- Fuel tank
Refer to "Fuel tank".
- Air filter case
Refer to "Air filter case".
- Air filter case duct
Refer to "Air induction system".
2. Check:
- Cylinder identification sensor output voltage
Out of specification → Replace.
Cylinder identification sensor output voltage (ON)
Less than 0 8 V.
Cylinder identification sensor output voltage (OFF).
More than 4.8 V.
a. Connect the test harness-speed sensor (3P) "1" to the speed sensor coupler and wire harness as shown.
b. Connect the pocket tester (DC 20 V) to the test harness-speed sensor (3P).
Pocket tester 90890-03112.
Analog pocket tester YU-03112-C.
Test harness-speed sensor (3P) 90890-03208 YU-03208.
- Positive tester probe: White/Black (wire harness color)
- Negative tester probe: Black/Blue (wire harness color)
![](https://motoinstruction.ru/img/yamaha/20/126987.jpg)
c. Turn the main switch to "ON".
d. Rotate the crankshaft.
e. Measure the voltage. With each full rotation of the crankshaft, the voltage reading should cycle from 0.8 V to 4.8 V to 0.8 V to 4.8 V.