Yamaha V Star 950 Service Manual page 379

• Tester positive probe →
black/blue "1"
• Negative tester probe →
brown "2"
b. Measure the engine temperature sensor
resistance.
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3. Install
• Engine temperature sensor
EAS28300
CHECKING THE THROTTLE POSITION
SENSOR
1. Remove:
• Throttle position sensor
(from the throttle body)
2. Check:
• Throttle position sensor maximum resis-
tance
Out of specification → Replace the throt-
tle position sensor.
Resistance
3.08–5.72 kΩ
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a. Connect the pocket tester (Ω × 1k) to the
throttle position sensor terminals as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
blue "1"
• Negative tester probe →
black/blue "2"
ELECTRICAL COMPONENTS
b. Measure the throttle position sensor maxi-
mum resistance.
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3. Install:
• Throttle position sensor
TIP
When installing the throttle position sensor,
adjust its angle properly. Refer to "THROTTLE
BODIES" on page 6-6.
EAS28410
CHECKING THE INTAKE AIR PRESSURE
SENSOR
The following procedure applies to the intake
air pressure.
1. Check:
• Intake air pressure sensor output voltage
Out of specification → Replace.
Intake air pressure sensor out-
put voltage
3.594–3.684 V at 25 °C (77 °F)
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a. Connect the pocket tester (DC 20 V) to the
intake air pressure sensor coupler as
shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
pink "1"
• Negative tester probe →
black/blue "2"
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