2001-2005 Honda GL1800 GL1800A Gold Wing Service Manual

2001-2005 Honda GL1800/GL1800A Gold Wing Motorcycle Service Manual for detailed procedures, troubleshooting, and specifications. Publication C4085-91017.

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Document Details

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Document Number / Seller:
25432 / Rebecca Campbell
File Size:
67.57 MB
File Type:
PDF
Language:
English
Pages:
759
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Dec 26, 2025

Models Covered & Key Technical Specifications

Honda GL1800 / GL1800A (C4085-91017) — 2001–2005 2001-2005 Honda GL1800 Gold Wing Service Manual | Repair and Maintenance Procedures.

  • Calibrated Engine Displacement: 1,832 cm³ (111.8 cu in) establishes the engine's core displacement Architecture.
  • Rated Maximum Weight Capacity: For safe operation, U.S.A. type limits are 189 kg (417 lbs) and Canada type are 193 kg (425 lbs) Protocol.
  • Critical Wheelbase Measurement: The frame's wheelbase is measured at 1,690 mm (66.5 in) Norms.
  • Universal Tire Specifications: The front tire size is 130/70R18M/C 63H, and the rear is 180/60R16M/C 74H Topology.
  • Maximum Fuel Tank Capacity: The fuel tank capacity reaches 25 liters (6.6 US gal, 5.5 Imp gal) Bounds.
  • Documented Engine Oil Capacity: For engine oil changes, 3.7 liters (3.9 US qt, 3.3 Imp qt) is specified after filter replacement Margin.

Manual Description & Preview

Essential Honda GL1800 / GL1800A Service Manual: 2001-2005 Gold Wing Motorcycle Procedure-Database

Operational-Framework: Honda GL1800/GL1800A (C4085-91017) // Documentation-Type: Service Manual / Repair Guide Logic // Machine-Range: 2001-2005.

Assessment-Element System-Path Calibration-Standards
Engine Specifications Flat Six Cylinder Arrangement 74.0 x 71.0 mm Bore/Stroke
Fuel System PGM-FI 40 mm Throttle Bore
Suspension Telescopic Fork Front Swingarm Rear
Brakes Hydraulic Double Disc Front Hydraulic Single Disc Rear
Electrical System Alternator Output 1 kW @ 2,400 rpm
Torque Values General Fasteners Standard Torque Chart Available

Maintenance information covers complete disassembly, component testing, and troubleshooting.

Engine and Drive Train

Service information details engine specifications, lubrication systems, cooling systems, and fuel delivery.

Chassis and Electrical

This section covers frame components, body panels, exhaust systems, suspension, brakes, and electrical systems including wiring diagrams.

Fuel System and Troubleshooting

Guidance on PGM-FI systems, fuel pump, injectors, sensors, and common troubleshooting steps.

Lubrication and Maintenance

Details on engine oil, oil filters, cooling systems, and the overall maintenance schedule for the motorcycle.

Documents torque specifications for critical fasteners to ensure proper assembly and thermal expansion compensation.

FAQ

What **essential** testing parameters are listed for the throttle body? keyboard_arrow_down

400 – 450 mm Hg (15.7 – 17.7 in Hg) is the manifold absolute pressure at idle, and 700 ± 70 rpm is the specified idle speed.

Check the **correct** diagnostic procedures for the PGM-FI system. keyboard_arrow_down

The PGM-FI system utilizes a self-diagnostic system, referencing pages 5-13 through 5-55 for failure codes and troubleshooting flow charts.

What does the **documented** fluid capacity requirements specify for the brake system? keyboard_arrow_down

Front brake reservoir capacity is not explicitly listed as a fluid capacity, but the rear brake reservoir check requires careful attention to the 'LOWER' level line.

Reference the **precise** component identification for the fuel system. keyboard_arrow_down

Component identification for the fuel system includes the Fuel Pump (5P connector), Fuel Tank, Fuel Level Sensor (2P connector), and EVAP Canister, as detailed on page 5-6.

What are the **proper** adjustment procedures for the throttle grip free play? keyboard_arrow_down

2 – 6 mm (1/12 – 1/4 in) is the specified throttle grip free play, adjusted via the upper adjuster located near the left frame rail.

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