1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 26Get this manual
MAINTENANCE SPECIFICATIONS Model Piston Ring: Sectional Sketch Top Ring YFM350XA
ISPEC f7 I
2nd Ring
Oil Ring End Gap (Installed)
Barrel 1.2 mm 3.3 mm Taper 1.5 mm 3.4 mm 2.8 mm 2.5 mm