Checking The Fuel Injectors - Yamaha 2012 TMAX XP500A Service Manual

• Never subject the intake air temperature
sensor to strong shocks. If the intake air
temperature sensor is dropped, replace it.
2. Check:
• Intake air temperature sensor resistance
Out of specification → Replace.
Intake air temperature sensor
resistance
5.4–6.6 kΩ at 0 °C (32 °F)
290–390 Ω at 80 °C (176 °F)
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a. Connect the pocket tester (Ω × 1k/ × 100)
to the intake air temperature sensor termi-
nal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
b. Immerse the intake air temperature sensor
"1" in a container filled with water "2".
TIP
Make sure that the intake air temperature sen-
sor terminals do not get wet.
c. Place a thermometer "3" in the water.
d. Heat the water or let it cool down to the
specified temperatures.
e. Measure the intake air temperature sensor
resistance.
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3. Install:
• Intake air temperature sensor
Intake air temperature sensor
bolt
2.5 Nm (0.25 m·kgf, 1.8 ft·lbf)
ELECTRICAL COMPONENTS
EAS59C1801

CHECKING THE FUEL INJECTORS

1. Check:
• Fuel injector resistance
Out of specification → Replace the fuel
injector.
Fuel injector resistance
12.0 Ω
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a. Disconnect the fuel injector coupler from
wire harness.
b. Connect the pocket tester (Ω × 1) to the
fuel injector coupler.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
Injector terminal "1"
• Negative tester probe →
Injector terminal "2"
c. Measure the fuel injector resistance.
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