Yamaha BANSHEE YFZ350M 1999 Owner's Manual
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Yamaha BANSHEE YFZ350M 1999 Owner's Manual

Yamaha BANSHEE YFZ350M 1999 Owner's Manual

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READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER'S MANUAL
YFZ350M
w
This ATV should not be ridden by anyone under 16 years of age.
LIT-11626-13-09
5FK-28199-12

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Summary of Contents for Yamaha BANSHEE YFZ350M 1999

  • Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFZ350M This ATV should not be ridden by anyone under 16 years of age. LIT-11626-13-09 5FK-28199-12...
  • Page 3 EBU00007 INTRODUCTION Congratulations on your purchase of the Yamaha YFZ350. It represents the result of many years of Yamaha experience in the production of fine sporting, touring, and pacesetting racing machines. With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields.
  • Page 4 EBU00010 IMPORTANT MANUAL INFORMATION FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS INJURY OR DEATH. Particularly important information is distinguished in this manual by the following nota- tions: The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Failure to follow WARNING instructions could result in severe injury or death to the machine operator, a bystander or a person inspecting or...
  • Page 5 Please check your local riding laws and regulations before operating this machine. EBU00012 YFZ350M OWNER’S MANUAL AFFIX DEALER ©1999 by Yamaha Motor Corporation, LABEL HERE U.S.A. 1st Edition, March 1999 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A.

  • Page 6: Table Of Contents

    EBU00014 Indicates a potential hazard that could result in serious injury or death. CONTENTS LOCATION OF THE WARNING AND CONTROL FUNCTIONS ......4-1 SPECIFICATION LABELS ....1-1 Main switch ........4-1 Handlebar switches ......4-2 Throttle lever ........4-3 Throttle OverRide System ....4-4 SAFETY INFORMATION .....2-1 Speed limiter ........4-4 Clutch lever ........4-6 Front brake lever ......4-6...
  • Page 7 Seat..........4-12 OPERATION .........6-1 Front shock absorber Starting a cold engine .....6-1 adjustment ........4-13 Starting a warm engine ....6-3 Rear shock absorber Warming up ........6-3 adjustment ........4-14 Shifting ..........6-4 To start out and accelerate .....6-5 To decelerate........6-6 Engine break-in........6-7 PRE-OPERATION CHECKS....5-1 Parking ..........6-8 Front and rear brakes ......5-3 Parking on a slope ......6-9...
  • Page 8 Crossing a slope ......7-32 Front and rear brake pad Crossing through shallow water ..7-34 inspection........8-26 Riding over rough terrain .....7-36 Inspecting the brake fluid level ..8-27 Sliding and skidding .....7-38 Brake fluid replacement ....8-28 What to do if.........7-40 Front brake lever free play What to do...
  • Page 9 Headlight beam adjustment .....8-40 Troubleshooting ........8-41 Troubleshooting chart.......8-42 No spark ..........8-43 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...

  • Page 10: Location Of The Warning And

    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 NEVER ride as a passenger. Passengers can cause a loss of control, resulting in SEVERE INJURY or DEATH. 5FE-2151H-01 5FE-2151H-40 5FK-21696-01 5FE-21568-01...
  • Page 12 5FE-21697-01...

  • Page 13: Safety Information

    EBU00026 SAFETY INFORMATION AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE. An ATV handles different- ly 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 obsta- cles, if you fail to take proper precautions.
  • Page 14 8 Always avoid operating an ATV on any paved surfaces, including sidewalks, driveways, parking lots and streets. 8 Never operate an ATV on any public street, road or highway, even a dirt or gravel one. 8 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 8 Never operate on excessively rough, slippery or loose terrain until you have learned and practiced the skills necessary to control the ATV on such terrain. Always be especially cautious on these kinds of terrain. 8 Always follow proper procedures for turning as described in this manual. Practice turn- ing at low speeds before attempting to turn at faster speeds.
  • Page 16 8 Always use proper procedures if you stall or roll backwards when climbing a hill. To avoid stalling, use proper gear and maintain a steady speed when climbing a hill. If you stall or roll backwards, 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 8 Never exceed the stated load capacity for an ATV. Cargo should be properly distributed and securely attached. Reduce speed and follow instructions in this manual for carrying cargo or pulling a trailer. Allow greater distance for braking. FOR MORE INFORMATION ABOUT ATV SAFETY, call the Consumer Products Safety Commission at 1-800-638-2772, or the ATV Distributor’s Safety Hotline at 1-800-852-5344.
  • Page 18 q WARNING When transporting the machine in another vehicle, be sure it is kept POTENTIAL HAZARD upright and that the fuel cock is in the Improper handling of gasoline. “OFF” position. Otherwise, fuel may WHAT CAN HAPPEN leak out of the carburetor or fuel tank. Gasoline can catch fire and you could be WHAT CAN HAPPEN burned.
  • Page 19 q 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 machine in an area with adequate ventilation.

  • Page 20: Description And Machine Identification

    EBU00032 DESCRIPTION AND MACHINE IDENTIFICATION 1. Seat 11. Spark arrester 2. Kick starter 12. Rear wheel 3. Fuel tank cap 13. Starter (choke) 4. Headlight 14. Shift pedal !6 5 5. Brake pedal 15. Clutch lever 6. Front wheel 16. Parking brake 7.

  • Page 21: Identification Number Records

    This number can be used for order- assistance when ordering spare parts from ing a new key. a Yamaha dealer or for reference in case the vehicle is stolen. 1. KEY IDENTIFICATION NUMBER: 2. VEHICLE IDENTIFICATION NUMBER: 1.

  • Page 22: Vehicle Identification Number

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

  • Page 23: Control Functions

    EBU00039 CONTROL FUNCTIONS Indicates a potential hazard that could result in serious injury or death. EBU00041 Main switch Functions of the respective switch posi- tions are as follows: Engine can be started only at this position and the headlight and taillight come on when the light switch is on.

  • Page 24: Handlebar Switches

    EBU00053 EBU00057 Handlebar switches Lights switch “LIGHTS” Turn the switch to “LO” for the low beam and the taillight. Turn the switch to “HI” for the high beam and the taillight. NOTE: The headlight and taillight can be turned on only when the engine is started. 1.

  • Page 25: 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 can’t find or solve the problem yourself. 1. Throttle lever...

  • Page 26: Throttle Override System

    1. Locknut 2. Adjuster a. 12 mm (0.47 in) HOW TO AVOID THE HAZARD Make sure that the cause of the mal- function is corrected before restarting the engine. You should have the ATV inspected by a Yamaha dealer.
  • Page 27 q WARNING POTENTIAL HAZARD Improper adjustment of the speed lim- iter and throttle. WHAT CAN HAPPEN The throttle cable could be damaged. Improper throttle operation could result. You could lose control, have an accident or be injured. HOW TO AVOID THE HAZARD Do not turn the speed adjuster out more than 12 mm (0.47 in).

  • Page 28: Clutch Lever

    EBU00068 EBU00070 Clutch lever Front brake lever The clutch lever is located on the left han- The front brake lever is located on the right dlebar. handlebar. Pull it toward the handlebar to Pull the clutch lever to the handlebar to apply the front brake.

  • Page 29: Rear Brake Pedal

    EBU00071 EBU00080 Rear brake pedal Parking brake The brake pedal is located on the right side Use the parking brake when you have to of the machine. Push down on the pedal to start the engine or park the machine, espe- apply the rear brake.
  • Page 30 q 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. 1.

  • Page 31: Shift Pedal

    EBU00082 EBU00089 Shift pedal Kick starter This machine is equipped with a constant- Rotate the kick starter away from the mesh 6-speed transmission. The shift engine. Push the starter down lightly with pedal is located on the left side of the your foot until the gears engage, then kick engine and is used in combination with the smoothly and forcefully to start the engine.

  • Page 32: Fuel Tank Cap

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

  • Page 33: Starter (Choke)

    EBU00094 Starter (choke) Starting a cold engine requires a richer air- fuel mixture. A separate starter circuit sup- plies this mixture. a to turn on the starter Move in direction (choke). Move in direction b to turn off the starter (choke).

  • Page 34: Seat

    EBU00566 Seat To install the seat, insert the projection on To remove the seat, pull the seat lock lever the front of the seat into the seat holder upward and pull up the seat at the rear. and push down on the seat at the rear. NOTE: Make sure that the seat is securely fitted.

  • Page 35: Front Shock Absorber Adjustment

    EBU00635 Front shock absorber adjustment Standard position: C The spring preload can be adjusted to suit A - Minimum (Soft) the rider’s weight and riding conditions. E - Maximum (Hard) Adjust the spring preload as follows: To increase the spring preload, turn the q WARNING adjuster in direction a.

  • Page 36: Rear Shock Absorber Adjustment

    4. Do not dispose of a damaged or absorber can be adjusted to suit the rider’s worn out shock absorber yourself. weight and riding conditions. Take the unit to a Yamaha dealer. q WARNING 1. Adjust spring preload as follows. POTENTIAL HAZARD a.
  • Page 37 c. The length of the spring (installed) changes 1 mm (0.04 in) per turn of Never attempt to turn the adjuster beyond the adjuster. the maximum or minimum setting. Installed length: Measurement “A” d. Tighten the locknut to the specified Standard: 220.5 mm (8.7 in) torque.
  • Page 38 2. Adjust rebound damping force as fol- From the fully turned-in position lows. Standard: 10 clicks out Turn the adjuster in direction a to Minimum (Soft): 20 clicks out increase rebound damping force and in Maximum (Hard): 0 clicks out direction b to decrease rebound damp- ing force.
  • Page 39 From the fully turned-out position Standard : 10 clicks in Never attempt to turn the adjuster beyond Minimum (Soft): 0 clicks in the maximum or minimum setting. Maximum (Hard): 20 clicks in q WARNING POTENTIAL HAZARD Suspension components become hot during operation.

  • Page 40: Pre-Operation Checks

    PRE-OPERATION CHECKS Before using this machine, check the following points: ITEM ROUTINE PAGE 9 Check operation, free play, fluid level and fluid leakage. 5-3 ~ 5-4 Brakes 9 Fill with DOT 4 (or DOT 3) brake fluid if necessary. 8-26 ~ 8-30 9 Check operation, condition and lever free play.
  • Page 41 q WARNING POTENTIAL HAZARD Failure to inspect the ATV before operat- ing. Failure to properly maintain the ATV. WHAT CAN HAPPEN Increases the possibility of an accident or equipment damage. HOW TO AVOID THE HAZARD Always inspect your ATV each time you use it to make sure the ATV is in safe operating condition.

  • Page 42: Front And Rear Brakes

    Check for correct rear brake used. pedal height. If the pedal height is incorrect, have a Yamaha dealer adjust 3. Brake fluid leakage Check to see if any brake fluid is leak- ing out of the pipe joints or master Check the operation of the lever and cylinders.
  • Page 43 Always check the brakes at the start of every ride. Do not ride the ATV if you find any problem with the brakes. If a problem cannot be corrected by the adjustment procedures provided in this manual, have the ATV inspected by a Yamaha dealer.

  • Page 44: Fuel

    EBU00129 Fuel Your Yamaha engine has been designed to Make sure there is sufficient gasoline in the use premium unleaded gasoline with a tank. pump octane number ([R+M]/2) of 90 or higher, or research octane number of 95 or Recommended fuel: higher.

  • Page 45: Engine Mixing Oil

    EBU00132 q WARNING Engine mixing oil POTENTIAL HAZARD Recommended oil: Improper care when refueling. Yamalube “R” (Yamalube Racing 2-cycle oil) WHAT CAN HAPPEN Mixing ratio: 24:1 Fuel can spill, which can cause a fire and severe injury. If Yamalube “R” oil is not available, select Fuel expands when it heats up.

  • Page 46: Transmission Oil

    EBU00488 EBU00496 Transmission oil Coolant Make sure the transmission oil is at the Check the coolant level in the reservoir specified level. Add oil as necessary. (See tank when the engine is cold. (The coolant pages 8-5 ~ 8-7.) level will vary with engine temperature.) The coolant level is satisfactory if it is Recommended oil: between the “FULL”...
  • Page 47 q WARNING POTENTIAL HAZARD Removing the radiator cap when the engine and radiator are still hot. WHAT CAN HAPPEN You could be burned by hot fluid and steam blown out under pressure. HOW TO AVOID THE HAZARD 1. Maximum level mark “FULL” Wait for the engine to cool before 2.

  • Page 48: Chain

    Repair as necessary for proper operation. EBU00152 Fittings and Fasteners Always check the tightness of chassis fit- tings and fasteners before a ride. Take the machine to a Yamaha dealer or refer to the Service Manual for correct tightening torque.

  • Page 49: Tires

    Rear 27 kPa (0.27 kgf/cm , 3.9 psi) 1. The tires listed below have been 4. Use no more than the following approved by Yamaha Motor Co., Ltd. pressures when seating the tire for this model. Other tire combina- beads.

  • Page 50: How To Measure Tire Pressure

    EBU00159 How to measure tire pressure Set pressure with tires cold. Use the low-pressure tire gauge. Set tire pressures to the following specifi- cations: NOTE: Recommended Minimum Maximum The low-pressure tire gauge is included as pressure standard equipment. Make two measure- 30 kPa 27 kPa 33 kPa...

  • 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. 3 mm (0.12 in) 5-12...

  • 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 understand, ask your Yamaha dealer. engine stop switch to “RUN”. 4. Shift the transmission into neutral.
  • Page 53 1: Cold engine start- Position 6. Completely close the throttle lever and ambient temperature below start the engine by kicking the kick 5°C (40°F). starter. Position 2: Cold engine start- 7. If the engine is started with the starter ambient temperature at 0°C (choke) in position 1 , the starter (30°F) ~ 30°C (90°F) and warm- (choke) should be returned to position...

  • Page 54: Starting A Warm Engine

    EBU00180 EBU00538 Starting a warm engine Warming up To start a warm engine, refer to the To get maximum engine life, always warm “Starting a cold engine” section. The up the engine before starting off. Never starter (choke) should not be used. The accelerate hard with a cold engine! To see throttle should be opened slightly.

  • Page 55: Shifting

    EBU00198 Shifting 1. Do not coast for long periods with the This model has a 6-speed forward trans- engine off, and do not tow the mission. The transmission allows you to machine a long distance. Even in neu- control the amount of power you have tral position, the transmission is only available at a given speed or for starting, properly lubricated when the engine is...

  • Page 56: To Start Out And Accelerate

    EBU00203 To start out and accelerate 7. Open the throttle part way and gradual- 1. Release the throttle lever. ly release the clutch lever. 8. Follow the same procedure when shift- ing to the next higher gear. Always close the throttle while shifting q WARNING gears.

  • Page 57: To Decelerate

    EBU00207 q WARNING To decelerate When slowing down or stopping, release POTENTIAL HAZARD the throttle and apply the brakes smoothly Engaging a lower gear when the engine and evenly. As you slow down, shift to a speed is too high. lower gear.

  • Page 58: Engine Break-In

    Engine break-in If any abnormality is noticed during this There is never a more important period in period, consult a Yamaha dealer. the life of your machine than the period 1. 0 ~ 10 hours: between zero and 20 hours.

  • Page 59: Parking

    EBU00212 Parking When parking, stop the engine and shift into low gear. Turn the fuel cock to “OFF” and apply the parking brake.

  • Page 60: Parking On A Slope

    EBU00213 Parking on a slope 1. Bring the machine to a stop by apply- ing the brakes in low gear. q WARNING 2. Stop the engine and release the clutch POTENTIAL HAZARD lever. 3. With the front and rear brakes applied, Parking on a hill or other incline.

  • Page 61: Accessories And Loading

    ATV. Examples include (but are 8 Choose only accessories designed for not limited to) a heavy or bulky object your ATV. Your Yamaha dealer has a attached to the handlebars which could variety of genuine Yamaha accessories. make steering difficult, an accessory that...
  • Page 62 EBU00584 8 Tie down cargo securely to the carriers. Loading As originally equipped, this ATV is not Make sure cargo in the trailer cannot designed to carry cargo or tow a trailer. If move around. A shifting load can cause you choose to add accessories so that you an accident.
  • Page 63 q WARNING POTENTIAL HAZARD Overloading this ATV or carrying or tow- ing cargo improperly. WHAT CAN HAPPEN Could cause changes in vehicle handling which could lead to an accident. HOW TO AVOID THE HAZARD Never exceed the stated load capacity for this ATV.
  • Page 64 EBU00558* Indicates a potential hazard that could result in serious injury or death. 6-13...

  • Page 65: Riding Your Atv

    Riding Your 1 7-1...

  • Page 67: Getting To Know Your Atv

    Indicates a potential hazard that could result in serious injury or death. GETTING TO KNOW YOUR ATV yourself with the operation of the ATV to This ATV is intended for recreational use achieve the skill necessary to enjoy riding by experienced operators only. safely.

  • Page 68: Ride With Care And Good Judgement

    Beginning and inexperienced operators Get training if you are inexperienced. should complete the certified training Beginners should get training from a certi- course offered by Yamaha. They should fied instructor. then regularly practice the skills learned Become familiar with this ATV at slow...
  • Page 69 Not recommended for children under 16 years of age. q 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 severe injury or death of the child.
  • Page 70 This machine is designed to carry operator only - passengers prohibited. q 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 q 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 q WARNING Do not operate after consuming alcohol or drugs. POTENTIAL HAZARD Operator’s performance capability is re- Operating this ATV after consuming duced by the influence of alcohol or drugs. alcohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could cause you to react more slowly.
  • Page 73 q WARNING Pre-operation checks Always perform the pre-operation checks POTENTIAL HAZARD listed on page 5-1 before riding for safety Operating this ATV with improper tires, and proper care of the machine. or with improper or uneven tire pres- q WARNING sure.
  • Page 74 Speed limiter For riders inexperienced with this model, Indicates a potential hazard that could this model is equipped with a speed limiter result in serious injury or death. in the throttle lever housing. The speed limiter limits the power and top speed of the machine.
  • Page 75 Loading and accessories q WARNING Use extra caution when riding the machine POTENTIAL HAZARD with additional loads, such as accessories Overloading this ATV or carrying or tow- or cargo. The machine’s handling may be ing cargo improperly. adversely affected. Reduce your speed when adding additional loads.
  • Page 76 During operation q WARNING Always keep your feet on the footboards POTENTIAL HAZARD during operation. Otherwise your feet may Removing hands from handlebars or contact the rear wheels. feet from footboards during operation. WHAT CAN HAPPEN Removing even one hand or foot can reduce 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 machine or overturn. q WARNING POTENTIAL HAZARD Attempting wheelies, jumps, and other stunts. WHAT CAN HAPPEN Increases the chance of an accident, including an overturn. HOW TO AVOID THE HAZARD Never attempt stunts, such as wheelies or jumps.
  • Page 78 Never modify this ATV through improper installation or use of accessories. All parts and accessories added to this vehicle should be genuine Yamaha or equivalent components designed for use on this ATV and should be installed and used accord- ing to instructions. If you have questions, consult an authorized ATV dealer.
  • Page 79 Exhaust system The exhaust system on the machine is very hot during and following operation. To pre- vent burns, avoid touching the exhaust system. Park the machine in a place where pedestrians or children are not likely to touch it. q WARNING POTENTIAL HAZARD Hot exhaust system.

  • Page 80: Be Careful Where You Ride

    BE CAREFUL WHERE YOU RIDE This machine is designed for off-road use only. Riding on paved surfaces can cause loss of control. q 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 han- dling and control of the ATV, and may cause the vehicle to go out of control.
  • Page 81 Do not ride on any public road, street, or highway. Riding on public roads can result in colli- sions with other vehicles. q 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 other hidden hazards which may cause the machine to upset. q WARNING POTENTIAL HAZARD Failure to use extra care when operating this ATV on unfamiliar terrain.
  • Page 83 q 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 WHAT CAN HAPPEN not easily be seen, such as desert terrain, You could be in a collision. You could be mount a caution flag on the machine. DO injured. NOT use the flag pole bracket as a trailer HOW TO AVOID THE HAZARD hitch.
  • Page 85 Select a large, flat area off-road to become With the engine idling, pull the clutch lever familiar with your ATV. Make sure that this to disengage the clutch and shift into 1st area is free of obstacles and other riders. gear, and then release the parking brake.
  • Page 86 q WARNING and evenly. As you slow down, shift to a lower gear. Be sure that the engine has suf- POTENTIAL HAZARD ficiently slowed before engaging a lower Opening the throttle abruptly or releas- gear. Improper use of the brakes or shifting 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 Always follow proper procedures for off-road, the two rear wheels are mounted turning as described in this Owner’s solidly on one axle and turn together at the Manual.
  • Page 88 forward on the seat. Once you have learned this technique you should be able to per- Lean towards form it at higher speeds or in tighter curves. inside of turn. Support your weight on the outer footboard. Improper riding procedures such as abrupt throttle changes, excessive braking, incor- rect body movements, or too much speed for the sharpness of the turn may cause...

  • Page 89: Climbing Uphill

    CLIMBING UPHILL HOW TO AVOID THE HAZARD Use proper riding techniques to avoid vehi- Never operate the ATV on hills too steep cle overturns on hills. Be sure that you can for the ATV or for your abilities. maneuver your ATV well on flat ground Practice on smaller hills before attempt- before attempting any incline and then ing large hills.
  • Page 90 q WARNING Never go over the top of any hill at high speed. POTENTIAL HAZARD An obstacle, a sharp drop, or another Climbing hills improperly. vehicle or person could be on the other WHAT CAN HAPPEN side of the hill. Could cause loss of control or cause the ATV to overturn.
  • Page 91 If you are climbing a hill and you find that When crossing the side of a hill: you have not properly judged your ability Always follow proper procedures as to make it to the top, you should turn the described in the Owner’s Manual. ATV around while you still have forward Avoid hills with excessively slippery or motion (provided you have the room to do...
  • Page 92 q WARNING If your ATV has stalled or stopped and you believe you can continue up the hill, restart POTENTIAL HAZARD carefully to make sure you do not lift the Stalling, rolling backwards or improper- front wheels which could cause you to lose ly dismounting while climbing a hill.
  • Page 93 When fully stopped, apply rear brake as well, and then lock parking brake. 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 Manual. 7-29...

  • Page 94: Riding Downhill

    q WARNING RIDING DOWNHILL When riding your ATV downhill, shift your POTENTIAL HAZARD weight as far to the rear and uphill side of Going down a hill improperly. the ATV as possible. Move back on the seat and sit with your arms straight. Choose a WHAT CAN HAPPEN low gear which will allow the engine com- Could cause loss of control or cause the...
  • Page 95 7-31...

  • Page 96: Crossing A Slope

    q WARNING CROSSING A SLOPE Traversing a sloping surface on your ATV POTENTIAL HAZARD requires you to properly position your Improperly crossing hills or turning on weight to maintain proper balance. Be sure hills. that you have learned the basic riding skills on flat ground before attempting to cross a WHAT CAN HAPPEN sloping surface.
  • 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 HOW TO AVOID THE HAZARD The ATV can be used to cross slow mov- Never operate this ATV in fast flowing ing, shallow water of up to a maximum of water or in water deeper than that spec- 35 cm (14 inches) in depth.
  • Page 99 Test your brakes after leaving the water. Do not continue to ride your ATV without veri- After riding your ATV in water, be sure to fying that you have regained proper brak- drain the trapped water by removing the ing ability. check hose at the bottom of the air filter case.

  • Page 100: Riding Over Rough Terrain

    q WARNING RIDING OVER ROUGH TERRAIN Riding over rough terrain should be done POTENTIAL HAZARD with caution. Look out for obstacles which Improperly operating over obstacles. could cause damage to the ATV or could lead to an upset or accident. Be sure to WHAT CAN HAPPEN keep your feet firmly mounted on the foot- Could cause loss of control or a colli-...
  • 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 sideways, control can usually be regained or slippery surfaces since the ATV may (if there is room to do so) by steering in the slide.
  • Page 103 q WARNING With practice, over a period of time, skill at controlled sliding can be developed. The POTENTIAL HAZARD terrain should be chosen carefully before Skidding or sliding improperly. attempting such maneuvers, since both stability and control are reduced. Bear in WHAT CAN HAPPEN mind that sliding maneuvers should You may lose control of this ATV.

  • Page 104: What To Do If

    8 If your ATV starts to slide sideways: WHAT TO DO IF ... This section is designed to be a reference Steer in the direction of the slide if you guide only. Be sure to read each section on have the room. riding techniques completely.
  • Page 105 8 If your ATV is traversing a sloping sur- face: Be sure to ride with your weight posi- tioned towards the uphill side of the ATV to maintain 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

    Turn off the engine when performing maintenance unless otherwise specified. Periodic inspection, adjustment and lubri- Have a Yamaha dealer perform service if cation will keep your machine in the safest you are not familiar with machine service. and most efficient condition possible.
  • Page 107 Never modify this ATV through improp- able during a service operation requiring er installation or use of accessories. All one, take your machine to a Yamaha dealer parts and accessories added to this to check the torque settings and adjust vehicle should be genuine Yamaha or them as necessary.

  • Page 108: Periodic Maintenance/Lubrication

    EBU00261 PERIODIC MAINTENANCE/LUBRICATION INITIAL EVERY ITEM ROUTINE month months months months year 9 Replace oil. Transmission 9 Check coolant leakage. 9 Repair if necessary. Cooling system 9 Replace coolant every 24 months. 9 Check condition. 9 Adjust gap and clean. Spark plug 9 Replace if necessary.
  • Page 109 9 Clean and inspect. Frame 9 Inspect. Lighting equipment * It is recommended that these items be serviced by a Yamaha dealer. ** Lithium soap base grease NOTE: Brake fluid replacement: 1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally check the brake fluid level and add the fluid as required.

  • Page 110: Transmission Oil

    EBU00518 Transmission oil NOTE: 1. Transmission oil measurement Wait a few minutes until the oil level settles a. Place the machine on a level place. before checking. b. Warm up the engine for several min- utes, and stop it. d. Remove the dipstick and inspect the c.
  • Page 111 Recommended oil: See page 10-2. Oil quantity: Total amount: 1.7 L (1.5 Imp qt, 1.8 US qt) Periodic oil change: 1.5 L (1.3 Imp qt, 1.6 US qt) 8 Be sure to use motor oils that do not 1. Drain plug contain anti-friction modifiers.

  • Page 112: Cooling System

    Removing the radiator cap when the Restart the engine. If the engine overheats again, engine and radiator are still hot. ask a Yamaha dealer to inspect and repair. WHAT CAN HAPPEN You could be burned by hot fluid and steam blown out under pressure.
  • Page 113 2. Opening the radiator cap To open the radiator cap, remove the radiator cover. When the engine has cooled, place a thick rag like a towel over the radiator cap, slowly rotate the cap counterclockwise to the detent. This procedure allows any residual pressure to escape.
  • Page 114 e. Drain the coolant completely, and thoroughly flush the cooling system with clean tap water. f. Install and tighten the drain bolts. If the gaskets are damaged, replace them. Tightening torque Drain bolt: 1. Reservoir tank cap 14 Nm (1.4 m•kg, 10 ft•lb) c.
  • Page 115 0.28 L (0.25 Imp qt, 0.30 US qt) NOTE: If any leakage is found, ask a Yamaha dealer Hard water or salt water is harmful to the to inspect. engine. Distilled water may be used if soft water isn’t available.

  • Page 116: Spark Plug Inspection

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

  • Page 117: Air Filter Cleaning

    When installing a spark plug, always clean the gasket surface and use a new gasket. Wipe off any grime from the threads and tighten to the specified torque. Tightening torque: Spark plug: 20 Nm (2.0 m•kg, 14 ft•lb) 1. Check hose EBU00288 Air filter cleaning NOTE:...
  • Page 118 q 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 air filter element.
  • Page 119 7. Apply Yamaha foam air filter oil or NOTE: other quality foam air filter oil to the The air filter element should be cleaned element. If foam air filter oil is not every 20 ~ 40 hours. It should be cleaned available, motor oil may be used.

  • Page 120: Spark Arrester Cleaning

    EBU00458 2. Remove the tailpipe by pulling it out of Spark arrester cleaning the muffler. Be sure the exhaust pipe and muffler are 3. Tap the tailpipe lightly, then use a wire cool before cleaning the spark arrester. brush to remove any carbon deposits 1.
  • Page 121 q WARNING POTENTIAL HAZARD Improper cleaning of the spark arrester. Hot exhaust system WHAT CAN HAPPEN Could injure the eyes. Could cause burns. Could cause carbon monoxide poison- ing, possibly leading to death. Could start a fire. HOW TO AVOID THE HAZARD When cleaning the spark arrester: Always let the exhaust system cool prior to touching exhaust components.

  • Page 122: Carburetor Settings

    The carburetors could leak fuel, which Jet needle clip position 3rd groove would be a fire hazard. Pilot air screw 2.0 turns out HOW TO AVOID THE HAZARD Carburetor adjustments should only be performed by a Yamaha dealer. Do not 8-17...
  • Page 123 Jet needle clip position 1st groove 3rd ( Standard ) 1. Main jet number Carburetor setting chart Altitude 0 ~ 1,500 m (5,000 ft) Above 1,500 m (5,000 ft) Temperature Main jet Jet needle Pilot air screw Main jet Jet needle Pilot air screw Above 0°C #200...
  • Page 124 Changing the carburetor settings Disassembly 1. Turn the fuel cock to the "OFF" position. 2. Turn out the drain screw of each carbu- retor and drain the fuel. 3. Remove the seat. 4. Remove the radiator cover and side cover. 7.
  • Page 125 8. Remove the securing plate of each car- buretor. 10. Remove each carburetor cap. 11. Remove the throttle cables from the throttle valves and then remove the 1. Carburetor cap securing plate holder. 9. Loosen the joint screws of each carbu- retor.
  • Page 126 1. Float 2. Needle valve 3. Main jet 14. Change the main jets and the jet needle clip positions. (See page 8-18.) NOTE: Optional main jets can be obtained at a Yamaha dealer. 1. Float chamber 8-21...
  • Page 127 Assembly 1. Reassemble the needle valves, floats and float chambers. 2. Install the carburetors. 3. Reassemble the throttle valves. 4. Install the carburetor caps and tighten them securely to the specified torque. Carburetor cap tightening torque: 1. Securing plate 4 Nm (0.4 m•kg, 2.9 ft•lb) 5.
  • Page 128 Throttle cable adjustment 4. If not, loosen the locknuts and turn the After the jet needle clip positions are adjusters until proper position is changed, throttle cable adjustment may be obtained. necessary. 1. Move the throttle lever a few times. 2.

  • Page 129: Idle Speed Adjustment

    EBU00302 Idle speed adjustment NOTE: A diagnostic tachometer must be used for this procedure. NOTE: The throttle cables and carburetor synchro- nization must be set properly before 1. Pilot air screw adjusting the idle speed. 2. Remove the seat. 3. Start the engine and warm it up for a 1.

  • Page 130: Throttle Lever Adjustment

    EBU00307 Throttle lever adjustment NOTE: Adjust the engine idling speed before adjusting the throttle lever free play. 1. Loosen the locknut. 2. Turn the adjusting bolt until the throttle lever free play is 4 ~ 6 mm (0.16 ~ 0.24 in).

  • Page 131: Front And Rear Brake Pad Inspection

    The indicators allow checking of brake pad wear without disassembling the brake. Apply the brake and inspect the wear indicators. If they are ALMOST in contact with the disc plate, ask a Yamaha dealer to replace the pads. Front 1. Wear indicator (×2) 2.

  • Page 132: Inspecting The Brake Fluid Level

    EBU00315 Inspecting the brake fluid level Front 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 lower level and replenish when necessary. Observe these precautions: 1.

  • Page 133: Brake Fluid Replacement

    Yamaha service brake performance. personnel. 4. Be careful that water does not enter the 2. Have a Yamaha dealer replace the fol- master cylinder when refilling. Water lowing components during periodic will significantly lower the boiling point...

  • Page 134: Front Brake Lever Free Play Adjustment

    All air must be bled from the brake system. Replacement of brake components requires professional knowledge. These 1. Locknut 2. Adjusting bolt procedures should be performed by a a. 4 ~ 8 mm (0.16 ~ 0.31 in) Yamaha dealer. 8-29...

  • Page 135: Rear Brake Adjustment

    The top of the brake pedal should be posi- could lead to an accident. tioned 10 mm (0.39 in) below the top of the footrest. If not, ask a Yamaha dealer to HOW TO AVOID THE HAZARD adjust it. After servicing:...

  • Page 136: Parking Brake Adjustment

    EBU00341 Parking brake adjustment Tightening torque: Parking brake adjustment may be required 16 Nm (1.6 m•kg, 11 ft•lb) if the parking brake does not hold properly. 1. Fully loosen the parking brake cable adjusting bolt and locknut at the left lever holder.
  • Page 137 q WARNING 4. Turn the adjusting bolt on the lever a is 46 ~ holder so that cable length POTENTIAL HAZARD 50 mm (1.81 ~ 1.97 in). Operating with improperly adjusted 5. Tighten the locknut on the lever. brakes. WHAT CAN HAPPEN The brakes could malfunction, causing reduced braking performance.

  • Page 138: Clutch Adjustment

    EBU00539 EBU00350 Clutch adjustment Drive chain slack check The clutch lever free play should be 5 ~ 10 Inspect the drive chain while all tires are mm (0.20 ~ 0.39 in). If the free play is incor- touching the ground. Check the slack at the rect, adjust as follows.

  • Page 139: Drive Chain Slack Adjustment

    EBU00351 Drive chain slack adjustment 1. Loosen the rear wheel hub bolts. 1. Locknut 2. Adjuster 3. Alignment marks 3. After adjusting, be sure to tighten the 1. Upper wheel hub bolt (×2) locknuts and the wheel hub bolts. 2. Lower wheel hub bolt (×2) 2.

  • Page 140: Drive Chain Cleaning And Lubrication

    HOW TO AVOID THE HAZARD Inspect cables frequently. Replace dam- aged cables. Lubricate the inner cables and the cable ends. If the cables do not operate smooth- ly, ask a Yamaha dealer to replace them. 1. O-rings 8-35...

  • Page 141: Brake And Shift Pedal/Brake And Clutch Lever Lubrication

    Brake and shift pedal/brake and clutch lever lubrication Lubricate the pivoting parts of each lever and pedal. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil EBU00368 Upper arm and lower arm pivot lubrication Lubricate the upper arm pivot and the lower arm pivot.

  • Page 142: Rear Arm Pivot Lubrication

    EBU00369 Rear arm pivot lubrication Lubricate the rear arm pivots. Recommended lubricant: Lithium soap base grease 8-37...

  • Page 143: Wheel Removal

    EBU00373 Wheel removal Rear 1. Elevate the wheel by placing a suitable stand under the frame. 2. Remove the nuts from the wheel. 3. Remove the wheel assembly. Front EBU00375 Wheel installation When installing the wheels, reverse the removal procedure. Tighten the wheel nuts to the specified torque.

  • Page 144: Replacing The Headlight Bulb

    EBU00645 Replacing the headlight bulb If the headlight bulb burns out, replace the bulb as follows: 1. Remove the screws holding the head- light unit assembly to the headlight body. q WARNING POTENTIAL HAZARD The headlight bulb is hot when it is on and immediately after it is turned off.

  • Page 145: Headlight Beam Adjustment

    3. Put a new bulb into position and secure Headlight beam adjustment it in place with the bulb holder. It is advisable to have a Yamaha dealer make this adjustment. 1. Vertical adjustment: To raise the beam, turn the adjusting screw clockwise.

  • Page 146: Troubleshooting

    If your machine requires HOW TO AVOID THE HAZARD any repair, take it to a Yamaha dealer. Do not smoke when checking the fuel system. Make sure there are no open The skilled technicians at a Yamaha dealer-...

  • Page 147: Troubleshooting Chart

    2. Compression Kick the kick starter There is compresson Compression normal to see if there is compression No compression Ask a Yamaha dealer to inspect Wipe clean with 3. Ignition dry cloth Remove plugs and Spark good Ignition system normal...

  • Page 148: No Spark

    EBU00414 No spark HOW TO AVOID THE HAZARD Throttle override system (T.O.R.S.) is incor- Have the system checked by a Yamaha porated in the ignition circuit, and if the dealer. system should fail, the spark plug will not Before bypassing T.O.R.S., be sure the spark.
  • Page 149 8-44...

  • Page 150: Cleaning And Storage

    EDU00415 CLEANING AND STORAGE Excessive water pressure may cause water seepage and deterioration of wheel bear- A. CLEANING ings, brakes, transmission seals and elec- Frequent, thorough cleaning of your trical devices. Many expensive repair bills machine will not only enhance its appear- have resulted from improper high pressure ance but will improve its general perfor- detergent applications such as those avail-...
  • Page 151 q WARNING 7. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and POTENTIAL HAZARD glossy. Operation with wet brakes after wash- 8. Automotive type wax may be applied ing. to all painted and chrome plated sur- WHAT CAN HAPPEN faces.

  • Page 152: Storage

    EBU00529 B. STORAGE 5. Block up the frame to raise all wheels Long term storage (60 days or more) of off the ground. your machine will require some preventive 6. Tie a plastic bag over the exhaust pipe procedures to guard against deterioration. outlet to prevent moisture from enter- After thoroughly cleaning the machine, ing.

  • Page 153: Specifications

    EBU00428 SPECIFICATIONS Model YFZ350 Dimension: Overall length 1,855 mm (73.0 in) Overall width 1,100 mm (43.3 in) Overall height 1,080 mm (42.5 in) Seat height 800 mm (31.5 in) Wheel base 1,280 mm (50.4 in) Minimum ground clearance 135 mm (5.31 in) Minimum turning radius: 3,600 mm (141.7 in) Basic weight:...
  • Page 154 Model YFZ350 Engine oil (2-cycle): Type Yamalube R, Castrol R30, A545, A747 Mixing ratio See page 5-6. Transmission oil: Type Yamalube 4 (10W30) or SAE 10W30 Recommended engine oil classification: API Service SE, SF, SG type or higher Be sure to use motor oils that do not contain anti-friction modifiers.
  • Page 155 Model YFZ350 Fuel: Type Premium unleaded fuel, Premix Tank capacity 12.0 L (2.6 Imp gal, 3.2 US gal) Reserve amount 2.5 L (0.5 Imp gal, 0.7 US gal) Carburetor: Type/quantity VM26SS/2 Manufacturer MIKUNI Spark plug: Type/manufacturer B8ES/NGK W24ES/DENSO Spark plug gap 0.7 ~ 0.8 mm (0.028 ~ 0.031 in) Clutch type: Wet, multiple-disc...
  • Page 156 Model YFZ350 Gear ratio 32/13 (2.461) 29/16 (1.812) 27/18 (1.500) 25/20 (1.250) 23/22 (1.045) 21/24 (0.875) Chassis: Frame type Steel tube frame Caster angle 9° Trail 40 mm (1.57 in) Tire: Type Tubeless AT21 × 7 - 10 Size front AT20 ×...
  • Page 157 Model YFZ350 Suspension: Front suspension Double wishbone Rear suspension Swingarm (link suspension) Shock absorber: Front shock absorber Coil spring/Oil damper Rear shock absorber Coil spring/Gas-Oil damper Wheel travel: Front wheel travel 230 mm (9.1 in) Rear wheel travel 220 mm (8.7 in) Electrical: Ignition system C.D.I.

  • Page 158: 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 render- ing inoperative by any person other than for purposes of maintenance, repair, or replace- ment of any device 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 ren- dered inoperative by any person.

  • Page 159: Maintenance Record

    EBU00431 MAINTENANCE RECORD Copies of work orders and/or receipts for parts you purchase and install will be required to document maintenance done in accordance with the warranty. The chart below is printed only as a reminder to you that the maintenance work is required. It is not acceptable proof of maintenance work.

  • Page 160: Atv Limited Warranty

    INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE PERIOD OF WARRANTY for all YFZ model 1. Operate and maintain the ATV as specified in the Yamaha ATV’s shall be ninety (90) days from the appropriate owner’s manual; THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.
  • Page 161 Attention: Warranty Department Each Yamaha ATV dealer is held responsible for his setup, service and war- ranty repair work. This will ensure that Yamaha Motor Corporation, U.S.A. has an up-to-date registration record in accordance with federal law.
  • Page 162 EBU00436 Indicates a potential hazard that could result in serious injury or death.
  • Page 163 EBU00437 PROTECT YOUR INVESTMENT...
  • Page 166 YAMAHA MOTOR CO., LTD. PRINTED IN JAPAN 99·4–1.5×1 PRINTED ON RECYCLED PAPER...

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