Checking The Purge Cut Valve Solenoid; Checking The Wheel Switch - Yamaha MT-09 2021 Service Manual

Resistance
12.0 Ω
a. Disconnect the fuel injector coupler from
the fuel injector.
b. Connect the digital circuit tester (Ω) to the
fuel injector coupler as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe →
Injector terminal "1"
• Negative tester probe →
Injector terminal "2"
c. Measure the fuel injector resistance.
EAS32604
CHECKING THE PURGE CUT VALVE
SOLENOID
1. Check:
• Purge cut valve solenoid resistance
Out of specification → Replace.
Solenoid resistance
22–26 Ω
a. Disconnect the purge cut valve solenoid
coupler from the wire harness.
b. Connect the digital circuit tester to the
purge cut valve solenoid terminals as
shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
ELECTRICAL COMPONENTS
• Positive tester probe →
Purge cut valve solenoid terminal "1"
• Negative tester probe →
Purge cut valve solenoid terminal "2"
2
c. Measure the purge cut valve solenoid resis-
tance.
EAS31673

CHECKING THE WHEEL SWITCH

1. Check:
• Wheel switch "1" output voltage
Out of specification → Replace the right han-
dlebar switch.
a. Connect the digital circuit tester (DC V) to
the handlebar switch coupler (right) as
shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe
white/green "2"
• Negative tester probe
black/white "3"
b. Turn the main switch to "ON".
c. When turning the wheel switch in direction
"a" and "b", check that the output voltage is
within the specified values.
Output voltage reading cycle
More than 5 V to less than 0.5 V
then back to more than 5 V to
less than 0.5 V
d. Connect the digital circuit tester (DC V) to
the handlebar switch coupler (right) as
shown.
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R/W Y/R