2001 Yamaha YFM660 Raptor Factory Service Manual, Page 217Get this manual

2001 Yamaha YFM660 Raptor Factory Service Manual, Page 217

CYLINDER AND PISTON

2.Position: Top ring 2nd ring Oil ring Offset the piston ring end gaps as showna Top ring end Oil ring end (lower) Oil ring end (upper) 2nd ring end

3.Install: Piston Piston pin Piston pin clips 3