HYOSUNG COMET 125 Service Manual page 87

The notch mark of exhaust camshaft should be
aligned with the plane of cylinder head.
At that time, the 2 arrow of exhaust camshaft sprock-
et should be in a vertical position to the plane of
cylinder head when exhaust camshaft sprocket was
geared into camchain.
The notch mark
toward the outside and aligned with the plane of
cylinder head. At that time, the 3 arrow of intake
camshaft sprocket should be in a vertical position to
the plane of cylinder head when the intake camshaft
sprocket was geared into the camchain.
Gear into the chain at the 3 arrow of intake sprock-
et that count the 16th of chain roller pin from the
roller pin on the 2 arrow of exhaust sprocket to the
intake camshaft.
CAUTION
The rear cylinder gear into that count the 16th of
chain roller pin from the 3 arrow of intake
sprocket to the 2 arrow of exhaust sprocket.
Install the 3 arrow punching mark of intake
camshaft sprocket with the surface of cylinder head
vertically.
The camshaft sprocket use the intake and exhaust (the
front and rear is different) in common, but use to dis-
tinguish according as installation with the camshaft.
For example,
Front exhaust : Camshaft exhaust + Front sprocket
(Install the camshaft pin at the E marking hole.)
Rear intake : Camshaft intake + Rear sprocket
(Install the camshaft pin at the RI marking hole.)
of intake camshaft should be
EX
Exhaust
Notch mark
Pin installation
Exhaust
[ Front Cylinder ]
Pin installation
Exhaust
[ Rear Cylinder ]
ENGINE 3-50
IN
Intake
16Pin
Notch mark
Intake
Intake