2007-2010 Kawasaki Ultra 250X/260X/260LX PWC Factory Service Manual, Page 526Get this manual
16-74 APPENDIX Troubleshooting Guide
is not an exhaustive list, giving every possible cause for each problem listedIt is meant simply as rough guide to assist the troubleshooting for some of the more common difficulties
Engine Doesn't Start, Starting Difficulty
Starter motor not rotating Starter motor trouble (brushes worn) Battery voltage low Starter relay not contacting or operating Start button not contacting Wiring open or shorted Ignition switch trouble Engine stop switch trouble Fuse blown Immobilizer system trouble Starter motor rotating but engine doesn't turn over Reduction gear trouble Vehicle-down sensor (OFI) coming off Engine won't turn over Valve seizure Valve lifter seizure Cylinder, piston seizure Crankshaft seizure Connecting rod small end seizure Connecting rod big end seizure Camshaft seizure No fuel flow No fuel in tank Fuel tank air vent obstructed Fuel pump screen andor fuel filter clogged Fuel injector trouble Fuel line clogged Engine flooded Clean spark plug and adjust plug gap Starting technique faulty (When floodeddo not crank the engine with the throttle fully openedThis promotes engine flood because more fuel is supplied automatically by OF! No spark; spark weak Ignition coil faulty Vehicle-down sensor (OFI) coming off Vehicle-down sensor trouble Ignition switch turned OFF andor lanyard key not pushed under stop button Battery voltage low Spark plug dirty, broken, or gap maladjusted Ignition coil shorted or not in good contact Ignition coil trouble Spark plug incorrect Spark plug cap trouble Spark plug cap shorted or not in good contact IC igniter in ECU trouble Camshaft position sensor trouble Crankshaft sensor trouble Wiring shorted or open Fuse blown Fuelair mixture incorrect Air passage clogged Air filter poorly sealed Air bypass system (relief valveblow off valve) malfunction