Yamaha YXR70FX Service Manual page 297

2 1
5
3
4
FUEL INJECTION SYSTEM
Br/W B/L
6 - 27
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a. Connect the pocket tester (Ω × 100) to the
intake air temperature sensor terminal as
shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Positive tester probe → brown/white 1
Negative tester probe → black/blue 2
b. Immerse the air temperature sensor 3 in a
container filled with water 4.
TIP:
Make sure that the air temperature sensor ter-
minals do not get wet.
c. Place a thermometer 5 in the water.
d. Slowly heat the water, then let it cool down
to the specified temperature.
e. Measure the air temperature sensor resis-
tance.
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FI
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