Yamaha WOLVERINE YFM350FXS Owner's Manual
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Yamaha WOLVERINE YFM350FXS Owner's Manual

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READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER'S MANUAL
YFM350FXS
WARNING
This ATV should not be ridden by anyone under 16 years of age.
LIT-11626-17-03
4KB-28199-1E

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Summary of Contents for Yamaha WOLVERINE YFM350FXS

  • Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM350FXS WARNING This ATV should not be ridden by anyone under 16 years of age. LIT-11626-17-03 4KB-28199-1E...
  • Page 2 EBU00776...
  • Page 3 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 crafts- manship and reliability that have made Yamaha a leader in these fields.

  • Page 4: Warning

    EBU00801 I MPORTANT 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 INVOLVED! Failure to follow WARNING instructions could result in severe in- WARNING...
  • Page 5 Please check your local riding laws and regulations before operating this machine. EBU00981 YFM350FXS OWNER’S MANUAL © 2003 by Yamaha Motor Corporation, AFFIX DEALER U.S.A. 1st edition, February 2003 LABEL HERE All rights reserved.

  • Page 6: Table Of Contents

    EBU00014 CONTROL FUNCTIONS....4-1 WARNING Main switch ........4-1 Indicates a potential hazard that could Indicator and warning lights .....4-2 result in serious injury or death. Oil temperature warning light checking method......4-3 Handlebar switches ......4-4 CONTENTS Throttle lever ........4-5 Speed limiter ........4-6 Front brake lever......4-7 LOCATION OF THE WARNING Rear brake pedal and lever .....4-7...
  • Page 7 PRE-OPERATION CHECKS ... 5-1 To decelerate........6-7 Front and rear brakes ..... 5-3 Engine break-in ....... 6-7 Fuel ..........5-4 Parking..........6-8 Engine oil ........5-6 Parking on a slope......6-9 Final gear oil........5-7 Accessories and loading ....6-10 Differential gear oil ......
  • Page 8 PERIODIC MAINTENANCE AND Rear brake and parking brake ADJUSTMENT........8-1 adjustment ........8-26 Owner’s manual and tool kit.... 8-1 Adjusting the rear brake light Periodic maintenance/ switch ...........8-29 lubrication ........8-3 Clutch adjustment ......8-29 Engine oil......... 8-5 Cable inspection and lubrication..8-30 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...

  • Page 10: 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 label is available from your Yamaha dealer.
  • Page 11 WARNING WARNING Improper ATV use can result in SEVERE IMPROPER TIRE PRESSURE OR OVERLOADING CAN INJURY or DEATH. CAUSE LOSS OF CONTROL. LOSS OF CONTROL CAN RESULT IN SEVERE INJURY OR DEATH. OPERATING TIRE PRESSURE : Set with tires cold •...
  • Page 12 WARNING UNDER Operating this ATV if you are under the age of 16 increases your chance of severe injury or death. NEVER operate this ATV if you are under age 16. 5FE-21697-01...

  • Page 13: Safety Information

    EBU00924 SAFETY INFORMATION 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 hills or over obstacles, if you fail to take proper precautions.
  • Page 14 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 should also wear eye protection (goggles or face shield), gloves, boots, long-sleeved shirt or jacket, and long pants.
  • Page 15 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 attempting larger hills.
  • Page 16 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 side or to a side if pointed straight uphill.
  • Page 17 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 and securely attached.
  • Page 18 WARNING When transporting the ATV in another vehicle, be sure it is kept upright and POTENTIAL HAZARD that the fuel cock is in the “OFF” posi- Improper handling of gasoline. tion. Otherwise, fuel may leak out of the WHAT CAN HAPPEN carburetor or fuel tank.
  • Page 19 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.

  • Page 20: Description And Machine Identification

    EBU00032 DESCRIPTION AND MACHINE IDENTIFICATION 1. Spark arrester 11. Recoil starter 2. Battery 12. Shift pedal 3. Rear brake light switch 13. Rear brake lever 4. Headlight 14. Parking brake 5. Rear brake pedal 15. Main switch 6. Fuel cock 16.

  • Page 21: Identification Number Records

    This number can be used for ordering a new when ordering spare parts from a Yamaha key. dealer or for reference in case the vehicle is stolen.

  • Page 22: Vehicle Identification Number

    Record the information on this la- bel in the space provided. This information will be needed to order spare parts from your Yamaha dealer. 1. Vehicle identification number NOTE: The vehicle identification number is used to 1.

  • Page 23: Control Functions

    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: The engine can be started only at this position and the headlights and taillight come on when the light switch is on.

  • Page 24: Indicator And Warning Lights

    EBU00802 EBU01140 Indicator and warning lights Oil temperature warning light “ ” When the oil temperature reaches a specified level, this light comes on to warn that the en- gine oil temperature is too hot. If the light comes on during operation, stop the engine as soon as it is safe to do so and allow the en- gine to cool down for about 10 minutes.

  • Page 25: Oil Temperature Warning Light Checking Method

    Allow to cool. Engine oil temperature and Ask a Yamaha dealer to electrical circuit are OK. Go inspect the electrical circuit. ahead with riding.

  • Page 26: Handlebar Switches

    EBU00053 EBU00647 Handlebar switches Start switch “START” The starter motor cranks the engine when this switch is pushed. CAUTION: See the starting instructions on page 6-1 prior to starting the engine. EBU11560 Light switch “LIGHTS” Set the switch to the “LO” position to turn on the low beam and the taillight.

  • Page 27: Throttle Lever

    Check the operation of the throttle lever before you start the engine. If it does not work smoothly, check for the cause. Correct the problem before riding the ATV. Consult a Yamaha dealer if you 1. Throttle lever can’t find or solve the problem yourself.

  • Page 28: Speed Limiter

    EBU11590 Speed limiter WARNING The speed limiter keeps the throttle from fully POTENTIAL HAZARD opening, even when the throttle lever is Improper adjustment of the speed limit- pushed to the maximum. Turning in the ad- er and throttle. justing screw limits the maximum engine pow- WHAT CAN HAPPEN er available and decreases the maximum The throttle cable could be damaged.

  • Page 29: Front Brake Lever

    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. Rear brake pedal 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 left handlebar.

  • Page 30: Parking Brake

    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.
  • Page 31 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 1.

  • Page 32: Shift Pedal

    EBU00084 EBU01028 Shift pedal Reverse knob “REV” This machine is equipped with a constant- The reverse knob is used to shift into reverse mesh 5-speed forward and 1-speed reverse gear. Refer to the “Reverse knob operation transmission. The shift pedal is located on the and reverse driving”...

  • Page 33: Recoil Starter

    EBU00590 Recoil starter WARNING Firmly grasp the handle and pull slightly until POTENTIAL HAZARD engagement can be felt. Then pull forcefully, Starting the engine in gear and/or start- being careful not to pull the rope all the way ing the engine without setting the park- out.

  • Page 34: Fuel Tank Cap

    EBU00092 EBU00093 Fuel tank cap Fuel cock Remove the fuel tank cap by turning it coun- The fuel cock supplies fuel from the fuel tank terclockwise. to the carburetor. The fuel cock has three positions. OFF: With the lever in this position fuel will not flow.

  • Page 35: Starter (Choke)

    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: Seat

    EBU00567 Seat To install the seat, insert the projections on To remove the seat, pull the seat lock lever the front of the seat into the seat holders and upward and pull up the seat at the rear. push down on the seat at the rear. NOTE: Make sure that the seat is securely fitted.

  • Page 37: Storage Box

    EBU00581 Storage box Maximum load limit: 2 kg (4.4 lb) 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.

  • Page 38: Front Shock Absorber Adjustment

    1. Special wrench Standard position: B A - Minimum (soft) E - Maximum (hard) 1. Spring preload adjusting ring 2. Position indicator NOTE: A special wrench can be obtained at a Yamaha dealer to make this adjustment. 4-16...
  • Page 39 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.

  • Page 40: Rear Shock Absorber Adjustment

    E - Maximum (hard) EBU00112 1. Spring preload adjusting ring 2. Position indicator WARNING NOTE: A special wrench can be obtained at a Indicates a potential hazard that could Yamaha dealer to make this adjustment. result in serious injury or death. 4-18...

  • Page 41: Pre-Operation Checks

    PRE-OPERATION CHECKS Before using this machine, check the following points: ITEM ROUTINE PAGE • Check operation, free play, fluid level and fluid leakage. 5-2–5-3, Brakes • Fill with DOT 4 brake fluid if necessary. 8-23–8-28 Parking brake • Check operation, condition and cable length. 8-26–8-28 •...

  • Page 42: Front And Rear Brakes

    If not, have the machine inspected by a HOW TO AVOID THE HAZARD Yamaha dealer. Always inspect your ATV each time you use it to make sure the ATV is in safe op- Brake fluid level erating condition.
  • Page 43 If there is any brakes. leaking, have the machine inspected by a WHAT CAN HAPPEN Yamaha dealer. You could lose braking ability, which Brake operation could lead to an accident. Test the brakes at slow speed after starting HOW TO AVOID THE HAZARD out to make sure they are working properly.

  • Page 44: Fuel

    EBU01085 Fuel Your Yamaha engine has been designed to Make sure there is sufficient gasoline in the use regular unleaded gasoline with a pump tank. octane number ([R+M]/2) of 86 or higher, or research octane number of 91 or higher. If...
  • Page 45 Fuel can spill, which can cause a fire hol containing methanol is not recommended and severe injury. Fuel expands when it by Yamaha because it may cause fuel system heats up. If the fuel tank is overfilled, damage or vehicle performance problems.

  • Page 46: Engine Oil

    EBU01084 Engine oil CAUTION: Make sure the engine oil is at the specified In order to prevent clutch slippage level. Add oil as necessary. (See page 8-5.) (since the engine oil also lubricates Recommended oil: the clutch), do not mix any chemical additives.

  • Page 47: Final Gear Oil

    Make sure the differential gear oil is at the and fasteners before a ride. Take the machine specified level. Add oil as necessary. (See to a Yamaha dealer or refer to the Service pages 8-11–8-13 for details.) Manual for correct tightening torque.

  • Page 48: Lights

    WHAT CAN HAPPEN Check the operation of all switches. Have a Use of improper tires on this ATV, or op- Yamaha dealer repair as necessary for proper eration of this ATV with improper or un- operation. even tire pressure, may cause loss of...
  • Page 49 2. The tires should be set to the rec- 4. Use no more than the following ommended pressure: pressures when seating the tire Recommended tire pressure beads. Front 25 kPa (0.25 kgf/cm , 3.6 psi) Front 250 kPa (2.5 kgf/cm , 36 psi) Rear 25 kPa (0.25 kgf/cm , 3.6 psi)

  • Page 50: How To Measure Tire Pressure

    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.

  • Page 51: Tire Wear Limit

    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 5-11...

  • Page 52: Operation

    2. Turn the fuel cock to “ON”. there is a control or function you do not 3. Turn the main switch to “ON” and the en- understand, ask your Yamaha dealer. gine stop switch to “RUN”. 4. Shift the transmission into neutral.
  • Page 53 If start position. 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 shift into neutral be- fore starting the engine.

  • Page 54: Starting A Warm Engine

    NOTE: CAUTION: If the engine fails to start, release the See the “Engine break-in” section prior to start switch, then push the start switch operating engine for the first time. again. Pause a few seconds before the EBU00180 next attempt. Each cranking should be as Starting a warm engine short as possible to preserve battery en- To start a warm engine, refer to the “Starting a...

  • Page 55: Reverse Knob Operation And Reverse Driving

    When in reverse, the reverse indicator light should be on. If the light does not come on, ask CAUTION: a Yamaha dealer to inspect the machine. Before shifting, stop the machine and re- 4. Check behind you for people or obsta- turn the throttle lever to its closed posi- tion.

  • Page 56: Shifting

    EBU12950 Shifting CAUTION: This model has a 5-speed forward and Do not coast for long periods with the en- 1-speed reverse transmission with centrifugal gine off, and do not tow the ATV a long dis- automatic clutch. The transmission allows you tance.

  • Page 57: To Start Out And Accelerate

    EBU00205 To start out and accelerate: WARNING 1. Release the throttle lever. POTENTIAL HAZARD Opening the throttle before releasing CAUTION: the shift pedal. Always close the throttle while shifting WHAT CAN HAPPEN gears. Otherwise, damage to the engine The machine could wheelie. This would and drive train may result.

  • Page 58: To Decelerate

    EBU00207 EBU00209 To decelerate: Engine break-in When slowing down or stopping, release the There is never a more important period in the throttle and apply the brakes smoothly and life of your machine than the period between evenly. As you slow down, shift to a lower zero and 20 hours.

  • Page 59: Parking

    If any abnormality is noticed during this peri- od, consult a Yamaha dealer. 1. 0–10 hours: Avoid continuous operation above half throttle. Allow a cooling off period of five to ten minutes after every hour of opera- tion.

  • Page 60: Parking On A Slope

    EBU12960 Parking on a slope 1. Bring the ATV to a stop by applying the brakes in low gear. WARNING 2. Stop the engine. POTENTIAL HAZARD 3. With the rear brake lever and pedal ap- Parking on a hill or other incline. plied, apply the parking brake and slowly WHAT CAN HAPPEN release the brake pedal.

  • Page 61: Accessories And Loading

    Choose only accessories designed for your Use extra caution when riding an ATV with ATV. Your Yamaha dealer has a variety of accessories. The ATV may handle differ- genuine Yamaha accessories. Other ac- ently than it does without accessories.
  • Page 62 EBU05840 Loading Tie down cargo securely to the carriers. As originally equipped, this ATV is not de- Make sure cargo in the trailer cannot move signed to carry cargo or tow a trailer. If you around. A shifting load can cause an acci- choose to add accessories so that you can dent.
  • Page 63 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.
  • Page 64 EBU13471 WARNING Indicates a potential hazard that could result in serious injury or death. 6-13...

  • Page 65: Riding Your Atv

    R iding Your...

  • Page 67: Getting To Know Your Atv

    WARNING Indicates a potential hazard that could result in serious injury or death. GETTING TO KNOW YOUR ATV necessary to enjoy riding safely. Before you This ATV is mainly for recreation, but may begin to ride, be sure you have read this Own- also be used for utility use.

  • Page 68: Ride With Care And Good Judgement

    JUDGEMENT Beginning and inexperienced operators should complete the certified training Get training if you are inexperienced. course offered by Yamaha. They should Beginners should get training from a certified then regularly practice the skills learned instructor. in the course and the operating tech- Become familiar with this ATV at slow speeds niques described in this Owner’s Manu-...
  • Page 69 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.
  • Page 70 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.
  • Page 71 Apparel Operating without protective clothing WARNING increases your chances of severe injury in the event of an accident. POTENTIAL HAZARD HOW TO AVOID THE HAZARD Operating this ATV without wearing an Always wear an approved motorcycle approved motorcycle helmet, eye pro- helmet that fits properly.
  • Page 72 Do not operate after consuming alcohol or WARNING drugs. POTENTIAL HAZARD Operator’s performance capability is reduced Operating this ATV after consuming al- by the influence of alcohol or drugs. cohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could cause you to react more slowly.
  • Page 73 Pre-operation checks WARNING Always perform the pre-operation checks list- POTENTIAL HAZARD ed on page 5-1 before riding for safety and Operating this ATV with improper tires, proper care of the ATV. or with improper or uneven tire pres- WARNING sure. POTENTIAL HAZARD WHAT CAN HAPPEN Failure to inspect the ATV before oper-...
  • Page 74 Speed limiter WARNING For riders inexperienced with this model, this Indicates a potential hazard that could model is equipped with a speed limiter in the result in serious injury or death. throttle lever housing. The speed limiter limits the power and top speed of the ATV. Turning Do not operate at speeds too fast for your the adjusting screw in decreases the top skills or the conditions.
  • Page 75 Loading and accessories WARNING Use extra caution when riding the ATV with POTENTIAL HAZARD additional loads, such as accessories or car- Overloading this ATV or carrying or tow- go. The ATV’s handling may be adversely af- ing cargo improperly. fected. Reduce your speed when adding WHAT CAN HAPPEN additional loads.
  • Page 76 During operation WARNING Always keep your feet on the footboards dur- POTENTIAL HAZARD ing operation. Otherwise your feet may con- Removing hands from handlebars or tact the rear wheels. feet from footboards during operation. WHAT CAN HAPPEN Removing even one hand or foot can re- duce your ability to control the ATV or could cause you to lose your balance and fall off of the ATV.
  • Page 77 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 Never modify this ATV through improp- er installation or use of accessories. All parts and accessories added to this ve- hicle should be genuine Yamaha or equivalent components designed for use on this ATV and should be installed and used according to instructions. If you have questions, consult an autho- rized ATV dealer.
  • Page 79 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.

  • Page 80: Be Careful Where You Ride

    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 control of the ATV, and may cause the vehicle to go out of con-...
  • Page 81 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 this ATV on any public street, road or highway, even a dirt or...
  • Page 82 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.
  • Page 83 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 rough, slippery or loose terrain until you have learned and practiced the skills neces-...
  • Page 84 When riding in an area where you might not WHAT CAN HAPPEN easily be seen, such as desert terrain, mount You could be in a collision. You could a caution flag on the ATV. DO NOT use the be injured. flag pole bracket as a trailer hitch.
  • Page 85 Select a large, flat area off-road to become fa- With the engine idling, lift the shift pedal to the miliar with your ATV. Make sure that this area 1st gear position and then release the parking is free of obstacles and other riders. You brake.
  • Page 86 CAUTION: WARNING Do not shift gears without releasing the POTENTIAL HAZARD throttle. Damage to the engine or drive Engaging a lower gear when the engine train may occur. speed is too high. WHAT CAN HAPPEN When slowing down or stopping, release the The wheels could stop rotating.

  • Page 87: Turning Your Atv

    TURNING YOUR ATV HOW TO AVOID THE HAZARD To achieve maximum traction while riding off- Always follow proper procedures for road, the two rear wheels are mounted solidly turning as described in this Owner’s on one axle and turn together at the same Manual.
  • Page 88 Once you have learned this technique you should be able to perform it at higher speeds or in tighter curves. Improper riding procedures such as abrupt throttle changes, excessive braking, incorrect body movements, or too much speed for the sharpness of the turn may cause the ATV to tip.

  • Page 89: Climbing Uphill

    CLIMBING UPHILL HOW TO AVOID THE HAZARD Use proper riding techniques to avoid vehicle Never operate the ATV on hills too steep overturns on hills. Be sure that you can ma- for the ATV or for your abilities. neuver your ATV well on flat ground before at- Practice on smaller hills before attempt- tempting any incline and then practice riding ing large hills.
  • Page 90 WARNING An obstacle, a sharp drop, or another vehicle or person could be on the other POTENTIAL HAZARD side of the hill. 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.
  • Page 91 If you are climbing a hill and you find that you When crossing the side of a hill: have not properly judged your ability to make Always follow proper procedures as de- it to the top, you should turn the ATV around scribed in the Owner’s Manual.
  • Page 92 If your ATV has stalled or stopped and you WARNING believe you can continue up the hill, restart POTENTIAL HAZARD carefully to make sure you do not lift the front Stalling, rolling backwards or improper- wheels which could cause you to lose control. ly dismounting while climbing a hill.
  • Page 93 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- 7-29...

  • Page 94: Riding Downhill

    RIDING DOWNHILL WARNING When riding your ATV downhill, shift your POTENTIAL HAZARD weight as far to the rear and uphill side of the Going down a hill improperly. ATV as possible. Move back on the seat and WHAT CAN HAPPEN sit with your arms straight.
  • Page 95 7-31...

  • Page 96: Crossing A Slope

    CROSSING A SLOPE If your ATV does begin to tip over, gradually Traversing a sloping surface on your ATV re- steer in the downhill direction if there are no quires you to properly position your weight to obstacles in your path. As you regain proper maintain proper balance.
  • Page 97 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. 7-33...

  • Page 98: Crossing Through Shallow Water

    CROSSING THROUGH SHALLOW WATER Remember that wet brakes may have re- The ATV can be used to cross slow moving, duced stopping ability. Test your brakes shallow water of up to a maximum of 35 cm after leaving water. If necessary, apply (14 inches) in depth.
  • Page 99 Test your brakes after leaving the water. Do CAUTION: not continue to ride your ATV without verifying After riding your ATV in water, be sure to that you have regained proper braking ability. drain the trapped water by removing the check hose at the bottom of the air filter case.

  • Page 100: Riding Over Rough Terrain

    RIDING OVER ROUGH TERRAIN WARNING Riding over rough terrain should be done with POTENTIAL HAZARD caution. Look out for obstacles which could Improperly operating over obstacles. cause damage to the ATV or could lead to an WHAT CAN HAPPEN upset or accident. Be sure to keep your feet Could cause loss of control or a colli- firmly mounted on the footboards at all times.
  • Page 101 7-37...

  • Page 102: Sliding And Skidding

    SLIDING AND SKIDDING If the rear wheels of your ATV start to slide Care should be used when riding on loose or sideways, control can usually be regained (if slippery surfaces since the ATV may slide. If there is room to do so) by steering in the direc- unexpected and uncorrected, sliding could tion of the slide.
  • Page 103 With practice, over a period of time, skill at WARNING controlled sliding can be developed. The ter- POTENTIAL HAZARD rain should be chosen carefully before at- Skidding or sliding improperly. tempting such maneuvers, since both stability WHAT CAN HAPPEN and control are reduced. Bear in mind that You may lose control of this ATV.

  • Page 104: What To Do If

    WHAT TO DO IF ... If your ATV starts to slide sideways: This section is designed to be a reference Steer in the direction of the slide if you have guide only. Be sure to read each section on the room. riding techniques completely.
  • Page 105 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.

  • Page 106: Periodic Maintenance And Adjustment

    EBU00515 PERIODIC MAINTENANCE AND Have a Yamaha dealer perform service if ADJUSTMENT you are not familiar with machine ser- vice. Periodic inspection, adjustment and lubrica- tion will keep your machine in the safest and most efficient condition possible. Safety is an EBU12210 obligation of the machine owner.
  • Page 107 Yamaha or your machine to a Yamaha dealer to check equivalent components designed for the torque settings and adjust them as neces- use on this ATV and should be installed sary.

  • Page 108: Periodic Maintenance/Lubrication

    EBU00261 PERIODIC MAINTENANCE/LUBRICATION INITIAL EVERY ITEM ROUTINE month months months months year • Check valve clearance. Valves* • Adjust if necessary. • Check condition. Spark plug • Adjust gap and clean. • Replace if necessary. • Clean. Every 20–40 hours Air filter element •...
  • Page 109 • Correct if necessary. • Check operation. Lights and switches • Adjust headlight beams. 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.

  • Page 110: Engine Oil

    EBU11810 Engine oil 4. Remove the dipstick, and then check the Engine oil level measurement oil level. 1. Place the ATV on a level surface. NOTE: 2. Warm up the engine for several minutes, The oil level should be between the maximum and then stop it.
  • Page 111 CAUTION: When removing the drain bolt, the com- pression spring, oil strainer and O-ring will fall out. Take care not to lose these parts. 1. Dipstick 2. Maximum level mark 3. Minimum level mark Engine oil replacement and oil filter ele- ment cleaning 1.
  • Page 112 5. Remove the oil filter cover by removing the bolts and then remove the oil filter el- ement. 1. Engine oil filter element 2. O-ring 10. Install the oil strainer, compression spring, O-ring and drain bolt. Tighten the 1. Engine oil filter cover drain bolt and oil filter cover bolts to the 2.
  • Page 113 CAUTION: Tightening torques: In order to prevent clutch slippage Drain bolt: (since the engine oil also lubricates 32 Nm (3.2 m·kgf, 23 ft·lbf) the clutch), do not mix any chemical Filter cover bolt: additives. Do not use oils with a diesel 10 Nm (1.0 m·kgf, 7.0 ft·lbf) specification of “CD”...

  • Page 114: Final Gear Oil

    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.
  • Page 115 Final gear oil replacement 2. Place the machine on a level surface. 1. Remove the final gear case cover by re- 3. Place a container under the final gear moving the bolts. case to collect the used oil. 4. Remove the oil filler bolt and the drain bolt to drain the oil.

  • Page 116: Differential Gear Oil Replacement

    EBU00707 6. Add the recommended final gear oil to Differential gear oil replacement the brim of the filler hole. 1. Place the machine on a level place. 2. Remove the differential gear case cover. Recommended oil: See page 10-3. Oil quantity: 0.25 L (0.22 Imp qt, 0.26 US qt) CAUTION: Be sure no foreign material enters the final...
  • Page 117 3. Place a container under the differential gear case. 4. Remove the filler bolt and drain bolt to drain the oil. 1. Differential gear oil drain bolt 5. Install the drain bolt and tighten to speci- fication. Tightening torque: 1. Differential case oil filler bolt Drain bolt (differential gear case): 12 Nm (1.2 m·kgf, 8.7 ft·lbf) 6.

  • Page 118: Axle Boots

    Check the protective boots for holes or tears. SAE 80 or SAE 80W-90 If any damage is found, have them replaced API “GL-5” Hypoid gear oil for L.S.D. by a Yamaha dealer. (Limited Slip Differential) Oil quantity: Periodic oil change: 0.18 L (0.16 Imp qt, 0.19 US qt)
  • Page 119 1. Boot (× 2) 8-14...

  • Page 120: Spark Plug Inspection

    Do not attempt to diagnose such problems yourself. Instead, take the ATV to a Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.

  • Page 121: Air Filter Cleaning

    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 cover 2.
  • Page 122 4. Remove the air filter element from the 5. Wash the air filter element gently but frame. thoroughly in solvent. WARNING POTENTIAL HAZARD Using low flash point solvents or gaso- line to clean the air filter element. WHAT CAN HAPPEN Low flash point solvents or gasoline can catch fire or explode.
  • Page 123 The air filter element should be cleaned every replace it. 20–40 hours. It should be cleaned and lubri- 8. Apply Yamaha foam air filter oil or other cated more often if the machine is operated in quality foam air filter oil to the air filter el- extremely dusty areas.

  • Page 124: Spark Arrester Cleaning

    EBU01111 Spark arrester cleaning 3. Tap the tailpipe lightly, and then use a Be sure the exhaust pipe and muffler are cool wire brush to remove any carbon depos- before cleaning the spark arrester. its from the spark arrester portion of the 1.

  • Page 125: Carburetor Adjustment

    The carburetor is a vital part of the engine and POTENTIAL HAZARD requires very sophisticated adjustment. Most Improper cleaning of the spark arrester. adjusting should be left to a Yamaha dealer Hot exhaust system who has the professional knowledge and ex- WHAT CAN HAPPEN perience to do so.

  • Page 126: Idle Speed Adjustment

    To prevent this, the valve clear- tion b to decrease the engine speed. ance must be adjusted regularly. This adjust- ment however, should be left to a professional Specified idle speed: Yamaha service technician. 1,450–1,550 r/min 8-21...

  • Page 127: Reverse Lock Release Cable Adjustment

    This adjustment, however, should be left to a Yamaha dealer. 1. Loosen the locknut. 2. Turn the adjusting bolt until the throttle le- ver free play is 3–5 mm (0.12–0.20 in).

  • Page 128: Checking The Front And Rear Brake Pads

    Yamaha dealer replace the brake 1 mm (0.04 in), have a Yamaha dealer re- pads as a set. place the brake pads as a set.

  • Page 129: Brake Fluid Level Check

    EBU13040 Brake fluid level check Rear 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 brake pads and/or brake system leakage.

  • Page 130: Brake Fluid Replacement

    (zero in) at the lever end. If not, mance. have a Yamaha dealer check the brake sys- Be careful that water does not enter the tem. brake fluid reservoir when refilling. Water will significantly lower the boiling point of the fluid and may result in vapor lock.

  • Page 131: Rear Brake And Parking Brake Adjustment

    Replacement of brake components re- 3. Loosen the rear caliper adjusting bolt quires professional knowledge. These locknut. procedures should be performed by a 4. Turn the parking brake cable adjusting Yamaha dealer. bolt so that cable length a is 46–50 mm (1.81–1.97 in). 8-26...
  • Page 132 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. Tightening torque: Caliper adjusting bolt locknut: 15 Nm (1.5 m·kgf, 11 ft·lbf) CAUTION: 1.
  • Page 133 All air must be bled from the brake locknut. system. 8. Turn the rear wheel to make sure there is Replacement of brake components re- no brake drag. quires professional knowledge. These procedures should be performed by a Yamaha dealer. 8-28...

  • Page 134: Adjusting The Rear Brake Light Switch

    EBU00834 EBU00346 Adjusting the rear brake light switch Clutch adjustment The rear brake light switch, which is activated 1. Loosen the locknut. by the brake pedal and brake levers, is prop- 2. Slowly turn the adjusting bolt counter- erly adjusted when the brake light comes on clockwise until resistance is felt.

  • Page 135: Cable Inspection And Lubrication

    If the cables do not operate smoothly, ask a decrease the clutch free play and turn it clock- Yamaha dealer to replace them. wise to increase the free play. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil EBU00356 Cable inspection and lubrication WARNING...

  • Page 136: Wheel Removal

    EBU01112 EBU01121 Wheel removal Wheel installation 1. Loosen the wheel nuts. 1. Install the wheel and the nuts. 2. Elevate the ATV and place a suitable NOTE: stand under the frame. Tapered nuts are used for both the front 3. Remove the nuts from the wheel. and rear wheels.

  • Page 137: Battery

    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 battery on its side. When inspecting the battery, be sure the breather hose is routed correctly.
  • Page 138 HOW TO AVOID THE HAZARD Avoid contact with skin, eyes or cloth- ing. Always shield eyes when working near batteries. Keep out of reach of chil- dren. Antidote: EXTERNAL: Flush with water. INTERNAL: Drink large quantities of wa- ter or milk. Follow with milk of magne- 1.

  • Page 139: Replenishing The Battery Fluid

    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.

  • Page 140: Fuse Replacement

    If the fuse immediately blows again, gravity at least once a month and re- consult a Yamaha dealer. charge the battery when it is too low. Specified fuse: 20 A 7. Always make sure the connections are correct when putting the battery back in the machine.

  • Page 141: Replacing A Headlight Bulb

    EBU01088 Replacing a headlight bulb WARNING If a headlight bulb burns out, replace the bulb POTENTIAL HAZARD as follows. Using an improper fuse. 1. Remove the screws holding the headlight WHAT CAN HAPPEN unit assembly to the headlight body. An improper fuse can cause damage to the electrical system which could lead to a fire.
  • Page 142 2. Remove the bulb holder cover. WARNING 3. Turn the bulb holder counterclockwise to POTENTIAL HAZARD remove the defective bulb. The headlight bulb is hot when it is on and immediately after it is turned off. WHAT CAN HAPPEN You can be burned, or a fire could start if the bulb touches something flamma- ble.

  • Page 143: Headlight Beam Adjustment

    Tail/brake light bulb replacement 1. Open the storage box. (See page 4-15) CAUTION: 2. Remove the nuts together with washers. It is advisable to have a Yamaha dealer make this adjustment. To raise the beam, turn the adjusting screw in direction a.
  • Page 144 3. Remove the bulb holder (together with the bulb) by turning it counterclockwise. 1. Tail/brake light bulb holder 2. Bulb 5. Install a new bulb in the bulb holder by pushing it inward and turning it clockwise. 1. Tail/brake light bulb holder 6.

  • Page 145: Troubleshooting

    EBU00412 Troubleshooting WARNING Although Yamaha machines receive a rigid in- POTENTIAL HAZARD spection before shipment from the factory, Checking the fuel system while smok- trouble may occur during operation. Any prob- ing or near an open flame. lem in the fuel, compression, or ignition sys-...

  • Page 146: Troubleshooting Chart

    Supply fuel. No fuel. 2. Compression There is compression. Compression normal. Use the electric starter to see if there is compression. Ask a Yamaha dealer to No compression. inspect. 3. Ignition Wipe clean with dry cloth. Ignition system Spark good. normal.

  • Page 147: Cleaning And Storage

    EBU00419 CLEANING AND STORAGE CAUTION: Excessive water pressure may cause wa- A. CLEANING ter seepage and deterioration of wheel Frequent, thorough cleaning of your machine bearings, brakes, transmission seals and will not only enhance its appearance but will electrical devices. Many expensive repair improve its general performance and extend bills have resulted from improper high the useful life of many components.
  • Page 148 6. Clean the seat with a vinyl upholstery WARNING cleaner to keep the cover pliable and POTENTIAL HAZARD glossy. Operation with wet brakes after wash- 7. Automotive type wax may be applied to ing. all painted and chrome plated surfaces. WHAT CAN HAPPEN Avoid combination cleaner-waxes.

  • Page 149: Storage

    Do not apply oil to fuel) any rubber parts or the seat cover. NOTE: Use of fuel stabilizer and conditioner elimi- nates the need to drain the fuel system. Con- sult a Yamaha dealer if the fuel system needs to be drained instead.
  • Page 150 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.

  • Page 151: Specifications

    EBU00428 SPECIFICATIONS MODEL YFM350FX Dimensions: Overall length 1,870 mm (73.6 in) Overall width 1,075 mm (42.3 in) Overall height 1,150 mm (45.3 in) Seat height 790 mm (31.1 in) Wheel base 1,230 mm (48.4 in) Minimum ground clearance 220 mm (8.66 in) Minimum turning radius 3,500 mm (138 in) Basic weight:...
  • Page 152 MODEL YFM350FX Engine oil: 0˚ 10˚ 30˚ 70˚ 90˚ 110˚ 130˚F 50˚ Type YAMALUBE 4 (20W40) or SAE 20W40 YAMALUBE 4 (10W30) or SAE 10W30 SAE 5W30 -20˚ -10˚ 0˚ 10˚ 20˚ 30˚ 40˚ 50˚C Recommended engine oil classification: API Service SE, SF, SG type or higher CAUTION: In order to prevent clutch slippage (since the engine oil also lubricates the clutch), do not mix any chemical addi-...
  • Page 153 MODEL YFM350FX Final gear oil: Type SAE80API “GL-4” Hypoid gear oil Quantity: Periodic oil change 0.19 L (0.17 Imp qt, 0.20 US qt) Total amount 0.25 L (0.22 Imp qt, 0.26 US qt) Differential gear oil: Type SAE80 or SAE80W-90 API GL-5 Hypoid gear oil for L.S.D.
  • Page 154 MODEL YFM350FX Transmission: Primary reduction system Spur gear Primary reduction ratio 76/24 (3.167) Secondary reduction system Shaft drive 24/28 × 24/18 × 33/09 (4.190) Secondary reduction ratio Transmission type Constant mesh 5-speed Operation Left foot operation Gear ratio: 38/13 (2.923) 34/18 (1.889) 30/22 (1.364) 26/25 (1.040)
  • Page 155 MODEL YFM350FX Suspension: Front suspension Double wishbone Rear suspension Swingarm (monocross) Shock absorber: Front shock absorber Coil spring / oil damper Rear shock absorber Coil spring / oil damper Wheel travel: Front wheel travel 180 mm (7.1 in) Rear wheel travel 180 mm (7.1 in) Electrical: Ignition system...

  • Page 156: Noise Regulation

    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 incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use or (2) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.

  • Page 157: Maintenance Record

    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 is required. It is not acceptable proof of maintenance work.

  • Page 158: Atv Limited Warranty

    EBU00432 YAMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY 13-1...
  • Page 159 13-2...

  • Page 160: Yamaha Extended Service (Y.e.s.)

    EBU00435 YAMAHA EXTENDED SERVICE (Y.E.S.) 14-1...
  • Page 161 14-2...
  • Page 162 EBU00436 WARNING Indicates a potential hazard that could result in serious injury or death. 14-3...
  • Page 163 EBU00437 14-5...
  • Page 164 LOCATE AND READ OWNER’S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS. (For replacement manual, call 1-800-532-1558) YAMAHA MOTOR CO., LTD. PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2003.03-0.7×1 CR...

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