2011-2013 Kawasaki Jet Ski ULTRA 300X / 300LX Service Manual

2011–2013 Kawasaki Ultra 300X and 300LX Technical Reference

• Covers 2011–2013 Kawasaki Ultra 300X and 300LX Jet Ski models, including JT1500HBF and JT1500JBF variants equipped with the 1498 cc supercharged 4-stroke engine
• Official Kawasaki publication, 2012 edition, serving as the factory workshop reference for all maintenance and system diagnostics
• Contains 16 primary service chapters covering engine, fuel, cooling, electrical, hull, and drive systems, plus a full DFI troubleshooting guide
• Documents the 2.1:1 supercharger gear ratio and the TVS supercharger construction in significant technical depth
• Accessible from your device as soon as the order is placed
• OCR text layer lets you jump to a torque spec by keyword
• Laid out for standard letter and A4 printing
• This 2012 factory service publication is the primary source for the 300X and 300LX Jet Ski launch build, documenting specific DFI and ETV system parameters not found in supplemental literature

Engine and Fuel System Documentation

This manual provides extensive technical scope for the 1498 cc engine used in the 2011–2013 Kawasaki Ultra 300X and 300LX series. Detailed chapters encompass engine bottom end and top end construction, fuel injection (DFI) system components, the Eaton Twin Vortices Series supercharger, and cooling/bilge system maintenance. The technical chapters detail the specialized recovery procedures for submerged engines, a critical differentiator from traditional two-stroke watercraft documentation. Detailed exploded-view illustrations clarify part locations and assembly orientations throughout the watercraft.

Technical Specifications and Data

Technical information covers torque values for the complete fuel and engine management systems, including intake manifold and supercharger mounting fasteners. The manual provides reference values for the Electronic Throttle Valve (ETV) system, including input/output voltages for the APS and TPS sensors. The ignition system documents the digital transistor logic and timing advance ranges. Specifications for the factory workshop documentation structure appear throughout, defining operating limits for valve clearances, compression pressures, and oil capacities. Intake air pressure sensor output is documented at 1.43–1.55 V at standard atmospheric pressure. The supercharger drive belt tensioner is highlighted as a maintenance-free component. Recommended engine oil capacity is specified at 5.5 liters for a completely dry engine condition.

Reference only — always consult a certified technician before performing service on this equipment.

An official 2012 Kawasaki service manual covering the 2011–2013 Ultra 300X and 300LX, documenting complete mechanical, electrical, and fuel injection data for the JT1500H and JT1500J series watercraft.