Yamaha bruin 250 repair manual




















There are detailed factory-made manuals designed for professional technicians and others that lack and in-depth coverage of vehicle problems designed for novice mechanics.

Yamaha Bruin ATV repair manuals contain comprehensive repair instructions and detailed information on the following systems:. These repair manuals cover vehicle models from as early as the s. They are written and prepared by teams of passionate and knowledgeable DIY enthusiasts with the aim of making it easy for any first-time mechanic to conduct ATV repairs.

They are all-inclusive, with shortcuts and tricks that make tricky repair tasks easier. Go here if you're looking for a Yamaha Grizzly repair manual. The ability of all-terrain vehicles to handle a wide range of terrains makes it necessary to carry out regular maintenance, repairs and troubleshooting on the vehicle. There are downloadable PDFs available on the internet. Ensure that your copy has highly detailed instructions, diagrams, and illustrations and is from a trusted supplier.

Yes, manuals are available for the and models. Also manuals for:. News Ticker. Yamaha Bruin ATV repair manuals contain comprehensive repair instructions and detailed information on the following systems: Vehicle specifications Tune up, maintenance and lubrication Engine lower and top ends Internal and external shift mechanisms Exhaust and fuel systems Electrical system Wiring diagrams Final drive and rear axle suspension Body, clutch and brakes Steering and front suspension These repair manuals cover vehicle models from as early as the s.

This is not only on auto repair services, but also on spare parts. Table of Contents. It contains important safety information. This ATV should not be ridden by anyone under 16 years of age.

Previous Page. Next Page. Troubleshooting Troubleshooting Troubleshooting chart LIT 1P0-F Page 2 EBU 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 5 Please check your local riding laws and regulations before operating this ATV.

Any reprinting or Handlebar switches 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.

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, a 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. Spark arrester Storage compartment Rear shock absorber spring 3.

Air filter case preload adjusting ring 4. Engine oil dipstick Engine oil drain bolt 5. Front brake fluid reservoir Page Identification Number Records This number can be used for ordering a new when ordering spare parts from a Yamaha key.

Page 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. EBU 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 Throttle Lever If it does not ver is released. Correct the problem before riding the ATV. Throttle lever Turning in the ad- er and throttle. Pull it toward the handlebar to ap- the ATV and the rear brake lever is located on ply the front brake. Page 29 1. Rear brake lever The shift pedal is machine either forward or in reverse. Refer to located on the left side of the engine. Neutral page for drive select lever operation. Fuel tank cap 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. A separate starter circuit supplies this mixture. Move in direction a to turn on the starter choke. Move in direction b to turn off the starter choke.

Page Seat EBU Seat To install the seat, insert the projections on To remove the seat, pull the seat lock lever the front of the seat into the seat holders and upward and pull up the seat at the rear. NOTE: Make sure that the seat is securely fitted. See page for seat removal and installation procedures. When storing any documents in the storage compartment, be sure to wrap them in a plas- tic bag so that they will not get wet. When washing the ATV, be careful not to let any wa- ter enter the storage compartment.

Adjust the spring preload as follows: To increase the spring preload, turn the ad- justing ring in direction a. Page 39 1. Failure to properly maintain the ATV. Page Front And Rear Brakes Brake operation should be a firm feeling when the brake is Test the brakes at slow speed after starting applied.

If not, have a Yamaha dealer in- out to make sure they are working properly. If spect them. 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 Fuel EBU Fuel Your Yamaha engine has been designed to Make sure there is sufficient gasoline in the use regular unleaded gasoline with a pump tank.

Page 45 Fuel can spill, which can cause a fire hol containing methanol is not recommended and severe injury.

If the damage or vehicle performance problems. Page 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 Have a Yamaha dealer repair as necessary for proper operation.

Take the machine to a Yamaha dealer or refer to the Service Manual for correct tightening torque. The tires listed below have been ap- dislodge from the rim under severe proved by Yamaha Motor Co.

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 kPa 2. Inflate the tires very slowly and carefully. 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.

Tire wear limit Shift the transmission into neutral. 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. Pause a few seconds before the next attempt. Each cranking should be as short as possible to preserve battery en- EBU ergy. Bring the ATV to a complete stop and re- should be on.

If the light does not come on, turn the throttle lever to the closed posi- ask a Yamaha dealer to inspect the ATV. Apply the brake pedal. The Improperly operating in reverse. 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. Page To Decelerate EBU EBU 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. When parking, stop the engine and shift into neutral. Avoid continuous operation above half throt- tle. Bring the ATV to a stop by applying the brakes in low gear.

Stop the engine. With the rear brake lever and pedal ap- Parking on a hill or other incline. Your Yamaha dealer has a variety of an accessory that limits your ability to move genuine Yamaha accessories. Other ac You can measure tongue weight handling of an ATV. 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.

Although conditions vary, Overloading this ATV or carrying or tow- it is good practice not to exceed 2nd gear ing cargo improperly. This the operation of the controls.

Pay particular at- section, Riding your ATV, provides general tention to the safety information on pages ATV riding instructions for recreational riding.

They should Beginners should get training from a certified then regularly practice the skills learned instructor. Page 68 Not recommended for children under 16 years of age.

Page 69 This ATV is designed to carry operator and cargo only - passengers prohibited. Could cause you to react more slowly. Page 73 Speed limiter WARNING For riders less experienced with this model, Indicates a potential hazard that could this model is equipped with a speed limiter in result in serious injury or death. The speed limiter keeps the throttle from fully opening, even Do not operate at speeds too fast for your when the throttle lever is pushed to the maxi- skills or the conditions.

Otherwise your feet may con- Removing hands from handlebars or tact the rear wheels. Page 76 Avoid wheelies and jumping. You may lose control of the ATV or overturn. Page 77 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. To prevent burns, avoid touching the exhaust system. Park the ATV in a place where pedestrians or children are not likely to touch it.

Riding on paved surfaces can cause loss of control. Paved surfaces may seriously affect handling and control of the ATV, and may cause the vehicle to go out of con Page 80 Do not ride on any public road, street, or high- way. Riding on public roads can result in collisions with other vehicles. Page 81 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. You could a caution flag on the ATV. DO NOT use the be injured. Page 84 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. Damage to the engine or drive Engaging a lower gear when the engine train may occur. Page 87 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.

Be sure that you can ma- for the ATV or for your abilities. Climbing hills improperly. Page 92 Dismount on uphill side or to a side if pointed straight uphill. ATV as possible. Page 94 As you regain proper maintain proper balance.

Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the ATV. Test your brakes shallow water of up to a maximum of 35 cm after leaving water. If necessary, apply 14 in in depth. Page 98 Test your brakes after leaving the water. Look out for obstacles which could cause damage to the ATV or could lead to an upset or accident. Be sure to keep your feet firmly mounted on the footboards at all times.

If Improperly operating over obstacles. Could cause loss of control or a colli- To reduce the tendency for the front wheels to sion. Page If the rear wheels of your ATV start to slide With practice, over a period of time, skill at sideways, control can usually be regained if controlled sliding can be developed.

The ter- there is room to do so by steering in the direc- rain should be chosen carefully before at- tion of the slide. Be sure to read each section on Skidding or sliding improperly.

Page If your ATV starts to slide sideways: If your ATV is traversing a sloping surface: Steer in the direction of the slide if you have Be sure to ride with your weight positioned the room. Periodic inspection, adjustment and lubrica- tion will keep your machine in the safest and most efficient condition possible.



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