1988-1991 Honda NT650 Hawk GT Parts Manual
This parts manual for the 1988-1991 Honda NT650 Hawk GT provides comprehensive coverage of all components. Includes detailed diagrams and part numbers for efficient identification and ordering of replacement parts. Part No. 14MNBLM.
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Honda Models Covered & Key Technical Specifications
Models: Honda NT650 Hawk GT
Sub-models / Variants: 88, 89, 90, 91 (model years), California and non-California emissions variants
Build Years: 1988–1991
Serial Numbers:
- NT650 88: RC31E-2000015 to 2004639 (engine), RC310-JM000007 to JM003038 (frame)
- NT650 89: RC31E-2100031 to subsequent (engine), RC310-KM100011 to subsequent (frame)
- NT650 90: RC31E-2200001 to subsequent (engine), RC310-LM200001 to subsequent (frame)
- NT650 91: RC31E-2300001 to subsequent (engine), RC311-MM300001 to subsequent (frame)
Technical Data: - Engine: 647 cc V2, 4-stroke, water-cooled
- Valve Configuration: OHC, 3 valves per cylinder
- Transmission: 5-speed, constant mesh, wet multi-plate clutch
- Front Suspension: Telescopic fork
- Tires: 110/80-17 57H (front), 150/70-17 69H (rear)
- Fuel Capacity: 3.18 gal (standard), 2.10 gal (reserve)
Honda Manual Features & Content Preview
1988–1991 Honda NT650 Hawk GT Parts Catalog
- Covers 1988–1991 Honda NT650 Hawk GT models including 88, 89, 90, and 91 variants with both California and non-California engine codes
- Official American Honda Motor Co. publication 14MN8JM, first edition published December 1993
- Contains 80 individual exploded-view diagrams spanning engine, frame, chassis, electrical, and cooling systems
- Stored against your account so you can retrieve it after a hard-drive loss
- Full-text search finds any part number in seconds
- This edition serves as the definitive reference for the RC31E-series V2 engine and chassis assembly used across all Hawk GT model years
Component and System Documentation
The 1988–1991 Honda NT650 Hawk GT parts manual provides an exhaustive breakdown of the V2 machine, organizing every fastener, gasket, and major assembly into a grid-referenced catalogue. Each section details the engine and frame groups, including the complete cylinder head, transmission gear sets, crankshaft components, and the signature single-shock rear suspension arrangement. All diagrams include part numbers, official Honda codes, and detailed serial number cross-references to identify the correct component for specific 88 through 91 production units.
Specification and Identification Reference
Technical Reference and Identification
Technical reference tables provide engine displacement, lubrication requirements, and valve clearance specs for the 647 cc power plant. The document includes a comprehensive bulk hose cross-reference chart for fuel and vacuum lines, facilitating what an OEM service publication covers during restoration projects. Tire pressures for the 17-inch wheels are documented at 33 PSI front and 36 PSI rear. Valve clearance for the intake is listed at 0.13–0.17 mm in the cylinder head specification table. A complete parts list and index assist in verifying the correct YTX9-BS battery and other electrical components, including headlight and signal light bulbs. This 102-page factory publication documents the full assembly, chassis, and electrical specifications for the 1988–1991 Honda NT650 Hawk GT, serving as the essential reference for identifying authentic components across all model variants.
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