2000–2003 Kawasaki 900 STX & 1100 STX D.I. Jet Ski Service Manual (P/N 99924-1264-51)

• Exact factory coverage: 2001 Kawasaki JET SKI 900STX, model JT900-C1, beginning with hull number KAW80001□001. No 2000, 2002, or 2003 JT900 application is listed.
• Two-PDF factory manual set: 427 PDF pages total - a 136-page 900STX Service Manual Supplement, P/N 99924-1264-51, and a 291-page 1100 STX D.I. base Service Manual, P/N 99924-1256-02.
• Fuel-system repair content covers the three Keihin CDCV carburetors, throttle and choke cable adjustment, carburetor synchronization, high-altitude setup, removal, disassembly, cleaning, inspection, assembly, float-arm adjustment, and fuel pump, tank, tap, and filter service.
• Engine and exhaust procedures cover top-end disassembly and inspection, engine removal and installation with bed-to-damper shimming, crankcase and crankshaft work, coupling and magneto service, oil-pump bleeding and testing, and expansion-chamber, manifold, and water-box service.
• Drive, pump, steering, and cooling work includes drive-shaft and holder service, axial-flow pump removal and overhaul, impeller inspection, steering and reverse-system adjustment, cable service, and cooling and bilge flushing.
• Electrical diagnosis is supported by the 900STX wiring diagram, ignition troubleshooting chart, starter and charging tests, CDI and pickup-coil checks, sensor inspection, multifunction-meter tests, switch and fuse checks, and component-specific electrical specifications.

How the Two Manuals Work Together

This is the supplement-and-base combination Kawasaki specifies for repair of the carbureted 900STX. The 900STX book documents the systems and procedures that differ from the 1100 STX D.I.; unchanged service operations refer back to the base manual. Kawasaki describes the pair as written primarily for watercraft mechanics in a properly equipped shop. Owners with basic mechanical knowledge and a working command of tools and shop procedures can also use it for basic maintenance and repair.

The supplement's foreword identifies base manual P/N 99924-1256-01. The supplied 291-page base PDF is marked P/N 99924-1256-02 and also contains the JT1100-F1 2001 supplement chapter. Its direct-fuel-injection, EMM/KADIAG, and Kawasaki Smart Steering material belongs to the 1100 models and should not be mistaken for 900STX system coverage. For the JT900-C1 fuel and ignition configuration, use the carburetor and CDI chapters in the 900STX supplement.

Factory Procedures and Service Limits

Measurements are organized as factory standards and service limits, allowing a technician to separate normal setup data from replacement limits. The set provides component torque and tightening-sequence tables, locking-agent and sealant notes, carburetor setup data, compression specifications, piston and cylinder inspection limits, crankshaft and connecting-rod checks, drive-shaft runout, pump and impeller clearances, and charging, ignition, sensor, and meter test values.

The maintenance material covers the initial and recurring service schedules, pre-ride-related checks, lubrication, fuel-filter and vent inspection, carburetor adjustment, bilge and cooling-system flushing, flame-arrester care, impeller inspection, coupling-damper inspection, and steering and shift cable checks. Storage and return-to-service procedures are followed by symptom-based troubleshooting for hard starting, misfire or rough running, and low engine power.

Diagrams and Required Service Tools

The 900STX supplement contains 12 system-level exploded-view sections, each carrying assembly references for torque, lubricant, sealant, or locking agent where applicable. Particularly useful named visuals include the Fuel System Diagram, Cable, Wire and Hose Routing layouts, 900STX Wiring Diagram, Ignition System Troubleshooting chart, Engine Bottom End exploded view, and Pump and Impeller exploded view.

Tool callouts identify the equipment expected for deeper repair work, including Flywheel Holder 57001-1313, Coupling Holder 57001-1423, Rotor Puller Adapter 57001-1279, Impeller Wrench 57001-1228, Impeller Holder 57001-1393, and Hand Tester 57001-1394. The manual also specifies pullers, bearing drivers, compression-test tooling, piston-ring tools, sealants, and a peak-voltage adapter where required.

The manual warns that rolling the hull onto its right side can let exhaust-system water enter the engine, while incorrect auxiliary-cooling flow can overheat the engine and exhaust or flood the cylinders into hydraulic lock. It also cautions against using a sharp edge on the carburetor diaphragm and against disconnecting live electrical connections, which can damage the CDI igniter. Fuel-system repair requires control of gasoline vapors, and the grounded battery lead should be disconnected before disassembly.