1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 24Get this manual
MAINTENANCE SPECIFICATIONS Model Valve Dimensions:
YFM350XA
Face Width Seat Width
Margin Thickness
All Head Dia
"B" Face Width
"C" Seat Width
INEXINEXINEXINEXINEXINEX
39.9-40.1 mm (1.571-1.579 in) 33.934.1 mm (1.335-1.343 in) 2.26 mm (0.09 in) 2.26 mm (0.09 in) 1.2-1.4 mm (0.047-0.055 in) 1.21.4 mm (0.047- 0.055 in) 1.0-1.4 mm (0.039-0.0551 in) 0.8-1.2 mm (0.0315-0.0472 in) 6.975-6.990 mm (0.2746-0.2752 6.955-6.970 mm (0.2738-0.2744 7.000-7.012 mm (0.2756-0.27617.5 mm (0.295 in)7.000-7.012 mm (0.2756-0.27617.5 mm (0.295 in)0.010-0.037 mm (0.0004-0.0015