Service Specifications

CYLINDER HEAD

Combustion Chamber Volume 50.6 cc (3.09 cu. in.)

Valve Guide I.D. (Inside Diameter) 8.0 mm (0.315 in.)

Valve Guide O.D. (Outside Diameter) 13.0 mm (0.512 in.)

Repair Valve Guide O.D. 13.35 mm (0.526 in.)

Valve Guide Length,

Intake 45.0 mm (1.772 in.)

Exhaust 49.0 mm (1.929 in.)

Valve Seat Angle,

Intake 45°

Exhaust 45°

Flatness (Max. Warpage) (Not Resurfaceable) 0.051 mm (0.002 in.)

Head Gasket Thickness1 0.45 mm (0.057 in.)

Cylinder Head Height 110.83 mm (4.363 in.)