Honda Gold Wing GL1800 GL1800A Motorcycle Service Manual (2001-2005)

Honda GL1800 & GL1800A Gold Wing Service Manual – Comprehensive Repair & Maintenance Guide

The Honda GL1800 Service Manual is the definitive professional-grade resource for owners and technicians of the legendary Gold Wing touring motorcycle. Covering models from 2001 to 2005, this manual provides exhaustive technical data, step-by-step repair procedures, and detailed troubleshooting for both the standard GL1800 and the GL1800A (ABS-equipped) versions. Whether you are performing a routine oil change or a full engine overhaul, this guide ensures your vehicle maintains its peak performance and safety standards.

Targeted Model Coverage

This manual is specifically engineered for the following 1,832cc Flat-Six Honda Gold Wing models:

• Honda Gold Wing GL1800 (2001-2005)
• Honda Gold Wing ABS GL1800A (2001-2005)

Professional Technical Specifications

Gain access to factory-level data to ensure every adjustment is precise. This manual includes critical specifications such as:

• Engine Performance: Detailed firing order (1-4-5-2-3-6) and compression ratios (9.8:1).
• Fluid Capacities: Precise measurements for engine oil (3.7L with filter change), coolant (3.53L for radiator/engine), and final drive oil (120cm³).
• Torque Values: Comprehensive tables for everything from cylinder head bolts (44 N-m) to rear wheel nuts (108 N-m) and spark plugs (18 N-m).
• Electrical Data: Detailed bulb wattages, fuse ratings (including the 100A Main Fuse B), and sensor resistance values for the PGM-FI system.

In-Depth Maintenance & Systems Coverage

This manual goes far beyond basic instructions, providing high-value technical insights into the Gold Wing’s sophisticated systems:

• PGM-FI Fuel Injection: Complete diagnostic and service procedures for the throttle body, fuel injectors, and the manifold absolute pressure (MAP) sensor.
• Advanced Braking Systems: Specialized sections for the Linked Brake System (LBS) and the Anti-lock Brake System (ABS), including modulator removal and air gap inspections.
• Hydraulically Assisted Clutch: Understand and service the unique oil-boosted engagement system that provides the Gold Wing's signature light lever feel.
• Electric Rear Suspension: Full coverage of the spring preload adjustment system, including the actuator control motor and angle sensor.
• Chassis & Body: Precise removal charts for the complex fairing system, top shelter, and saddlebags to prevent damage to grommets and tabs.

Model Identification & Serial Numbers

For accurate parts ordering and vehicle verification, the manual provides the exact locations for:

• Vehicle Identification Number (VIN): Located on the left side of the frame near the steering head.
• Frame Serial Number: Stamped on the right side of the steering head.
• Engine Serial Number: Stamped on the right side of the crankcase.
• Throttle Body Identification Number: Stamped on the rear of the throttle body (e.g., GQ61A).

Expert Troubleshooting & Wiring

Never guess a repair again. The manual features a dedicated Troubleshooting section (Section 25) for engine performance issues, handling problems, and electrical faults. Combined with the comprehensive Wiring Diagrams (Section 23), you can trace circuits for the cruise control, audio system, and the Integrated Control Module (ICM) within the ECM.

Invest in the manual used by professional Honda technicians to keep your GL1800 Gold Wing in showroom condition for years to come.