Generic TR 125 Service Manual page 18

Unhealthy charging (storage battery over discharge or
Fault Diagnosis
Battery voltage
no rise
Normal
Have voltage
Normal
Charging bad charging
Voltage
higher than
normal
Normal
Adjustment Check
Measurement on
both ends of the
battery voltage
started the engine
Battery voltage up
to normal; restore
the original voltage
after flameout
Check the voltage regulator
plug is loose
Abnormal
Check voltage regulator by the
multi-purpose socket red line electric
meter of anode and connected body in
No voltage
Ac generators coil impedance
values determined
Abnormal
Start the engine, the voltage regulator
socket red line connects with electric
meter by three anode and ed body in
electricity
Normal
voltage
Check whether the voltage regulator
wiring contact undesirable
Loose contact
The voltage regulator
monomer test impedance
over charge)
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Fault Cause
Battery life has come
Unhealthy storage battery
Plug contact undesirable
The red lines open circuit wiring
Voltage adjuster
Wiring white line disconnected
Unhealthy coil
Connector contact undesirable
Wiring white line disconnected
Unhealthy storage battery
Joint contact undesirable wiring
grounding is poor
The voltage regulator is poor