2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 203Get this manual
6-32 ENGINE TOP END Cylinder, Pistons
f ng ou Carnepuullsyhsuppreadthteeopiposoteendingofwtihth ryingr[Ahuomrbs and the on siemove
itRemove the 3-piece oil ring with your thumbs in the same manner
PistonCylind er Installation
If new cylinder is used, use new piston ringsIf new pistons andor new cylinder are installed, apply
thin coat of molybdenum disulfide oil solution to the new pistons and cylinder boresa ng Ignrstovllethe ohileriendex[pa] nbduettr t[og]einhehr.e bottom piston ring so sB Install the oil ring steel rails, one above the expander and one below it
Spread the rail with your thumbs, but only enough to fit Release the rail into the bottom piston ring grooveThe oil ring rails have no "top" or "bottom"m he Do tnol ttheixtoupprting [tAp saontdhaechoendRr"inm.ark [B] faces upIns alttInstall the second ring [C] so that the "RN" mark [D] faces the ra the n