Checking The Throttle Position Sensor - Yamaha VMAX 2009 Service Manual

2. Check:
• Coolant temperature sensor resistance
Out of specification → Replace.
Coolant temperature sensor re-
sistance
2.45 kΩ at 20 °C (68 °F)
290.0–354.0 Ω at 80 °C (178 °F)
M MMM M MMM M M MMM M
a. Connect the pocket tester (Ω × 100) to the
coolant temperature sensor terminals as
shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
b. Immerse the coolant temperature sensor "1"
in a container filled with coolant "2".
TIP
Make sure the coolant temperature sensor ter-
minals do not get wet.
c. Place a thermometer "3" in the coolant.
3
d. Slowly heat the coolant, and then let it cool
down to the specified temperature.
e. Measure the coolant temperature sensor re-
sistance.
L LLL L LLL L L LLL L
3. Install:
• Coolant temperature sensor
Coolant temperature sensor
18 Nm (1.8 m·kgf, 13 ft·lbf)
EAS28300
CHECKING THE THROTTLE POSITION
SENSOR
1. Remove:
• Throttle position sensor
(from the throttle body)
M MMM M M MMM M M MMM M
1
2
L LLL L L LLL L L LLL L
ELECTRICAL COMPONENTS
EWA2S31016
WARNING
• Handle the throttle position sensor with
special care.
• Never subject the throttle position sensor
to strong shocks. If the throttle position
sensor is dropped, replace it.
2. Check:
• Throttle position sensor maximum resistance
MMM
Out of specification → Replace the throttle
position sensor.
M MMM M MMM M
a. Connect the pocket tester (Ω × 1k) to the
throttle position sensor terminals as shown.
• Positive tester probe →
blue/green "1"
• Negative tester probe →
black/brown "2"
b. Measure the throttle position sensor maxi-
LLL
mum resistance.
L LLL L LLL L
3. Install:
• Throttle position sensor
TIP
When installing the throttle position sensor, ad-
just its angle properly. Refer to "ADJUSTING
THE THROTTLE POSITION SENSOR" on page
7-15.
8-145
Resistance
1.2–2.8 kΩ
M MMM M M MMM M M MMM M
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
2
B B/Br W L/G
L LLL L L LLL L L LLL L
M MMM M MMM
1
L LLL L LLL