Yamaha 2014 MT-07 - Checking the Starter Motor Operation; Checking the Stator Coil; Checking the Rectifier;Regulator

ELECTRICAL COMPONENTS
8-136
c. Set the main switch to “ON”.
d. Turn the lean angle sensor to 65°.
e. Measure the lean angle sensor output volt-
age.
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EAS30562
CHECKING THE STARTER MOTOR
OPERATION
1. Check:
• Starter motor operation
Does not operate → Perform the electric
starting system troubleshooting, starting with
step 4.
Refer to “TROUBLESHOOTING” on page
8-10.
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a. Connect the positive battery terminal “1” and
starter motor lead “2” with a jumper lead “3”.
WARNING
EWA13810
• A wire that is used as a jumper lead must
have at least the same capacity of the bat-
tery lead, otherwise the jumper lead may
burn.
• This check is likely to produce sparks,
therefore, make sure no flammable gas or
fluid is in the vicinity.
b. Check the starter motor operation.
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EAS30566
CHECKING THE STATOR COIL
1. Disconnect:
• Stator coil coupler
(from the wire harness)
2. Check:
• Stator coil resistance
Out of specification → Replace the stator coil.
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a. Connect the digital circuit tester to the stator
coil coupler as shown.
b. Measure the stator coil resistance.
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EAS30680
CHECKING THE RECTIFIER/REGULATOR
1. Check:
• Charging voltage
Out of specification → Replace the rectifi-
er/regulator.
Stator coil resistance
0.128–0.192 Ω (W-W)
Digital circuit tester
90890-03174
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe
White “1”
• Negative tester probe
White “2”
• Positive tester probe
White “1”
• Negative tester probe
White “3”
• Positive tester probe
White “2”
• Negative tester probe
White “3”