2004-2005 660 Yamaha Rhino Factory Service Manual, Page 164Get this manual

2004-2005 660 Yamaha Rhino Factory Service Manual, Page 164

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CYLINDER AND PISTON

bIf out of specification, rebore or replace the cylinder, and replace the piston and piston rings as set
2nd step: aMeasure piston skirt diameter "P" with microm