Yamaha FZ09E 2014 Service Manual page 441

1
c. Set the main switch to "ON".
d. Elevate the rear wheel and slowly rotate it.
e. Measure the voltage. With each full rotation
of the rear wheel, the voltage reading should
cycle from 0.6 V to 4.8 V to 0.6 V to 4.8 V.
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EAS28250
CHECKING THE RADIATOR FAN MOTORS
1. Check:
• Radiator fan motor
Faulty/rough movement  Replace.
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a. Disconnect the radiator fan motor coupler
from the wire harness.
b. Connect the battery (DC 12 V) as shown.
• Positive tester probe
blue "1"
• Negative tester probe
black "2"
c. Measure the radiator fan motor movement.
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EAS28261
CHECKING THE COOLANT TEMPERATURE
SENSOR
1. Remove:
• Coolant temperature sensor
Refer to "CYLINDER HEAD" on page 5-19.
ELECTRICAL COMPONENTS
EWA14130
WARNING
• Handle the coolant temperature sensor
with special care.
• Never subject the coolant temperature sen-
sor to strong shocks. If the coolant temper-
ature sensor is dropped, replace it.
2. Check:
• Coolant temperature sensor resistance
Out of specification  Replace.
Coolant temperature sensor re-
sistance
2510–2780 @20 C (68 F)
210–221 @100 C (212 F)
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a. Connect the pocket tester (  1 k) to the
coolant temperature sensor 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.
d. Heat the coolant or let it cool down to the
specified temperatures.
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