Checking The Intake Solenoid - Yamaha WR250R Service Manual

sensor to strong shocks. If the intake air
temperature sensor is dropped, replace it.
2. Check:
Intake air temperature sensor resistance
G
Out of specification → Replace.
Intake air temperature sensor re-
sistance
2.21–2.69 kΩ 20°C
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a. Connect the pocket tester (Ω × 1k) to the in-
take air temperature sensor terminal as
shown.
Digital circuit tester
90890–03174
Model 88 Multimeter with ta-
chometer
YU-A1927
Positive tester probe
Brown/White "1"
Negative tester probe
Black/Blue "2"
1 2
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EAS32D1013

CHECKING THE INTAKE SOLENOID

1. Check:
Intake solenoid resistance
G
Out of specification → Replace.
Intake solenoid resistance
42–48Ω 20°C
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Disconnect the intake solenoid coupler from
the wire harness.
b. Connect the pocket tester (Ω × 10) to the in-
take solenoid terminal as shown.
ELECTRICAL COMPONENTS
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Tester positive lead
Red/White "1"
Tester negative lead
Brown/Black "2"
2
c. Measure the intake solenoid resistance.
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