Yamaha F75F - Checking the Intake Air Temperature Sensor

Ignition unit and component
5-30
a. Disconnect the pulser coil coupler “a”.
b. Connect the special service tool “1” to
the pulser coil coupler (pulser coil
end).
c. While cranking the engine, measure
the peak voltage under
unloaded con-
dition.
d. Connect the special service tool “1” to
the pulser co
il coupler (wire harness
end).
e. Remove the clip from the engine shut-
off switch.
f. While cranking the engine, measure
the peak
voltage under loaded condi-
tion.
g. Insert the clip into the engine shut-off
switch.
h. Start the engine, and then measure
the peak voltage at the specified en-
gine speed.
i. Stop the engine.
j. Disconnect the special service tool.
k. Connect the pulser coil coupler.
2. Measure:
• Pulser coil resistan
ce
Out of specification  Replace.
a. Disconnect the pulser coil coupler.
b. Measure the pulser coil resistance.
c. Connect the pulser coil coupler.
Checking the intake air temperature
sensor
The intake air pressure sensor is a component
of the intake air pressure/temperature sensor.
Test harness FWY–2 “1”
90890-06917
a
W/R
W/B
G/W G
BB
1
1
Test harness FWY–2 “1”
90890-06917
Resistance
396.0–594.0 
W/R
W/B
G/W G
BB
1
1