2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 246Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 246

CONNECTING RODS AND PISTONS 4Install: Piston ring (into the cylinder) Level the piston ring in the cylinder with the piston
spacer end gap cannot be measuredIf the oil ring rail gap is excessive, replace all three piston ringsPiston ring end gap:
Top ring: 0.330.45 mm (0.0130.018 in) 2nd ring: 0.700.85 mm (0.0280.033 in) Oil ring: 0.200.60 mm (0.0080.024 in) 6Inspect: