2004-2007 Yamaha ATV Raptor 50 YMF50S Service Manual, Page 117Get this manual

2004-2007 Yamaha ATV Raptor 50 YMF50S Service Manual, Page 117

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CYLINDER AND PISTON EBS00252
a Top ring end Upper oil ring rail end Expander end Lower oil ring rail end 2nd ring end 20 mm (0.79 in)

Install: piston piston pin piston pin clips New