Description
This Clymer Yamaha Timberwolf ATV 1989-2000 Repair Manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1989-1991 Yamaha YFM250 Moto-4, 1992-1998 Yamaha YFB250, and 1994-2000 Yamaha YFB250FW ATVs.
1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
Includes everything you need to know to perform tune-up and routine maintenance on the engine, clutch and transmission, fuel and exhaust, ignition system, steering and suspension, wheels, brakes and tires, electrical system, frame and body. Features complete wiring diagrams and 522 illustrated pages.
Table of Contents
QUICK REFERENCE DATA
CHAPTER ONE, GENERAL INFORMATION
Manual organization, Notes, cautions and notes, Safety first, Service hints, Washing the vehicle, Torque specifications, Special tips, Safety first, Fasteners, Lubricants, 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 safety, Storage
CHAPTER TWO, TROUBLESHOOTING
Operating requirements, Troubleshooting instruments, Starting the engine, Starting difficulties, Engine starting troubles, Engine is difficult to start, Poor idle speed performance, Poor medium- and high-speed performance, Engine starting system, Charging system, Ignition system, Fuel system, Engine overheating, Engine, Engine noises, Engine leak down test, Clutch, Transmission, Drive train noise, Handling, Frame noise, Brakes
CHAPTER THREE, LUBRICATION, MAINTENANCE AND TUNE-UP
Pre-ride check list, Maintenance schedule, Tires and wheels, Battery, Lubricants, Cleaning solvent, Periodic lubrication, Unscheduled lubrication, Periodic maintenance, Unscheduled maintenance, Engine tune-up
CHAPTER FOUR, 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
CHAPTER FIVE, ENGINE LOWER END
Servicing engine in frame, Subtransmission and reverse gear assembly (1989-1991 2-wheel drive), Middle driven and reverse gear assembly (1992-on 2-wheel drive), Transfer gear assembly (4-2heel drive), 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
CHAPTER SIX, CLUTCH AND EXTERNAL SHIFT MECHANISM
Clutch cover, Clutch release lever mechanism, Clutch assemblies, One-way clutch inspection, External shift mechanism
CHAPTER SEVEN, TRANSMISSION AND INTERNAL SHIFT MECHANISM
Transmission troubleshooting, Transmission overhaul, Internal shift mechanism, Carburetor operation, Carburetor
CHAPTER EIGHT, 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
CHAPTER NINE, 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 (1989-1991 models), Handlebar cover and indicator lights (1992-on models), Switch, Relays, Fuses
CHAPTER TEN, FRONT SUSPENSION AND STEERING
Front wheel, Front hub/brake drum inspection (all models), Front hub/brake drum (2-wheel drive), Front hub/brake drum (4-wheel drive), Front suspension (all models), Shock absorber (1989-1991 models), Shock absorber (1992-on models), Steering knuckle (1989-1991 2-wheel drive), Steering knuckle (1992-on 2-wheel drive), Steering knuckle (4-wheel drive), Control arm (1989-1991 2-wheel drive), Control arm (1992-on 2-wheel drive), Control arm (4-wheel drive), Control arm bushing replacement (all models), Ball joint (1992-on 2-wheel drive, and all 4-wheel drive models), Handlebar, Tie rods, Steering shaft, Tires and wheels
CHAPTER ELEVEN, FRONT DRIVE MECHANISM FOUR-WHEEL DRIVE
Front drive axle, Front differential gearcase, Front drive shaft
CHAPTER TWELVE, REAR SUSPENSION AND FINAL DRIVE
Rear wheels, Rear hub inspection (all models), Rear hub (1989-1991 both sides and 1992-on left-hand side), Rear hub/brake drum (right-hand side 1992-on models), Rear axle (1989-1991 models), Rear axle (1992-on models), Final drive unit and short drive shaft, Tire changing and tire repairs, Shock absorber, Swing arm
CHAPTER THIRTEEN, BRAKES
Front brake drum (all models), Front drum brake, Rear brake disc (1989-1991 2-wheel drive models), Rear drum brake/hub (1992-on 2-wheel drive and al 4-wheel drive), Rear brake pedal
CHAPTER FOURTEEN, BODY
Seat, Front guard (1992-on models), Front bumper, Front carrier/rack, Rear carrier/rack, Rear bumper (1992-on models), Rear handle (1996-on), Fuel tank cover assembly (1992-on models), Front fender (1989-1991 models), Front fender (1992-on models), Rear fender (1989-1991 models), Rear fender (1992-on models), Footrests
INDEX
WIRING DIAGRAMS
