3 - 49
CHK
ADJ
CHECKING AND CHARGING THE BATTERY
NOTE:
_
Since MF batteries are sealed, it is not possi-
ble to check the charge state of the battery by
measuring the specific gravity of the electro-
lyte. Therefore, the charge of the battery has to
be checked by measuring the voltage at the
battery terminals.
1. Remove:
• upper rear cover
Refer to “PASSENGER SEAT AND SIDE
COVERS”.
2. Disconnect:
• battery leads
(from the battery terminals)
CAUTION:
_
First, disconnect the negative battery lead
1
, and then the positive battery lead
2
.
3. Remove:
• battery
4. Check:
• battery charge
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a. Connect a pocket tester to the battery termi-
nals.
NOTE:
_
• The charge state of an MF battery can be
checked by measuring its open-circuit volt-
age (i.e., the voltage when the positive termi-
nal is disconnected).
• No charging is necessary when the open-cir-
cuit voltage equals or exceeds 12.8 V.
b. Check the charge of the battery, as shown
in the charts and the following example.
Example
c. Open-circuit voltage = 12.0 V
d. Charging time = 6.5 hours
e. Charge of the battery = 20 ~ 30%
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Positive tester probe
→
positive battery terminal
Negative tester probe
→
negative battery terminal
2
1
Relationship between the open-circuit voltage
and the charging time at 20 °C (68 °F)
Ope
n
-circuit v
o
lta
ge (V)
Charging time (hours)
These values vary with the temperature, the condition of
the battery plates, and the electrolyte level.
Summary of Contents for 2004 YP400
Page 1: ...2004 YP400 S 5RU1 AE1 SERVICE MANUAL ...
Page 2: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ...GEN INFO ...
Page 28: ...SPEC 2 ...
Page 30: ...SPEC ...
Page 77: ...CHK ADJ 3 ...
Page 137: ......
Page 138: ...CHAS 4 ...
Page 210: ......
Page 211: ...ENG 5 ...
Page 286: ...COOL 6 ...
Page 288: ...COOL ...
Page 299: ...FI 7 ...
Page 301: ...FI ...
Page 342: ...ELEC 8 ...
Page 378: ...8 34 ELEC LIGHTING SYSTEM ...
Page 404: ......
Page 405: ...TRBL SHTG 9 ...
Page 415: ......
Page 416: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...