2003-2005 Kawasaki Ultra-150 Jet Ski Factory Service Manual., Page 282Get this manual

2003-2005 Kawasaki Ultra-150 Jet Ski Factory Service Manual., Page 282

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16-16 APPENDIX Troubleshooting

Pinging

When the engine is idling hile cold

Excessive piston clearance Piston rings worn Piston worn Connecting rod bent, twisted<