Yamaha SXV70ERG Owner'S Manual Download

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OWNER’S MANUAL

SNOWMOBILE

SXV70G

SXV70ERG

8EK-28199-10

LIT-12628-02-22

PRINTED ON RECYCLED PAPER

PRINTED IN JAPAN
2001 · 4 - 2.5

1 CR

Summary of Contents for SXV70ERG

Page 1: ...OWNER S MANUAL SNOWMOBILE SXV70G SXV70ERG ...

Page 2: ......

Page 3: ...y ID and key number in 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 ...

Page 4: ...opera tion of this snowmobile and minor maintenance required for satisfactory service Should major repairs ever be required you are advised to ask a Yamaha dealer to inspect and repair the snow mobile whenever it is necessary they have the tech niques tools and parts to ensure your satisfaction We hope that the information within this manual will help you enjoy many hours of pleasure with your Yam...

Page 5: ...nual should be considered 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 b...

Page 6: ...ud latches 5 12 Drive guard 5 12 V belt holders 5 13 Spark plug holders 5 13 Carburetor heating knob 5 13 Storage compartment 5 13 PRE OPERATION CHECKS 6 1 Fuel 6 1 Engine oil 6 2 Coolant 6 2 Throttle lever 6 3 Recoil starter 6 3 Throttle override system T O R S 6 3 Brake 6 4 Brake fluid leakage 6 5 V belt 6 5 Drive guard 6 5 Drive track 6 6 Slide runners 6 6 Skis and ski runners 6 7 Steering syst...

Page 7: ...e adjustments 8 10 Cooling system 8 11 V belt replacement 8 13 Checking the oil level of the drive chain housing 8 16 Checking the brake pads 8 17 Checking the parking brake pads 8 17 Checking the brake fluid level 8 18 Brake fluid replacement 8 19 Suspension 8 19 Drive track adjustment 8 24 Ski alignment 8 26 Lubrication 8 27 Headlight bulb replacement 8 28 Headlight beam adjustment 8 28 Battery ...

Page 8: ...1 1 ESU00004 1 YAMAHA MOTOR CORPORATION U S A SNOWMOBILE LIMITED WARRANTY CW 01E ...

Page 9: ...1 2 CW 02E ...

Page 10: ...1 3 CW 03E ...

Page 11: ...1 4 ESU00005 YAMAHA EXTENDED SERVICE Y E S CW 10E ...

Page 12: ...R SANS COURROIE EN V OU PROTECTEUR D EMBRAYAGE DO NOT OPERATE ENGINE WITHOUT V BELT OR DRIVE GUARD 8BD 77762 00 AVERTISSEMENT WARNING This unit contains high pressure nitrogen gas Mishandling can cause explosion Read owner s manual for instructions Do not incinerate puncture or open Cette unité contient de l azote à haute pression Une mauvaise manipulation peut entraîner d explosion Voir le manuel...

Page 13: ...0 and SXV70ER are designed 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 9 before sta...

Page 14: ... inhale a lot of gasoline 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...

Page 15: ...n most surfaces is to release 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 person...

Page 16: ...4 1 ESU00012 4 DESCRIPTION 1 Windshield 2 Steering handlebar 3 Seat 4 Frame 5 Slide rail suspension 6 Drive track 7 Skis 8 Headlight 9 Shroud ...

Page 17: ...V70ER I Starter handle J Shroud latch K Main switch L Starter lever M Thumb warmer control knob N Grip warmer control knob O Tachometer P High beam indicator light Q Warning light R Speedometer S Self diagnosis warning indicator T Coolant temperature warning indicator U Oil level warning indicator V Fuel level warning indicator W Select reset button X Fuel meter Y Trip odometer ...

Page 18: ...can be removed only in this position 2 ON The ignition circuit is switched on The engine can be started NOTE The headlight meter lights and taillight will come on after the engine starts For SXV70ER 3 START The starting circuit is switched on The starter motor starts CAUTION Release the switch immediately after the engine starts È SXV70 É SXV70ER A B ...

Page 19: ...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 idle when it is released b WARNING Check the throttle brake and steering for proper operation before starting the engine ESU00023 Throttle override system T O R S If the carburetor or throttle cable should malfunction dur ing operation the T O...

Page 20: ... engine Be sure to use the specified spark plug and spark plug cap Otherwise the T O R S will not work properly CA 01E È Idle or starting É Run Ê Trouble 1 Carburetor switch 2 Throttle switch 3 Throttle cable 4 Throttle valve a On b Off A B C Mode Switch Idle or starting Run Trouble Throttle switch Off On Off Carburetor switch On Off Off Engine Run Run T O R S will operate A B C ...

Page 21: ... meter 3 turn on and off once then the warning light turns on again and then goes off if there are no prob lems Odometer and tripmeter modes Pushing the select reset button 4 switches the display between the odometer mode ODO and the tripmeter modes TRIP A and TRIP B in the following order ODO TRIP A TRIP B ODO To reset a tripmeter push the select reset button for at least one second while the tri...

Page 22: ...icator indicates a malfunction ing sensor disconnected coupler 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 See the table below for warning indicator warning light and fuel meter segment flash pattern When...

Page 23: ...ant level in the coolant reservoir See page 6 2 CAUTION Do not operate the engine if it overheats The coolant temperature warning indicator indicates a malfunctioning sensor disconnected coupler broken lead or short circuit when detected by the self diagnosis device of the snowmobile The coolant temperature warning indicator and warning light warn the rider of the above problems by flashing contin...

Page 24: ...cator and warning light flash patterns WARNING If the self diagnosis warning indicator and warn ing light flash continuously during operation there may be some problem with the electrical circuit lead couplers etc See page 5 8 for warn ing indicator and warning light flash pattern num bers 1 7 Stop the engine and allow it to cool off Then check that the wire harness couplers are con nected properl...

Page 25: ...sh continuously in this pattern 4 Warning indicator and warning light flash continuously in this pattern 5 Warning indicator and warning light flash continuously in this pattern 6 Warning indicator and warning light flash continuously in this pattern 7 Warning indicator and warning light flash continuously in this pattern On Off s Second 0 75 s 0 25 s 4 s 0 25 s 0 25 s 5 s 0 75 s 2 5 s 0 75 s 0 25...

Page 26: ...ver towards the handlebar grip to stop the snowmobile 1 Brake lever 2 Brake lever end 3 Handlebar end NOTE When the brake lever is operated the brake light will illu minate CAUTION 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 The brake lever is equipped with a position ...

Page 27: ... the snowmobile with the parking brake applied This may overheat the brake disc and reduce braking ability ESU00038 Drive select lever For SXV70ER The drive select lever is used to put the snowmobile into forward or reverse After coming to a complete stop push the drive select lever down and move it to the desired direction 1 Drive select lever 2 Push down 3 Move to FWD 4 Move to REV CA 02E CAUTIO...

Page 28: ...rols the electrically heated handlebar grips 1 Grip warmer control knob 2 OFF 3 ON CA 03E ESU00280 Thumb warmer control knob The thumb warmer control knob controls the electrically heated throttle lever 1 Thumb warmer control knob 2 OFF 3 ON CA 06E Knob position Grip warmer temperature Turn clockwise a Higher Turn counterclockwise b Lower Knob position Thumb warmer temperature Turn clockwise a Hig...

Page 29: ...shroud WARNING Do not drive the snowmobile with the shroud open unlatched or removed Keep your body and clothing away from rotating parts when servicing with the shroud open Do not touch the hot muffler and engine during or immediately after operation ESU00052 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 ...

Page 30: ...r heating knob The carburetor heating knob controls the flow of coolant through each carburetor body Make sure that the knob is in the ON position to heat the carburetors while the ambient temperature is below 0 C 32 F 1 Carburetor heating knob 2 ON 3 OFF CAUTION When operating the snowmobile above 0 C 32 F move the carburetor heating knob to the OFF posi tion since the carburetors do not need to ...

Page 31: ... MEMO ...

Page 32: ...ck 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 on its side or if the ambient tempera ture rises causing the fuel to warm up and expand Make sure that the fuel tank cap is closed securely after refueling Leaking fuel can catch fire 2 Fuel level CAUTION Oxygenat...

Page 33: ...imilar be careful not to mistake the caps ESU00086 Coolant 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 11 8 12 for more details 1 COLD LEVEL mark WARNING Do not remove the coolant reservoir cap when the engine is hot CAUTION Hard water or salt water is harm...

Page 34: ...ine up to clutch engagement 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 hold...

Page 35: ...cates 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 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 ...

Page 36: ... tic parts Never spill any brake fluid If any is spilled clean it up immediately ESU00094 V belt Open the shroud and remove the drive guard Check the V belt for wear and damage Replace if neces sary WARNING Make sure that the drive guard is tightened securely before operating the snowmobile Never run the engine without the V belt or with the drive guard removed ESU00096 Drive guard Check the drive...

Page 37: ... maladjusted Drive track damage or failure could result in loss of brak ing ability and snowmobile control which could cause an accident ESU00098 Slide runners Check the slide runners for wear and damage If the slide runners reach the wear limit they should be replaced 1 Slide runners a Wear limit CAUTION Ride on fresh snow frequently Operating on ice or hard packed snow will rapidly wear the slid...

Page 38: ...c This will wear or damage the skis ESU00103 Steering system Check the handlebar for excessive free play 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 noticed consult a Yamaha dealer ESU00105 Lights Check the lights Replace any burned out bulbs CAUTION Avoid using a scraper or hot water for cleaning the plastics le...

Page 39: ... air filter element If there is any snow on the air filter element take it out and remove the snow Then reinstall the air filter element beneath the holding guides on the case After riding the snowmobile make sure there is no snow on the air filter element NOTE The air filter element can be removed when the ambi ent temperature is 5 C 41 5 F or higher Before removing the air filter element consult...

Page 40: ...e tool kit spare parts and other necessary equipment with you while riding the snowmobile so that minor repairs can be done if neces sary The following should be carried in the storage com partment at all times Tool kit Flashlight Roll of plastic tape Steel wire Tow rope Emergency starter rope V belt Light bulbs Spark plugs When you start out for a long distance trip extra fuel and oil should be c...

Page 41: ...ting 3 Half open warm engine up 4 Closed warm engine starting NOTE The starter lever choke is not required when the engine is warm Put the starter lever choke in the closed posi tion Manual starting model For SXV70 2 Turn the main switch to the ON position 1 ON 3 Pull slowly on the recoil starter until it is engaged then pull it briskly After the engine starts put the starter lever choke in the ha...

Page 42: ...n 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 ESU00248 Emergency engine starting Manual starting model For SXV70 If the recoil starter system should fail take the emer gency starter rope and the screwdriver handle out of the tool kit and proceed as follows NOTE The emergency starter rope and a screwdr...

Page 43: ...he emergency starter rope around your hand 6 After the engine starts put the starter lever choke in the half open position Warm up the engine until it does not run roughly or begin to stall when the starter lever is returned to the closed position 7 Install the drive guard and shroud WARNING Avoid contact with the moving primary sheave assembly Electric starting model For SXV70ER Follow the proced...

Page 44: ...oid lugging the engine such as laborious opera tion in wet snow If any abnormal condition is noticed such as excessive vibration or noise consult a Yamaha dealer NOTE To ensure proper engine break in use a 50 1 gasoline oil mixture when filling the fuel tank of a new snowmobile for the first time For example 10 L of gasoline per 0 2 L of oil 1 gal of gasoline per 2 6 oz of oil equals a 50 1 mixing...

Page 45: ...cular attention to the safety information on pages 3 1 3 3 Please read all warning and caution labels on your snowmobile Also read the Snowmobiler s Safety Handbook that is supplied with your snowmobile Learning to ride your snowmobile Before you ride always perform the pre operation checks listed on pages 8 1 8 3 The short time spent checking the condition of the snowmobile will be rewarded with ...

Page 46: ...d increase the possibility of an accident Turning For most snow surfaces body English is the key to turning As you approach a curve slow down and begin to turn the handlebar in the desired direction 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 speed many times in a large flat area with n...

Page 47: ... which may be on the other side If you are unable to continue 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 Do not get on the downhill side of the snowmobile When the snowmobile is pointed downhill restart the engine release the parking brake and descend the hill WARNING Side hills an...

Page 48: ... 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 Ice or icy surface Operating on ice or icy surfaces can be very dangerous Tra...

Page 49: ...rack and slide runners little or no lubri cating 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 be subjected to damage or failure Also traction aids such as studs cleats etc may cause furt...

Page 50: ...erheating 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 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...

Page 51: ...ly the parking brake by moving the parking brake lever to the left For SXV70ER 1 Select the desirable operating position by moving the drive select lever 1 Push down 2 FWD Forward 3 REV Reverse WARNING Make sure that the throttle lever is fully released and the snowmobile is at a full stop before shift ing Be sure to move the drive select lever to forward or reverse until it stops completely while...

Page 52: ...stop the snowmobile 6 Apply the parking brake by moving the parking brake lever to the left ESU00137 Stopping the engine Turn the main switch to the OFF position to stop the engine 1 OFF È SXV70 É SXV70ER WARNING Push down the engine stop switch to stop the engine in an emergency Make sure that the key is removed from the main switch whenever the operator leaves the snow mobile to prevent accident...

Page 53: ... hydrostatic lock When possible the fuel tank should be empty during transportation especially if the trip will be longer than 30 minutes 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 in the shroud and also help protect the ...

Page 54: ...fuel hose for cracks or damage Replace if necessary Oil line Check oil hose for cracks or damage Replace if necessary Engine coolant Check coolant level 6 2 8 11 8 12 Air bleed the cooling system if necessary 8 11 Carburetor Check throttle lever operation 5 2 6 3 Adjust the jets Whenever operating condition elevation temperature is changed Y P V S Check operation Adjust if necessary 8 9 Recoil sta...

Page 55: ...ake installation Check for slight free play Lubricate shaft with specified grease as required Every 1 600 km 1 000 mi Drive chain oil Check oil level 8 16 8 17 Replace Drive chain Check deflection Adjust if necessary Initial at 500 km 300 mi and every 800 km 500 mi thereafter 8 17 Skis and ski runners Check for wear and damage 6 7 Replace if necessary Steering system Check operation 6 7 Adjust toe...

Page 56: ... bushings for wear for secondary Replace if necessary Lubricate with specified grease Steering column bearing Lubricate with specified grease 8 27 Ski and front suspension Lubricate with specified grease 8 27 Suspension component Lubricate with specified grease 8 27 Parking brake cable end and lever end throttle cable end Lubricate with specified grease 8 27 Check cable damage Replace if necessary...

Page 57: ...ug 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 co...

Page 58: ...e the electrode 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 ESU00145 Engine idle speed adjustment CAUTION Be sure to have a Yamaha dealer make this adjustment Make sure that the throttle lever moves smoothly Make sure that the carbure...

Page 59: ... 2 Adjuster 3 Tighten the locknut ESU00149 Oil pump cable adjustment CAUTION Be sure to adjust the throttle cable first 1 Loosen the locknut 2 Pull the oil pump outer cable and adjust the free play between the adjuster and outer cable by turning the adjuster in or out 1 Locknut 2 Adjuster 3 Tighten the locknut Throttle lever free play a 1 0 2 0 mm 0 04 0 08 in Pump cable free play a 20 5 1 mm 0 81...

Page 60: ...ation changes use of alcohol oxygenated fuels etc and should be set by a Yamaha dealer CAUTION The drive chain gears and V belt clutch should be adjusted when operating over a high altitude of 900 m 3 000 ft Consult a Yamaha dealer Pilot screw adjustment Turn the pilot screw in or out to adjust low speed tuning CD 02E Standard pilot screw position 1 7 8 turns out from the seated position Pilot scr...

Page 61: ...rburetor 3 Assemble by reversing the removal steps Main jet replacement Replace the main jet according to the setting chart which is available at a Yamaha dealer WARNING Never remove the drain plug or the float chamber while the engine is hot Fuel will flow out from the float chamber which could ignite and cause injury Place a rag under the carburetor before removing the drain plug or float chambe...

Page 62: ...Valve System Y P V S The Y P V S is a vital part of the engine and requires very sophisticated adjustment Adjustment should be left to a Yamaha dealer who has the professional knowledge specialized data and equip ment to do so properly 1 Y P V S CAUTION The Y P V S has been extensively tested and set at the Yamaha factory Changing these settings without sufficient technical knowledge may result in...

Page 63: ...amaha dealer carefully Proper carburetion adjustments will correct the air fuel ratio Remember less air at higher altitude means there is less horsepower available even with proper carburetion Expect acceleration and top speed to be reduced at higher altitudes To overcome operating with less power at high altitudes your snowmobile may also require different settings for the drive chain gears and V...

Page 64: ...cap slowly rotate the cap counterclockwise to the detent This pro cedure allows any residual pressure to escape When the hissing sound has stopped press down on the cap while turning counterclockwise and remove it The cooling system must be bled of air if the coolant reservoir becomes empty if air can be seen in the cooling system or if there is a cooling system leak Consult a Yamaha dealer CAUTIO...

Page 65: ...t level does not go down and then stop the engine 3 Fill the coolant reservoir with coolant to the COLD LEVEL mark 4 Install the coolant reservoir cap Check for any cool ant leakage NOTE If you find any leaks consult a Yamaha dealer Recommended coolant High quality ethylene glycol antifreeze containing corrosion inhibitors Coolant and water mixed ratio 60 40 Total amount 4 5 L 3 96 Imp qt 4 76 US ...

Page 66: ...ng bolt Have a Yamaha dealer make this adjustment CAUTION As the V belt wears adjustment may be necessary To ensure proper clutch performance the V belt position should be adjusted by adding a spacer on each adjusting bolt when the V belt position reaches 1 5 mm 0 06 in below the edge Have a Yamaha dealer make this adjustment CD 05E NOTE Apply the parking brake before replacing the V belt 1 Remove...

Page 67: ...position is incorrect adjust the V belt position by removing or adding a spacer 4 on each adjusting bolt 5 CD 06E 7 Tighten each adjusting bolt Standard V belt position a From 1 5 mm 0 06 in above the edge of the second ary sheave to 0 5 mm 0 02 in below the edge V belt position Adjustment More than 1 5 mm 0 06 in above the edge Remove spacer From 1 5 mm 0 06 in above the edge to 0 5 mm 0 02 in be...

Page 68: ...ondary sliding sheave clockwise 6 and push 7 it so that it separates from the secondary fixed sheave 10 Install the V belt 8 between the secondary sliding and secondary fixed sheaves 11 Install the drive guard WARNING Never run the engine with the V belt or drive guard removed ...

Page 69: ...used to remove any metal particles that may accumulate in the drive chain housing When remov ing the dipstick be sure to Pull it out slowly and gently so the metal particles do not fall off the magnet back into the drive chain housing Wipe off the magnet before reinserting the dip stick into the drive chain housing 3 Pull up the dipstick and check that the oil is between the upper and lower levels...

Page 70: ...chain adjuster locknut 1 Locknut 2 Adjuster bolt ESU00174 Checking the brake pads Check the brake pads for wear If the brake pads reach the wear limit ask a Yamaha dealer to replace them 1 Brake pad wear indicator ESU00179 Checking the parking brake pads 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 t...

Page 71: ...ut ESU00180 Checking the brake fluid level Place the snowmobile on a level surface Check that the brake fluid is above the lower level and replenish when necessary 1 Lower level WARNING Be careful that water does not enter the master cylin der when refilling Water will significantly lower the boiling point of the fluid and may result in vapor lock If the brake fluid level goes down consult a Yamah...

Page 72: ... 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 greater rider comfort while a harder setting may allow more precise handling and control over certain types of terrain or riding conditions WARNING Be sure to have a...

Page 73: ...ogen 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 absorber by yourself Take the unit to a Yamaha dealer Spr...

Page 74: ...ized 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 sources 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 ...

Page 75: ...urn while holding the adjusting bolt 2 securely with a wrench so it does not move CAUTION Never allow the adjusting bolt 2 to move while loos ening the nut 2 Turn the adjusting bolt 2 to the desired position CAUTION Make sure that the adjusting bolt ends are set at the same position on each side 3 While holding the adjusting bolt securely tighten the full rate adjusting nut 1 CAUTION Never allow t...

Page 76: ...ION When using the two 22 mm wrenches included in the tool kit make sure that they are situated at a right angle to the control rod as shown and that they are tightly fitted to the locknut and the control rod adjust ing nut The left and right adjusting nuts must be set to the same position Uneven settings can cause poor han dling and loss of stability WARNING Never adjust the control rods beyond t...

Page 77: ...place 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 Never install studs cleats closer than 76 mm 3 in from the edge of the track Drive track deflection measurement 1 Lay ...

Page 78: ...rt the engine and rotate the drive track one or two turns Stop the engine 4 Check the drive track alignment with the slide runners 3 If the alignment is incorrect align the drive track by turning the left and right adjusters CD 08E 8 Slide runners 9 Drive track 0 Slide metal a Gap b Forward 5 Adjust the drive track deflection to specification CD 09E 6 7 Drive track alignment 6 Shifted to right 7 S...

Page 79: ...ent is achieved 7 Tighten the rear axle nut ESU00200 Ski alignment 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 ...

Page 80: ...le ends WARNING Apply a dab of grease onto the cable end only Do not grease the brake or throttle cables themselves because they could become frozen which could cause loss of control 2 Steering 3 Front suspension 4 Rear suspension 2 2 3 Lubricant Low temperature grease 3 4 ...

Page 81: ...ucts or your hands away from the hot bulb until it cools down 6 Install the new bulb CAUTION Keep oil or your hands away from the glass part of the bulb or its life and illumination will be affected If the glass is oil stained thoroughly clean it with a cloth moistened with alcohol or lacquer thinner ESU00293 Headlight beam adjustment 1 Turn the headlight beam adjuster 1 in or out to adjust the he...

Page 82: ...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 physician immediately EYES Flush with water for 15 minutes and get prompt medical attention Batteries produce explosive gases Keep spark...

Page 83: ...sure that the main switch is turned off to pre vent accidental short circuiting 1 Lift up the shroud 2 Replace the blown fuse with one of proper amperage NOTE If the fuse immediately blows again ask a Yamaha dealer to inspect the snowmobile 5 Spare fuses 20 A 10 A 6 Spare main fuse Specified fuses 1 Main fuse 30A 2 HEAD fuse 20A 3 TAIL fuse 10A 4 IGNITION fuse 10 A ...

Page 84: ...g the T O R S make sure that the throttle returns prop erly 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 For SXV70 Short circuit in the lighting system sig nal system and meter system except for the ignition system Disconnect the relay with the white coupler not the black coupler to...

Page 85: ...t coolant Add coolant 2 Air in cooling system Bleed air or ask a Yamaha dealer to inspect 3 Leaking coolant Ask a Yamaha dealer to inspect G Snowmobile does not move 1 Malfunctioning V belt clutch Ask a Yamaha dealer to inspect 2 Drive track does not move Foreign object is caught in the drive track or slide runners have melted to the slide metal due to lack of lubrication 3 Tight loose or broken d...

Page 86: ...tch components Ask a Yamaha dealer to inspect 2 Worn or damaged bearings Ask a Yamaha dealer to inspect 3 Worn or damaged V belt with flat spots Replace 4 Worn or damaged idler wheels or shafts Ask a Yamaha dealer to inspect 5 Worn or damaged drive track Ask a Yamaha dealer to inspect ...

Page 87: ...reas where oxygenated fuel gasohol is used because the alcohol content in the fuel increases the chance for water to enter the engine Use Yamaha Stor Rite Fogging Oil or an equivalent fog ging oil to protect both the combustion chamber and crankshaft from corrosion An alternate method is to remove the car buretor silencer and squirt oil into the car buretor throats while the engine is running CAUT...

Page 88: ...e in a dry well venti lated place out of direct 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 reinstall the V belt and adjust the drive track Install the batte...

Page 89: ...8 lb SXV70ER Ski tread 1 070 mm 42 1 in SXV70 SXV70ER Type Liquid cooled 2 stroke 7 port Cylinder arrangement Parallel 3 cylinder Displacement 696 cm3 Bore Stroke 69 0 62 0 mm 2 72 2 44 in Idle speed 1 800 100 r min Engine oil type YAMALUBE 2 cycle oil Carburetor type MIKUNI TM33 3 Fuel Unleaded gasoline Pump octane 88 or higher Starting system Manual with recoil starter SXV70 Electric and manual ...

Page 90: ...Primary sheave bolt center to sec ondary sheave bolt center Approx 269 5 mm 10 61 in Sheave offset Secondary sheave Front side Approx 14 mm 0 55 in SXV70 Approx 19 mm 0 75 in SXV70ER Rear side Approx 12 mm 0 47 in SXV70 Approx 17 mm 0 67 in SXV70ER Engagement speed Approx 3 900 r min Shift speed Approx 8 400 r min Drive chain Silent chain enclosed in oil bath Reduction ratio 38 22 1 73 Fuel tank T...

Page 91: ...Gap 0 7 0 8 mm 0 028 0 031 in Battery Capacity GM18Z 3A 12 V 20A h SXV70ER Maximum charge rate 2 0 Amperes hr for 10 hrs SXV70ER Headlight Bulb Quantity 12 V 60 55 W 2 Tail brake light Bulb Quantity 12 V 5 21 W 2 Meter light Bulb Quantity 14 V 50 mA 6 Indicator light Bulb Quantity 14 V 80 mA 2 ...

Page 92: ... O Gy BLACK BLACK B WIRE HARNESS HEADLIGHT SUB WIRE HARNESS C WIRE HARNESS SUB WIRE HARNESS 1 B O B L R G Y L R B G Y BLACK BLACK BLACK BLACK G WIRE HARNESS SUB WIRE HARNESS 3 R R W B R W R B BLACK BLACK H WIRE HARNESS WIRE HARNESS L L R L W L R R Y È É F SUB WIRE HARNESS 1 TAIL BRAKE LIGHT SUB WIRE HARNESS L R B G Y B O B L R G Y BLACK BLACK D WIRE HARNESS SUB WIRE HARNESS 2 G Y R Y Gy B Gy B R Y...

Page 93: ...indicator light V Warning light W Multi function meter X Meter light Y Tachometer Z Meter assembly Headlight Headlight relay with the black coupler Headlight beam switch _ IGNITION fuse SXV70ER a TAIL fuse SXV70ER b HEAD fuse SXV70ER c Load control relay with the white cou pler È SXV70 É SXV70 Ê SXV70ER COLOR CODE B Black Br Brown Ch Chocolate G Green Gy Gray L Blue Lg Light green O Orange P Pink ...

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