 km h 12 4 mph and then repeat steps 1 6 to check the oil level again Adjusting the chain tension 1 Remove the right side cover See pages 8 6 8 9 for removal procedures 2 Loosen the locknut 3 Turn the adjusting bolt clockwise until it is finger tight and then loosen it 1 4 turn 4 Hold the adjusting bolt in place while tightening the locknut 1 Locknut 2 Adjusting bolt 5 Install...

Page 75: ...2 2 Loosen the cable locknut 3 3 Turn the cable adjuster 4 in or out to adjust the cable length 4 Tighten the cable locknut 5 Turn the adjusting bolt in or out to adjust the clear ance between the parking brake pads 5 and the brake disc 6 6 Tighten the locknut ESU00180 Checking the brake fluid level Place the snowmobile on a level surface Check that the brake fluid is above the lower level and rep...

Page 76: ...when the following components are replaced during the periodic mainte nance or if they are damaged or leaking a All oil seals of the master cylinder and caliper cylinder b The brake hose WARNING Make sure that the brake fluid and the above parts are replaced by a Yamaha dealer ESU00183 Suspension The suspension can be adjusted to suit rider preference A softer setting for example may provide great...

Page 77: ...reload 2 Hard Soft 3 Standard 1 Spring seat length Standard Increased Decreased Preload Harder Softer a Length Maximum 129 0 mm 5 08 in 119 0 mm 4 69 in Minimum 119 0 mm 4 69 in The spring seat length changes approximately 1 5 mm 0 06 in with each full turn of the adjuster Spring seat length Standard Increased Decreased Preload Harder Softer a Length Maximum 160 5 mm 6 32 in 150 5 mm 5 93 in Minim...

Page 78: ... which could cause it to explode Do not deform or damage the shock absorber in any way Do not dispose of a worn or damaged shock absorber by yourself Take the unit to a Yamaha dealer ESU04750 Adjusting the ski damping forces For PZ50FX Compression damping force The compression damping force of each ski shock absorber can be adjusted by turning the compression damping force adjusting knob 1 CD 28E ...

Page 79: ...G This shock absorber contains highly pressurized nitrogen gas It could explode by improper handling causing injury or property damage Do not tamper with or attempt to open the shock absorber Do not subject the shock absorber to an open flame or other high heat source which could cause it to explode Do not deform or damage the shock absorber in any way Do not dispose of a worn or damaged shock abs...

Page 80: ...ft Hard È Standard front 1 B Spring adjuster position 1 2 3 4 5 Preload Soft Hard É Standard front 3 C Spring seat length Standard Increased Decreased Preload Harder Softer Ê a Length front Maximum 123 5 mm 4 86 in 113 5 mm 4 47 in Minimum 113 5 mm 4 47 in The spring seat length changes approximately 1 5 mm 0 06 in with each full turn of the adjuster D Spring adjuster position S M H Preload Soft M...

Page 81: ...he rear suspension damping forces For PZ50FX The compression damping force can be adjusted by turn ing the adjuster 1 CD 30E CAUTION Do not continue to turn the adjuster in direction a after it stops The shock absorber can be damaged and damping force adjustments cannot be made Do not turn the adjuster in direction b more than 20 clicks Even if the adjuster is continually turned after 20 clicks th...

Page 82: ...ed by turning the con trol rod adjusting nut 1 1 Loosen the locknut 2 while holding the control rod adjusting nut 2 Turn the adjusting nut in direction a to increase weight transfer or direction b to decrease weight transfer 3 Tighten the locknut while holding the adjusting nut in place CAUTION When using the two wrenches included in the owner s tool kit make sure that they are situated at a right...

Page 83: ... sure to make this adjustment when there is no load rider or cargo on the snowmobile 1 Install the special tools 1 and 2 included in the owner s tool kit to the 2 up adjusting block 3 2 Pull the lock lever 4 and turn the special tool 2 to change the block position 3 Release the lock lever CAUTION Make sure that the 2 up adjusting blocks are installed in the same position on both sides of the snowm...

Page 84: ...n frequently Replace damaged slide metal Replace the drive track if it is damaged to the depth where fabric reinforcement material is visible or support rods are broken Otherwise track damage or failure could result in loss of braking ability and snow mobile control which could cause an accident Measuring the drive track deflection 1 Lay the snowmobile on its side 2 Measure the drive track deflect...

Page 85: ...two turns Stop the engine 4 Check the drive track alignment with the slide runners 2 If the alignment is incorrect align the drive track by turning the left and right adjusters CD 08E 7 Slide runners 8 Drive track 9 Slide metal a Gap b Forward 5 Adjust the drive track deflection to specification CD 09E 5 6 Drive track alignment 5 Shifted to right 6 Shifted to left 3 Left adjuster Turn out Turn in ...

Page 86: ...he rear axle nut ESU02001 Aligning the skis 1 Turn the handlebar so the skis face straight ahead 2 Check the following for ski alignment a Skis are facing forward b Ski toe out 1 2 is within specification 3 If the alignment is not correct consult a Yamaha dealer Rear axle tightening torque 75 Nm 7 5 m kgf 54 2 ft lb Ski toe out 1 2 0 15 mm 0 0 59 in E_8gk book Page 31 Friday June 16 2006 9 53 AM ...

Page 87: ...se onto the cable end only Do not grease the throttle cable because it could become frozen which could cause loss of control 2 Rear suspension WARNING Be sure to have a Yamaha dealer lubricate the front and rear suspensions Lubricant Low temperature grease 2 2 E_8gk book Page 32 Friday June 16 2006 9 53 AM ...

Page 88: ...ammable products and your hands away from the hot bulb until it has cooled down 6 Install the new bulb and then hook the bulb holder onto the headlight unit 7 Install the bulb holder cover and then connect the headlight coupler 8 Install the top cover for PZ50FX PZ50GT PZ50M or close the shroud for PZ50VT CAUTION Keep oil and your hands away from the glass part of the bulb or its life and illumina...

Page 89: ... the battery tends to discharge more quickly if the snowmobile is equipped with electrical accessories WARNING Battery electrolyte is poisonous and dangerous 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 water or milk Follow with milk of magnesia beaten egg or vegetable oil Call ph...

Page 90: ...tery lead 3 Replace the blown fuse with one of the proper amperage 9 Spare fuses 20 A 15 A 10 A 7 5 A 4 A 3 A 4 Connect the negative battery lead 5 Install the right side cover NOTE If the fuse immediately blows again ask a Yamaha dealer to inspect the snowmobile Specified fuses 1 Main fuse 40 A 2 Fuel injection system fuse 10 A 3 HEAD Headlight fuse 20 A 4 SIG Signal fuse 7 5 A 5 DC TERM Auxiliar...

Page 91: ...ent Loose cylinder head nuts Tighten nuts properly Worn or damaged gasket Replace gasket Worn or damaged piston and cylinder Ask a Yamaha dealer to inspect B Starting the engine with a dis charged battery If the snowmobile battery is discharged the engine can be started using a 12 volt battery and jumper cables WARNING Connect the jumper cables only to the battery terminals Do not con nect them to...

Page 92: ...e connections Check con nections or ask a Yamaha dealer to inspect 3 Discharged battery Charge battery or see B above 4 Seized engine Seizure is caused by poor lubrication inadequate fuel or an air leak Ask a Yamaha dealer to inspect D Engine power is low 1 Low coolant temperature indicator light is flashing Warm the engine up 2 Faulty spark plugs Clean or replace the spark plugs 3 Improper fuel f...

Page 93: ... driveline See H above J Engine does not upshift or down shift properly or engages harshly 1 Worn or damaged V belt Replace the V belt or ask a Yamaha dealer to inspect 2 Incorrect V belt clutch settings for alti tude or conditions Ask a Yamaha dealer to inspect 3 Worn or sticking primary sheave assembly Ask a Yamaha dealer to inspect 4 Worn or sticking secondary sheave assembly Ask a Yamaha deale...

Page 94: ... the fuel increases the chance for water to enter the engine Use Yamaha Stor Rite Engine Fogging Oil or an equiva lent fogging oil to protect both the com bustion chamber and crankshaft from corrosion An alternate method is to remove the intake silencer and squirt oil into the throttle bodies while the engine is running CAUTION Do not attempt to store the snowmobile by simply starting the engine o...

Page 95: ...irect sunlight Put a fab ric cover over the snowmobile preferably one that is designed for it Do not use a plastic or vinyl cover condensation could be trapped underneath which could increase the chances of rusting Returning to service after storage When returning your snowmobile to ser vice install the V belt and battery and adjust the drive track Remove the spark plugs and clean or replace them ...

Page 96: ...Z50VT Dry weight 221 kg 487 lb PZ50FX PZ50GT 233 kg 514 lb PZ50M 268 kg 591 lb PZ50VT Ski stance 1 080 mm 42 5 in PZ50FX PZ50GT PZ50VT 980 mm 38 6 in PZ50M PZ50FX PZ50GT PZ50M PZ50VT Type Liquid cooled 4 stroke 10 valves Cylinder arrangement Parallel 2 cylinder Displacement 449 cm3 Bore Stroke 77 0 53 6 mm 3 03 2 11 in Idle speed 1 800 100 r min Engine oil type API SE SF SG or higher SAE 0W 30 Thr...

Page 97: ...finite ly variable 3 8 1 0 95 1 Sheave distance Approx 268 5 mm 10 57 in Sheave offset Approx 16 mm 0 63 in Engagement speed 1 Approx 3 900 r min PZ50FX PZ50GT Approx 4 300 r min PZ50M Approx 3 500 r min PZ50VT Shift speed 1 Approx 11 300 r min 2 Drive chain Silent chain enclosed in oil bath Reduction ratio 41 18 2 28 PZ50FX 41 20 2 05 PZ50GT 41 17 2 41 PZ50M 45 19 2 37 PZ50VT Fuel tank Tank capac...

Page 98: ... after approximately 800 m 0 5 mi traveled PZ50FX PZ50GT PZ50M PZ50VT Ignition system TCI Spark plug Type R CR9EKB NGK Gap 0 6 0 7 mm 0 024 0 028 in Battery Capacity YTX14 BS 12 V 12 A h Maximum charge rate 1 2 Amperes hr for 10 hrs Headlight Bulb Quantity 12 V 60 55 W 2 Tail brake light Bulb Quantity LED Meter light Bulb Quantity LED Indicator light Bulb Quantity LED PZ50FX PZ50GT PZ50M PZ50VT E_...

Page 99: ... MEMO E_8gk book Page 4 Friday June 16 2006 9 53 AM ...

Page 100: ...L Y Lg R W Br W L W P Y L L W B R W B R W R O Y R Br L L R B R B Y L G Y Lg B G B Gy R Sb W Br W B L 40A 20A 20A 7 5A R W Gy R R W BLACK A Gy R A A R B R B A BLACK L P B L L P B L Gy R Gy R C B L B L C G W G W W B C Ch Ch Ch W L A BLACK BLACK W Lg Lg L G Y L R W Br R Br R R W G Y Br R L B W B G B O B O B B F B B D B B D L R L R D G G W R Br P L R O B B B B Y R B Y R B B Y R B Y R B O B L R OFF ON ...

Page 101: ...r e Brake light switch f Tail brake light g Fuel sender h Oil level switch i Speedometer unit j Headlight k Headlight relay l Headlight beam switch m Radiator fan motor n Radiator fan motor relay o Auxiliary DC jack p IGN Ignition fuse q FAN Radiator fan motor fuse r SIG Signal fuse s HEAD Headlight fuse t DC TERM Auxiliary DC jack fuse u GEAR Gear motor fuse È PZ50VT É PZ50M PZ50VT Ê PZ50VT Ë PZ5...

Page 102: ... MEMO E_8gk book Page 3 Friday June 16 2006 9 53 AM ...

Page 103: ......

Page 104: ...OWNER S MANUAL SNOWMOBILE PZ50FXW PZ50GTW PZ50MW PZ50VTW 8GK 28199 10 LIT 12628 02 60 PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2006 06 3 1 2 CR E YAMAHA MOTOR CO LTD ...

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