Specifications

°
7
To get disc angle, follow the steps below:
X
Y
A
B
C
a) turning the crankshaft counter-clockwise with minimum 3mm down on the valve (A)
b) turning the crankshaft clockwise in order to clear out the clearance from chain and camshaft
sprocket and reach the position of the valve 2 mm down before maximum lift (the value on the
disc is “X” from outside angle scale on the disc) (B)
c) then drive again the crankshaft clockwise to reach 2mm down after maximum lift and note the
crankshaft angle (value on the disc is “Y” from outside angle scale on the disc) (C)
d) Then calculate camshaft event angle:
Exhaust event angle = (X+Y) / 2 (From outside disc angle scale)