1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 288Get this manual

1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 288

ENGINECOOLING Disassembly Inspection 780cc Models Connecting Rod Small End Inspection Cont4With pin and bearing centered
90 angle to the direction of the piston pinRecord the measurement for each pistonNOTE: The piston must be measured at this
point to provide accurate piston-to-cylinder clearance measurement3Subtract this measurement from the minimum cylinder measurement
recorded previouslyIf clearance exceeds the service limit, the cylinder should be re-bored and new pistons and rings installed
Piston Ring Installed Gap 1Position 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