1994-1997 Yamaha WaveRider Service Manual LIT-18616-RA-00, Page 249Get this manual
SERVICE POINTS
Piston pin clip removal and installation 1Remove and install: Piston pin clip NOTE: _ Before removing and installing piston pin clip, cover crankcase with clean rag to prevent piston pin clip from falling into crankcase cavityPiston inspection 1Eliminate: Carbon deposits From the piston crown and ring groove
2Inspect: Piston wall Score marks -7 Repair or replaceUse #600800 grit wet sandpaperNOTE: Sand in criss-cross patternDo not sand excessively3Measure: Piston skirt diameter Use micrometerOut of specification -7 ReplacePiston diameter 83.897 ow 83.916 mm (3.3030 ow 3.3038 in) Distance 10mm (0.39 in)