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7·8
COOLING
AND
LUBRICATION
SYSTEM
ENGINE COOLANT TEMPERATURE SEN-
SOR
REMOVAL
• Remove the front seat.
(0=8-6)
• Lift and support the fuel tank.
(0=5-5)
• Disconnect the engine coolant temperature sensor coupler.
• Keep the motorcycle upright.
• Place a rag under the sensor and remove the engine coolant
temperature sensor
CD.
INSPECTION
• Check the engine coolant temperature sensor by testing it at
the bench as shown in the figure. Connect the temperature
sensor
CD
to a circuit tester and place it in the oil contained in
a pan, which is placed on a stove.
• Heat the oil to raise its temperature slowly and read the col-
umn thermometer
(2)
and the ohmmeter.
• If the temperature sensor ohmic value does not change in the
proportion indicated, replace it with a new one.
~
Temperature sensor specification
Temperature Standard resistance
20°C
(68
OF)
Approx. 2.45 kQ
50°C
(122
OF)
Approx. 0.811 kQ
80°C
(176
OF)
Approx. 0.318 kQ
110°C
(230
OF)
Approx. 0.142 kQ
If the resistance is noted to show infinity or too much different
resistance value, replace the temperature sensor with a new
one.
I CAUTION I
* Take special care when handling the temperature
sensor. It may cause damage if it gets a sharp impact.
* Do
not
contact the engine coolant temperature sen-
sor
CD
and the column thermometer
(2)
with a pan.
(2)
\