Malibu Boats 21 vRide, Owner'S Manual

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Ventilation
The ventilation is used to remove potentially hazardous accumulation of explosive vapors
from the bilge areas of your boat’s hull and engine compartment. Therefore, proper
ventilation is essential to the safety of the boat and persons in or around the boat structure.
Your boat is equipped with a ventilation system that will ensure complete removal of these
dangerous fumes. However, it is your responsibility as the operator of the boat to ensure
these systems are working efficiently. The boat’s primary source for expelling fumes from
the boat is the blowers located in the bottom of the bilge and at the transom venting points.
Your boat is also equipped with a natural air-intake that forces air through a venting system
on the deck of your boat, and channels air from the bilge to the transom vent.
Cooling
Most boats will be cooled with a continuous intake of lake water circulating it around
engine components.
Closed Cooling System
If your boat is equipped with an optional closed cooling system, you will need to maintain
correct fluid levels.
• Open engine compartment and remove reservoir cap.
• Ensure coolant is to the top of the reservoir filler neck.
• Use Sierra Anti-Freeze.
Notice:
To ensure we are always mindful of our environment; it is an
Indmar and Malibu Boat recommendation to use Sierra Brand
antifreeze because of its propylene glycol formulation. SIERRA
Antifreeze is less toxic and safer than ethylene glycol coolants
to children, pets and wildlife, in case of spills, leaks, boil-over
or careless disposal.
The engine must be cool when checking the coolant level.
Hot coolant and steam under pressure may cause injury.
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