Yamaha YZFR1W 2007, Service Manual

Page: 412 / 429

ELECTRICAL COMPONENTS
8-93
c. When turn the lean angle sensor to 65
°
.
d. Measure the lean angle sensor out put volt-
age.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS4C81020
CHECKING THE STARTER MOTOR OPERA-
TION
1. Check:
• Starter motor operation
Does not operate
→
Perform the electric
starting system troubleshooting, starting
with step 4.
Refer to "TROUBLESHOOTING" on page
8-9.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
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.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS28150
CHECKING THE STATOR COIL
1. Disconnect:
• Stator coil coupler
(from the rectifier/regulator)
2. Check:
• Stator coil resistance
Out of specification
→
Replace the stator
coil.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the pocket tester (
Ω ×
1) to the
stator coil coupler as shown.
b. Measure the stator coil resistance.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS28170
CHECKING THE RECTIFIER/REGULATOR
1. Check:
• Charging voltage
Out of specification
→
Replace the rectifier/
regulator.
Stator coil resistance
0.14–0.18
Ω
at 20
°
C (68
°
F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• 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”