- Air filter case
Refer to "Air filter case".
2. Check:
- Throttle servo motor resistance
Out of specification → Replace the throttle body assembly.
Throttle servo motor resistance 1.23-1.67
![](https://motoinstruction.ru/img/yamaha/20/126980.jpg)
a. Disconnect the throttle servo motor coupler from wire harness.
b. Connect the pocket tester (
![](https://motoinstruction.ru/img/yamaha/20/126981.jpg)
Pocket tester 90890-03112.
Analog pocket tester YU-03112-C.
- Positive tester probe: Yellow/Red "1"
- Negative tester probe: Light green/Red "2"
![](https://motoinstruction.ru/img/yamaha/20/126982.jpg)
c. Measure the throttle servo motor resistance.