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Turn the camshaft holder to check the
bearing.
The bearing should turn smoothly
and
quietly.
Replace the camshaft assembly
jf
the
bearing does
not turn smoothly and
quietly.
Check the decompressor cam operation.
Press on the
decompressor
cam as shown.
As you press on one side, the
decompressor
cam
should lock above the base of the exhaust cam
lobe.
As you press on other side,
the
decompressor cam
lobe extend
below
the base of
the
exhaust cam
lobe.
CAMSHAFT INSTALLATION
Install camshaft holder
B
onto the camshaft assem-
bly.
Install
the
dowel
pins
if
they were removed.
Remove
the timing hole cap (page 3-10).
Rotate
the crankshaft using the
recoil
starter knob
and
align
the
"
T
~
mark on the flywheel with the
index
mark on
the rear
crankcase cover.
lubricate
the camshaft bearings and
cam
chain with
oil.
Install the
camshaft
holder plate
onto
the
camshaft
holders.
Align the timing mark
(i
ndex
line) on the cam
sprocket with the
cylinder
top surface, and
install
the cam chain onto
the
cam sprocket.
locate the dowel pins into the
holes
in the cylinder.
Make
sure
that
the
timing
mark
lines
up with the cyl-
inder top surface.
CYLINDER HEADIV ALVE/CAMSHAFT
CAM
DOWEL PINS
CAMSHAFT
HOLDER
B
INDEX
MARK
"T"
MARK
8-17
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