1992-1994 Suzuki GSX250F, GSX250FWN, GSX250FP, and GSX250FR Service Manual (P/N 99000-25010)
Suzuki Models Covered & Key Technical Specifications
Models: Suzuki GSX250F, GSX250FWN, GSX250FP, GSX250FR
Sub-models / Variants: GSX250FN (1992 Model), GSX250FP (1993 Model), GSX250FR (1994 Model)
Model Years: 1991–1994
Technical Data:
- Engine displacement: 248 cm³ (15.1 cu in)
- Engine type: Four-stroke, water-cooled, DOHC, 4-cylinder
- Compression ratio: 12.5:1
- Idle speed: 1,600 ± 100 r/min
- Transmission: 6-speed constant mesh
- Final reduction: 3.769 (49/13)
- Primary reduction: 2.285 (80/35)
- Fuel tank capacity: 12 L (3.2/2.6 US/Imp gal)
- Engine oil capacity (with filter change): 2.9 L (3.1/2.6 US/Imp qt)
- Front tire: 110/70-17 54H (tubeless)
- Rear tire: 140/70-17 66H (tubeless)
- Battery: 12V 21.6 kC (6 Ah)/10HR
Suzuki Manual Features & Content Preview
- Covers 1991–1994 Suzuki GSX250F, GSX250FWN, GSX250FP, and GSX250FR models, including specific 1992–1994 variants
- Original OEM publication, P/N 99000-25010, Copyright 1991, Suzuki Motor Corporation Overseas Service Department
- Includes 47 exploded-view diagrams, 12 electrical reference charts, 25 torque-specification tables, and complete diagnostic inspection criteria
- This 1991 first edition serves as the primary technical documentation for the GSX250F four-cylinder platform's international launch
Technical Scope and Content
The 1991–1994 Suzuki GSX250F service manual outlines factory maintenance and engine overhaul specifications for the water-cooled DOHC platform. The manual covers engine removal, transmission assembly, cooling system maintenance, and fuel system synchronization. The periodic tune-up section details service intervals for air cleaners, spark plugs, and brake fluid flushes.
For chassis and electrical work, the guide provides factory torque values for fasteners, steering stem bolts, and engine cover seals. It also walks you through carburetor synchronization using external balancer gauges and lists internal piston-valve inspection limits. The electrical chapters cover battery maintenance and charging-system diagnostics for the generator.
Specifications and Reference Values
Engine performance data includes the standard compression pressure range of 1,200–1,700 kPa. Tappet clearance specs are listed at 0.17–0.27 mm (intake, cold) and 0.20–0.30 mm (exhaust). The manual notes a fuel pump discharge volume of over 600 ml per minute and a coolant capacity of 2.0 liters (50:50 mix). Understanding factory workshop documentation helps owners quickly find the correct tightening torques for critical safety components like axle nuts and brake calipers.
Reference only — always consult a certified technician before performing service on this equipment. This official 229-page Suzuki factory manual provides the technical specifications and inspection procedures for the 1991–1994 GSX250F, covering the engine, chassis, and electrical systems for all four-cylinder models.
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