Valve Seat: Specifications

Valve Seat
Angle 45°
Seat Diameter - Intake 33 mm (1.299 in.)
Seat Diameter - Exhaust 28 mm (1.102 in.)
Runout (Max.) 0.05 mm (0.002 in.)
Valve Seat Width - Intake and Exhaust 0.9 - 1.3 mm (0.035 - 0.051 in.)
Service Limit - Intake 2.0 mm (0.079 in.)
Service Limit - Exhaust 2.5 mm (0.098 in.)