Yamaha RS90GTZ Service Manual page 81

Charging method using a variable voltage charger
Charger
YES
Adjust the voltage so that the
current is at the standard
charging level.
Set the time according to the
charging time suitable for the
open-circuit voltage.
Refer to "BATTERY INSPEC-
TION".
If charging requires more than 5 hours, it is advisable to check the
charging current after a lapse of 5 hours. If there is any change in the
amperage, readjust the voltage to obtain the standard charging cur-
rent.
Measure the battery open-circuit voltage after leaving the battery un-
used for more than 30 minutes.
12.8 V or more --- Charging is complete.
12.7 V or less --- Recharging is required.
Under 12.0 V --- Replace the battery.
BATTERY INSPECTION
AMP meter
Measure the open-circuit
voltage prior to charging.
Connect a charged and
AMP meter to the battery
and start charging.
Make sure that the cur-
rent is higher than the
standard charging current
written on the battery.
YES
By turning the charging volt-
age adjust dial, set the charg-
ing voltage at 20 ~ 24 V.
Monitor the amperage for 3 ~ 5
minutes to check if the stand-
ard charging
reached.
If the current does not
exceed the standard charg-
ing current after 5 minutes,
replace the battery.
2-58
INSP
ADJ
TIP
Voltage should be measured
30 minutes after the snowmo-
bile is stopped.
TIP
Set the charging voltage at 16
~ 17 V. (If the setting is lower,
charging will be insufficient. If
too high, the battery will be
overcharged.)
NO
current is
NO