by Clymer Staff
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Quote order code CM489-2
Yamaha Timberwolf YFM250, YFB250, YFB250FW 1989 - 2000 Clymer Owners Service & Repair Manual Covers the following Models:
● Yamaha Timberwolf YFM250, 1989-1991
● Yamaha Timberwolf YFB250, 1992-1998
● Yamaha Timberwolf YFB250FW, 1994-2000
● QUICK REFERENCE DATA
● GENERAL INFORMATION
Manual organization / Notes, warnings and cautions / Safety first / Service hints / Washing the vehicle / Torque specifications / Lubricants / Sealant, cements and cleaners / Threadlocking compound / Expendable supplies / Serial numbers / Warning labels / Basic hand tools / Precision measuring tools / Special tools / Fabricating tools / Mechanic's tips / Ball bearing replacement / Seals / Riding safely / Storage / Specifications
Operating requirements / Troubleshooting instruments / Starting the engine / Starting difficulties / Poor idle speed / Poor medium and high speed performance / Starting system / Charging system / Ignition system / Lighting system / Cooling system testing / Fuel system / Engine overheating / Engine / Engine overheating / Engine noises / Engine leak down test / Clutch / Transmission / Drive train Noise / Handling / Frame noise / Brakes
● LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-ride check list / Maintenance service schedule intervals / Periodic lubrication / Engine oil and filter change / Oil flow inspection / Front differential gearcase oil change / Rear differential drive gearcase oil change / Control cable lubrication / Unscheduled lubrication / Periodic maintenance / Unscheduled maintenance / Tune-up / Valve clearance / Cylinder compression / Spark plug / Air filter / Ignition timing / Pilot air screw adjustment / Idle speed adjustment / Specifications
● ENGINE TOP END
Engine principles / Cylinder head / Camshaft and rocker arms / Camshaft chain / Chain guides / Valves and valve components / Cylinder block / Piston and piston rings / Specifications
● ENGINE LOWER END
Servicing engine in frame / Subtransmission and reverse gear assembly / Middle driven and reverse gear assembly / Transfer gear assembly / Middle drive gear / Transmission drive select lever / Oil pump / Balancer driven gear / Magneto stator and stator housing / Magneto rotor and starter clutch / Right-hand crankcase spacer / Crankcase and crankshaft / Recoil starter / Break-in procedure / Specifications
● CLUTCH AND EXTERNAL SHIFT MECHANISM
Clutch cover / Clutch release lever mechanism / Clutch assemblies / One-way clutch inspection / External shift mechanism / Specifications
● TRANSMISSION AND INTERNAL SHIFT MECHANISM
Transmission troubleshooting / Transmission overhaul / Internal shift mechanism / Specifications
● FUEL AND EXHAUST SYSTEMS
Carburetor adjustments / Throttle cable replacement / Choke cable replacement / Throttle lever housing / Fuel tank / Fuel shutoff valve / Air filter air box / Exhaust system / Specifications
● ELECTRICAL SYSTEM
Basic information / Charging system / Voltage regulator/rectifier / Capacitor discharge ignition / Ignition coil / CDI magneto (stator source and pickup coils) / Starting system / Starter relay / Lighting system / Indicator light system / Instrument panel / Handlebar cover and indicator lights / Switch / Relays / Fuses / Specifications
● FRONT SUSPENSION AND STEERING
Front wheel / Front hub brake drum / Front suspension / Shock absorber / Steering knuckle / Control arm / Control arm bushing / Ball joint / Handlebar / Tie rods / Steering shaft / Tyres and wheels / Specifications
● FRONT DRIVE MECHANISM FOUR-WHEEL DRIVE
Front drive axle / Front differential gearcase / Front drive shaft / Specifications
● REAR SUSPENSION AND FINAL DRIVE
Rear wheels / Rear hub / Rear hub brake drum / Rear axle / Final drive unit and short drive shaft / Tyre changing and tyre repairs / Shock absorber / Swing arm / Specifications
Front brake drum / Rear brake disc / Rear drum brake hub / Rear brake pedal / Specifications
Seat / Front guard / Front bumper / Front carrier/rack / Rear carrier/rack / Rear bumper / Rear handle / Fuel tank cover assembly / Front fender / Front fender / Rear fender / Footrests / Specifications
● WIRING DIAGRAMS
Clymer motorcycle & ATV repair manuals can save you money on maintenance and repair bills. Step-by-step procedures and detailed illustrations guide you through every job, from maintenance and troubleshooting, all the way to complete teardown and rebuild.
Please note that workshop manuals are usually written for models sold in a specific country. Differences in specification can exist between models sold in different countries and items such as engines can vary. Please check that the manual will cover your model before purchase and if you are unsure please contact us first.
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