95%
1
2
3
4
5
6
7
8
9
10
11
8-4
G19E
MAINTENANCE
●
Before charging:
only add distilled
water if fluid is below the top of the
plates, and then add just enough to
cover plates.
●
After charging:
check that the fluid
level is approximately 1/4 to 1/2
inch above the plates and 1/4 to 3/8
inch below the level indicator. If the
fluid level is low, carefully add dis-
tilled water. Adding distilled water
after
charging prevents boil over.
å
Battery cap
∫
Plates
ç
Maximum fluid level
∂
Minimum fluid level
Normal tap water contains miner-
als which are harmful to a battery;
therefore, refill only with distilled
water.
3. Using a hydrometer, check the
specific gravity of the battery fluid
in each cell against the readings
on the chart below. Consult a
Yamaha dealer if any low readings
are found, or if readings vary more
than one point between cells.
Temperature
Satisfactory Uncorrected
˚F
˚C
Hydrometer Reading
120
48.9
1.244
110
43.3
1.248
100
37.8
1.252
90
32.2
1.256
80
26.7
1.260
70
21.1
1.264
60
15.6
1.268
50
10.0
1.272
40
4.4
1.276
30
-1.1
1.280
CAUTION
Y-47
Y-829
D
A
C
B
G19e O_M 9/19/00 3:40 PM Page 25
