1985-1990 Suzuki GSX250FWS Factory Service & Repair Manual (P/N 99500-32040-01E)

• Covers 1985–1990 Suzuki GS250FWS motorcycles equipped with the liquid-cooled DOHC four-cylinder engine and full-floater rear suspension.
• Official Suzuki publication 99500-32040-01E (First Edition, 1990) featuring 100 pages of exploded-view assembly diagrams and electrical schematics.
• Includes comprehensive baseline data and torque specifications to assist professional-grade maintenance and descriptive engine repair overviews.

Document Structure and Technical Overview

This factory service publication provides technical documentation for the Suzuki GS250FWS chassis and electrical systems. The content is organized by functional group, detailing factory specifications for the motor, transmission, and ignition components. You will find extensive exploded-view illustrations for the cylinder head, crankcase, oil pump, and carburetor assemblies. These visual aids offer a clear understanding of the original component layout during any major system repair.

For daily workshop tasks, having accurate baseline data is crucial to prevent component damage. Always verify standard shop safety protocols and wear appropriate protective gear before handling volatile fluids or tensioned suspension components. Performance data logged in this manual includes valve clearance limits, compression pressure ratings, and mandatory torque settings for critical fasteners. The reference material also covers standard charging voltages and ignition timing for the transistorized system. Essential fluid metrics are clearly outlined, listing the coolant capacity at 1400 ml and engine oil volume at 2400 ml (with filter change). This reference streamlines complex diagnostic work, eliminating guesswork for technicians and dedicated builders.