Yamaha Bear Tracker YFM250XS Owner's Manual
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READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER'S MANUAL
YFM250XS
WARNING
This ATV should not be ridden by anyone under 16 years of age.
LIT-11626-17-22
4XE-F8199-16

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Summary of Contents for Yamaha Bear Tracker YFM250XS

  • Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM250XS WARNING This ATV should not be ridden by anyone under 16 years of age. LIT-11626-17-22 4XE-F8199-16...
  • Page 2 EBU00776...
  • Page 3 Yamaha experience in the production of fine sporting, touring, and pace-setting racing machines. With the purchase of this Yamaha, you can now appreciate the high degree of crafts- manship and reliability that have made Yamaha a leader in these fields.
  • Page 4: Warning

    EBU00801 I MPORTANT MANUAL INFORMATION FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS INJURY OR DEATH. Particularly important information is distinguished in this manual by the following notations: The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Failure to follow WARNING instructions could result in severe WARNING...
  • Page 5 Please check your local riding laws and regulations before operating this machine. EBU00531 YFM250XS OWNER’S MANUAL ©2003 by Yamaha Motor Corporation, AFFIX DEALER U.S.A. 1st Edition, March 2003 LABEL HERE All rights reserved. Any reprinting or...
  • 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 Front brake lever......4-6 Rear brake pedal and lever .....4-6 Parking brake........4-8 LOCATION OF THE WARNING Shift pedal ........4-9...
  • Page 7 PRE-OPERATION CHECKS ... 5-1 Engine break-in ....... 6-7 Front and rear brakes ..... 5-3 Parking..........6-8 Fuel ..........5-5 Parking on a slope......6-9 Engine oil ........5-7 Accessories and loading ....6-10 Final gear oil........5-7 Throttle lever ........5-7 RIDING YOUR ATV ......
  • Page 8 PERIODIC MAINTENANCE AND Cable inspection and ADJUSTMENT........8-1 lubrication........8-28 Owner’s manual and tool kit.... 8-1 Brake lever and brake pedal Periodic maintenance/ lubrication........8-29 lubrication ........8-3 Steering shaft lubrication ....8-30 Engine oil......... 8-5 Wheel removal.......8-30 Final gear oil ........8-9 Wheel installation......8-31 Spark plug inspection....
  • Page 9 SPECIFICATIONS......10-1 NOISE REGULATION....11-1 MAINTENANCE RECORD .... 12-1 ATV LIMITED WARRANTY.... 13-1 YAMAHA EXTENDED SERVICE (Y.E.S.) ........... 14-1...
  • Page 10: Location Of The Warning And Specification Labels

    EBU00464 L OCATION 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. WARNING Overloading this ATV or carrying cargo improperly can change handling. stability and braking performance and can lead to an accident.
  • Page 12 WARNING Overloading this ATV or carrying cargo improperly can change handling. stability and braking performance and can lead to an accident. Never exceed the maximum rear cargo limit of : 45kg (99 lbs) NEVER sit on the carrier. Refer to instructions in the Owner's Manual.
  • Page 14: 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 15 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. Never consume alcohol or drugs before or while operating this ATV. Never operate at speeds too fast for your skills or the conditions.
  • Page 16 Always follow proper procedures for climbing hills as described in this manual. Check the ter- rain carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces. Shift your weight forward. Never open the throttle suddenly or make sudden gear changes.
  • Page 17 Always be careful when skidding or sliding. Learn to safely control skidding or sliding by prac- ticing at low speeds and on level, smooth terrain. On extremely slippery surfaces, such as ice, go slowly and be very cautious in order to reduce the chance of skidding or sliding out of con- trol.
  • 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 D ESCRIPTION AND MACHINE IDENTIFICATION 1. Spark arrester 12. Recoil starter 2. Rear carrier 13. Tail/brake light 3. Seat 14. Rear wheel 4. Fuel tank cap 15. Shift pedal 5. Front carrier 16. Drive select lever 6. Brake pedal 17.
  • 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 “LIGHTS” 2. Neutral indicator light “N” 2. Engine stop switch “ENG.STOP” 3. Start switch “START” EBU00602 EBU11580 Reverse indicator light “R” Engine stop switch “ENG. STOP” This indicator light comes on when the trans- Make sure that the engine stop switch is in the mission is in reverse.
  • Page 25 EBU00056 EBU11560 Start switch “START” Light switch “LIGHTS” The starter motor cranks the engine when this Set the switch to the “LO” position to turn on switch is pushed. the low beam and the taillight. Set the switch to the “HI” position to turn on CAUTION: the high beam and the taillight.
  • Page 26: Throttle Lever

    If it does not ver is released. 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 27: Speed Limiter

    EBU11590 Speed limiter WARNING The speed limiter keeps the throttle from fully POTENTIAL HAZARD opening, even when the throttle lever is Improper adjustment of the speed limit- pushed to the maximum. Turning in the ad- er and throttle. justing screw limits the maximum engine pow- WHAT CAN HAPPEN er available and decreases the maximum The throttle cable could be damaged.
  • Page 28: Front Brake Lever

    EBU00070 EBU00073 Front brake lever Rear brake pedal and lever The front brake lever is located on the right The brake pedal is located on the right side of handlebar. Pull it toward the handlebar to ap- the machine and the brake lever is located on ply the front brake.
  • Page 29 1. Rear brake lever...
  • Page 30: Parking Brake

    EBU00074 Parking brake WARNING Use the parking brake when you have to start POTENTIAL HAZARD the engine or park the machine, especially on Improper use of the parking brake. a slope. Apply the rear brake lever and push WHAT CAN HAPPEN down the lock plate to apply the parking The ATV could start moving unexpect- brake.
  • Page 31: Shift Pedal

    EBU00083 EBU00085 Shift pedal Drive select lever This machine is equipped with a constant- The drive select lever is used for driving the mesh 5-speed transmission. The shift pedal is machine either forward or in reverse. Refer to located on the left side of the engine. Neutral page 6-4 for drive select lever operation.
  • Page 32: Recoil Starter

    EBU00590 Recoil starter WARNING Firmly grasp the handle and pull slightly until POTENTIAL HAZARD engagement can be felt. Then pull forcefully, Starting the engine in gear and/or start- being careful not to pull the rope all the way ing the engine without setting the park- out.
  • Page 33: Fuel Tank Cap

    EBU00092 Fuel tank cap Remove the fuel tank cap by turning it coun- terclockwise. 1. Fuel tank cap 4-11...
  • Page 34: Fuel Cock

    EBU00093 Fuel cock The fuel cock supplies fuel from the fuel tank to the carburetor. The fuel cock has three positions. OFF: With the lever in this position fuel will not flow. Always turn the lever to this position when the engine is not running. ON: With the lever in this position, fuel flows to the carburetor.
  • Page 35: Starter (Choke)

    EBU00094 Starter (choke) Starting a cold engine requires a richer air-fuel mixture. A separate starter circuit supplies this mixture. Move in direction a to turn on the starter (choke). Move in direction b to turn off the starter (choke). Refer to “Starting a cold engine” for proper op- eration.
  • Page 36: Seat

    EBU00567 Seat To remove the seat, pull the seat lock lever upward and pull up the seat at the rear. 1. Seat lock lever 4-14...
  • Page 37: Storage Box

    EBU00581 To install the seat, insert the projections on Storage box the front of the seat into the seat holders and Maximum load limit: 2.0 kg (4.4 lb) push down on the seat at the rear. NOTE: CAUTION: Make sure that the seat is securely fitted. To protect from damage, do not put metal products, like tools or sharply edged prod- ucts directly in the storage box.
  • Page 38: Front Carrier

    NOTE: 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: To increase the spring preload, turn the ad- justing ring in direction a.
  • Page 39 1. Special wrench Standard position: B A - Minimum (soft) E - Maximum (hard) EBU00112 WARNING Indicates a potential hazard that could result in serious injury or death. 4-17...
  • Page 40: Pre-Operation Checks

    P RE-OPERATION CHECKS Before using this machine, check the following points: ITEM ROUTINE PAGE • Check operation, free play, fluid level and fluid leakage. Front brake 5-3, 8-20–8-23 • Fill with DOT 4 brake fluid if necessary. • Check operation, condition and free play. Rear brake 5-3, 8-20–8-26 •...
  • Page 41 WARNING POTENTIAL HAZARD Failure to inspect the ATV before oper- ating. Failure to properly maintain the ATV. WHAT CAN HAPPEN Increases the possibility of an 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 op- erating condition.
  • Page 42: Front And Rear Brakes

    If the free play is incor- there is any leakage, the brake system should rect, adjust it. (See pages 8-23–8-26.) be inspected by a Yamaha dealer. Check operation of the levers and pedal. They should move smoothly and there should be a Brake operation firm feeling when the brake is applied.
  • 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 ad- justment procedures provided in this manual, have a Yamaha dealer check for the cause.
  • 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

    Recommended engine oil type and Check to see that the throttle lever operates quantity: correctly. It must open smoothly and spring See page 10-2. back to the idle position when released. Have a Yamaha dealer repair as necessary for proper operation.
  • Page 47: Fittings And Fasteners

    EBU11620 Fittings and fasteners Always check the tightness of chassis fittings and fasteners before a ride. Take the machine to a Yamaha dealer or refer to the Service Manual for correct tightening torque. EBU10030 Lights Check the headlights and tail/brake light to make sure they are in working condition.
  • Page 48: Tires

    HOW TO AVOID THE HAZARD specified could cause the tire to 1. The tires listed below have been ap- dislodge from the rim under severe proved by Yamaha Motor Co., Ltd. riding conditions. for this model. Other tire combina- The following are minimums: tions are not recommended.
  • Page 49 4. Use no more than the following pressures when seating the tire beads. Front 250 kPa (2.5 kgf/cm , 36 psi) Rear 250 kPa (2.5 kgf/cm , 36 psi) Higher pressures may cause the tire to burst. Inflate the tires very slowly and carefully.
  • Page 50: How To Measure Tire Pressure

    EBU00159 How to measure tire pressure Use the low-pressure tire gauge. NOTE: The low-pressure tire gauge is included as standard equipment. Make two measure- ments of the tire pressure and use the second reading. Dust or dirt in the gauge could cause the first reading to be incorrect.
  • Page 51: Tire Wear Limit

    EBU00160 Tire wear limit When the tire groove decreases to 3 mm (0.12 in) due to wear, replace the tire. a. Tire wear limit 5-12...
  • Page 52: Operation

    Read the Owner’s Manual carefully. If 3. Turn the main switch to “ON” and the en- there is a control or function you do not gine stop switch to “RUN”. understand, ask your Yamaha dealer. 4. Shift the transmission into neutral.
  • Page 53 If warm engine start position. the light does not come on, ask a Yamaha dealer to inspect it. The engine can be started in any gear if the rear brake lever is applied. However, it is recommended to shift into neutral be- fore starting the engine.
  • Page 54: Starting A Warm Engine

    NOTE: CAUTION: If the engine fails to start, release the See the “Engine break-in” section prior to start switch, then push the start switch operating engine for the first time. again. Pause a few seconds before the next attempt. Each cranking should be as short as possible to preserve battery en- EBU00180 ergy.
  • Page 55: Drive Select Lever Operation And Reverse Driving

    1. Bring the machine to a complete stop should be on. If the light does not come on, and return the throttle lever to the closed ask a Yamaha dealer to inspect the machine. position. 2. Apply the rear brake pedal.
  • Page 56: Shifting

    EBU02000 Shifting WARNING This model has a 5-speed forward transmis- POTENTIAL HAZARD sion with centrifugal automatic clutch. The Improperly operating in reverse. transmission allows you to control the amount WHAT CAN HAPPEN of power you have available at a given speed You could hit an obstacle or person be- or for starting accelerating, climbing, etc.
  • Page 57: To Start Out And Accelerate

    4. Once the machine has attained adequate CAUTION: speed, release the throttle lever. Do not coast for long periods with the en- 5. Shift into second gear and release the gine off, and do not tow the machine a shift pedal. long distance.
  • Page 58: To Decelerate

    EBU00207 EBU00209 To decelerate: Engine break-in When slowing down or stopping, release the There is never a more important period in the throttle and apply the brakes smoothly and life of your machine than the period between evenly. As you slow down, shift to a lower zero and 20 hours.
  • Page 59: Parking

    EBU00211 If any abnormality is noticed during this peri- Parking od, consult a Yamaha dealer. When parking, stop the engine and shift into 1. 0–10 hours: neutral. Turn the fuel cock to “OFF” and apply Avoid continuous operation above half the parking brake.
  • Page 60: Parking On A Slope

    EBU12960 Parking on a slope 1. Bring the ATV to a stop by applying the brakes in low gear. WARNING 2. Stop the engine. POTENTIAL HAZARD 3. With the rear brake lever and pedal ap- Parking on a hill or other incline. plied, apply the parking brake and slowly WHAT CAN HAPPEN release the brake pedal.
  • Page 61: Accessories And Loading

    Choose only accessories designed for your dlebars which could make steering difficult, ATV. Your Yamaha dealer has a variety of an accessory that limits your ability to move genuine Yamaha accessories. Other ac-...
  • Page 62 EBU00588 Loading Do not exceed the maximum tongue Cargo or a trailer can change the stability and weight. You can measure tongue weight handling of an ATV. with a bathroom scale. Put the tongue of You must use common sense and good judg- the loaded trailer on the scale with the ment when carrying cargo or towing a trailer.
  • Page 63 Ride more slowly than you would without a WARNING load. The more weight you carry, the slow- POTENTIAL HAZARD er you should go. Although conditions vary, Overloading this ATV or carrying or tow- it is good practice not to exceed 2nd gear ing cargo improperly.
  • Page 64 EBU13440 WARNING Indicates a potential hazard that could result in serious injury or death. 6-13...
  • Page 65: Riding Your Atv

    R iding Your...
  • Page 67: Getting To Know Your Atv

    WARNING Indicates a potential hazard that could result in serious injury or death. GETTING TO KNOW YOUR ATV begin to ride, be sure you have read this Own- This ATV is mainly for utility use, but may also er’s Manual completely and understand the be used for recreation.
  • Page 68: Ride With Care And Good Judgement

    JUDGEMENT Beginning and inexperienced operators should complete the certified training Get training if you are inexperienced. course offered by Yamaha. They should Beginners should get training from a certified then regularly practice the skills learned instructor. in the course and the operating tech- Become familiar with this ATV at slow speeds niques described in this Owner’s Manu-...
  • Page 69 Not recommended for children under 16 years of age. WARNING POTENTIAL HAZARD Failure to follow the age recommenda- tions for this ATV. WHAT CAN HAPPEN Use by children of ATVs that are not rec- ommended for their age can lead to se- vere injury or death of the child.
  • Page 70 This ATV is designed to carry operator and cargo only - passengers prohibited. WARNING POTENTIAL HAZARD Carrying a passenger on this ATV. WHAT CAN HAPPEN Greatly reduces your ability to balance and control this ATV. Could cause an accident, resulting in harm to you and/ or your passenger.
  • Page 71 Apparel Operating without protective clothing WARNING increases your chances of severe injury in the event of an accident. POTENTIAL HAZARD HOW TO AVOID THE HAZARD Operating this ATV without wearing an Always wear an approved motorcycle approved motorcycle helmet, eye pro- helmet that fits properly.
  • Page 72 Do not operate after consuming alcohol or WARNING drugs. POTENTIAL HAZARD Operator’s performance capability is reduced Operating this ATV after consuming al- by the influence of alcohol or drugs. cohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could cause you to react more slowly.
  • Page 73: Failure To Inspect The Atv Before Oper

    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: How To Avoid The Hazard

    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 top speed, skills or the conditions.
  • Page 75 Loading and accessories WARNING Use extra caution when riding the ATV with POTENTIAL HAZARD additional loads, such as accessories or car- Overloading this ATV or carrying or tow- go. The ATV’s handling may be adversely af- ing cargo improperly. fected. Reduce your speed when adding WHAT CAN HAPPEN additional loads.
  • Page 76 During operation WARNING Always keep your feet on the footboards dur- POTENTIAL HAZARD ing operation. Otherwise your feet may con- Removing hands from handlebars or tact the rear wheels. feet from footboards during operation. WHAT CAN HAPPEN Removing even one hand or foot can re- duce your ability to control the ATV or could cause you to lose your balance and fall off of the ATV.
  • Page 77 Avoid wheelies and jumping. You may lose control of the ATV or overturn. WARNING POTENTIAL HAZARD Attempting wheelies, jumps, and other stunts. WHAT CAN HAPPEN Increases the chance of an accident, in- cluding an overturn. HOW TO AVOID THE HAZARD Never attempt stunts, such as wheelies or jumps.
  • Page 78 Never modify this ATV through improp- er installation or use of accessories. All parts and accessories added to this ve- hicle should be genuine Yamaha or equivalent components designed for use on this ATV and should be installed and used according to instructions. If you have questions, consult an autho- rized ATV dealer.
  • Page 79 Exhaust system The exhaust system on the ATV is very hot during and following operation. To prevent burns, avoid touching the exhaust system. Park the ATV in a place where pedestrians or children are not likely to touch it. WARNING POTENTIAL HAZARD Hot exhaust system.
  • Page 80: Be Careful Where You Ride

    BE CAREFUL WHERE YOU RIDE This ATV is designed for off-road use only. Riding on paved surfaces can cause loss of control. WARNING POTENTIAL HAZARD Operating this ATV on paved surfaces. WHAT CAN HAPPEN ATVs are designed for off-road use only. Paved surfaces may seriously affect handling and control of the ATV, and may cause the vehicle to go out of con-...
  • Page 81 Do not ride on any public road, street, or high- way. Riding on public roads can result in collisions with other vehicles. WARNING POTENTIAL HAZARD Operating this ATV on public streets, roads or highways. WHAT CAN HAPPEN You can collide with another vehicle. HOW TO AVOID THE HAZARD Never operate this ATV on any public street, road or highway, even a dirt or...
  • Page 82 Know the terrain where you ride. Ride cau- tiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and oth- er hidden hazards which may cause the ATV to upset. WARNING POTENTIAL HAZARD Failure to use extra care when operating this ATV on unfamiliar terrain.
  • Page 83 WARNING POTENTIAL HAZARD Failure to use extra care when operating on excessively rough, slippery or loose terrain. WHAT CAN HAPPEN Could cause loss of traction or vehicle control, which could result in an acci- dent, including an overturn. HOW TO AVOID THE HAZARD Do not operate on excessively rough, slippery or loose terrain until you have learned and practiced the skills neces-...
  • Page 84 When riding in an area where you might not WHAT CAN HAPPEN easily be seen, such as desert terrain, mount You could be in a collision. You could a caution flag on the ATV. DO NOT use the be injured. flag pole bracket as a trailer hitch.
  • Page 85 Select a large, flat area off-road to become fa- With the engine idling, lift the shift pedal to the miliar with your ATV. Make sure that this area 1st gear position and then release the parking is free of obstacles and other riders. You brake.
  • Page 86 CAUTION: WARNING Do not shift gears without releasing the POTENTIAL HAZARD throttle. Damage to the engine or drive Engaging a lower gear when the engine train may occur. speed is too high. WHAT CAN HAPPEN When slowing down or stopping, release the The wheels could stop rotating.
  • Page 87: Turning Your Atv

    TURNING YOUR ATV HOW TO AVOID THE HAZARD To achieve maximum traction while riding off- Always follow proper procedures for road, the two rear wheels are mounted solidly turning as described in this Owner’s on one axle and turn together at the same Manual.
  • Page 88 Once you have learned this technique you should be able to perform it at higher speeds or in tighter curves. Improper riding procedures such as abrupt throttle changes, excessive braking, incorrect body movements, or too much speed for the sharpness of the turn may cause the ATV to tip.
  • Page 89: Climbing Uphill

    CLIMBING UPHILL HOW TO AVOID THE HAZARD Use proper riding techniques to avoid vehicle Never operate the ATV on hills too steep overturns on hills. Be sure that you can ma- for the ATV or for your abilities. neuver your ATV well on flat ground before at- Practice on smaller hills before attempt- tempting any incline and then practice riding ing large hills.
  • Page 90 WARNING An obstacle, a sharp drop, or another vehicle or person could be on the other POTENTIAL HAZARD side of the hill. Climbing hills improperly. WHAT CAN HAPPEN Could cause loss of control or cause the ATV to overturn. HOW TO AVOID THE HAZARD Always follow proper procedures for climbing hills as described in this Own- er’s Manual.
  • Page 91: Scribed In The Owner's Manual

    If you are climbing a hill and you find that you When crossing the side of a hill: have not properly judged your ability to make Always follow proper procedures as de- it to the top, you should turn the ATV around scribed in the Owner’s Manual.
  • Page 92 If your ATV has stalled or stopped and you WARNING believe you can continue up the hill, restart POTENTIAL HAZARD carefully to make sure you do not lift the front Stalling, rolling backwards or improper- wheels which could cause you to lose control. ly dismounting while climbing a hill.
  • Page 93 Dismount on uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following the pro- cedure described in the Owner’s Manu- 7-29...
  • Page 94: Riding Downhill

    RIDING DOWNHILL WARNING When riding your ATV downhill, shift your POTENTIAL HAZARD weight as far to the rear and uphill side of the Going down a hill improperly. ATV as possible. Move back on the seat and WHAT CAN HAPPEN sit with your arms straight.
  • Page 95 7-31...
  • Page 96: Crossing A Slope

    CROSSING A SLOPE If your ATV does begin to tip over, gradually Traversing a sloping surface on your ATV re- steer in the downhill direction if there are no quires you to properly position your weight to obstacles in your path. As you regain proper maintain proper balance.
  • Page 97 When crossing the side of a hill: Always follow proper procedures as de- scribed in the Owner’s Manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the ATV. 7-33...
  • Page 98: Crossing Through Shallow Water

    CROSSING THROUGH SHALLOW WATER Remember that wet brakes may have re- The ATV can be used to cross slow moving, duced stopping ability. Test your brakes shallow water of up to a maximum of 35 cm after leaving water. If necessary, apply (14 in) 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: 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 102 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 103: 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 104 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 105: Periodic Maintenance And Adjustment

    EBU00515 P ERIODIC MAINTENANCE AND Have a Yamaha dealer perform service if ADJUSTMENT you are not familiar with machine service. Periodic inspection, adjustment and lubrica- tion will keep your machine in the safest and most efficient condition possible. Safety is an EBU00535 obligation of the machine owner.
  • Page 106 If you do not have a torque wrench available you have questions, consult an autho- during a service operation requiring one, take rized Yamaha ATV dealer. your machine to a Yamaha dealer to check the torque settings and adjust them as neces- sary.
  • Page 107: 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 108 • Correct if necessary. • Check operation. Lights and switches* • Adjust headlight beams. It is recommended that these items be serviced by a Yamaha dealer. NOTE: • Recommended brake fluid: DOT 4 • Brake fluid replacement: 1. When disassembling the master cylinder or cali- per, replace the brake fluid.
  • Page 109: Engine Oil

    EBU11002 Engine oil CAUTION: Engine oil level measurement Make sure no foreign material enters the 1. Place the machine on a level surface. crankcase. 2. Warm up the engine for several minutes and stop it. Wait at least ten minutes for the oil to drain back into the crankcase before checking the oil level.
  • Page 110 Engine oil replacement and oil filter ele- ment cleaning 1. Place the machine on a level surface. 2. Warm up the engine for several minutes and stop it. 3. Place a container under the engine to collect the used oil. 4.
  • Page 111 5. Remove the oil filter cover and oil filter el- 6. Clean the oil strainer and oil filter element ement. with solvent. 7. Inspect the O-ring and replace it if dam- aged. 8. Install the oil filter element, O-ring and oil filter cover.
  • Page 112 11. Fill the engine with oil and install the en- CAUTION: gine oil filler cap. If oil leakage is found, stop the engine im- mediately and check for the cause. Recommended engine oil: See page 10-2. Oil quantity: Without oil filter element removal: 1.5 L (1.3 Imp qt, 1.6 US qt) With oil filter element removal: 1.6 L (1.4 Imp qt, 1.7 US qt)
  • Page 113: Final Gear Oil

    EBU11450 Final gear oil Final gear oil measurement 1. Place the machine on a level surface. 2. Remove the oil filler bolt, and then check the oil level in the final gear case. NOTE: The oil level should be at the brim of the filler hole.
  • Page 114 Final gear oil replacement 2. Place the machine on a level surface. 1. Remove the final gear case cover by re- 3. Place a container under the final gear moving the bolts. case to collect the used oil. 4. Remove the oil filler bolt and the drain bolt to drain the oil.
  • Page 115: Spark Plug Inspection

    Do not attempt to diagnose such problems Be sure no foreign material enters the final yourself. gear case. Instead, take the ATV to a Yamaha dealer. You should periodically remove and inspect 7. Install the oil filler bolt. the spark plug because heat and deposits will 8.
  • Page 116 Before installing the spark plug, measure the When installing the spark plug, always clean electrode gap with a wire thickness gauge the gasket surface and its mating surface. and adjust it to specification. Wipe off any grime from the threads and tight- en it to the specified torque.
  • Page 117: Air Filter Element Cleaning

    EBU13010 Air filter element cleaning 1. Remove the seat. (See page 4-14 for seat removal and installation proce- NOTE: dures.) There is a check hose at the bottom of the air 2. Remove the air filter case cover by un- filter case.
  • Page 118 3. Pull the air filter element out. 4. Remove the foam cover from the air filter element. 1. Air filter element 2. Foam cover 1. Air filter element 8-14...
  • Page 119 5. Tap the element lightly to remove most of WARNING the dust and dirt. Blow out the remaining POTENTIAL HAZARD dirt with compressed air as shown. If the Using low flash point solvents or gaso- air filter element is damaged, replace it. line to clean the foam cover.
  • Page 120 10. Install the air filter element. CAUTION: 11. Install the air filter case cover by fasten- Never operate the engine with the air filter ing the holders. element removed. This will allow unfiltered 12. Install the seat. air to enter, causing rapid engine wear and NOTE: possible engine damage.
  • Page 121: Spark Arrester Cleaning

    EBU13620 Spark arrester cleaning 3. Stop the engine and allow the exhaust Select a well-ventilated area free of combusti- pipe to cool. ble materials and make sure the exhaust pipe 4. Install the purging bolt and tighten it. and muffler are cool. 1.
  • Page 122: Carburetor Adjustment

    The carburetor is a vital part of the engine and Improperly purging the exhaust system. requires very sophisticated adjustment. Most Hot exhaust system. adjusting should be left to a Yamaha dealer WHAT CAN HAPPEN who has the professional knowledge and ex- Could injure the eyes.
  • Page 123: 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. 1,400–1,500 r/min 8-19...
  • Page 124: Throttle Lever Adjustment

    NOTE: If a brake pad thickness is less than 1 mm Adjust the engine idling speed before adjust- (0.04 in), have a Yamaha dealer replace the ing the throttle lever free play. pads as a set. 1. Loosen the locknut.
  • Page 125: Rear Brake Shoe Inspection

    Before riding, check that the brake fluid is dicator. If the indicator reaches the wear limit above the minimum level mark and replenish line, ask a Yamaha dealer to replace shoes as if necessary. A low brake fluid level may indi- a set.
  • Page 126: Brake Fluid Replacement

    Have a Yamaha dealer check the cause if the brake fluid level goes down. EBU11860 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.
  • Page 127: 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 128: Rear Brake Adjustment

    EBU01075 Rear brake adjustment 2. Turn the adjusting nut on the brake rod Brake pedal until free play is 20–30 mm (0.8–1.2 in). 1. Fully loosen the adjusting nut on the brake cable. a. Rear brake pedal free play 1. Adjusting nut (brake cable) 2.
  • Page 129 Brake lever 2. Turn the adjusting nut on the brake cable 1. Loosen the locknut and fully turn in the to provide a gap of 0–1 mm (0–0.04 in) adjusting bolt on the handlebar. between the cam shaft lever and pin. 1.
  • Page 130 Make sure the brakes do not drag. 1. Locknut 2. Adjusting bolt a. Rear brake lever free play Replacement of brake components re- 4. Tighten the locknut. quires professional knowledge. These procedures should be performed by a Yamaha dealer. 8-26...
  • Page 131: Adjusting The Rear Brake Light Switch

    EBU00834 EBU00346 Adjusting the rear brake light switch Clutch adjustment The rear brake light switch, which is activated 1. Loosen the locknut. by the brake pedal and brake levers, is prop- 2. Slowly turn the adjusting bolt counter- erly adjusted when the brake light comes on clockwise until resistance is felt.
  • Page 132: Cable Inspection And Lubrication

    If the cables do not operate smoothly, ask a decrease the clutch free play and turn it clock- Yamaha dealer to replace them. wise to increase the free play. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil EBU00356 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables.
  • Page 133: Brake Lever And Brake Pedal Lubrication

    EBU00717 Brake lever and brake pedal lubrication Lubricate the pivoting parts. Recommended lubricant: Lithium-soap-based grease (all-purpose grease) 8-29...
  • Page 134: Steering Shaft Lubrication

    EBU14060 EBU01112 Steering shaft lubrication Wheel removal Lubricate the pivot point with a grease gun. 1. Loosen the wheel nuts. 2. Elevate the ATV and place a suitable Recommended lubricant: stand under the frame. Lithium-soap-based grease 3. Remove the nuts from the wheel. (all purpose grease) 4.
  • Page 135: Wheel Installation

    EBU01121 Wheel installation 1. Install the wheel and the nuts. NOTE: Tapered nuts are used for both the front and rear wheels. Install the nut with its ta- pered side towards the wheel. The arrow mark on the tire must point toward the rotating direction of the wheel.
  • Page 136: Battery

    EBU00378 Battery Check the level of the battery fluid and see if the terminals are tight. Add distilled water if the fluid level is low. CAUTION: Do not leave or store the battery on its side. When inspecting the battery, be sure the breather hose is routed correctly.
  • Page 137 WARNING EYES: Flush with water for 15 minutes and get prompt medical attention. Keep POTENTIAL HAZARD batteries away from sparks, flames, cig- Failure to handle batteries or battery arettes or other sources of ignition. Ven- electrolyte carefully. tilate when charging or using in a closed WHAT CAN HAPPEN space.
  • Page 138: Replenishing The Battery Fluid

    EBU00542 Replenishing the battery fluid CAUTION: A poorly maintained battery will corrode and Normal tap water contains minerals which discharge quickly. The battery fluid should be are harmful to a battery. Therefore, refill checked at least once a month. only with distilled water. 1.
  • Page 139: 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: 20 A HOW TO AVOID THE HAZARD Always use a fuse of the specified rat- ing.
  • Page 140: Replacing A Headlight Bulb

    EBU10721 Replacing a headlight bulb If a headlight bulb burns out, replace the bulb as follows. 1. Remove the headlight cover by removing the screws. 1. Bulb holder cover (× 2) 3. Turn the bulb holder counterclockwise to remove the defective bulb. 1.
  • Page 141: Headlight Beam Adjustment

    WARNING CAUTION: POTENTIAL HAZARD The headlight bulb is hot when it is on It is advisable to have a Yamaha dealer and immediately after it is turned off. make this adjustment. WHAT CAN HAPPEN To raise the beam, turn the adjusting screw in You can be burned, or a fire could start direction a.
  • Page 142: Tail/Brake Light Bulb Replacement

    EBU09451 Tail/brake light bulb replacement 3. Remove the bulb holder (together with 1. Open the storage box. (See page 4-15.) the bulb) by turning it counterclockwise. 2. Remove the nuts together with the wash- ers. 1. Bulb holder 4. Remove the defective bulb from the bulb holder by pushing it inward and turning it 1.
  • Page 143: Troubleshooting

    EBU00412 Troubleshooting Although Yamaha machines receive a rigid in- spection before shipment from the factory, trouble may occur during operation. Any prob- lem in the fuel, compression, or ignition sys- tems can cause poor starting and loss of power. The troubleshooting chart describes a quick, easy procedure for making checks.
  • Page 144 WARNING POTENTIAL HAZARD Checking the fuel system while smok- ing or near an open flame. WHAT CAN HAPPEN Fuel can ignite or explode, causing se- vere injury or property damage. HOW TO AVOID THE HAZARD Do not smoke when checking the fuel system.
  • Page 145: Troubleshooting Chart

    Supply fuel. No fuel. 2. Compression There is compression. Compression normal. Use electric starter to see if there is compression. Ask a Yamaha dealer to No compression. inspect. 3. Ignition Wipe clean with dry cloth. Ignition system Spark good. normal.
  • Page 146: Cleaning And Storage

    EBU00419 CLEANING AND STORAGE CAUTION: Excessive water pressure may cause wa- A. CLEANING ter seepage and deterioration of wheel Frequent, thorough cleaning of your machine bearings, brakes, transmission seals and will not only enhance its appearance but will electrical devices. Many expensive repair improve its general performance and extend bills have resulted from improper high the useful life of many components.
  • Page 147 6. Clean the seat with a vinyl upholstery WARNING cleaner to keep the cover pliable and POTENTIAL HAZARD glossy. Operation with wet brakes after wash- 7. Automotive type wax may be applied to ing. all painted and chrome plated surfaces. WHAT CAN HAPPEN Avoid combination cleaner-waxes.
  • Page 148: Storage

    Do not apply oil to any rubber parts or the seat cover. NOTE: Use of fuel stabilizer and conditioner elimi- nates the need to drain the fuel system. Con- sult a Yamaha dealer if the fuel system needs to be drained instead.
  • Page 149 7. Remove the battery and charge it. Store it in a dry place and recharge it once a month. Do not store the battery in an ex- cessively warm or cold place (less than 0°C (30°F) or more than 30°C (90°F)). NOTE: Make any necessary repairs before storing the machine.
  • Page 150: Specifications

    EBU00428 S PECIFICATIONS MODEL YFM250X Dimension: Overall length 1,940 mm ( 76.4 in) Overall width 1,005 mm ( 39.6 in) Overall height 1,118 mm ( 44.0 in) Seat height 780 mm ( 30.7 in) Wheel base 1,170 mm ( 46.1 in) Minimum ground clearance 150 mm ( 5.91 in) Minimum turning radius...
  • Page 151 MODEL YFM250X Engine oil: 0˚ 10˚ 30˚ 70˚ 90˚ 110˚ 130˚F 50˚ Type YAMALUBE 4 (20W40) or SAE 20W40 YAMALUBE 4 (10W30) or SAE 10W30 SAE 5W30 -20˚ -10˚ 0˚ 20˚ 30˚ 40˚ 50˚C 10˚ 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 152 MODEL YFM250X Final gear case oil: Type SAE 80 API “GL-4” Hypoid gear oil Quantity: Periodic oil change 0.25 L (0.22 Imp qt, 0.26 US qt) Air filter: Dry element Fuel: Type UNLEADED GASOLINE ONLY Tank capacity 12 L (2.64 Imp gal, 3.17 US gal) Reserve amount 1.6 L (0.35 Imp gal, 0.42 US gal) Carburetor:...
  • Page 153 MODEL YFM250X Gear ratio: 34/12 (2.833) 34/19 (1.789) 29/22 (1.318) 26/25 (1.040) 23/28 (0.821) × × Reverse 73/22 34/12 19/18 (9.924) Chassis: Frame type Steel tube ° Caster angle Trail 20 mm (0.79 in) Tire: Type Tubeless AT22 × 7-10 Size: Front AT22 ×...
  • Page 154 MODEL YFM250X Wheel travel: Front 125 mm (4.9 in) Rear 135 mm (5.3 in) Electrical: Ignition system DC. C.D.I. Generator system A.C. magneto Battery type/voltage, capacity YB14A-A2/12V, 14Ah Headlight type: Incandescence Bulb voltage, wattage × quantity: 12V, 25/25W × 2 Headlight 12V, 5/21W ×...
  • Page 155: Noise Regulation

    EBU00430 NOISE REGULATION TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inop- erative by any person other than for purposes of maintenance, repair, or replacement of any de- vice or element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use or (2) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.
  • Page 156: 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 157: Atv Limited Warranty

    EBU00432 Y AMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY 13-1...
  • Page 158 13-2...
  • Page 159: Yamaha Extended Service (Y.e.s.)

    EBU00435 Y AMAHA EXTENDED SERVICE (Y.E.S.) 14-1...
  • Page 160 14-2...
  • Page 161 EBU00436 WARNING Indicates a potential hazard that could result in serious injury or death.
  • Page 162 EBU00437...
  • Page 163 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 USA 2003.04-4.0×1 CR...

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