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5-4-10
VALVE
CLEARANCE
ADJUSTMENT
Note:
Temporally fit the
flywheel
in position for
easy
operation.
(1)
Position piston at top dead center
of
compres-
sion stroke by matching the mark
"T"
of
fly-
wheel
with the thread hole
(@)
of
crankcase.
(2)
Loosen the nut
on
rocker arm and turn the pivot
to adjust the clearance between rocker arm
and valve stem end.
Tighten the nut on rocker arm.
-
Valve clearance
:
0.085
-
0.11
5
mm
(0.0034
-
0.0045
in.)
r
Note:
Check and adjust valve clearance while
engine is
cold.
Check
operation
of
valves
by
turning
crankshaft. Then recheck the valve clear-
ance.
(3)
Install rocker cover and gasket.
Rocker cover
M6
x
25
mm bolt
:
4
pcs.
5-4-11
SPARK
PLUG
Install spark plug
to
cylinder head.
Spark
plug
:
NGK
BPGES
I
Tightening torque
1
I
New
spark
plug
1
Retightening
1
11.8
-
14.7
N
m
(230
-
270
kg
.
cm)
(1
20
-
150
kg
-
cm)
22.6
-
26.5
N
-
m
(8.7
-
10.9
ft
.
Ib.)
(1
6.6
-
19.5
ft
Ib.)
I
1
'THREAD
HOLE
(01
Fig.
5-37
A
Fig.
5-38
-
38-