HYOSUNG RX 125 Service Manual page 156

7-5 SERVICING INFORMATION
BATTERY
Complaint
"Sulfation"acidic
white powdery
substance or spots
on surfaces of
cell plates.
Battery runs down
quickly.
Reversed battery
polarity.
Battery "sulfation"
Battery discharges
too rapidly.
Symptom and possible causes
1. Not enough electrolyte.
2. Battery case is cracked.
3. Battery has been left in a run-down condition for a long
time.
4. Contaminated electrolyte. (Foreign matter has enters the
battery and become mixed with the electrolyte.)
1. The charging method is not correct.
2. Cell plates have lost much of their active material as a result
of over-charging.
3. A short-circuit condition exists within the battery due to
excessive accumulation of sediments caused by the high
electrolyte specific gravity.
4. Electrolyte specific gravity is too low.
5. Contaminated electrolyte.
6. Battery is too old.
The battery has been connected the wrong way round in the
system, so that it is being charged in the reverse direction.
1. Charging rate too low or too high. (When not in use, batteries
should be recharged at least once a month to avoid sulfa-
tion.)
2. Battery electrolyte excessive or insufficient, or its specific
gravity too high or too low.
3. The battery left unused for too long in cold climate.
1. Dirty container top and sides.
2. Impurities in the electrolyte or electrolyte specific gravity is
too high.
Remedy
Add distilled water, if the battery
has not been damaged and
"sulfation" has not advanced
too far, and recharge.
Replace the battery.
Replace the battery or recharge.
If "sulfation" has not advanced
far, try to restore the battery by
replacing the electrolyte,
recharing it fully with the battery
detached from the motorcycle
and then adjusting electrolyte
specific gravity.
Check the generator, regula-
tor/rectifier and circuit con-
nections, and make neces-
sary adjustments to obtain
specified charging operation.
Replace the battery, and
correct the charging system.
Replace the battery.
Recharge the battery fully
and adjust electrolyte spe-
cific gravity.
Replace the electrolyte,
recharge the battery and
then adjust specific gravity.
Replace the battery.
Replace the battery and be
sure to connect the battery
properly.
Replace the battery.
Keep the electrolyte up to
the prescribed level, or
adjust the specific gravity
by consulting the battery
maker' s directions.
R e p l a c e t h e b a t t e r y , i f
badly sulfated.
Clean.
Change the electrolyte by
c o n s u l t i n g t h e b a t t e r y
maker' s directions.