2000-2001 Kawasaki 1100 STX D.I. Jet Ski Factory Service Manual., Page 263Get this manual
APPENDIX 15-5 Troubleshooting
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 Igniter in EMMI trouble Reduced ignition coil output Loose wiring connection in ignition circuit
Fuel System Insufficientfuel supply to injector (PDS) Throttle valve does not fully open Fuel pump screen andor fuel filter clogged Faulty fuel pump
Flame arrester cllogged Muffler or exhaust system clogged Water or foreign matter in gasoline or engine oil Exhaust gas leak in engine compartment Igniter in EMM trouble Throttle body not adjusted Flame arrester or exhaust system clogged Carbon accumlulation combustion chamber in Wrong type of gasolline or oil Obstruction in oil pump hoses Cooling water line leaking or clogged