1992-1998 Kawasaki PWC Jet Ski Service Repair Manual., Page 207Get this manual
just little until the end gap is obtainedInspect the piston ring locating pins be sure they tightThere is one locating pin in each ring grooveIf the locating pins loose, the piston MUST be replaced
Over4zed Pistons Rings Scored blocks can be saved for further service by reboring and installing oversize pistons and piston ringsHOWEVER, if the scoring is over 0,0075'' (0.1 3mm) deep, the block cannot be eifecuse tively rebored forCheck with the IocaI dealer fur oversize piston availabilityIf oversize pistons not available, the local marine shop may have the facilities to "knurPVthe piston, making it largerFour inside cylinder bore measurements must he taken for each cylinder determine an out-of-round condition9 the maximum taper, and the maximurn bore diameterIn the accompanying illustratkm, measurements and D2 diameters measured at the top the cylinder right angles to each otherMeasurements I33 and D4 diameters measured from the top of the cylinder at right angles to each other
CyIider Block Service Inspect the cylinder block and cylinder bores cracks or other damageRemove carbon with fine wire brush on shaft attached to an electric drill or use carbon remover $ahtionSTOP: If the cylinder block is be submerged in carbon removal solution, the crankcase bleed system MUST removed from the block prevent damage bases and check valvesUse an inside micrometer or gauge and micrometer check the cylind for wear, Check the bare for out-ufround andor oversize boreIf the bore is tapered, out-of-round or worn more than the wear limit specified by the manufacturerr the cylindersdbe rebored provided oversize pistons and rings availableCheck with the dealer PRIOR rebaring If oversize pistons and matchkig rings not available, the Mock MUST be replaced