2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 290Get this manual
APPENDIX 16-15 Troubleshooting
Inside Carburetor
Fuel feed line leaking or clogged Pulse line leaking or clogged Vent line clogged Faulty fuel pump Water in carburetor Carburetor diaphragm damaged Float arm not adjusted
Electrical System
Faulty or fouled spark plug Poor wiring connection Faulty magneto
Engine misfires, does not run smoothly Fuel System Fuel mixture too lean Fault in Carburetor