Honda NT650 Hawk GT 1988–1991 Parts Catalog (P/N 14MN8JM)

• Covers all 1988–1991 Honda NT650 Hawk GT models, including California and 49-state engine variants.
• Official 179-page American Honda Motor Co. publication (P/N 14MN8JM, first edition published December 1993) delivered as a highly legible PDF.
• Features 80 exploded-view diagrams spanning the engine, frame, chassis, electrical, and cooling systems.
• The definitive parts reference for the RC31E-series V-twin engine and chassis assembly.
• Complete Keihin carburetor component breakdowns, Nissin brake caliper schematics, wire harness routing diagrams, water pump assembly charts, and Showa front fork views.
• Documents RC310/RC311 frame variations, VDGKA/VDGLA carb identifiers, DID/RK drive chains, NGK/ND spark plugs, and steering stems.

Component Breakdown and Shop Utility

Tired of guessing which fastener goes where? This factory parts catalog gives you an uncompromising look at the entire 647cc motorcycle. It organizes every gasket, bolt, and major assembly into a clear, grid-referenced index to save you time at the workbench. You'll find detailed visual breakdowns of the complete cylinder head, transmission gear sets, crankshaft components, and the Hawk GT's signature single-shock rear suspension.

To guarantee accurate ordering, all diagrams pair directly with official Honda codes and detailed serial number cross-references. This takes the guesswork out of identifying the exact component for your specific '88 through '91 production unit, preventing costly mistakes at the parts counter. Whether you are tackling a major repair or just performing routine maintenance, having the correct factory part numbers streamlines the entire workflow.

Visual Reassembly for Complex Jobs

While this reference focuses on parts identification rather than written text, the exploded illustrations act as an intuitive, step-by-step visual sequence for complex jobs that usually force riders into an expensive mechanic's bay. The detailed diagrams provide the exact stacking order and hardware placement for overhauling the dual-carburetor setup, rebuilding the Showa front forks, or replacing the water pump seals.

When servicing the Hawk GT, technicians frequently encounter vacuum leaks at the aging carburetor insulator boots, which severely complicates idle troubleshooting. Furthermore, the eccentric adjuster and bearings within the single-sided Pro-Arm swingarm require precise alignment; neglecting the correct sequence of spacers and thrust washers shown in these diagrams often causes irreversible hub damage.

Technical Specifications and Identification Data

Beyond exploded views, this manual delivers critical baseline data for your daily workshop routine. Technical tables outline engine displacement, lubrication requirements, and specific tolerances like the intake valve clearance (0.13–0.17 mm). Need to replace aging lines? There is a highly practical bulk hose cross-reference chart for accurate fuel and vacuum routing.

When working on high-pressure fluid systems or suspension pivots, utilizing the exact factory hardware is vital; substituting incorrect fasteners during reassembly severely compromises vehicle integrity and road safety.

The catalog also verifies standard chassis and electrical specs. It documents factory tire pressures (33 PSI front, 36 PSI rear on 17-inch wheels) and includes a complete guide for identifying the correct YTX9-BS battery, headlight assemblies, and signal bulbs. This specific workshop asset ensures that your Hawk GT stays authentic and performs exactly as Honda intended.