2007-2008 Yamaha YFM700 Grizzly Factory Service Manual, Page 196Get this manual

2007-2008 Yamaha YFM700 Grizzly Factory Service Manual, Page 196

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CYLINDER AND PISTON

CHECKING THE PISTON PIN 1 Check: piston pin Blue discolorationgrooves Replace the piston pin and then check the lubrication system
2 Measure: piston pin outside