1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Manual, P/N 507262, Page 172Get this manual
Em 17Remove the rings from pistons using ring expanderDO NOT save ringsInstall new set of rings with complete
powerhead service18Use tool, as drawn on Page 4-8, to remove wrist pin retaining ringsDiscard rings
19The fit between the wrist pin to piston bosses is loose on both sidesUse OIIC Wrist Pin RemoverInstaller, PIN 342657, to remove wrist pin20Tap wrist pin out of piston41994