2004-2005 Honda NRX 1800 Valkyrie Rune Service & Repair Manual (P/N 07W50-MCW-110)

• Official Honda Motor Co. publication (P/N 07W50-MCW-110, first edition May 2003) covering the SC53 series build
• Details 2004–2005 Honda NRX 1800 Valkyrie Rune models, including 49-state, Canada, and California-specific PGM-FI variants
• Delivers over 100 pages of system illustrations, technical schematics, and torque specifications
• Serves as the original factory reference for engine, drivetrain, chassis, and electronic fuel system settings

Component and System Details

This factory publication breaks down the mechanical layout of the NRX 1800 into 24 distinct sections. You get clear visibility into the complex PGM-FI fuel system, cooling routing, and internal engine assemblies like the cylinder head, valve train, and crankshaft. Chassis documentation details the trailing-link front suspension, rear wheel servicing, and the complete hydraulic braking network. Electrical sections map out the alternator, ignition, starter, and immobilizer technology using accurate wire routing diagrams. Before opening the high-pressure fuel circuits or bleeding the brakes, always verify your shop environment meets standard ventilation and safety requirements to prevent injury or accidental fluid combustion.

Specification Highlights

Having exact factory reference numbers on hand eliminates guesswork during a complex rebuild. Engine compression for the 1,832 cm³ flat-six stands at 1,383 kPa (201 psi) at 300 rpm. The manual documents a standard manifold absolute pressure at idle between 250–300 mmHg. Intake valve clearance requires 0.15 ± 0.03 mm. Exhaust valves need 0.22 ± 0.03 mm. Accurate torque values and lubrication points are mapped throughout the reference, showing exactly where to apply molybdenum disulfide oil or specific sealants to ensure a reliable seal.