Yamaha YJ125S Service Manual page 98

CHECKING AND CHARGING THE BATTERY
Charging method using a variable-current (voltage) charger
Charger
YES
NO
Adjust the voltage to obtain the
standard charging amperage.
Set the timer to the charging
time determined by the
opencircuit voltage.
Refer to "CHECKING AND
CHARGING THE BATTERY".
If the required charging time exceeds 5 hours, it is advisable to check
the charging amperage after 5 hours. If there is any change in the am-
perage, readjust the voltage to obtain the standard charging amperage.
Leave the battery unused for more than 30 minutes before measuring
its open-circuit voltage.
12.8 V ~ Charging is complete.
12.0 ~ 12.7 V ~ Recharging is required.
Under 12.0 V ~ Replace the battery.
Measure the open-circuit
Ammeter
voltage prior to charging.
Connect a charger and am-
meter to the battery and
start charging.
Is the amperage higher than
the standard charging am-
perage written on the bat-
tery?
Adjust the char ging voltage to
20 ~ 25V.
Monitor the amperage for 3 ~ 5
YES
minutes. Is the standard charg-
ing amperage exceeded?
If the amperage does not ex-
ceed the standard charging am-
perage after 5 minutes, replace
the battery.
3-50
CHK
ADJ
NOTE:
Leave the battery unused for more
than 30 minutes before measuring its
opencircuit voltage.
NOTE:
Set the charging voltage to 16-17 V.
(If the charging voltage is lower charg-
ing will be insufficient, if it is higher,
the battery will be over-charged.)
NO
NO