Bad Boy Ambush iS Owner's Manual page 86

CHECKING BATTERY
Battery electrolyte is an acid and is poisonous and corrosive.
Serious injury results from contact with the skin, eyes or clothing.
If the electrolyte fluid is below level line, refill battery with distilled water.
HIGH ALTITUDE ENGINE OPERATION
The FI system is installed in this engine.
The air/fuel ratio when driven at the high ground is corrected automatically by
this FI system.
The automatic correction is possible up to 3000m(9800ft).
WARNING
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