2003 Kawasaki JetSki 800 SX-R Factory service manual, Page 243Get this manual
15-20 APPENDIX Troubleshooting
Piston worn Connecting rod bent, twisted
Low engine power (This trouble often has more than one cause, and trouble symptoms may not be clear)
Ignition System Spark plug gap or heat range wrong Ignition timing wrong Reduced ignition coil output Loose wiring connection in ignition circuit Fuel System Insufficient fuel supply to carburetor Carburetor diaphragm damaged Pulse line leaking or clogged High speed nozzle clogged Throttle valve does not fully open Fuel filter screen clogged Faulty fuel pump Other Flame arrester clogged Muffler or exhaust system clogged Water or foreign matter in gasoline Exhaust gas leak in engine compartment Overheating Ignition wrong Carburetor not adjusted Carbon accumulation in combustion chamber Wrong type of gasoline or oil Wrong gasloil mixture Cooling water line leaking or clogged Heavy Fuel Consumption Carburetor not adjusted Flame arrester clogged Muffler or exhaust system clogged Worn cylinder, piston or piston ring Fuel feed line leaking Carburetor diaphragm needle dirty or damaged