Generic Trigger X 50ccm Owner's Manual page 16

Improper charging (overdischarge or over charge of battery)
Troubleshooting
No increase of
battery voltage
Normal
With voltage No voltage
Normal Abnormal
Improper charging
Voltage
higher than
normal value
Normal
Measure the voltages
of the both ends of
battery,
engine
Battery voltage
rised to normal
value and restore its
original voltage
after killing engine
Inspect whether the voltage regulator
plug is slack
Abnormal
Check the voltage regulator socket,
the red line connects universal meter
and positive and negative line connect
the voltage of motorcycle
Measuring alternator coil resistance value
Start engine, the red line of voltage regulator
socket connects to avometer and positive and
negative line
motorcycle
Normal voltage
Inspect whether the connection of
voltage regulator wiring is correct
Slack and improper
connection
Voltage
impedance
Tune-up inspection
start the
connects the voltage
regulator unit test
- 15 -
Failure cause
Expired battery
Bad battery
Bad contact of plug
Open circuit of red line of wiring
Voltage regulator
Open circuit of white line of
wiring
Bad coil
Bad contact of joint
White line of
disconnected
Bad battery
of
Improper contact of joint and
imperfect earth of wiring
Bad voltage regulator
alternator