1998-2000 Yamaha WaveRunner GP800 Factory Service Manual, Page 96Get this manual
SERVICE POINTS Piston pin clip removal and installation 1Remove and install: Piston pin clip
Before removing or installing the piston pin clip, cover the crankcase opening with clean rag to prevent the piston pin clip from falling into the crankcasePiston inspection 1Eliminate: Carbon deposits (from the piston crown and piston ring grooves)