Clymer Repair Manual For Honda Atc, Trx, And Fourtrax 70-125, 1970-1987

DESCRIPTION

CHAPTER ONE / GENERAL INFORMATION

Manual organization / Service hints / Torque specifications / Safety first / Special tips / Parts replacement / Expendable supplies / Serial numbers / Tune-up and troubleshooting tools / "Off the road" rules / Safety

CHAPTER TWO / TROUBLESHOOTING

Operating requirements / Emergency troubleshooting / Engine starting / Engine performance / Engine noises / Excessive vibration / Front suspension and steering / Brake problems

CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP

Daily checks / Service intervals / Tires and wheels / Battery (models so equipped) / Periodic lubrication / Periodic maintenance / Engine tune-up / Valve clearance adjustment / Camshaft chain tensioner adjustment / Compression test / Spark plug / Contact breaker point ignition (ATC70, ATC90, 1979-1980 ATC110) / Solid state ignition (1981-on ATC110; ATC125M) / Carburetor / Storage

CHAPTER FOUR / ENGINE

Engine principles / Engine cooling / Engine lubrication / Servicing engine in frame / Engine / Cylinder head and camshaft / Valves and valve components / Camshaft chain and tensioner / Cylinder / Piston, piston pin and piston rings / Oil pump / Left-hand crankcase cover (ATC90 and ATC110) / Crankcase and crankshaft / Electric starter gears and left-hand crankcase cover spacer (ATC125M) / Recoil starter (70-110 cc) / Recoil starter (125 cc) / Break-in procedure

CHAPTER FIVE / CLUTCH AND TRAMSMISSION

Centrifugal clutch / Clutch inspection (all models) / Clutch release mechanism / External shift mechanism / Drive sprocket / Transmission and internal shift mechanism / Preliminary transmission inspection (all models) / 3-speed transmission and internal shift mechanism (70 cc) / 4-speed transmission and internal shift mechanism (70 cc) / 4-speed transmission and internal shift mechanism (90-125 cc) / Internal shift mechanism (all models) / Subtransmission

CHAPTER SIX / FUEL AND EXHAUST SYSTEMS

Carburetor operation / Carburetor service / Carburetor adjustments / Throttle cable / Choke cable (ATC125M) / Fuel tank / Exhaust system

CHAPTER SEVEN / ELECTRICAL SYSTEM

Charging system (models so equipped) / Alternator / Alternator (outer rotor type) / Alternator (inner rotor type) / Rotor testing / Stator coil testing / Voltage regulator/rectifier (models so equipped) / Contact breaker point ignition / Capacitor discharge ignition / Ignition coil / Starting system (models so equipped) / Starter / Starter solenoid / Lighting system (models so equipped) / Switches / Fuse

CHAPTER EIGHT / STEERING, SUSPENSION AND FRAME

Front wheel / Front hub / Handlebar / Front fork and steering head / Rear wheel / Rear axle and driven sprocket (ATC70) / Rear axle and driven sprocket (1970-1974 ATC90) / Rear axle and driven sprocket (1975-1978 ATC90 and 1979-1983 ATC110) / Rear axle and driven sprocket (1984 ATC110 and ATC125M) / Rear hub inspection (all models) / Rear axle inspection (all models) / Drive chain / Rear axle bearing holder / Tires and wheels / Frame

CHAPTER NINE / BRAKES

Front brake / Rear brake / Brake cable / Rear brake pedal

SUPPLEMENT / 1985 SERVICE INFORMATION

INDEX

WIRING DIAGRMS

MODELS COVERED:

• 1984-1985 HONDA ATC125M
• 1973-1974, 1978-1985 HONDA ATC70
• 1970-1978 HONDA ATC90
• 1986 HONDA Fourtrax 125
• 1986-1987 HONDA Fourtrax 70
• 1985 HONDA TRX125