Yamaha XF50W Service Manual page 106

CHECKING AND CHARGING THE BATTERY
NOTE:
Since MF batteries are sealed, it is not possible
to check the charge state of the battery by mea-
suring the specific gravity of the electrolyte.
Therefore, the charge of the battery has to be
checked by measuring the voltage at the bat-
tery terminals.
1. Remove:
8battery cover
Refer to"SIDE COVERS AND TAIL/
BRAKE LIGHT".
2. Disconnect:
8battery leads
(from the battery terminals)
cC
First, disconnect the negative battery lead
1 , and then the positive battery lead 2 .
3. Remove:
8battery
4. Check:
8battery charge
• • • • • • • • • • • • • • • • • • • • • • •
a. Connect a digital circuit tester to the battery
terminals.
Digital circuit tester
90890-03174
Positive tester probe
Negative tester probe
NOTE:
8 The charge state of an MF battery can be
checked by measuring its open-circuit volt-
age (i.e., the voltage when the positive ter-
minal is disconnected).
8 No charging is necessary when the open-
circuit voltage equals or exceeds 12.8 V.
3-51
-» positive battery terminal
-» negative battery terminal