SANYANG INDUSTRY CO. XS125-K Service Manual page 11

1.GENERAL INFORMATION
E. POOR CHARGE (BATTERY OVER DISCHARGE OR OVER CHARGE)
symptom
battery voltage
can't rise
normal
hsa voltage
normal
poor charge (over charge)
voltage over
normal
normal
can't meet
specification
1-8
battery voltage rise to
normal value,after
engine stops, the voltage
return to original.
abnormal
no voltage
abnormal
voltage normal
poor contact
inspection adjustment
measure battery voltage.
and then start engine
check voltage regulator
rectifier coupler
check the voltage between
voltage red wire
and frame body(grounding)
with mult-meter(+).(-)
terminals.
measure the resistance of
AC generator coil
after engine starter, measure the
voltage between voltage regulaton
/rectifier red (+) wire and
green (-) wire connected with
frame body.
check voltage regulator/
rectifier coupler for poor
contact.
measure the resistance of
voltage adjuster unit
cause
reach battery life
faulty battery
coupler poor contact
red wire open
voltage adjuster
white wire open
coil faulty
connector.poor contact
AC generator white wire open
faulty battery
Coupler poor contact.
green wire poor
grounding
faulty voltage
regulator/rectifier