Yamaha F40BMHD Service Manual page 490

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ELEC
CHARGING SYSTEM (WHD, ED, ET)
R
R
B
Y
Y
CHECKING THE FUSES
Refer to "CHECKING THE FUSES" on
page 8-22.
CHECKING THE BATTERY
Refer to "CHECKING THE BATTERY" on
page 3-21.
CHCKING THE RECTIFIER/
REGULATOR OUTPUT PEAK VOLTAGE
Measure:
Rectifier/regulator output peak volt-
age
Below specification → Replace the
rectifier/regulator.
Output peak voltage
Cranking
r/min.
Opened Closed
D.C. V
8
NOTE:
Before measuring rectifier/regulator peak
voltage, make sure that no abnormality is
observed on the lighting coil.
Peak voltage adaptor
YU-39991/90890-03169
CHECKING THE LIGHTING COIL
OUTPUT PEAK VOLTAGE
Measure:
Lighting coil output peak voltage
Below specification → Replace the
lighting coil.
Output peak voltage
Cranking
r/min.
Opened Closed
D.C. V
8
Peak voltage adaptor
YU-39991/90890-03169
8-30
R-B
1,500
3,500
8
12.5
12.5
Y -Y
1,500
3,500
8
25
59
E

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