Yamaha Tracer MT09TRAH 2017 Service Manual page 542

tance
Out of specification  Replace the accelera-
tor position sensor.
Resistance
1.08–2.52 k
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a. Connect the digital circuit tester () to the ac-
celerator position sensor terminals as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe 
blue "1"
• Negative tester probe 
black/blue "2"
1
B
b. Measure the accelerator position sensor
maximum resistance.
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3. Install:
• Accelerator position sensor
TIP
When installing the accelerator position sensor,
adjust its angle properly. Refer to "ADJUSTING
THE ACCELERATOR POSITION SENSOR" on
page 7-13.
EAS30592
CHECKING THE THROTTLE SERVO MOTOR
1. Remove:
• Air filter case
Refer to "GENERAL CHASSIS (1)" on page
4-1.
2. Check:
• Throttle valve operation
Throttle valves do not fully close  Replace
the throttle bodies.
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a. Connect two C-size batteries to the throttle
2
L B/L W
ELECTRICAL COMPONENTS
servo motor terminals "1" as shown.
ECA17660
NOTICE
Do not use a 12 V battery to operate the throt-
tle servo motor.
TIP
Do not use old batteries to operate the throttle
servo motor.
A
B
A. Check that the throttle valves "2" open.
B. Check that the throttle valves "2" fully close.
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EAS30587
CHECKING THE AIR INDUCTION SYSTEM
SOLENOID
1. Check:
• Air induction system solenoid resistance
Out of specification  Replace.
Solenoid resistance
20–24 
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a. Remove the air induction system solenoid
coupler from the air induction system sole-
noid.
b. Connect the digital circuit tester () to the air
induction system solenoid terminal as shown.
8-171
2
1
1
3 V
2
1
1
3 V