Suzuki GN400 Supplementary Service Manual

1980–1982 Suzuki GN400 Service Documentation

• Covers the 1980–1982 Suzuki GN400, documenting technical specifications and service procedures distinct from the base SP400 model
• Official Suzuki Motor Co., Ltd. publication P/N SR-6600 (E-01, SUPPL. 2), published September 1980
• Contains 47 pages featuring exploded-view diagrams, electrical schematics, and tolerance charts
• Indexed PDF search covers every chapter and appendix
• Suitable for printing individual sections for shop-floor use
• Permanent availability in your purchase account — no re-buy required
• File downloads to your account within seconds of checkout
• This specific document serves as the primary supplement for GN400-specific features and adjustments

Component and System Technical Data

The 1980–1982 Suzuki GN400 service manual provides technical data for internal engine components, including valve clearance settings and piston-to-cylinder tolerances. Valve clearance for the intake is listed at 0.03–0.08 mm in the cylinder head specification table. Engine oil capacity is documented at 1600 ml for a standard oil change. The manual details the Mikuni BS36SS carburetor construction, including jet needle and pilot screw reference values for proper fuel mixture maintenance.

Electrical and Chassis Specifications

This publication includes detailed wiring diagrams for international market variants, including the E-01, E-02, and E-28 models. The Suzuki GN400 magneto pick-up coil resistance for the pulser coils is specified at 40–54 ohms. Front fork oil level is documented at 170 mm for the E-02 model and 207 mm for other markets. For those seeking how factory workshop documentation is structured, this resource offers precise tightening torque values for chassis and engine fasteners, presented in both kg-m and lb-ft. Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions. An original 47-page Suzuki factory supplement covering the 1980–1982 Suzuki GN400, documenting engine, chassis, electrical, and carburetor specifications for the SR-6600 model build.