2007-2010 Kawasaki Ultra 250X/260X/260LX PWC Factory Service Manual, Page 84Get this manual

2007-2010 Kawasaki Ultra 250X/260X/260LX PWC Factory Service Manual, Page 84

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FUEL SYSTEM (OFI) 3-25 Troubleshooting the OFI System

spark plug loose (tighten it)spark plug dirty, broken, or gap maladjusted (remedy it)spark plug incorrect (replace it)knocking (fuel