Yamaha FZ1-N 2007 Service Manual page 497

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
EAS5D01030
CHECKING THE STARTER MOTOR OPERA-
TION
1. Check:
• Starter motor operation
Does not operate → Perform the electric
starting system troubleshooting, starting
with step5.
Refer to "TROUBLESHOOTING" on page
8-9.
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a. Connect the positive battery terminal "1"
and starter motor lead "2" with a jumper
lead "3".
EWA13810
WARNING
• A wire that is used as a jumper lead must
have at least the same capacity of the bat-
tery, 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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2. Check:
• Starter coil resistance
Out of specification → Replace the starter
coil.
EAS28150
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.
Stator coil resistance
0.14–0.18 Ω at 20°C (68°F)
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email: info@motomatrix.co.uk
ELECTRICAL COMPONENTS
a. Connect the pocket tester (Ω × 1) to the
stator coil coupler as shown.
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"
b. Measure the stator coil resistance.
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EAS28170
CHECKING THE RECTIFIER/REGULATOR
1. Check:
• Charging voltage
Out of specification → Replace the rectifier/
regulator.
Charging voltage
14 V at 5000 r/min
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a. Set the engine tachometer to the ignition
coil of cylinder #1.
b. Connect the pocket tester (AC 20 V) to the
rectifier/regulator coupler as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
8-142