Water Temperature Meter Inspection - Suzuki RG250 Service Manual

6·13 ELECTRICAL SYSTEM
WATER TEMPERATURE METER INSPECTION
Ig. switch
Water temperature meter
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Temp. Gauo
As the coi l spring is installed on the needle shaft of
the water temperature meter, the needle is forcibly
back to the original position when ignition switch
is t urned OFF.
To test the water temperature meter two different
checks may be used. The first, and simplest test
wi l l tel l if the meter is operating but will not indi -
cate the meters accuracy throughout the range.
To perform this test, disconnect the BIG lead wire
of the water temperature meter from the water
temperature gauge. Connect a jamper wire be-
tween BIG wires coming from the main wiring
harness and engine ground. With the ignition
switch turned on, the water temperature meter
should indicate " @".
The second test will check the accuracy of the
meter in the " Q)" and " @ " positions.
Connect a 450·ohm resistor between the BIG lead
wire of the water temperature gauge and the
ground lead wire . The water temperature gauge is
normal if its pointer indicates the Q) position when
the specified voltage is applied to the circuit
and if its pointer indicates the @ position when
the resistor is changed to 4 ohms. If either o ne or
both indications are abnorma l, replace the water
temperature meter with a new one.
WATER TEMPERATURE METER
POSITION RESISTANCE
CD 450 n
®
232 n
@
27 n
® 4n
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