Specifications

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1.4.2 Setting the exhaust camshaft
As the exhaust camshaft is the first one driven by the chain, we recommend starting camshaft
setting on exhaust side. To measure cam position, fit the “Adjustement Tool” on the left side of
the cylinder head.
Be aware of the gage should measure a complete valve stroke (Drive 360° the camshaft to
control the gage stroke). You may adjust the gage altitude with the clamp screw. Once you have
been through this point, you may start camshaft position measurement.
 Measurement of event angle
By definition, event angle means the crankshaft position at maximum valve lift.
First of all, you have to reach quickly the maximum valve lift. Then, adjust the valve gage
scaling to “0 mm” position. In a similar way as the method we used to reach the piston TDC, we
are going to measure crankshaft angle on each side of the maximum valve lift. Moreover, to
clear out clearance between chain and cam sprocket, it is imperative to drive the crankshaft
clockwise.
Symmetrically around the maximum valve lift, we are reading the crankshaft position on the
disc. With these two values, we are calculating the exhaust camshaft event angle.