Honda GL1500C/CT/CF Valkyrie, Valkyrie Tourer & Valkyrie Interstate Motorcycle Service Manual (1997–2003)

Honda GL1500C/CT/CF Valkyrie Professional Service Manual (1997-2003)

Master the maintenance and repair of your legendary six-cylinder powerhouse with the definitive factory-style service manual. This comprehensive guide covers the entire production run of the 1520cc Flat-Six Honda Valkyrie series, providing the same technical depth used by certified Honda technicians to keep these muscle cruisers in peak operating condition.

Engineered for Every Valkyrie Model

This manual is specifically designed to support the distinct variations of the GL1500 platform:

• GL1500C Valkyrie (1997-2003): The original stripped-down performance cruiser.
• GL1500CT Valkyrie Tourer (1997-2003): Factory-equipped with a windshield and hard saddlebags for the long haul.
• GL1500CF Valkyrie Interstate (1999-2001): The ultimate touring version featuring a full fairing, radio/audio system, and a 6.9-gallon fuel tank.

Professional Technical Depth & Added Value

Whether you are performing a simple oil change or a full engine teardown, this manual provides clear, step-by-step instructions. It is optimized for clarity, ensuring that even complex tasks like carburetor synchronization for the six CV semi-down-draft units are manageable.

Essential Model-Specific Features Inside:

• Engine & Drivetrain: Detailed service for the 1,520 cm³ belt-driven OHC engine, including timing belt replacement and valve clearance (IN: 0.15mm / EX: 0.22mm).
• Interstate Specials (GL1500CF): Dedicated sections for the unique Audio System, Radio, and the specialized Combination Meter with LCD.
• Cooling System: Full procedures for the liquid-cooled system, including the 3.75-liter radiator capacity and thermostat testing.
• Model Identification: Precise locations for vital numbers to help you identify your specific machine:
  • VIN: Left side of the frame near the steering head.
  • Engine Serial Number: Stamped on the rear side of the right crankcase.
  • Frame Serial Number: Stamped on the right side of the steering head.
  • Color Label: Attached to the frame down tube under the left side cover.

Expert Maintenance Specs

This manual eliminates guesswork by providing exact values:

• Spark Plugs: NGK (DPR7EA-9) or DENSO (X22EPR-U9) with a 0.8-0.9mm gap.
• Torque Values: Critical settings such as the Cylinder Head Bolts (44 N-m / 33 lbf-ft) and Clutch Center Lock Nut (127 N-m / 94 lbf-ft).
• Lubrication: Accurate capacities for Engine Oil (3.7L after filter change) and Final Drive Oil (150cm³ after draining).

Why This Manual is a Must-Have

Beyond basic repairs, this guide includes advanced troubleshooting sections to diagnose everything from "hard to shift" transmissions to ignition system peak voltage testing (100V minimum). With detailed wiring diagrams and cable routing for all three models, you can resolve electrical gremlins and maintain the factory-correct layout of your harness.

Stop relying on forum hearsay and get the facts directly from the source. This manual is the essential tool for every Valkyrie owner who values precision, safety, and the long-term performance of their Honda motorcycle.