Suzuki GSX1100, GS1150 manual, 1980-1987 models

Suzuki GSX1100 / GS1150 Factory Spec & ID Reference (1980–1986)

Built for fast model matching

Coverage centers on Suzuki GSX1100 and GS1150 applications across 1980–1986, with model-code separation that helps confirm you’re looking at the right variant before you invest time in details. Key identification points (VIN and engine serial locations) sit alongside baseline specification pages, so fit can be validated quickly.

Fit snapshot (model + spec anchors)

• Make/coverage: Suzuki — 1980, 1981, 1982, 1983, 1984, 1985, 1986
• Model family: GSX1100 and GS1150, including GSX1100E/ES/EF (+F/G suffixes) and GS1150E/EF/ESF/EFF (+G/FG)
• VIN stamping location: steering head pipe
• Engine serial location: right side of crankcase
• Fuel baseline: 85–95 octane or higher (unleaded/low-lead noted)
• Oil baseline: API SE or SF, SAE 10W/40 viscosity reference

Key specifications (from the spec section)

Covered variants and identification boundaries

The application list differentiates multiple sub-models under the GSX1100 and GS1150 umbrella (E/ES/EF/ESF/EFF/EG/ESG/EFG plus GSX1150EFG). That model-code granularity is especially useful when cross-checking chassis and engine identifiers, since the VIN and engine-serial reference points are explicitly called out for confirmation.

Technical anchors you can cross-reference quickly

The specification pages include a compact set of “hard numbers” that work well as quick-fit signals: overall dimensions (length 2240 mm, height 1140 mm, wheelbase 1500 mm, ground clearance 155 mm) and dry mass (232 kg). Chassis tire sizing is listed as 110/90 V16 (front) and 130/90 V17 (rear), with normal solo riding pressures shown as 250 kPa front and 250 kPa rear. Electrical references include ignition timing baselines (10° B.T.D.C. below 1,500 r/min and 32° B.T.D.C. above 3,500 r/min) and spark plug families (NGK D9EA / DENSO X27ES-U for specified markets; NGK DR8ES / DENSO X27ESR-U for others), plus generator type (three-phase A.C. generator).