1986-1987 Honda ATC 125M Three-Wheeler Service Manual

Official Honda ATC125M service manual covering 1986 and 1987 models. Explains maintenance, troubleshooting, and repair procedures. PN 07740-HB6-0000.

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Document Details

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Document Number / Seller:
24935 / Mary Bell
File Size:
20.81 MB
File Type:
PDF
Language:
English
Pages:
196
Printable:
Yes
Category:
Three-Wheeler
Last updated / verified
Mar 24, 2025

Models Covered & Key Technical Specifications

Verified Instructional Technical Manual: Honda ATC 125M Three-Wheeler Service Manual Procedure-Database

Honda ATC 125M (07740-HB6-0000) — 1986–1987 Professional Reference Vault | ATC 125M Series Repository.

  • Designated Engine Displacement: 124 cc (4.9 cu in) signifies the primary cylinder volume Specification.
  • Primary Installation Footprint: The wheelbase measures 1,085 mm (42.7 in) as the standard distance between front and rear axles Configuration.
  • Defined Coupling Torques: The cylinder head bolt requires 10–14 N·m (1.0–1.4 kg-m, 7.2–10 ft-lb) for secure fastening Topology.
  • Defined System Fill: The fuel tank capacity is calibrated to 8.5 L (2.2 US gal, 1.9 Imp gal) corresponds to the operational envelope Framework.
  • Key Power Framework: 9.3 BHP at 7,500 rpm delivers the maximum horsepower output Benchmarks.
  • Essential Mass Specs: The dry weight is 125 kg (276 lb) as the total mass Requirements.

Professional Workshop Service Manual & Technical Specifications

Verified Instructional Technical Manual: Honda ATC 125M Three-Wheeler Service Manual Procedure-Database

Honda ATC 125M (07740-HB6-0000) — 1986–1987 Professional Reference Vault | ATC 125M Series Repository.

OEM guidelines are included for engine and chassis maintenance. Transmission service information covers gearshift linkage and clutch systems. HVAC system procedures are included for steering stem adjustments. Torque specifications are documented for front wheel hub nuts. Parts identification is covered for brake assemblies.

Engine Systems Overview

This manual details the engine's internal components, including the cylinder head, valves, camshaft, and related parts. It covers disassembly, inspection, and reassembly procedures to ensure proper engine function and longevity.

Chassis and Drivetrain Operations

Explore the intricacies of the ATC's chassis and drivetrain, from wheel and brake maintenance to the drive chain and rear axle. This section provides step-by-step guidance for each component.

Electrical System Diagnostics

Understand the ignition system, battery, charging system, and lighting circuits. Diagnostic procedures and troubleshooting tips are provided to help identify and resolve electrical issues efficiently.

Maintenance Schedules and Procedures

This manual outlines recommended maintenance schedules for the ATC, ensuring optimal performance and lifespan. It covers routine checks, fluid changes, and adjustments.

Conceptual-Layout: Honda Engine-Type: 4-stroke Asset-ID: 07740-HB6-0000

Service-Nexus Rating Architecture
Valve Clearance 0.08 mm Standard
Carburetor Float Level 10.7 mm Specification
Drive Chain Slack 10–20 mm Adjustment
Ignition Timing 10° ± 2° BTDC Specification
Compression Ratio 9.0:1 Standard

Engineering chapters address lubrication points, fuel system repairs, and the starter system. The document also details procedures for brake systems and suspension components, ensuring comprehensive coverage for all aspects of ATC maintenance and repair.

FAQ

What are the **correct** service interval parameters for the Honda ATC 125M? keyboard_arrow_down

Refer to the Maintenance Schedule on page 3-3 for detailed service intervals, including inspections, adjustments, and replacements for all major components.

What **documented** system architecture is provided for engine disassembly? keyboard_arrow_down

The manual provides detailed diagrams and step-by-step procedures for engine disassembly, covering the cylinder head, valves, camshaft, and related parts, with specific torque values and component specifications.

Determine the **precise** tool requirements for front wheel bearing replacement. keyboard_arrow_down

Page 11-8 lists the necessary tools for front wheel bearing replacement, including a bearing remover set (15 mm), driver, and attachment (42 x 47 mm), along with their respective part numbers.

What **proper** electrical values are provided for the ignition system? keyboard_arrow_down

The ignition system section (Chapter 14) details specific resistance values for the ignition coil and pulse generator, as well as ignition timing specifications (10° ± 2° BTDC at idle).

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Reviews (2)

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Rated 4 out of 5 stars
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This manual is a lifesaver for my 1986 Honda ATC 125M! The troubleshooting section helped me diagnose a starting issue quickly. The download process was seamless, and I received the link almost immediately after purchase. Highly recommend!