HYOSUNG GF125 Service Manual page 163

7-5 SERVICING INFORMA TION
BATTERY
Complaint
"Sulfation"acidic
1. Not enough electrolyte.
white powdery
substance or spots
on surfaces of cell
2. Battery case is cracked.
plates
3. Battery has been left in a run-down condition for a long time.
4. Contaminated electrolyte(Foreign matter has enters the battery and
1. The charging method is not correct.
Battery runs down
quickly.
2. Cell plates have lost much of their active material
3. A short-circuit condition exists within the battery due to excessive
4. Electrolyte S. G. is too low.
5. Contaminated electrolyte.
6. Battery is too old.
The battery has been connected the wrong way round in the system,
Reversed battery
polarity.
so that it is being charged in the reverse direction.
1. charging rate too low or too high.
Battery "sulfation"
2. Battery electrolyte excessive or insufficient, or its specific
3. The battery left usused for too long in cold climate.
1. Dirty container top and sides.
Battery discharges
too rapidly
2. Impurities in the electrolyte or electrolyte S.G. is too high.
Symptom and possible causes
become mixed with the electrolyte.
as result of over-charging.
accumulation of sediments caused by the high electrolyte S.G.
(When not in use, batteries should be recharged at least once
a month to avoid sulfation.)
griavity too high or too low.
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.
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 S.G.
Check the generator, regulator/rectifier
and circuit connections, and make
necessary adjustment to obtain
specified charging operation.
Replace the battery, and correct the
charging system.
Replace the battery.
Recharge the battery fully and adjust
electrolyte S.G.
Replace the electrolyte, recharge the
battery and then adjust S.G.
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 S.G.
by consulting the battery maker' s
directions.
Replace the battery, if badly sulfated.
Clean.
Charge the electrolyte by consulting
the battery maker' s directions.