2006-2009 Yamaha YFM700RV Raptor 700RV factory service manual, Page 186Get this manual
CYLINDER AND PISTON
3Measure: piston ring end gap Out of specification Replace the piston ringNOTE: The oil ring expander spacer's end gap cannot be measuredIf the oil ring rail's gap is excessive, replace all three piston ringsPiston ring end gap Top ring 0.200.35 mm (0.0080.014 in) Limit: 0.60 mm (0.024 in) 2nd ring 0.350.50 mm (0.0140.020 in) Limit: 0.85 mm (0.033 in) Oil ring 0.200.70 mm (0.0080.028 in)