Yamaha BIG BEAR 250 YFM25BZ Owner's Manual page 118

1. Battery cover
3. Check the electrolyte level in the battery.
8
1. Battery
2. Maximum level mark
3. Minimum level mark
TIP
The electrolyte should be between the minimum
and maximum level marks.
4. If the electrolyte is at or below the minimum
level mark, add distilled water to raise it to the
maximum level mark. NOTICE: Use only dis-
tilled water, as tap water contains minerals
that are harmful to the battery.
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[ECB00591]