Yamaha MBK YQ100 Service Manual page 74

CHECKING THE BATTERY
UPPER
+
LOWER
• Make sure the battery charger lead clips
are in full contact with the battery terminal
and that they are not shorted. A corroded
battery charger lead clip may generate heat
in the contact area and a weak clip spring
may cause sparks.
• If the battery becomes hot to the touch at
any time during the charging process,
disconnect the battery charger and let the
battery cool before reconnecting it. Hot
batteries can explode!
NOTE:
Replace the battery whenever:
• battery voltage does not rise to specification
or bubbles fail to rise during charging,
• sulphation of one or more battery cells occurs
(as indicated by the battery plates turning
white or material accumulating in the bottom
of the battery cell),
• specific gravity readings after a long, slow
charge indicate that one battery cell's charge
is lower than the rest,
• warpage or buckling of the battery plates or
insulators is evident.
7.Install:
• battery
8.Check:
• battery terminals
Dirt → Clean with a wire brush.
Loose connection → Connect properly.
9.Connect:
• battery leads
(to the battery terminals)
CAUTION:
First, connect the positive battery lead
and then the negative battery lead
3-31
INSP
REG
,
.