Generic Race 50, Service Manual, Page: 74 / 209

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are disassembled to the main fuse.
Start the engine and measure the clamping voltage and current when the rotation speed gradually increases.
Clamping voltage/rotation speed
：14-15V （2500rpm）
If the clamping voltage exceeds the specified value range,
inspect the voltage regulator.
Inspect the clamping voltage of the lighting system.
*Attention
Set the avometer at the alternating voltage position.
Clamping voltage
：13.1±0.5V/2500rpm
If the clamping voltage exceeds the specified value range, inspect the voltage and current regulator.
1.5
Voltage and current regulator
1.5.1 Inspect the main wire circuit
Disassemble the 4P plug of the voltage and current regulator.
Inspect the conduction between main wire terminals with the
following methods.
Item
（
wire color
）
Judging method
between the battery
（
red
）
and
body ground
there being battery
voltage
between the ground wire
（
black
）
and body ground
there being wire
between the charge coil
（
white
）
and body ground
there being
resistance in
alternator coil
After checking that the main
wiring end between illuminating
line (green/red) and body ground
(resistor plug; plug of automatic
side starter; remove lighting
switchboard and check in OFF
position) is completely normal.
there being
resistance in
alternator coil
White
（
A
）
Green/re
d
（
L
）
Red
（
B
）
Black
（
E
）
Multiteste
r
Multitester
+
_
Unit
：
M Ω
White
（
A
）
0 6.5 19~21
Green/red 1~10 24~25 19~23