Adjusting The Throttle Position Sensor (When Disassembling Or Replacing The Throttle Body) - Yamaha F150A Service Manual

NOTE:
To measure the output voltage, connect the
positive tester probe to the pink wire of the
test harness and the negative tester probe to
the orange wire of the test harness.
Digital circuit tester: 90890-03174
Throttle position sensor output
voltage:
Pink (P) – Black (B)
0.70 ± 0.02 V
7. Install the intake silencer.
8. Start the engine and measure the throttle
position sensor output voltage again.
Adjust the throttle position sensor if out of
specification.
Throttle position sensor output
voltage at engine idle speed:
Pink (P) – Black (B)
0.70 ± 0.02 V
Adjusting the throttle position
sensor (when disassembling or
replacing the throttle body)
1. Install the intake assembly.
2. Connect the test harness (3 pins) to the
throttle position sensor.
Test harness (3 pins): 90890-06793
3. Loosen the synchronizing screw 1.
63P3F11
Intake assembly and vapor separator
4. Loosen the throttle stop screw 2 and
fully close the throttle valves #1 and #2.
5. Turn the engine start switch to ON.
6. Loosen the throttle position sensor screw
and adjust the throttle position sensor
output voltage to specification.
7. Operate the throttle valves several times.
8. Slowly tighten the synchronizing screw
and stop when the throttle position sen-
sor output voltage begins to change.
9. Tighten the throttle stop screw until it
lightly contacts the throttle body lever.
10. Operate the throttle valves several times
and make sure that the throttle position
S63P8130
sensor output voltage does not change.
11. Tighten the throttle position sensor
screw.
1
Throttle position sensor output
voltage:
Pink (P) – Black (B)
0.70 ± 0.02 V
1
2
S63P4280
3
2
4
S63P4240
5
6
7
8
9
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