- Coolant temperature sensor
Refer to "Cylinder head".
Warning:
- Handle the coolant temperature sensor with special care.
- Never subject the coolant temperature sensor to strong shocks. If the coolant temperature sensor is dropped, replace it.
2. Check:
Coolant temperature sensor resistance. Out of specification → Replace.
Coolant temperature sensor resistance 5.21-6.37 k
![](https://motoinstruction.ru/img/yamaha/20/126969.jpg)
![](https://motoinstruction.ru/img/yamaha/20/126970.jpg)
![](https://motoinstruction.ru/img/yamaha/20/126971.jpg)
a. Connect the pocket tester (
![](https://motoinstruction.ru/img/yamaha/20/126972.jpg)
Pocket tester 90890-03112.
Analog pocket tester YU-03112-C.
b. Immerse the coolant temperature sensor "1" in a container filled with coolant "2".
Make sure the coolant temperature sensor terminals do not get wet.
c. Place a thermometer "3" in the coolant.
d. Slowly heat the coolant, then let it cool down to the specified temperature.
e. Measure the coolant temperature sensor resistance.
![](https://motoinstruction.ru/img/yamaha/20/126973.jpg)