Honda ATC 125 User Manual

Honda ATC 70/125
MODEL COVERAGE
ATC 70
ATC 90
ATC 110
ATC 125
Covers 1985 and Earlier
INDEX
Serial Number Locations 2
MAINTENANCE 2
ENGINE AND TRANSMISSION 9
Engine Removal 9
Lubrication
Top End 9
Checking Engine Oil 2
Chassis Lubrication 3
Right Crankcase Cover 13
Left Crankcase Cover 15
Service Checks and Adjustments 3
Drive Chain 3
Lower End and Transmission 17
Clutch 3
Engine Specifications 18
Throttle Cable 3
Engine Toque Specifications 22
Front Brake 3
General Torque Specifications 23
Rear Brake 4
Tires 4
FUEL SYSTEM 23
Gas Tank 23
Steering Stem Bearings 4
Fuel System 4
Carburetor 23
Air Filter 4
Fuel Petcock and Lines 24
Fuel Filter 4
Carburetor 5
ELECTRICAL SYSTEM 24
Fuel Lines 5
Charging System 25
Spark Arrestor 5
Ignition System 24
Starting System 25
Periodic Maintenance Intervals 5
Electrical Switches 26
Recommended Lubricants 5
TUNE-UP 6
CHASSIS 27
Wheels 27
Compression Test 6
Camshaft Chain 6
Front Brake 27
Valve Clearance 6
Front Wheel Bearings 28
Ignition Timing 7
Rear Brakes 28
Front End 29
Contact Breaker Points 7
Carburetor Adjustment 8
Rear Axle 30
Tune-Up Specifications 8
Chassis Specifications 31
Chassis Torque Specifications 31

Honda ATC 125 Specifications

General

Brand	Honda
Model	ATC 125
Category	Bicycle
Language	English

Summary

MAINTENANCE

LUBRICATION

Details on checking and changing engine oil, including filter maintenance.

SERVICE CHECKS AND ADJUSTMENTS

FUEL SYSTEM

CARBURETOR

Procedures for carburetor removal, disassembly, and inspection.

Carburetor

Routine maintenance procedures for the carburetor.

PERIODIC MAINTENANCE INTERVALS

RECOMMENDED LUBRICANTS

TUNE-UP

COMPRESSION TEST

Performing a compression test to assess engine condition.

VALVE ADJUSTMENT

Steps for adjusting valve clearance when the engine is cold.

CONTACT BREAKER POINTS

IGNITION TIMING

TUNE-UP SPECIFICATIONS

CARBURETOR

Float Level

Checking and adjusting the float level in the carburetor.

ENGINE AND TRANSMISSION

ENGINE REMOVAL AND INSTALLATION

Steps for removing and reinstalling the engine and transmission components.

TOP END

Procedures for servicing the cylinder head, cylinder, and piston.

RIGHT CRANKCASE COVER COMPONENTS

CLUTCH

LEFT CRANKCASE COVER COMPONENTS

Component Inspection

GEAR ASSEMBLIES

LOWER END AND TRANSMISSION

Splitting The Crankcase

Procedures for separating the engine crankcase halves.

Inspection

CRANKSHAFT

Inspecting the crankshaft for run-out, clearances, and bearing condition.

ENGINE SPECIFICATIONS

ATC 70 ENGINE SPECIFICATIONS

Technical specifications for ATC 70 engine components.

ATC 90 ENGINE SPECIFICATIONS

Technical specifications for ATC 90 engine components.

ATC 110 ENGINE SPECIFICATIONS

Technical specifications for ATC 110 engine components.

ATC 125 ENGINE SPECIFICATIONS

Technical specifications for ATC 125 engine components.

TORQUE SPECIFICATIONS

ENGINE TORQUE SPECIFICATIONS

Torque values for engine component fasteners.

GENERAL TORQUE SPECIFICATIONS

General torque specifications for various fasteners.

ELECTRICAL SYSTEM

Ignition Coil

STARTING SYSTEM (ATC 125)

ELECTRICAL SWITCHES (ATC 110,125)

Breaker Point Ignition

CHASSIS

WHEEL REMOVAL AND INSTALLATION

FRONT BRAKE

Procedures for front brake removal, inspection, disassembly, and assembly.

REAR BRAKE

FRONT END

Bearing Adjustment

Removal

REAR AXLE

CHASSIS TORQUE SPECIFICATIONS

GENERAL TORQUE SPECIFICATIONS