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Honda CB400F 1989 Service Manual page 144

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CHARGING
SYSTEM/ALTERNATOR
Disconnect the
starter relay
switch
connector
and remove
the
main fuse
(30
A).
Reconnect
the
connector onto
the relay
switch.
(1)
MAIN
FUSE
.(2)
CONNECTOR
»
(3)
STARTER
RELAY
SWITCH
Connect the
ammeter
as
shown.
CAUTION
(4)
AMMETER
• Be careful
nut tu
short
any
tester
probes.
Although the
current
could be measured when the am¬
meter
is connected between the
battery positive termi
nal and the positive
cable,
a sudden surge of
current to
the
starter motor
could damage the
ammeter.
Always
turn
the ignition off when conducting the
test.
Disconnecting the
ammeter
or wires when
current
is
flowing
may damage
the
ammeter.
)
*>A
I
Start
the engine and increase the engine speed gradually.
REGULATED
VOLTAGE: 14.0-16.0
V/5,000 rpm
CHARGING CURRENT: 0-8 A/5,000 rpm
ft
REGULATOR/RECTIFIER
(1)
REGULATOR/RECTIFIER
/
WIRE HARNESS INSPECTION
x?'
.
>
Remove the
rear fairing (page
2-2).
Disconnect the
regulator/rectifier
connector
and measure the
following between
connector
terminals of the
wire harness
side.
/'
o
Item
Terminals
Specification
Battery voltage
should resister.
Battery
charging line
Red/White
(+)
and
ground
(-)
I
Continuity
exist.
Green and ground
Ground line
Charging coil
Yellow and Yellow
0.1-0.5
Q
(20°C/68°F)
line
I
ft

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Cb-1 1989