2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 17Get this manual
GENERAL INFORMATION 1-11 General pecifications
Items Engine Type Displacement Bore and Stroke Compression atio Maximum orsepower Maximum Torque Ignition System Lubrication System Carburetion System Starting System Cylinder Numbering Method Firing Order Valve Timing: Inlet Open Close Duration Exhaust Open Close Duration Tuning Specifications Spark plug: Type Gap Ignition Timing Idle Speed Compression Pressure Drive System Coupling Jet Pump: Type Thrust Steering Braking Performance Minimum Turning Radius Fuel Consumption Cruising Range Dimensions Overall Length JT1200-D1 4-stroke, DOHC, 4-cylinder, water cooled 199 mL (73.2 cu in 83 55.4 mm (3.27 2.18 in 11.291.9 kW (125 PS) 200 rmin (rpm) 125 Nm (12.7 kgfm, 92.2 ftlb) 500 rmin (rpm) Digital transistor (s) FI (fuel injection) MIKUNI AC 54 Electric starter Front (bow) to rear (stern), 1-2-3-4 1-2-4-3