Valve Seat

Valve head diameter-exhaust 30.12 - 29.87 mm (1.1858 - 1.176 inch)
Valve face runout 0.05 mm (0.0019 inch)
Valve face angle 45.75 - 45.25 degrees
Valve seat width-intake 2.1 - 1.9 mm (0.0827 - 0.0748 inch)
Valve seat width-exhaust 2.1 - 1.9 mm (0.0827 - 0.0748 inch)
Valve seat runout 0.025 mm (0.001 inch)
Valve seat angle 45.00 - 44.50 degrees