Honda ATC 110 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 110 Specifications

General

Displacement	105cc
Cooling System	Air-cooled
Engine Type	Four-stroke, single-cylinder
Transmission	4-speed with automatic clutch
Drive System	Chain drive
Suspension	Rear: Swingarm
Brakes	Rear: Drum
Tires	Rear: 22x11-8

Summary

Serial Number Locations

Maintenance and Lubrication

Checking and Changing Oil

Procedures for checking engine oil level, changing oil, and cleaning oil filters.

Drive Chain and Chassis Lubrication

Steps for cleaning, lubricating, and adjusting the drive chain, plus chassis lubrication points.

Service Checks and Adjustments

Brake, Clutch, and Throttle Cable Adjustments

Adjusting critical controls like brakes, clutch, and throttle cable for safe operation.

Fuel System Maintenance

Air Filter, Fuel Filter, and Carburetor Service

Procedures for maintaining air filter, fuel filter, and carburetor components.

Fuel Lines and Spark Arrestor

Inspecting fuel lines for damage and servicing the spark arrestor.

Tune-Up Procedures and Specifications

Engine Tune-Up and Timing

Performing compression tests, valve adjustments, and ignition timing.

Tune-Up Specifications

Reference table for engine tune-up related specifications.

Engine and Transmission Systems

Engine Removal and Top End Service

Steps for engine removal and servicing cylinder head, cylinder, and piston.

Crankcase Component Service

Servicing clutch, oil pump, shift mechanism, and internal crankcase cover components.

Engine Specifications and Torque

Detailed engine specifications and torque values for assembly.

Electrical System Diagnostics

Ignition, Charging, and Starting Systems

Testing and troubleshooting ignition, charging, and starting circuits.

Electrical Switches and Neutral Switch

Testing various electrical switches and the neutral switch function.

Chassis and Suspension Service

Wheel and Brake System Service

Procedures for wheel removal, brake service, and bearing inspection.

Front End and Rear Axle Systems

Servicing steering stem, front end, and rear axle components.

Chassis Torque Specifications

Reference table for chassis component torque values.