5.3
COOLING
SYSTEM
68
mm
STROKE
SERIES
WSM,
01
160
Factory
Fan belt tension
(Deflection
A)
spec.
IEl
COOLING
SYSTEM
Approx.
10
mml10 kgf
Approx.
0.39
in./lO kgf
(22.1
Ibs)
CHECKING AND ADJUSTING
[I]
FAN
BELT
Radiator leakage
test pressure spec.
Fan
Belt
Tension
157 kPa
1.6
kgf/cm*
23
psi
Radiator Cap Tightness
1.
Set
a
radiator tester on the radiator cap.
2.
Apply the pressure
of
88
kPa
(0.9
kgfkmz,
13
psi)
and measure the time for the pressure to
fall
to
59
kPa
(0.6
kgfkmz,
9
psi).
3.
If
the measurement
is
less
than the factory
specification, replace the radiator cap.
More than
10
seconds
1
Radiator cap for pressure fall from
88
to
59 kPa from 0.9
to
0.6
kgf/cm ,from
13to9psi)
tightness spec.
(Pressure falling time)
1.
Measure the deflection
(A),
depressing the belt
halfway between the fan drive pulley
(4)
and
dynamo pulley
(2)
at
specified force
(98
N,
10
kgf,
22
I
bs).
2.
If
the
measurement
is
not the factory specification,
loosen the dynamo mounting screws
(l),
(3)
and
relocate the dynamo to adjust.
(1) Dynamo Mounting Screw
(2)
Dynamo Pulley
(3)
Dynamo Mounting Screw
(4)
Fan Drive Pulley
Never remove the radiator cap while operating or immediately after stopping. Otherwise, hot water
will
spout out from the radiator. Wait for more than ten minutes to cool the radiator, before opening the cap.
Radiator Water Tightness
1.
Pour
a
specified amount of water into the
radiator.
2.
Warm up
the
engine and stop
it.
3.
Set
a
radiator tester (Code
No.
07909-31551)
and
raise
the
water pressure to
the
specified pressure.
4.
Check the radiator for water leaks.
5.
For water leak from the pinhole, repair with the
radiator cement. When water leak
is
excessive,
replace the radiator.
I
I
I
I
CO1
OF068
I
S-117
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