1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 322Get this manual
MAINTENANCE SPECIFICATIONS MAINTENANCE SPECIFICATIONS ENGINE Model Cylinder: Bore size Taper limit Piston: Piston size "D" Measuring point "H" Piston clearance Oversize 2nd 4th
YFM350XP 82.9783.02 mm (3.2673.269 in) 0.05 mm (0.002 in) 82.9282.97 mm (3.2653.267 in) 5.5 mm (0.22 in) (From bottom line of piston skirts) 0.0400.060 mm (0.001570.00236 in) 83.5 mm (3.287 in) 84.0 mm (3.307 in) 0.5 mm (0.02 in) Intake side 19.00419.015 mm (0.74810.7486 in) 18.99119.000 mm (0.74770.7480 in)
Piston off-set Piston off-set direction Inside diameter (piston pin bore) Outside diameter (piston pin) Piston ring: Sectional sketch Top ring: