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Valve Spring > < Valve Guide|Specifications
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Valve Seat: Specifications

Valve Seats

Upper Reduction Angle (A):

Inlet .........................................................................................................................................................................................................................  20°
Exhaust ...................................................................................................................................................................................................................  15°

Matching Surface Angle (B):

Inlet and Exhaust ....................................................................................................................................................................................................  45°

Lower Reduction Angle (C):

Inlet and Exhaust ....................................................................................................................................................................................................  60°

Valve Seat Width (a)

Inlet ..........................................................................................................................................................................................................  1.4 - 1.8 mm

Exhaust ..........................................................................................................................................................................................................  1.8 - 2.2 mm

Valve Spring > < Valve Guide|Specifications