Suzuki Bandit GSF400, GSF400M, GSF400N, GSF400P 1989-1991 Service Manual
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Suzuki Models Covered & Key Technical Specifications
Models: Suzuki Bandit GSF400, GSF400M, GSF400N, GSF400P
Sub-models / Variants: M, N, P (Model codes), California specification
Trade Names: Bandit
Model Years: 1989–1991
Serial Numbers: GSF400M: JS1GK75A M2100001~, GSF400N: JS1GK75A N2100001~, GSF400P: JS1GK75A P2100001~
Technical Data:
- Fork oil capacity (E-03, 28, 33 models): 494 ml
- Fork oil capacity (others): 495 ml
- Fork spring service limit: 262 mm
- Axle shaft runout service limit: 0.25 mm
- Wheel runout service limit: 2.0 mm
- Front disc thickness service limit: 4.0 mm
- Rear disc thickness service limit: 5.5 mm
- Steering tension initial force: 200–500 grams
Suzuki Manual Features & Content Preview
- OEM technical parts catalogue and service documentation covering the 1989–1991 Suzuki Bandit GSF400 (GSF400M, GSF400N, and GSF400P model variants).
- Official Suzuki parts catalogue GSF400P E3, published specifically for this production run.
- Features 40 detailed exploded-view mechanical diagrams and comprehensive torque-specification tables for the chassis, braking, and suspension systems.
- Includes model-specific variations for California units and sequential frame-number identifiers.
Chassis and Mechanical Systems Overview
The reference material outlines structural chassis maintenance. It details front and rear wheel assemblies, brake system servicing, and steering head configurations. Major chapters break down front fork overhauls. You will find specifics on damper rods, seals, and oil levels. The documentation also covers rear suspension adjustments, swingarm pivot management, and cushion lever lubrication requirements.
Additional sections map out essential engine and electrical components. These include the carburetor assembly, starter motor, generator, and wiring harnesses. Specialized sub-assemblies—like the ignition switch, radiator assembly, and clutch mechanism—are thoroughly diagrammed with their respective part references.
Precision Data and Reference Specifications
Clearance and wear-limit data for critical service intervals are heavily documented. For instance, axle shaft runout limits are specified at 0.25 mm. Wheel runout thresholds sit at 2.0 mm. Front brake disc thickness has a documented 4.0 mm service limit. Meanwhile, the rear brake disc remains within tolerance up to 5.5 mm. Torque specifications are tabulated for fasteners across all major assemblies to ensure accurate reassembly of components like steering stem nuts, fork clamps, and axle shafts. Prior to applying these specifications or tearing down major assemblies, it is vital to consult a certified technician to guarantee safe servicing procedures and equipment integrity.
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