1992-1998 Kawasaki PWC Jet Ski Service Repair Manual., Page 208Get this manual
CLEANINGSPECTING
loss increased engine noise, unnecessary vibration, piston slap, and excessive oil consumptionThe limits indicated usuaHy to .0 0.005" (0.83 0.127mr-n) above the standard boreTherefore, if the bore is resized, it may sustain another 0.003 0.005!' (0.83 to 0.127mm) wear before second reboring is required provided the oversize pistons and matching are available