Yamaha FZ09E Service Manual page 438

Rectifier/regulator input voltage
above 14 Vat 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
• 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"
1 2 3
\
1---1~
c. Start the engine and let it run at approximate-
ly 5000 r/min.
d. Measure the rectifier/regulator input voltage.
••••••••••••••••••••••••••••••••
2. Check:
• Rectifier/regulator output voltage
Out of specification
4
Replace the rectifi-
er/regulator.
Regulated voltage (DC)
14.3- 14.7
v
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a. Set the engine tachometer to the ignition coil
of cylinder #1.
b. Connect the pocket tester (DC 20 V) to the
battery as shown.
ELECTRICAL COMPONENTS
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
4
positive battery terminal "1"
• Negative tester probe
4
negative battery terminal "2"
s,
'\*C
c. Start the engine and let it run at approximate-
ly 5000 r/min.
d. Measure the charging voltage.
.........
CHECKING THE HORN
1. Check:
• Hom resistance
Ou1 of specification
4
Replace.
Horn
Coil resistance
1.01- 1.11
n
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a. Disconnect the horn leads from the horn ter-
minals.
b. Connect the digital circuit tester to the horn
terminals .
Digital circuit tester
90890-03174
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe
Horn terminal "1"
• Negative tester probe
Horn terminal "2"
8-103