3-28
ENG
I
NE
• Install the valve spring retainer by pressing down
th
e spring
using the valve
lifter. Fit the cotter halves to the stem end and
release the lifter to
allow the cotter
CD
to wedge between the
retainer and the valve stem. Make sure that the rounded lip ®
of
the cotter fits snugly into the groove @ in the stem end.
Gil 09916-14510: Valve
spring
compressor
09916-14910:
Att
a
chment
09916-84511 : Tweezers
I
CAUTION
I
Be
sur
e
to
Install all
01
the parts In
their
original
posi-
tions.
CAMSHAFT/AUTOMATIC DECOMPRESSION
ASSEMBLY
I
CAUTION
I
Do
not
attempt
to
disassemble
the
camshaft/auto-
matic
decompression
assembly. It
is
not
serviceable.
AUTOMATIC DECOMPRESSION
Move the automatic decompression weight by hand to inspect if
it
is
operating smoothly. If the automatic decompression weight
does not operate
smoothly, replace it with a new one.
CAM
WEAR
Wom-down cams are often the cause of mistimed
valve opera-
tion resulting in reduced power output.
Measure the cam height
6 using the micrometer. If the cams
are worn to the service
limit, replace the camshaft
wi
th a n
ew
one.
S 09900-20202:
Micrometer
(25 - 50
mm)
~
Cam
height
e
Service
Limit
IN: 36.020
mm
(1
.4181 In)
EX: 34.900
mm
(1
.3740
in)
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