Valve: Specifications

Valve head diameter
Valve face runout (T.I.R. max) 0.038 mm (0.015 inch)
Valve face angle
Exhaust 37.5 degrees
Intake 30 degrees
Valve seat width
Exhaust 1.80-2.56 mm (0.071-0.101 inch)
Intake 1.48-2.24 mm (0.058-0.088 inch)
Valve seat runout 0.0035 mm (0.0014 inch)
Valve seat angle
Exhaust 37.5 degrees
Intake 30 degrees