Yamaha MT-01 T 2005 - Checking the Intake Air Pressure Sensors

ELECTRICAL COMPONENTS
7-106
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a. Disconnect the decompression solenoid cou-
plers from the wire harness.
b. Connect the pocket tester (Ω × 10) to the de-
compression solenoid coupler as shown.
c. Measure the decompression solenoid (ther-
mistor) resistance.
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2. Check:
• Decompression solenoid resistance
Out of specification → Replace.
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a. Connect the pocket tester (Ω × 1) to the de-
compression solenoid coupler as shown.
b. Measure the decompression solenoid resis-
tance.
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EAS28410
CHECKING THE INTAKE AIR PRESSURE
SENSORS
The following procedure applies to both of the in-
take air pressure sensors.
1. Check:
• Intake air pressure sensor output voltage
Out of specification → Replace.
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a. Connect the pocket tester (DC 20 V) to the in-
take air pressure sensor coupler as shown.
b. Turn the main switch to “ON”.
c. Measure the intake air pressure sensor out-
put voltage.
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Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
green “1”
• Negative tester probe →
green “2”
Decompression solenoid
resistance
0.96–1.44 Ω at 20 °C (68 °F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
black “1”
• Negative tester probe →
black “2”
Intake pressure sensor output
voltage
2.4 V
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
pink/white “1” or pink/yellow
• Negative tester probe →
black/blue “2”
L
B/L P/W
1
2