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  4. WOLVERINE YFM350FXS
  5. Owner's Manual

Yamaha WOLVERINE YFM350FXS Owner's Manual - Warning

Summary of WOLVERINE YFM350FXS

  • Page 1

    4kb-28199-1e lit-11626-17-03 read this manual carefully! It contains important safety information. This atv should not be ridden by anyone under 16 years of age. Warning yfm350fxs owner’s manual printed in japan 2003.03-0.7 ×1 cr (e) printed on recycled paper yamaha motor co., ltd. Ebu00438 locate a...

  • Page 2

    Ebu00776.

  • Page 3: Introduction

    Ebu00941 1- introduction congratulations on your purchase of the yamaha yfm350fx. It represents the result of many years of yamaha experience in the production of fine sporting, touring, and pace-setting racing machines. With the purchase of this yamaha, you can now appreciate the high degree of cra...

  • Page 4: Important Manual Information

    Ebu00801 1- important manual information failure to follow the warnings contained in this manual can result in serious injury or death. Particularly important information is distinguished in this manual by the following notations: the safety alert symbol means attention! Become alert! Your safety is...

  • Page 5: Important Notice

    Ebu00011 important notice this machine is designed and manufactured for off-road use only. It is illegal and unsafe to operate this machine on any public street, road or highway. This machine complies with all applicable off-road noise level and spark arrester laws and regulations in effect at the t...

  • Page 6: Warning

    Ebu00014 warning indicates a potential hazard that could result in serious injury or death. Contents location of the warning and specification labels....... 1-1 safety information.................. 2-1 description and machine identification ............................. 3-1 identification number rec...

  • Page 7

    Pre-operation checks ........... 5-1 front and rear brakes ..................... 5-3 fuel ................................................. 5-4 engine oil ........................................ 5-6 final gear oil.................................... 5-7 differential gear oil ..........................

  • Page 8

    Periodic maintenance and adjustment.................................. 8-1 owner’s manual and tool kit............ 8-1 periodic maintenance/ lubrication ...................................... 8-3 engine oil......................................... 8-5 final gear oil .....................................

  • Page 9

    Specifications.......................... 10-1 noise regulation.................... 11-1 maintenance record ............ 12-1 atv limited warranty............ 13-1 yamaha extended service (y.E.S.) ........................................... 14-1 10 11 12 13 14 u4kb1e.Book page 4 wednesday, march 5, 2...

  • Page 10: Location of The Warning and

    1-1 ebu00464 location of the warning and specification labels read and understand all of the labels on your machine. They contain important information for safe and proper operation of your atv. Never remove any labels from your atv. If a label becomes difficult to read or comes off, a replacement l...

  • Page 11: Warning

    1-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 warning 4kb-21696-21 improper tire pressure or overloading can cause loss of control. Loss of control can result in severe injury or death. Operating tire pressure : set with tires cold • recommended : front : 25 kpa, { 0.25 kgf/cm 2 }, 3.6 psi rear : 25 kp...

  • Page 12: Under

    1-3 4 under warning 5fe-21697-01 never operate this atv if you are under age 16. Operating this atv if you are under the age of 16 increases your chance of severe injury or death. U4kb1e.Book page 3 wednesday, march 5, 2003 2:29 pm.

  • Page 13: Safety Information

    2-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 safety information ebu00924 an atv is not a toy and can be hazardous to operate. An atv handles differently from other vehicles including motorcycles and cars. A collision or rollover can occur quickly, even during routine maneuvers such as turning and riding on ...

  • Page 14

    2-2 ● always avoid operating an atv on any paved surfaces, including sidewalks, driveways, park- ing lots and streets. ● never operate an atv on any public street, road or highway, even a dirt or gravel one. ● never operate an atv without wearing an approved motorcycle helmet that fits properly. You...

  • Page 15

    2-3 ● always follow proper procedures for turning as described in this manual. Practice turning at low speeds before attempting to turn at faster speeds. Do not turn at excessive speed. ● never operate the atv on hills too steep for the atv or for your abilities. Practice on smaller hills before att...

  • Page 16

    2-4 ● always use proper procedures if you stall or roll backwards when climbing a hill. To avoid stall- ing, use proper gear and maintain a steady speed when climbing a hill. If you stall or roll back- wards, follow the special procedure for braking described in this manual. Dismount on the uphill s...

  • Page 17

    2-5 ● always use the size and type tires specified in this manual. ● always maintain proper tire pressure as described in this manual. ● never modify an atv through improper installation or use of accessories. ● never exceed the stated load capacity for an atv. Cargo should be properly distributed a...

  • Page 18: Warning

    2-6 warning potential hazard improper handling of gasoline. What can happen gasoline can catch fire and you could be burned. How to avoid the hazard always turn off the engine when refuel- ing. Do not refuel right after the engine has been running and is still very hot. Do not spill gasoline on the ...

  • Page 19: Warning

    2-7 warning potential hazard starting or running the engine in a closed area. What can happen exhaust fumes are poisonous and may cause loss of consciousness and death within a short time. How to avoid the hazard always operate your atv in an area with adequate ventilation. U4kb1e.Book page 7 wednes...

  • Page 20

    3-1 ebu00032 description and machine identification 1. Spark arrester 2. Battery 3. Rear brake light switch 4. Headlight 5. Rear brake pedal 6. Fuel cock 7. Starter (choke) 8. Seat lock lever 9. Storage box 10. Tail/brake light 11. Recoil starter 12. Shift pedal 13. Rear brake lever 14. Parking brak...

  • Page 21

    3-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ebu00600 identification number records record the key identification number, vehicle identification number and model label infor- mation in the spaces provided for assistance when ordering spare parts from a yamaha dealer or for reference in case the vehicle is s...

  • Page 22

    3-3 ebu00036 vehicle identification number the vehicle identification number is stamped into the frame. 1. Vehicle identification number note: the vehicle identification number is used to identify your machine. Ebu00787 model label the model label is affixed to the location in the illustration. Reco...

  • Page 23: Control Functions

    4-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ebu00039 control functions warning indicates a potential hazard that could result in serious injury or death. Ebu09420 main switch functions of the respective switch positions are as follows: on: the engine can be started only at this position and the headlights ...

  • Page 24: Caution:

    4-2 ebu00802 indicator and warning lights 1. Reverse indicator light “r” 2. Neutral indicator light “n” 3. Oil temperature warning light “ ” ebu00602 reverse indicator light “r” this indicator light comes on when the trans- mission is in reverse. Ebu00603 neutral indicator light “n” this indicator l...

  • Page 25

    4-3 ebu00733 oil temperature warning light checking method acb-10e turn the main switch to “on” and the engine stop switch to “run”. Oil temperature warning light does not come on. Oil temperature warning light comes on. Check engine oil temperature. Oil temperature warning light does not come on. E...

  • Page 26: Caution:

    4-4 ebu00053 handlebar switches 1. Light switch “lights” 2. Engine stop switch “eng. Stop” 3. Start switch “start” ebu11580 engine stop switch “eng. Stop” make sure that the engine stop switch is in the “run” position before starting the engine. The engine stop switch controls ignition and can be us...

  • Page 27: Warning

    4-5 ebu00062 throttle lever once the engine is running, movement of the throttle lever will increase the engine speed. Regulate the speed of the machine by varying the throttle position. Because the throttle is spring-loaded, the machine will decelerate, and the engine will return to an idle any tim...

  • Page 28: Warning

    4-6 ebu11590 speed limiter the speed limiter keeps the throttle from fully opening, even when the throttle lever is pushed to the maximum. Turning in the ad- justing screw limits the maximum engine pow- er available and decreases the maximum speed of the atv. 1. Locknut 2. Adjusting screw a. 12 mm (...

  • Page 29

    4-7 ebu00070 front brake lever the front brake lever is located on the right handlebar. Pull it toward the handlebar to ap- ply the front brake. 1. Front brake lever ebu00073 rear brake pedal and lever the brake pedal is located on the right side of the machine and the brake lever is located on the ...

  • Page 30

    4-8 ebu00078 parking brake use the parking brake when you have to start the engine or park the machine, especially on a slope. Apply the rear brake lever while pushing the button, then push in the lock plate to apply the parking brake. Squeeze the rear brake lever to release the parking brake. Note:...

  • Page 31: Warning

    4-9 1. Locked position warning potential hazard improper use of the parking brake. What can happen the atv could start moving unexpect- edly if the parking brake is not applied before starting the engine. This could cause loss of control or a collision. The brake could overheat if you ride the atv w...

  • Page 32

    4-10 ebu00084 shift pedal this machine is equipped with a constant- mesh 5-speed forward and 1-speed reverse transmission. The shift pedal is located on the left side of the engine. Reverse is at the bot- tom position. Neutral is one position above re- verse. 1. Shift pedal n. Neutral position r. Re...

  • Page 33: Warning

    4-11 ebu00590 recoil starter firmly grasp the handle and pull slightly until engagement can be felt. Then pull forcefully, being careful not to pull the rope all the way out. 1. Recoil starter warning potential hazard starting the engine in gear and/or start- ing the engine without setting the park-...

  • Page 34

    4-12 ebu00092 fuel tank cap remove the fuel tank cap by turning it coun- terclockwise. 1. Fuel tank cap ebu00093 fuel cock the fuel cock supplies fuel from the fuel tank to the carburetor. The fuel cock has three positions. Off: with the lever in this position fuel will not flow. Always turn the lev...

  • Page 35

    4-13 ebu00094 starter (choke) starting a cold engine requires a richer air-fuel mixture. A separate starter circuit supplies this mixture. Move in direction a to turn on the starter (choke). Move in direction b to turn off the starter (choke). Refer to “starting a cold engine” for proper op- eration...

  • Page 36

    4-14 ebu00567 seat to remove the seat, pull the seat lock lever upward and pull up the seat at the rear. 1. Seat lock lever to install the seat, insert the projections on the front of the seat into the seat holders and push down on the seat at the rear. Note: make sure that the seat is securely fitt...

  • Page 37: Caution:

    4-15 ebu00581 storage box caution: to protect from damage, do not put metal products, like tools or sharply edged prod- ucts directly in the storage box. If they must be stored, wrap them in appropriate cushion material. Maximum load limit: 2 kg (4.4 lb) u4kb1e.Book page 15 wednesday, march 5, 2003 ...

  • Page 38

    4-16 ebu01104 front shock absorber adjustment the spring preload can be adjusted to suit the rider’s weight and riding conditions. Adjust the spring preload as follows. To increase the spring preload, turn the ad- justing ring in direction a. To decrease the spring preload, turn the ad- justing ring...

  • Page 39: Warning

    4-17 warning potential hazard improper shock absorber adjustment. What can happen uneven adjustment can cause poor handling and loss of stability, which could lead to an accident. How to avoid the hazard always adjust the shock absorbers on the left and right side to the same set- ting. U4kb1e.Book ...

  • Page 40: Warning

    4-18 ebu01103 rear shock absorber adjustment the spring preload can be adjusted to suit the rider’s weight and riding conditions. Adjust the spring preload as follows: to increase the spring preload, turn the ad- justing ring in direction a. To decrease the spring preload, turn the ad- justing ring ...

  • Page 41: Pre-Operation Checks

    5-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pre-operation checks before using this machine, check the following points: item routine page brakes • check operation, free play, fluid level and fluid leakage. • fill with dot 4 brake fluid if necessary. 5-2–5-3, 8-23–8-28 parking brake • check operation, condi...

  • Page 42: Warning

    5-2 ebu00854 front and rear brakes brake levers and brake pedal check for correct free play in the brake levers and brake pedal. If the free play is incorrect, adjust it. (see pages 8-25–8-28.) check the operation of the brake levers and brake pedal. They should move smoothly and there should be a f...

  • Page 43: Warning

    5-3 brake fluid leakage check to see if any brake fluid is leaking out of the pipe joints or master cylinder. Apply the brakes firmly for one minute. If there is any leaking, have the machine inspected by a yamaha dealer. Brake operation test the brakes at slow speed after starting out to make sure ...

  • Page 44: Caution:

    5-4 ebu01085 fuel make sure there is sufficient gasoline in the tank. Caution: _ use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the exhaust system. _ your yamaha engine has been designed to ...

  • Page 45: Warning

    5-5 gasohol there are two types of gasohol; gasohol con- taining ethanol and that containing methanol. Gasohol containing ethanol can be used if ethanol content does not exceed 10%. Gaso- hol containing methanol is not recommended by yamaha because it may cause fuel system damage or vehicle performa...

  • Page 46: Caution:

    5-6 ebu01084 engine oil make sure the engine oil is at the specified level. Add oil as necessary. (see page 8-5.) caution: _ ● in order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical additives. Do not use oils with a diesel specification of “cd”...

  • Page 47

    5-7 ebu00493 final gear oil make sure the final gear oil is at the specified level. Add oil as necessary. (see pages 8-9– 8-11 for details.) if desired, an sae 80w90 hypoid gear oil may be used for all conditions. Note: gl-4 is a quality and additive rating, gl-5 or gl-6 rated hypoid gear oils may a...

  • Page 48: Warning

    5-8 ebu10030 lights check the headlights and tail/brake light to make sure they are in working condition. Re- pair as necessary for proper operation. Ebu11700 switches check the operation of all switches. Have a yamaha dealer repair as necessary for proper operation. Ebu00499 battery check fluid lev...

  • Page 49

    5-9 2. The tires should be set to the rec- ommended pressure: ● recommended tire pressure front 25 kpa (0.25 kgf/cm 2 , 3.6 psi) rear 25 kpa (0.25 kgf/cm 2 , 3.6 psi) ● check and adjust tire pressures when the tires are cold. ● tire pressures must be equal on both sides. 3. Tire pressure below the m...

  • Page 50

    5-10 ebu00159 how to measure tire pressure use the low-pressure tire gauge. Note: the low-pressure tire gauge is included as standard equipment. Make two measure- ments of the tire pressure and use the second reading. Dust or dirt in the gauge could cause the first reading to be incorrect. Set press...

  • Page 51

    5-11 ebu00160 tire wear limit when the tire groove decreases to 3 mm (0.12 in) due to wear, replace the tire. A. Tire wear limit u4kb1e.Book page 11 wednesday, march 5, 2003 2:29 pm.

  • Page 52: Operation

    6-1 ebu00161 operation warning indicates a potential hazard that could result in serious injury or death. Ebu00502 starting a cold engine 1. Set the parking brake. 2. Turn the fuel cock to “on”. 3. Turn the main switch to “on” and the en- gine stop switch to “run”. 4. Shift the transmission into neu...

  • Page 53

    6-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 note: ● when the transmission is in neutral, the neutral indicator light should come on. If the light does not come on, ask a yamaha dealer to inspect it. ● the engine can be started in any gear if the rear brake lever is applied. However, it is recommended to sh...

  • Page 54: Caution:

    6-3 note: ● if the engine fails to start, release the start switch, then push the start switch again. Pause a few seconds before the next attempt. Each cranking should be as short as possible to preserve battery en- ergy. Do not crank the engine more than 10 seconds on each attempt. ● if the battery...

  • Page 55: Caution:

    6-4 ebu00195 reverse knob operation and reverse driving caution: before shifting, stop the machine and re- turn the throttle lever to its closed posi- tion. Otherwise the transmission may be damaged. 1. Bring the machine to a complete stop and return the throttle lever to the closed position with th...

  • Page 56: Caution:

    6-5 ebu12950 shifting this model has a 5-speed forward and 1-speed reverse transmission with centrifugal automatic clutch. The transmission allows you to control the amount of power you have avail- able at a given speed or for starting, acceler- ating, climbing hills, etc. To shift into neutral, ret...

  • Page 57: Caution:

    6-6 ebu00205 to start out and accelerate: 1. Release the throttle lever. Caution: always close the throttle while shifting gears. Otherwise, damage to the engine and drive train may result. 2. Shift into first gear and release the shift pedal. 3. Open the throttle gradually. 4. Once the machine has ...

  • Page 58: Warning

    6-7 ebu00207 to decelerate: when slowing down or stopping, release the throttle and apply the brakes smoothly and evenly. As you slow down, shift to a lower gear. Be sure that the engine has sufficiently slowed before engaging a lower gear. Improp- er use of the brakes or shifting can cause the tire...

  • Page 59

    6-8 each full throttle acceleration sequence should be followed with a substantial rest pe- riod for the engine by cruising at lower r/min so the engine can rid itself of the temporary build up of heat. If any abnormality is noticed during this peri- od, consult a yamaha dealer. 1. 0–10 hours: avoid...

  • Page 60: Warning

    6-9 ebu12960 parking on a slope 1. Bring the atv to a stop by applying the brakes in low gear. 2. Stop the engine. 3. With the rear brake lever and pedal ap- plied, apply the parking brake and slowly release the brake pedal. Warning potential hazard parking on a hill or other incline. What can happe...

  • Page 61

    6-10 ebu00221 accessories and loading ebu00222 accessories accessories can affect the handling and con- trol of your atv. Keep the following in mind when considering an accessory or operating an atv which has accessories. ● choose only accessories designed for your atv. Your yamaha dealer has a vari...

  • Page 62

    6-11 ebu05840 loading as originally equipped, this atv is not de- signed to carry cargo or tow a trailer. If you choose to add accessories so that you can carry cargo or tow a trailer, you must use common sense and good judgment. Keep the following points in mind: ● never exceed the weight limits sh...

  • Page 63: Warning

    6-12 warning potential hazard overloading this atv or carrying or tow- ing cargo improperly. What can happen could cause changes in vehicle han- dling which could lead to an accident. How to avoid the hazard never exceed the stated load capacity for this atv. Cargo should be properly distributed and...

  • Page 64: Warning

    6-13 ebu13471 warning _ indicates a potential hazard that could result in serious injury or death. U4kb1e.Book page 13 wednesday, march 5, 2003 2:29 pm.

  • Page 65: Riding

    7-1 7 1- riding your atv u4kb1e.Book page 1 wednesday, march 5, 2003 2:29 pm.

  • Page 66

    7-2 u4kb1e.Book page 2 wednesday, march 5, 2003 2:29 pm.

  • Page 67: Warning

    7-3 warning _ indicates a potential hazard that could result in serious injury or death. Getting to know your atv this atv is mainly for recreation, but may also be used for utility use. This section, riding your atv, provides general atv riding instructions for recreational riding. The skills and t...

  • Page 68: Warning

    7-4 ride with care and good judgement get training if you are inexperienced. Beginners should get training from a certified instructor. Become familiar with this atv at slow speeds first, even if you are an experienced operator. Do not attempt to operate at maximum perfor- mance until you are totall...

  • Page 69: Warning

    7-5 not recommended for children under 16 years of age. Warning potential hazard failure to follow the age recommenda- tions for this atv. What can happen use by children of atvs that are not rec- ommended for their age can lead to se- vere injury or death of the child. How to avoid the hazard a chi...

  • Page 70: Warning

    7-6 this atv is designed to carry operator and cargo only - passengers prohibited. Warning potential hazard carrying a passenger on this atv. What can happen greatly reduces your ability to balance and control this atv. Could cause an accident, resulting in harm to you and/ or your passenger. How to...

  • Page 71: Warning

    7-7 apparel warning potential hazard operating this atv without wearing an approved motorcycle helmet, eye pro- tection and protective clothing. What can happen operating without an approved motor- cycle helmet in- creases your chances of a severe head injury or death in the event of an accident. Op...

  • Page 72: Warning

    7-8 do not operate after consuming alcohol or drugs. Operator’s performance capability is reduced by the influence of alcohol or drugs. Warning potential hazard operating this atv after consuming al- cohol or drugs. What can happen could seriously affect your judgment. Could cause you to react more ...

  • Page 73: Warning

    7-9 pre-operation checks always perform the pre-operation checks list- ed on page 5-1 before riding for safety and proper care of the atv. Warning potential hazard failure to inspect the atv before oper- ating. Failure to properly maintain the atv. What can happen increases the possibility of an acc...

  • Page 74: Warning

    7-10 warning _ indicates a potential hazard that could result in serious injury or death. Do not operate at speeds too fast for your skills or the conditions. Speed limiter for riders inexperienced with this model, this model is equipped with a speed limiter in the throttle lever housing. The speed ...

  • Page 75: Warning

    7-11 loading and accessories use extra caution when riding the atv with additional loads, such as accessories or car- go. The atv’s handling may be adversely af- fected. Reduce your speed when adding additional loads. Maximum loading limit ● vehicle loading limit (total weight of cargo, rider and ac...

  • Page 76: Warning

    7-12 during operation always keep your feet on the footboards dur- ing operation. Otherwise your feet may con- tact the rear wheels. Warning potential hazard removing hands from handlebars or feet from footboards during operation. What can happen removing even one hand or foot can re- duce your abil...

  • Page 77: Warning

    7-13 avoid wheelies and jumping. You may lose control of the atv or overturn. Warning potential hazard attempting wheelies, jumps, and other stunts. What can happen increases the chance of an accident, in- cluding an overturn. How to avoid the hazard never attempt stunts, such as wheelies or jumps. ...

  • Page 78: Warning

    7-14 modifications warning potential hazard operating this atv with improper modi- fications. What can happen improper installation of accessories or modification of this vehicle may cause changes in handling which in some situ- ations could lead to an accident. How to avoid the hazard never modify ...

  • Page 79: Warning

    7-15 exhaust system the exhaust system on the atv is very hot during and following operation. To prevent burns, avoid touching the exhaust system. Park the atv in a place where pedestrians or children are not likely to touch it. Warning potential hazard hot exhaust system. What can happen dry grass ...

  • Page 80: Warning

    7-16 be careful where you ride this atv is designed for off-road use only. Riding on paved surfaces can cause loss of control. Warning potential hazard operating this atv on paved surfaces. What can happen atvs are designed for off-road use only. Paved surfaces may seriously affect handling and cont...

  • Page 81: Warning

    7-17 do not ride on any public road, street or high- way. Riding on public roads can result in collisions with other vehicles. Warning potential hazard operating this atv on public streets, roads or highways. What can happen you can collide with another vehicle. How to avoid the hazard never operate...

  • Page 82: Warning

    7-18 know the terrain where you ride. Ride cau- tiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and oth- er hidden hazards which may cause the atv to upset. Warning potential hazard failure to use extra care when operating this atv on unfamiliar terrain. What can h...

  • Page 83: Warning

    7-19 warning potential hazard failure to use extra care when operating on excessively rough, slippery or loose terrain. What can happen could cause loss of traction or vehicle control, which could result in an acci- dent, including an overturn. How to avoid the hazard do not operate on excessively r...

  • Page 84: Warning

    7-20 when riding in an area where you might not easily be seen, such as desert terrain, mount a caution flag on the atv. Do not use the flag pole bracket as a trailer hitch. Do not ride in areas posted “no trespassing”. Do not ride on private property without getting permission. Warning potential ha...

  • Page 85

    7-21 select a large, flat area off-road to become fa- miliar with your atv. Make sure that this area is free of obstacles and other riders. You should practice control of the throttle, brakes, shifting procedures, and turning techniques in this area before trying more difficult terrain. Al- ways avo...

  • Page 86: Caution:

    7-22 caution: _ do not shift gears without releasing the throttle. Damage to the engine or drive train may occur. _ when slowing down or stopping, release the throttle and apply the brakes smoothly and evenly. As you slow down, shift to a lower gear. Be sure that the engine has sufficiently slowed b...

  • Page 87: Warning

    7-23 turning your atv to achieve maximum traction while riding off- road, the two rear wheels are mounted solidly on one axle and turn together at the same speed. Therefore, unless the wheel on the in- side of the turn is allowed to slip or lose some traction, the atv will resist turning. A special ...

  • Page 88

    7-24 this procedure should be practiced at slow speed many times in a large off-road area with no obstacles. If an incorrect technique is used, your atv may continue to go straight. If the atv doesn’t turn, come to a stop and then practice the procedure again. If the riding sur- face is slippery or ...

  • Page 89: Warning

    7-25 climbing uphill use proper riding techniques to avoid vehicle overturns on hills. Be sure that you can ma- neuver your atv well on flat ground before at- tempting any incline and then practice riding first on gentle slopes. Try more difficult climbs only after you have developed your skill. In ...

  • Page 90: Warning

    7-26 warning potential hazard climbing hills improperly. What can happen could cause loss of control or cause the atv to overturn. How to avoid the hazard always follow proper procedures for climbing hills as described in this own- er’s manual. Always check the terrain carefully be- fore you start u...

  • Page 91: Warning

    7-27 if you are climbing a hill and you find that you have not properly judged your ability to make it to the top, you should turn the atv around while you still have forward motion (provided you have the room to do so) and go down the hill. Warning potential hazard improperly crossing hills or turn...

  • Page 92: Warning

    7-28 if your atv has stalled or stopped and you believe you can continue up the hill, restart carefully to make sure you do not lift the front wheels which could cause you to lose control. If you are unable to continue up the hill, dis- mount the atv on the uphill side. Physically turn the atv aroun...

  • Page 93

    7-29 dismount on uphill side or to a side if pointed straight uphill. Turn the atv around and remount, following the pro- cedure described in the owner’s manu- al. U4kb1e.Book page 29 wednesday, march 5, 2003 2:29 pm.

  • Page 94: Warning

    7-30 riding downhill when riding your atv downhill, shift your weight as far to the rear and uphill side of the atv as possible. Move back on the seat and sit with your arms straight. Choose a low gear which will allow the engine compression to do most of the braking for you. Improper braking may ca...

  • Page 95

    7-31 u4kb1e.Book page 31 wednesday, march 5, 2003 2:29 pm.

  • Page 96: Warning

    7-32 crossing a slope traversing a sloping surface on your atv re- quires you to properly position your weight to maintain proper balance. Be sure that you have learned the basic riding skills on flat ground before attempting to cross a sloping surface. Avoid slopes with slippery surfaces or rough t...

  • Page 97

    7-33 when crossing the side of a hill: always follow proper procedures as de- scribed in the owner’s manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the atv. U4kb1e.Book page 33 wednesday, march 5, 2003 2:29 pm.

  • Page 98: Warning

    7-34 crossing through shallow water the atv can be used to cross slow moving, shallow water of up to a maximum of 35 cm (14 inches) in depth. Before entering the wa- ter, choose your path carefully. Enter where there is no sharp drop off, and avoid rocks or other obstacles which may be slippery or u...

  • Page 99: Caution:

    7-35 test your brakes after leaving the water. Do not continue to ride your atv without verifying that you have regained proper braking ability. Caution: _ after riding your atv in water, be sure to drain the trapped water by removing the check hose at the bottom of the air filter case. Wash the atv...

  • Page 100: Warning

    7-36 riding over rough terrain riding over rough terrain should be done with caution. Look out for obstacles which could cause damage to the atv or could lead to an upset or accident. Be sure to keep your feet firmly mounted on the footboards at all times. Avoid jumping the atv as loss of control an...

  • Page 101

    7-37 u4kb1e.Book page 37 wednesday, march 5, 2003 2:29 pm.

  • Page 102

    7-38 sliding and skidding care should be used when riding on loose or slippery surfaces since the atv may slide. If unexpected and uncorrected, sliding could lead to an accident. To reduce the tendency for the front wheels to slide in loose or slippery conditions, position- ing your weight over the ...

  • Page 103: Warning

    7-39 with practice, over a period of time, skill at controlled sliding can be developed. The ter- rain should be chosen carefully before at- tempting such maneuvers, since both stability and control are reduced. Bear in mind that sliding maneuvers should always be avoided on extremely slippery surfa...

  • Page 104

    7-40 what to do if ... This section is designed to be a reference guide only. Be sure to read each section on riding techniques completely. What to do ... ● if your atv doesn’t turn when you want it to: bring the atv to a stop and practice the turning maneuvers again. Be sure you are putting your we...

  • Page 105: Warning

    7-41 ● if your atv is traversing a sloping surface: be sure to ride with your weight positioned towards the uphill side of the atv to main- tain proper balance. If the atv starts to tip, steer down the hill (if there are no obstacles in your way) to regain balance. If you dis- cover that the atv is ...

  • Page 106: Periodic Maintenance and

    8-1 ebu00515 periodic maintenance and adjustment periodic inspection, adjustment and lubrica- tion will keep your machine in the safest and most efficient condition possible. Safety is an obligation of the machine owner. The most important points of machine inspection, ad- justment and lubrication a...

  • Page 107: Warning

    8-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1. Owner’s tool kit 2. Low-pressure tire gauge 3. Owner’s manual note: _ if you do not have a torque wrench available during a service operation requiring one, take your machine to a yamaha dealer to check the torque settings and adjust them as neces- sary. _ war...

  • Page 108

    8-3 ebu00261 periodic maintenance/lubrication item routine initial every 1 month 3 months 6 months 6 months 1 year valves* • check valve clearance. • adjust if necessary. Spark plug • check condition. • adjust gap and clean. • replace if necessary. Air filter element • clean. • replace if necessary....

  • Page 109: Warning

    8-4 * it is recommended that these items be serviced by a yamaha dealer. ** lithium-soap-based grease note: • recommended brake fluid: dot 4 • brake fluid replacement: 1. When disassembling the master cylinders or calipers, re- place the brake fluid. Normally check the brake fluid level and add flui...

  • Page 110: Caution:

    8-5 ebu11810 engine oil engine oil level measurement 1. Place the atv on a level surface. 2. Warm up the engine for several minutes, and then stop it. 3. Remove the engine oil filler cap, and then wipe the dipstick off with a clean rag. In- sert the dipstick in the filler hole without screwing it in...

  • Page 111: Caution:

    8-6 1. Dipstick 2. Maximum level mark 3. Minimum level mark engine oil replacement and oil filter ele- ment cleaning 1. Place the atv on a level surface. 2. Warm up the engine for several minutes and stop it. 3. Place a container under the engine to collect the used oil. 4. Remove the engine oil fil...

  • Page 112: Caution:

    8-7 5. Remove the oil filter cover by removing the bolts and then remove the oil filter el- ement. 1. Engine oil filter cover 2. Bolt ( × 3) 6. Clean the oil strainer and oil filter element with solvent. 7. Check the o-ring for damage and re- place it if necessary. 8. Install the oil filter element ...

  • Page 113: Caution:

    8-8 11. Add the specified amount of the recom- mended engine oil, and then install the engine oil filler cap. Caution: _ ● in order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical additives. Do not use oils with a diesel specification of “cd” or ...

  • Page 114: Caution:

    8-9 ebu11450 final gear oil final gear oil measurement 1. Place the machine on a level surface. 2. Remove the oil filler bolt, and then check the oil level in the final gear case. Note: _ the oil level should be at the brim of the filler hole. _ 3. If the oil is below the brim of the filler hole, ad...

  • Page 115

    8-10 final gear oil replacement 1. Remove the final gear case cover by re- moving the bolts. 1. Final gear case cover 2. Bolt ( × 2) 2. Place the machine on a level surface. 3. Place a container under the final gear case to collect the used oil. 4. Remove the oil filler bolt and the drain bolt to dr...

  • Page 116: Caution:

    8-11 6. Add the recommended final gear oil to the brim of the filler hole. Caution: _ be sure no foreign material enters the final gear case. _ 7. Install the oil filler bolt. 8. Check for oil leakage. If oil leakage is found, check for the cause. 9. Install the final gear case cover bolts, and then...

  • Page 117

    8-12 3. Place a container under the differential gear case. 4. Remove the filler bolt and drain bolt to drain the oil. 1. Differential case oil filler bolt 1. Differential gear oil drain bolt 5. Install the drain bolt and tighten to speci- fication. 6. Fill the differential gear case with oil. Tight...

  • Page 118: Caution:

    8-13 caution: be sure no foreign material enters the dif- ferential gear case. 7. Install the filler bolt and tighten to specifi- cation. 8. Check for oil leakage. If oil leakage is found, check for the cause. Ebu00862 axle boots check the protective boots for holes or tears. If any damage is found,...

  • Page 119

    8-14 1. Boot ( × 2) u4kb1e.Book page 14 wednesday, march 5, 2003 2:29 pm.

  • Page 120

    8-15 ebu11820 spark plug inspection the spark plug is an important engine compo- nent and is easy to inspect. The condition of the spark plug can indicate the condition of the engine. For example, a very white center electrode porcelain color could indicate an intake air leak or carburetion problem ...

  • Page 121

    8-16 ebu11830 air filter cleaning note: _ there is a check hose at the bottom of the air filter case. If dust or water collects in this hose, empty the hose and clean the air filter element and air filter case. _ 1. Air filter case check hose 1. Remove the seat. (see page 4-14 for seat removal and i...

  • Page 122: Caution:

    8-17 4. Remove the air filter element from the frame. 1. Element retaining plate 2. Frame 3. Air filter element 5. Wash the air filter element gently but thoroughly in solvent. 6. Squeeze the excess solvent out of the air filter element and let it dry. Caution: _ do not twist the air filter element ...

  • Page 123: Caution:

    8-18 7. Inspect the air filter element. If damaged, replace it. 8. Apply yamaha foam air filter oil or other quality foam air filter oil to the air filter el- ement. If foam air filter oil is not available, engine oil may be used. Note: _ the air filter element should be wet but not dripping. _ 9. A...

  • Page 124

    8-19 ebu01111 spark arrester cleaning be sure the exhaust pipe and muffler are cool before cleaning the spark arrester. 1. Remove the bolt. 2. Remove the tailpipe by pulling it out of the muffler. 1. Bolt 3. Tap the tailpipe lightly, and then use a wire brush to remove any carbon depos- its from the...

  • Page 125: Caution:

    8-20 ebu00296 carburetor adjustment the carburetor is a vital part of the engine and requires very sophisticated adjustment. Most adjusting should be left to a yamaha dealer who has the professional knowledge and ex- perience to do so. However, the idling speed may be performed by the owner as a par...

  • Page 126

    8-21 ebu13020 idle speed adjustment note: _ a diagnostic tachometer must be used for this procedure. _ 1. Start the engine and warm it up for a few minutes at approximately 1,000 to 2,000 r/min. Occasionally rev the engine to 4,000 to 5,000 r/min. The engine is warm when it quickly responds to the t...

  • Page 127

    8-22 ebu00306 reverse lock release cable adjustment the reverse lock release cable stretches with use, resulting in improper function. To prevent this, the cable must be adjusted regularly. This adjustment, however, should be left to a yamaha dealer. 1. Locknut 2. Adjusting nut ebu00307 throttle lev...

  • Page 128

    8-23 ebu13720 checking the front and rear brake pads the front and rear brake pads must be checked for wear at the intervals specified in the periodic maintenance and lubrication chart. Front brake pads check each front brake pad for damage and measure the lining thickness. If a brake pad is damaged...

  • Page 129

    8-24 ebu13040 brake fluid level check insufficient brake fluid may let air enter the brake system, possibly causing the brakes to become ineffective. Before riding, check that the brake fluid is above the minimum level mark and replenish if necessary. A low brake fluid level may indi- cate worn brak...

  • Page 130

    8-25 ● refill with the same type of brake fluid. Mix- ing fluids may result in a harmful chemical reaction and lead to poor brake perfor- mance. ● be careful that water does not enter the brake fluid reservoir when refilling. Water will significantly lower the boiling point of the fluid and may resu...

  • Page 131: Warning

    8-26 ebu00343 rear brake and parking brake adjustment 1. Apply the rear brake pedal several times. 2. Loosen the rear brake cable and parking brake cable locknuts. 1. Rear brake cable locknut 2. Parking brake cable locknut 3. Parking brake cable adjusting bolt 4. Rear brake cable adjusting bolt 3. L...

  • Page 132: Caution:

    8-27 1. Caliper adjusting bolt locknut 2. Caliper adjusting bolt a. Cable length 5. Turn in the rear caliper adjusting bolt by hand until it feels tight. Then turn it out 1/8 turn and tighten the locknut to the specified torque. Caution: when tightening the locknut, hold the ad- justing bolt with a ...

  • Page 133: Warning

    8-28 1. Rear brake cable locknut 2. Parking brake cable locknut 3. Parking brake cable adjusting bolt 4. Rear brake cable adjusting bolt 7. Turn the rear brake cable adjusting bolt so that there is no free play in the brake lever. Then tighten the rear brake cable locknut. 8. Turn the rear wheel to ...

  • Page 134

    8-29 ebu00834 adjusting the rear brake light switch the rear brake light switch, which is activated by the brake pedal and brake levers, is prop- erly adjusted when the brake light comes on just before braking takes effect. If necessary, adjust the brake light switch as follows. 1. Rear brake light ...

  • Page 135: Warning

    8-30 note: turn the adjusting bolt counterclockwise to decrease the clutch free play and turn it clock- wise to increase the free play. Ebu00356 cable inspection and lubrication lubricate the inner cables and the cable ends. If the cables do not operate smoothly, ask a yamaha dealer to replace them....

  • Page 136

    8-31 ebu01112 wheel removal 1. Loosen the wheel nuts. 2. Elevate the atv and place a suitable stand under the frame. 3. Remove the nuts from the wheel. 4. Remove the wheel. Ebu01121 wheel installation 1. Install the wheel and the nuts. Note: _ ● tapered nuts are used for both the front and rear whee...

  • Page 137: Caution:

    8-32 1. Tapared nut 2. Lower the atv so that the wheel is on the ground. 3. Tighten the wheel nuts to the specified torque. Ebu00378 battery check the level of the battery fluid and see if the terminals are tight. Add distilled water if the fluid level is low. Caution: do not leave or store the batt...

  • Page 138: Warning

    8-33 1. Battery 2. Battery breather hose 3. Guide warning potential hazard failure to handle batteries or battery electrolyte carefully. What can happen you could be poisoned. You could be severely burned by the sulfuric acid in battery electrolyte. Batteries produce explosive gases. How to avoid th...

  • Page 139: Caution:

    8-34 ebu00542 replenishing the battery fluid a poorly maintained battery will corrode and discharge quickly. The battery fluid should be checked at least once a month. 1. The level should be between the upper and lower level marks. Use only distilled water if refilling is necessary. 1. Maximum level...

  • Page 140

    8-35 5. When the machine is not to be used for a month or longer, remove the battery and store it in a cool, dark place. Completely recharge the battery before reusing. 6. If the battery is to be stored for a longer period than the above, check the specific gravity at least once a month and re- char...

  • Page 141: Caution:

    8-36 caution: to prevent accidental short-circuiting, turn off the main switch when checking or replacing a fuse. Ebu01088 replacing a headlight bulb if a headlight bulb burns out, replace the bulb as follows. 1. Remove the screws holding the headlight unit assembly to the headlight body. 1. Screw w...

  • Page 142: Caution:

    8-37 2. Remove the bulb holder cover. 3. Turn the bulb holder counterclockwise to remove the defective bulb. 1. Headlight bulb holder cover 2. Headlight bulb holder 3. Reflector 4. Put a new bulb into position and secure it in place with the bulb holder. 5. Install the bulb holder cover. Caution: ma...

  • Page 143: Caution:

    8-38 ebu01089 headlight beam adjustment caution: it is advisable to have a yamaha dealer make this adjustment. To raise the beam, turn the adjusting screw in direction a. To lower the beam, turn the adjusting screw in direction b. 1. Adjusting screw ebu00945 tail/brake light bulb replacement 1. Open...

  • Page 144

    8-39 3. Remove the bulb holder (together with the bulb) by turning it counterclockwise. 1. Tail/brake light bulb holder 4. Remove the defective bulb from the bulb holder by pushing it inward and turning it counterclockwise. 1. Tail/brake light bulb holder 2. Bulb 5. Install a new bulb in the bulb ho...

  • Page 145: Warning

    8-40 ebu00412 troubleshooting although yamaha machines receive a rigid in- spection before shipment from the factory, trouble may occur during operation. Any prob- lem in the fuel, compression, or ignition sys- tems can cause poor starting and loss of power. The troubleshooting chart describes a qui...

  • Page 146

    8-41 ebu00440 troubleshooting chart 1. Fuel check if there is fuel in the fuel tank. There is fuel. Turn the fuel cock to “off”. No fuel. Fuel cock clogged. Clean fuel cock. Some fuel. Turn the fuel cock to “res”. Restart engine. No fuel. Supply fuel. 2. Compression use the electric starter to see i...

  • Page 147: Cleaning and Storage

    9-1 ebu00419 cleaning and storage a. Cleaning frequent, thorough cleaning of your machine will not only enhance its appearance but will improve its general performance and extend the useful life of many components. 1. Before cleaning the machine: a. Block off the end of the exhaust pipe to prevent w...

  • Page 148: Warning

    9-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 6. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and glossy. 7. Automotive type wax may be applied to all painted and chrome plated surfaces. Avoid combination cleaner-waxes. Many contain abrasives which may mar the paint or protective ...

  • Page 149

    9-3 ebu00530 b. Storage long term storage (60 days or more) of your machine will require some preventive proce- dures to guard against deterioration. After thoroughly cleaning the machine, prepare for storage as follows: 1. Fill the fuel tank with fresh fuel and add the specified amount of yamaha fu...

  • Page 150

    9-4 7. Remove the battery and charge it. Store it in a dry place and recharge it once a month. Do not store the battery in an ex- cessively warm or cold place (less than 0 °c (30 °f) or more than 30 °c (90 °f)). Note: make any necessary repairs before storing the machine. U4kb1e.Book page 4 wednesda...

  • Page 151: Specifications

    10-1 ebu00428 specifications model yfm350fx dimensions: overall length overall width overall height seat height wheel base minimum ground clearance minimum turning radius 1,870 mm (73.6 in) 1,075 mm (42.3 in) 1,150 mm (45.3 in) 790 mm (31.1 in) 1,230 mm (48.4 in) 220 mm (8.66 in) 3,500 mm (138 in) b...

  • Page 152

    10-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 engine oil: type recommended engine oil classification: api service se, sf, sg type or higher quantity: periodic oil change with oil filter replacement total amount 2.9 l (2.6 imp qt, 3.1 us qt) 3.0 l (2.6 imp qt, 3.2 us qt) 3.5 l (3.1 imp qt, 3.7 us qt) model y...

  • Page 153

    10-3 final gear oil: type quantity: periodic oil change total amount sae80api “gl-4” hypoid gear oil 0.19 l (0.17 imp qt, 0.20 us qt) 0.25 l (0.22 imp qt, 0.26 us qt) differential gear oil: type quantity: periodic oil change total amount sae80 or sae80w-90 api gl-5 hypoid gear oil for l.S.D. (limite...

  • Page 154

    10-4 transmission: primary reduction system primary reduction ratio secondary reduction system secondary reduction ratio transmission type operation gear ratio: 1st 2nd 3rd 4th 5th reverse gear spur gear 76/24 (3.167) shaft drive 24/28 × 24/18 × 33/09 (4.190) constant mesh 5-speed left foot operatio...

  • Page 155

    10-5 suspension: front suspension rear suspension double wishbone swingarm (monocross) shock absorber: front shock absorber rear shock absorber coil spring / oil damper coil spring / oil damper wheel travel: front wheel travel rear wheel travel 180 mm (7.1 in) 180 mm (7.1 in) electrical: ignition sy...

  • Page 156: Noise Regulation

    11-1 ebu00430 noise regulation tampering with noise control system prohibited: federal law prohibits the following acts or the causing thereof: (1) the removal or rendering inop- erative by any person other than for purposes of maintenance, repair, or replacement of any de- vice or element of design...

  • Page 157: Maintenance Record

    12-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ebu00431 maintenance record copies of work orders and/or receipts for parts you purchase and install will be required to docu- ment maintenance done in accordance with the warranty. The chart below is printed only as a re- minder to you that the maintenance work...

  • Page 158

    13-1 ebu00432 yamaha motor corporation, u.S.A. Atv limited warranty u4kb1e.Book page 1 wednesday, march 5, 2003 2:29 pm.

  • Page 159

    13-2 1 2 3 4 5 6 7 8 9 10 9 9 13 14 u4kb1e.Book page 2 wednesday, march 5, 2003 2:29 pm.

  • Page 160

    14-1 ebu00435 yamaha extended service (y.E.S.) u4kb1e.Book page 1 wednesday, march 5, 2003 2:29 pm.

  • Page 161

    14-2 1 2 3 4 5 6 7 8 9 10 9 9 9 14 u4kb1e.Book page 2 wednesday, march 5, 2003 2:29 pm.

  • Page 162: Warning

    14-3 ebu00436 warning indicates a potential hazard that could result in serious injury or death. U4kb1e.Book page 3 wednesday, march 5, 2003 2:29 pm.

  • Page 163

    14-5 ebu00437 u4kb1e.Book page 5 wednesday, march 5, 2003 2:29 pm.

  • Page 164: 4Kb-28199-1E

    4kb-28199-1e lit-11626-17-03 read this manual carefully! It contains important safety information. This atv should not be ridden by anyone under 16 years of age. Warning yfm350fxs owner’s manual printed in japan 2003.03-0.7 ×1 cr (e) printed on recycled paper yamaha motor co., ltd. Ebu00438 locate a...

  • Page 165

    Card.Fm page 1 wednesday, june 13, 2001 9:35 am.

  • Page 166

    Card.Fm page 2 wednesday, june 13, 2001 9:35 am.