Kawasaki Jet Ski 800 SX-R JS800-A1 Factory Service & Repair Manual (P/N C4085-91017)

• Covers the 2003 Kawasaki Jet Ski 800 SX-R (JS800-A1) equipped with the 781 mL 2-stroke twin-cylinder engine
• Original OEM publication (C4085-91017) featuring 254 pages of technical reference data and specific repair parameters
• Includes 56 detailed exploded-view diagrams with corresponding torque values

This authoritative OEM publication documents the exact factory specifications for the JS800-A1 stand-up watercraft. It serves as the primary reference for technicians and experienced owners needing precise measurements and assembly data. You will find extensive details covering the engine top end, exhaust, fuel delivery, electrical components, and the pump/impeller assembly.

The manual provides essential technical baselines, including detailed coverage of the dual-Mikuni BN40-38 carburetor configuration and the digital CDI ignition system. Critical fastener torque specs are clearly outlined, such as the multi-stage cylinder head bolt sequence (29.4 Nm / 22 ft-lb) and the carburetor mounting bolts (18 Nm / 13 ft-lb). It also lists internal tolerances like the standard piston ring end gap (0.25–0.40 mm) and electrical parameters including the 12 V 18 Ah battery capacity.

Whether you are performing a complete engine overhaul or routine hull maintenance, having the correct factory data on hand prevents costly mistakes in the workshop. Always consult a certified technician before performing heavy structural or mechanical work, as improper handling of marine equipment poses severe safety risks. This guide delivers the exact OEM metrics required for a professional-grade repair job.