ENGINE TUNE-UP
PROCEDURE
AJC belt
lf
necessary,
loosen the locknut
@
and adjust the belt deflec-
tion by turning
the adjusting bolt
@.
Tlghlening torque:
37-51
Ntn
(3.8-5.3
m-kg,
27-38 fl-lb)
:i\\
a.\.\
VALVE CLEARANCE
Inspecilon / Adiustment
1. Warm up the engine to normal
operating temperature.
2. Remove the air cleaner.
3. Remove
the accelerator cable-
4. Remove
the cylinder head cover.
5. Turn the crankshaft
and align the
timing mark so that the
piston
ofthe
No.1 or No.4 cylinder
is
atTDC of
compression-
6. Measure the valve clearances
O
with the No.'l cylinder at
TDC
of compression,
and those
of
@
with the No.4 cylin-
der at TDC of compression.
Valve
clearanae
(valve
slde)
lN : 0.30mm
(0.012
in)
EX: 0.30mm
(0.012
in)
7. lf il is not
within
specification,
adjust and
recheckthe valve
clearance.
B. Turn the crankshaft one
fLrll turn and measure
the remain-
ing valve clearances.
Adiust if necessary.
9.
Install the cylinder head cover.
Tightening
lorque
Bolt
@:
4.9-9.8 Nm
(50-90 cm-lq, 43-78 In-lb)
Bolt
@r
7.8-11
Nm
(80-110
cm-l€, 69-95
inlb)
Caution
.
It
the
head cover
gasket
is reused, apply sealant
in
the
groove
as shown.
10. lnstall the accelerator
cable.
'11.
lnstall the air cleaner.
12.
Start
the engine and check
for excessive tappet
noise.
B-7
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