Engine Coolant Temperature Sensor; Removal; Inspection - Suzuki VZ800 Service Manual

7-10 COOLING AND LUBRICATION SYSTEM

ENGINE COOLANT TEMPERATURE SENSOR

REMOVAL

• Lift and support the fuel tank. (6-3)
• Remove the frame head covers. (3-3)
• Disconnect the engine coolant temperature sensor coupler
1.
• Keep the motorcycle upright.
• Place a rag under the sensor and remove the engine coolant
temperature sensor 2.

INSPECTION

• Check the engine coolant temperature sensor by testing it at
the bench as shown in the figure. Connect the temperature
sensor 1 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
20 °C (68 °F)
40 °C (104 °F)
60 °C (140 °F)
80 °C (176 °F)
If the resistance is noted to show infinity or too much different
resistance value, replace the temperature sensor with a new
one.

* 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 1 and the column thermometer 2 with a pan.
Standard resistance
Approx. 2.45 kΩ
Approx. 1.148 kΩ
Approx. 0.587 kΩ
Approx. 0.322 kΩ
Oil