1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 311Get this manual

1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 311

ENGINECOOLING DisassemblyInspection Polaris Piston InspectionMeasurement 1 Check piston for scoring or cracks in piston crown
if piston or cylinder is worn and recondition or replace as necessary 1Position each piston ring 12" (1 .3 cm) from the top
of the cylinder using the piston to push it squarely into placeMeasure installed gap with feeler gauge at both the top and
bottom of the cylinderNOTE: difference in end gap indicates cylinder taperThe cylinder should be measured for excessive taper
and out of roundReplace rings if the installed end gap exceeds the service limitNOTE: Always check piston ring installed
gap after re- boring cylinder or when installing new rings Cylinder CleaningCylinder Reconditioning Referto page 4.100 for