Yamaha Raptor YFM350S Ower's Manual
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Yamaha Raptor YFM350S Ower's Manual

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See also: Service Manual , Owner's Manual
READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER'S MANUAL
YFM350S
WARNING
This ATV should not be ridden by anyone under 16 years of age.
LIT-11626-17-57
5YT-28199-10

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  • Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM350S WARNING This ATV should not be ridden by anyone under 16 years of age. LIT-11626-17-57 5YT-28199-10...
  • Page 2 EBU00776...
  • Page 3 Yamaha experience in the production of fine sporting, touring, and pacesetting racing ma- chines. With the purchase of this Yamaha, you can now appreciate the high degree of craftsman- ship 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 WARNING...
  • Page 5 Please check your local riding laws and regulations before operating this machine. EBU13340 YFM350S OWNER’S MANUAL AFFIX DEALER ©2003 by Yamaha Motor Corporation, U.S.A. LABEL HERE 1st edition, December 2003 All rights reserved. Any reprinting or unauthorized use without the written...

  • Page 6: Table Of Contents

    EBU00014 CONTROL FUNCTIONS....4-1 WARNING Main switch ........4-1 Indicates a potential hazard that could Indicator lights........4-2 result in serious injury or death. Handlebar switches ......4-2 Throttle lever ........4-4 Speed limiter ........4-5 CONTENTS Clutch lever ........4-6 Brake lever........4-6 Brake pedal........4-7 LOCATION OF THE WARNING Parking brake lever......4-8 AND SPECIFICATION LABELS..
  • Page 7 PRE-OPERATION CHECKS ... 5-1 Parking..........6-9 Front and rear brakes ..... 5-2 Parking on a slope......6-10 Fuel ..........5-4 Accessories and loading ....6-11 Engine oil ........5-6 Chain..........5-6 RIDING YOUR ATV ......7-1 Throttle lever ........5-6 Getting to know your ATV ....
  • Page 8 PERIODIC MAINTENANCE AND Clutch lever free play ADJUSTMENT........8-1 adjustment ........8-27 Owner’s manual and tool kit.... 8-1 Drive chain slack check ....8-29 Periodic maintenance/ Drive chain slack adjustment..8-30 lubrication ........8-3 Lubricating the drive chain.....8-31 Engine oil and oil filter element ..8-5 Cable inspection and Spark plug inspection......
  • Page 9 CLEANING AND STORAGE.... 9-1 A. Cleaning........9-1 B. Storage ........9-3 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

    EBU00464 LOCATION OF THE WARNING AND SPECIFICATION LABELS...
  • Page 11 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. DRIVE SELECT LEVER Read owner’s manual carefully before operating. ATV MUST be stopped before shifting select lever.
  • 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 op- erate 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 9. Fuel cock 2. Seat 10. Rear wheel 3. Drive select lever 11. Shift pedal 4. Fuel tank cap 12. Clutch lever 5. Main switch 13. Parking brake lever 6. Brake pedal 14.

  • 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. EBU00942 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 Lights

    EBU00043 EBU00053 Indicator lights Handlebar switches 1. Reverse indicator light “R” 1. Light switch “ /OFF” 2. Neutral indicator light “N” 2. Engine stop switch “ ” 3. Start switch “ ” EBU14930 Reverse indicator light “R” EBU12040 Light switch “ /OFF”...
  • Page 25 EBU06070 Start switch “ ” CAUTION: The starter motor cranks the engine when this Do not use the headlights with the engine switch is pushed. turned off for more than thirty minutes. CAUTION: The battery may discharge to the point that the starter motor will not operate See starting instructions prior to starting properly.

  • Page 26: 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 27: Speed Limiter

    EBU01159 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 28: Clutch Lever

    EBU00069 EBU00988 Clutch lever Brake lever The clutch lever is located on the left handle- The brake lever is located on the right handle- bar and the ignition circuit cut-off system is in- bar. Pull it toward the handlebar to apply the corporated in the clutch lever holder.

  • Page 29: Brake Pedal

    EBU00989 Brake pedal The brake pedal is located on the right side of the machine. Push down on the pedal to apply the rear brake. 1. Brake pedal...

  • Page 30: Parking Brake Lever

    EBU13870 Parking brake lever Use the parking brake when you have to start the engine or park the machine, especially on a slope. To apply the parking brake, move the parking brake lever in direction a. To release the parking brake, move the parking brake le- ver in direction b.

  • Page 31: Shift Pedal

    EBU00082 Shift pedal WARNING This machine is equipped with a constant- POTENTIAL HAZARD mesh 6-speed transmission. The shift pedal is Improper use of the parking brake. located on the left side of the engine and is WHAT CAN HAPPEN used in combination with the clutch when The ATV could start moving unexpect- shifting.

  • Page 32: Drive Select Lever

    EBU00085 EBU00092 Drive select lever Fuel tank cap The drive select lever is used for driving the Remove the fuel tank cap by turning it coun- machine either forward or in reverse. Refer to terclockwise. page 6-4 for drive select lever operation. 1.

  • Page 33: Fuel Cock

    EBU00930 Fuel cock OFF Position 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 lever to this position when the engine is not running.

  • Page 34: Starter (Choke)

    EBU00950 Starter (choke) “ ” RES Position 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).

  • Page 35: 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 36: Front Shock Absorber Adjustment

    Front shock absorber adjustment A special wrench can be obtained at a The spring preload can be adjusted to suit the Yamaha dealer to make this adjustment. rider’s weight and riding conditions. Adjust the spring preload as follows. Standard position: C To increase the spring preload, turn the ad- justing ring in direction a.
  • Page 37 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 38: Rear Shock Absorber Adjustment

    2. To increase the spring preload, turn the A special wrench can be obtained at a adjusting nut in direction a. To decrease Yamaha dealer to make this adjustment. the spring preload, turn the adjusting nut in direction b. 1. Special wrench 3.
  • Page 39 Measurement A: CAUTION: Installed length: Always tighten the locknut against the ad- Minimum (hard): 218.5 mm (8.6 in) justing nut and tighten it to the specified Standard: 228.5 mm (9.0 in) torque. Maximum (soft): 233.5 mm (9.2 in) A. Spring length 4.
  • Page 40 Do not deform or damage the cylin- der in any way. EBU00112 Do not dispose of a damaged or WARNING worn out shock absorber yourself. Take the unit to a Yamaha dealer. Indicates a potential hazard that could 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, fluid level and fluid leakage. 5-2–5-3, Brakes • Fill with DOT 4 brake fluid if necessary. 8-19–8-24 Clutch • Check operation, condition and lever free play. 8-27–8-28 Parking brake •...

  • Page 42: Front And Rear Brakes

    POTENTIAL HAZARD Check that there is no free play in the brake Failure to inspect the ATV before oper- lever. If there is free play, have a Yamaha ating. dealer inspect the brake system. Failure to properly maintain the ATV.
  • Page 43 Riding with improperly operating the brakes firmly for one minute. If there is any brakes. leakage, have a Yamaha dealer inspect the WHAT CAN HAPPEN brake system. You could lose braking ability, which Brake operation could lead to an accident.

  • 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. by Yamaha because it may cause fuel system Fuel expands when it heats up. If the damage or vehicle performance problems. fuel tank is overfilled, fuel could spill out due to heat from the engine or the sun.

  • Page 46: Engine Oil

    Fittings and fasteners Always check the tightness of chassis fittings Recommended engine oil type and and fasteners before a ride. Take the machine quantity: to a Yamaha dealer or refer to the Service See page 10-2. Manual for correct tightening torque.

  • Page 47: Lights

    Lights Check the headlights and tail/brake light to make sure they are in working condition. Re- pair as necessary for proper operation. EBU01170 Switches Check the operation of all switches. Have a Yamaha dealer repair as necessary for proper operation.

  • Page 48: Tires

    The following are minimums: 1. The tires listed below have been ap- Front 22 kPa (0.22 kgf/cm , 3.2 psi) proved by Yamaha Motor Co., Ltd. Rear 22 kPa (0.22 kgf/cm , 3.2 psi) for this model. Other tire combina- tions are not recommended.

  • Page 49: How To Measure Tire Pressure

    Set pressure with tires cold. 4. Use no more than the following Set tire pressures to the following specifica- pressures when seating the tire tions: beads. Front 250 kPa (2.5 kgf/cm , 36 psi) Recommended Minimum Maximum pressure Rear 250 kPa (2.5 kgf/cm , 36 psi) Higher pressures may cause the 25 kPa...

  • Page 50: 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 5-10...

  • Page 51: 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 “ ”. 4. Shift the transmission into neutral.
  • Page 52 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. When the clutch is disengaged with the transmission and the drive select lever in any position.

  • Page 53: Starting A Warm Engine

    EBU00180 Starting a warm engine NOTE: If the engine fails to start, release the start To start a warm engine, refer to the “Starting a switch, then push it again. Pause a few sec- cold engine” section. The starter (choke) onds before the next attempt.

  • Page 54: Drive Select Lever Operation And Reverse Driving

    If the light does not come on, CAUTION: ask a Yamaha dealer to inspect the machine. Before shifting, stop the machine and re- 5. Check behind you for people or obsta- turn the throttle lever to its closed posi- cles, and then release the brake pedal.

  • Page 55: Shifting

    EBU01173 Shifting WARNING This model has a 6-speed forward and POTENTIAL HAZARD 1-speed reverse transmission. The transmis- Improperly operating in reverse. sion allows you to control the amount of pow- WHAT CAN HAPPEN er you have available at a given speed or for You could hit an obstacle or person be- starting, accelerating, climbing hills, etc.

  • Page 56: To Start Out And Accelerate

    EBU14190 To start out and accelerate: CAUTION: 1. Release the throttle lever, and then re- Do not coast for long periods with the lease the parking brake. engine off, and do not tow the ma- chine a long distance. Even in neutral CAUTION: position, the transmission is only Always close the throttle while shifting...

  • Page 57: To Decelerate

    EBU00207 8. Follow the same procedure when shifting To decelerate: to the next higher gear. When slowing down or stopping, release the throttle and apply the brakes smoothly and WARNING evenly. As you slow down, shift to a lower POTENTIAL HAZARD gear.

  • Page 58: Engine Break-In

    Because the engine is If any abnormality is noticed during this peri- brand new, you must not put an excessive od, consult a Yamaha dealer. load on it for the first several hours of running. 0–10 hours:...

  • Page 59: Parking

    EBU00211 Parking When parking, stop the engine and shift into neutral. Turn the fuel cock to “OFF” and apply the parking brake. 1. Locked position...

  • Page 60: Parking On A Slope

    EBU14730 Parking on a slope 3. Stop the engine by setting the engine stop switch to “ ”. WARNING 4. With the front and rear brakes applied, POTENTIAL HAZARD pull the clutch lever, shift into 1st gear, Parking on a hill or other incline. and then slowly release the clutch lever, WHAT CAN HAPPEN brake lever and 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 EBU00584 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 EBU13552 WARNING Indicates a potential hazard that could result in serious injury or death. 6-14...

  • 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 operation of the controls. Pay particular atten- This ATV is intended for recreational use by tion to the safety information on pages 2-1– experienced operators only.

  • 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 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. POTENTIPOTENTIAL 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 As originally equipped, this ATV is not de- POTENTIAL HAZARD signed to carry cargo or tow a trailer. If you Overloading this ATV or carrying or tow- choose to add accessories so that you can ing cargo improperly. carry cargo or tow a trailer, you must use WHAT CAN HAPPEN common sense and good judgment.
  • 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, pull the clutch lever to miliar with your ATV. Make sure that this area disengage the clutch and shift into 1st gear, is free of obstacles and other riders. You and then release the parking brake.
  • Page 86 When slowing down or stopping, release the WARNING throttle and apply the brakes smoothly and POTENTIAL HAZARD evenly. As you slow down, shift to a lower Opening the throttle abruptly or releas- gear. Be sure that the engine has sufficiently ing the clutch lever too quickly.

  • 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 WARNING Traversing a sloping surface on your ATV re- POTENTIAL HAZARD quires you to properly position your weight to Improperly crossing hills or turning on maintain proper balance. Be sure that you hills. have learned the basic riding skills on flat WHAT CAN HAPPEN ground before attempting to cross a sloping Could cause loss of control or cause the...
  • Page 97 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 EBU01221 obligation of the machine owner.
  • Page 107 HOW TO AVOID THE HAZARD during a service operation requiring one, take Never modify this ATV through improp- your machine to a Yamaha dealer to check er installation or use of accessories. All the torque settings and adjust them as neces- parts and accessories added to this ve- 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. * Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service. NOTE: Recommended brake fluid: DOT4 Brake fluid replacement: •...

  • Page 110: Engine Oil And Oil Filter Element

    EBU11812 Engine oil and oil filter element 5. If the engine oil is at or below the mini- The engine oil level should be checked before mum level mark, add sufficient oil of the each ride. In addition, the oil must be changed recommended type to raise it to the cor- and the oil filter element cleaned at the inter- rect level.
  • Page 111 6. Insert the dipstick into the oil filler hole, and then tighten the engine oil filler cap. To change the engine oil (with or without oil filter element cleaning) 1. Place the ATV on a level surface. 2. Warm up the engine for several minutes, and then turn it off.
  • Page 112 5. Remove the oil filter cover by removing 9. Install the oil filter cover by installing the the bolts, and then remove the oil filter el- bolts, and then tighten them to the speci- ement. fied torque. 6. Clean the oil strainer and oil filter element Tightening torque: with solvent.
  • Page 113 11. Add the specified amount of the recom- CAUTION: mended engine oil, and then install and In order to prevent clutch slippage tighten the engine oil filler cap. (since the engine oil also lubricates the clutch), do not mix any chemical Recommended oil: additives.

  • Page 114: Spark Plug Inspection

    EBU14550 Spark plug inspection Removal 1. Remove the spark plug cap. 1. Spark plug wrench Inspection The spark plug is an important engine compo- nent and is easy to inspect. The condition of 1. Spark plug cap the spark plug can indicate the condition of 2.
  • Page 115 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. If electrode erosion becomes ex- cessive, or if carbon and other deposits are excessive, you should replace the spark plug with the specified plug.

  • Page 116: Air Filter Element Cleaning

    EBU14920 Air filter element cleaning NOTE: If a torque wrench is not available when you NOTE: are installing a spark plug, a good estimate of There is a check hose at the bottom of the air the correct torque is 1/4 to 1/2 turn past finger filter case.
  • Page 117 1. Air filter case cover 2. Holder (× 4) 1. Air filter element assembly 3. Remove the air filter element assembly, and then remove the air filter element from its frame. 8-12...
  • Page 118 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. HOW TO AVOID THE HAZARD Use parts cleaning solvent to clean the 1.
  • Page 119 7. Apply Yamaha foam air filter oil or other NOTE: The air filter element should be cleaned every quality foam air filter oil to the air filter el- 20–40 hours. It should be cleaned and lubri- ement. cated more often if the machine is operated in NOTE: extremely dusty areas.

  • Page 120: Spark Arrester Cleaning

    EBU01111 Spark arrester cleaning Be sure the exhaust pipe and muffler are cool before cleaning the spark arrester. 1. Remove the bolt. 1. Tailpipe 2. Spark arrester 4. Insert the tailpipe into the muffler and align the bolt holes. 5. Install and tighten the bolt. 1.

  • Page 121: 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 122: 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 8-17...

  • Page 123: Throttle Lever Adjustment

    EBU00307 Throttle lever adjustment NOTE: Adjust the engine idling speed before adjust- ing the throttle lever free play. 1. Loosen the locknut. 2. Turn the adjusting bolt until the throttle le- ver free play is 2–4 mm (0.08–0.16 in). 3. Tighten the locknut. 1.

  • Page 124: Front Brake Pad Inspection

    If a brake pad is worn to the point that the wear indicator groove is almost in contact with the disc plate, ask a Yamaha dealer to replace the brake pads as a set. Front 1.

  • Page 125: Rear Brake Pad Inspection

    A low brake fluid level may indi- groove is almost in contact with the disc plate, cate worn brake pads and/or brake system ask a Yamaha dealer to replace the brake leakage. If the brake fluid level is low, be sure pads as a set.
  • Page 126 Always clean up spilled 1. Minimum level mark fluid immediately. Observe these precautions: Have a Yamaha dealer check the cause if When checking the brake fluid level, make the brake fluid level goes down. sure the top of the brake fluid reservoir is level.

  • Page 127: Brake Fluid Replacement

    Brake fluid replacement Complete fluid replacement should be done only by trained Yamaha service personnel. Have a Yamaha dealer replace the following components during periodic maintenance or when they are damaged or leaking. Replace the oil seals every two years.

  • Page 128: Front Brake Lever Free Play

    The front brake lever should have a free play POTENTIAL HAZARD of zero mm (zero in) at the lever end. If not, Operating with improperly serviced or have a Yamaha dealer check the brake sys- adjusted brakes. tem. WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident.

  • Page 129: Brake Pedal Height Adjustment

    50.2 mm (1.98 in) above the top of the Operating with improperly serviced or frame as shown. If the brake pedal is not posi- adjusted brakes. tioned as specified, have a Yamaha dealer WHAT CAN HAPPEN adjust it. You could lose braking ability, which could lead to an accident.

  • Page 130: Parking Brake Adjustment

    EBU14711 Parking brake adjustment 1. Release the parking brake by moving the Parking brake adjustment may be required if parking brake lever to the right. the parking brake does not hold properly. The 2. Fully loosen the locknut and the adjusting cable length A should be adjusted to 64–...
  • Page 131 NOTE: WARNING If the cable cannot be adjusted to specifica- tion, consult a Yamaha dealer. POTENTIAL HAZARD Operating with improperly adjusted 5. Tighten the locknut on the brake cable. brakes. 6. Screw in the adjusting bolt at the rear WHAT CAN HAPPEN...

  • Page 132: Adjusting The Rear Brake Light Switch

    EBU00833 EBU00741 Adjusting the rear brake light switch Clutch lever free play adjustment The rear brake light switch, which is activated The clutch lever free play should be adjusted by the brake pedal and brake lever, is proper- to 5–10 mm (0.20–0.39 in). ly adjusted when the brake light comes on just 1.
  • Page 133 4. Loosen the locknut at the clutch lever. 6. Loosen the locknut at the crankcase 5. Turn the adjusting bolt at the clutch lever side. in direction a to loosen the cable. 7. Turn the adjusting nut at the crankcase in direction a to increase the free play or in direction b to decrease the free play.

  • Page 134: Drive Chain Slack Check

    EBU01144 Drive chain slack check NOTE: Move the ATV back and forth and find the tightest position of the drive chain. Check and/ or adjust the chain slack while it is in this tight- est position. To check the drive chain slack, all tires must be touching the ground and there should be no weight on it.

  • Page 135: Drive Chain Slack Adjustment

    EBU14990 Drive chain slack adjustment NOTE: There are alignment marks on each side of 1. Loosen the rear wheel hub upper and the swingarm and on the hub. Use them to lower bolts. check for proper wheel axle alignment. 1. Upper wheel hub bolt 2.

  • Page 136: Lubricating The Drive Chain

    EBU00805 Lubricating the drive chain Tightening torques: The drive chain must be cleaned and lubricat- Locknut: ed at the intervals specified in the periodic 16 Nm (1.6 m·kgf, 12 ft·lbf) maintenance and lubrication chart, otherwise Upper wheel hub bolt: it will quickly wear out, especially when riding 120 Nm (12.0 m·kgf, 86 ft·lbf) in dusty or wet areas.
  • Page 137 CAUTION: Do not use engine oil or any other lubri- cants for the drive chain, as they may contain substances that could damage the O-rings. 1. O-rings 8-32...

  • Page 138: Cable Inspection And Lubrication

    WARNING Yamaha dealer to replace them. POTENTIAL HAZARD Damaged control cables. Recommended lubricant: Yamaha chain and cable lube or WHAT CAN HAPPEN Corrosion can result when the outer SAE 10W30 motor oil covering of control cables becomes damaged. Cables can also become EBU00737 frayed or kinked.
  • Page 139 8-34...

  • Page 140: Front Upper And Lower Arm Pivot Lubrication

    EBU01018 Front upper and lower arm pivot Left lubrication Lubricate the upper and lower arm pivots. Recommended lubricant: Lithium-soap-based grease Right 1. Upper grease nipple (× 2) 2. Lower grease nipple (× 2) 1. Upper grease nipple (× 2) 2. Lower grease nipple (× 2) 8-35...

  • Page 141: Rear Arm Pivot Lubrication

    EBU00987 Rear arm pivot lubrication Lubricate the rear arm pivots. Recommended lubricant: Lithium-soap-based grease 1. Grease nipple 1. Grease nipple 1. Grease nipple 8-36...

  • Page 142: Wheel Removal

    EBU01112 Wheel removal Rear 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. Front 1. Nut (× 4) 1. Nut (× 4) 8-37...

  • Page 143: Wheel Installation

    EBU08710 Wheel installation When installing the wheel, reverse the remov- al procedure. Tighten the wheel nuts to the specified torques. Tightening torques: Wheel nut: Front: 45 Nm (4.5 m·kgf, 33 ft·lbf) Rear: 45 Nm (4.5 m·kgf, 33 ft·lbf) 8-38...

  • Page 144: Battery

    Therefore it is not necessary to check the electrolyte or add distilled water in the bat- tery. If the battery seems to have discharged, consult a Yamaha dealer. CAUTION: Do not try to remove the sealing caps of the battery cells. You may damage the bat- tery.

  • Page 145: Battery Maintenance

    EBU03850 Battery maintenance HOW TO AVOID THE HAZARD 1. When the machine is not used for a Avoid contact with skin, eyes or cloth- month or longer, remove the battery and ing. Always shield eyes when working store it in a cool, dark place. Completely near batteries.

  • Page 146: Fuse Replacement

    Then turn on the switch- An improper fuse can cause damage to es. If the fuse immediately blows again, the electrical system which could lead consult a Yamaha dealer. to a fire. Specified fuse: 15 A HOW TO AVOID THE HAZARD Always use a fuse of the specified rat- ing.

  • Page 147: Replacing A Headlight Bulb

    EBU14721 Replacing a headlight bulb If a headlight bulb burns out, replace it as fol- lows. 1. Remove the headlight bulb holder cover at the rear of the headlight by pulling it off. 1. Headlight bulb holder 1. Headlight bulb holder cover 2.
  • Page 148 3. Remove the defective bulb from the 4. Install a new headlight bulb into the head- headlight unit by pulling it out. light unit by aligning the projection on the bulb with the groove in the headlight unit. WARNING POTENTIAL HAZARD A headlight bulb is hot when it is on and immediately after it is turned off.
  • Page 149 CAUTION: Do not touch the glass part of the head- light bulb to keep it free from oil, otherwise the transparency of the glass, the luminos- ity of the bulb, and the bulb life will be ad- versely affected. Thoroughly clean off any dirt and fingerprints on the headlight bulb using a cloth moistened with alcohol or thinner.

  • Page 150: Headlight Beam Adjustment

    EBU12170 Headlight beam adjustment Tail/brake light bulb replacement CAUTION: It is advisable to have a Yamaha dealer make this adjustment. To raise the beam, turn the adjusting bolt in di- rection a. To lower the beam, turn the adjusting bolt in direction b.
  • Page 151 1. Bulb 3. Install a new bulb by pushing it inward and turning it clockwise. 4. Install the lens by installing the screws. CAUTION: Do not overtighten the screws as the lens may break. 8-46...

  • Page 152: 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 153: Troubleshooting Chart

    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 is Spark is good.

  • Page 154: Cleaning And Storage

    EBU00417 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 155 7. Clean the seat with a vinyl upholstery WARNING cleaner to keep the cover pliable and POTENTIAL HAZARD glossy. Operation with wet brakes after wash- 8. Automotive type wax may be applied to ing. all painted and chrome plated surfaces. WHAT CAN HAPPEN Avoid combination cleaner-waxes.

  • Page 156: Storage

    Do not apply oil to NOTE: any rubber parts or the seat cover. 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 157 8. 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 158: Specifications

    EBU00428 S PECIFICATIONS MODEL YFM350 Dimension: Overall length 1,770 mm ( 69.7 in) Overall width 1,095 mm ( 43.1 in) Overall height 1,080 mm ( 42.5 in) Seat height 820 mm ( 32.3 in) Wheel base 1,210 mm ( 47.6 in) Ground clearance 115 mm ( 4.53 in) Minimum turning radius...

  • Page 159: Recommended Engine Oil Classification

    MODEL YFM350 Engine oil: 0˚ 90˚ 110˚ 130˚F 10˚ 30˚ 50˚ 70˚ Type YAMALUBE 4 (20W40) or SAE 20W40 YAMALUBE 4 (10W30) or SAE 10W30 SAE 5W30 -20˚ 30˚ 40˚ 50˚C -10˚ 0˚ 10˚ 20˚ Recommended engine oil classification: API Service SE, SF, SG type or higher CAUTION: In order to prevent clutch slippage (since the en- gine oil also lubricates the clutch), do not mix any...
  • Page 160 MODEL YFM350 Air filter: Wet element Fuel: Type UNLEADED GASOLINE ONLY Tank capacity 9.0 L (1.98 Imp gal, 2.38 US gal) Reserve amount 2.7 L (0.59 Imp gal, 0.71 US gal) Carburetor: Type × quantity BSR36 × 1 Manufacturer MIKUNI Spark plug: Type/manufacturer DR8EA / NGK...
  • Page 161 MODEL YFM350 Gear ratio: 36/16 × 20/27 × 29/18 (2.685) 33/20 × 20/27 × 29/18 (1.969) 29/23 × 20/27 × 29/18 (1.504) 27/26 × 20/27 × 29/18 (1.239) 25/28 × 20/27 × 29/18 (1.065) 23/29 × 20/27 × 29/18 (0.946) 33/16 ×...
  • Page 162 MODEL YFM350 Wheel travel: Front 200.0 mm (7.87 in) Rear 210.0 mm (8.27 in) Electrical: Ignition system D.C. C.D.I. Generator system A.C. magneto Battery type/voltage capacity YTZ10S/12V, 8.6Ah Headlight type: Krypton bulb Bulb voltage, wattage × quantity: 12V, 30W/30W × 2 Headlight 12V, 5W/21W ×...

  • Page 163: Noise Regulation

    EBU00430 N OISE 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 164: Maintenance Record

    EBU13651 M AINTENANCE 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 165: Atv Limited Warranty

    EBU00432 YAMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY 13-1...
  • Page 166 13-2...

  • Page 167: Yamaha Extended Service (Y.e.s.)

    EBU00435 Y AMAHA EXTENDED SERVICE (Y.E.S.) 14-1...
  • Page 168 14-2...
  • Page 169 EBU00436 WARNING Indicates a potential hazard that could result in serious injury or death. 14-3...
  • Page 170 EBU00437 14-5...
  • Page 171 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 2003.12-2.0×1 CR...

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