Carbon Monoxide Risk - Mercury HP 500 EFI Bravo XR/XZ/III User Manual

GENERAL INFORMATION

Carbon Monoxide Risk

Avoid the combination of a running engine and poor ventila-
tion. Prolonged exposure to carbon monoxide in sufficient
concentration can lead to unconsciousness, brain damage, or
death.
Carbon monoxide is a deadly gas that is odorless, colorless and
tasteless and is present in the exhaust fumes of all internal
combustion engines.
Early symptoms of carbon monoxide poisoning which should not be
confused with seasickness or intoxication, include headache, dizzi-
ness, drowsiness, and nausea.
INSUFFICIENT FRESH AIR FLOW
Under certain conditions, enclosed or canvas enclosed cabins or
cockpits with insufficient ventilation may draw in carbon monoxide.
Install one or more carbon monoxide detectors in your boat.
Although rare, on a very calm day, swimmers and passengers in an
open stationary boat with a running engine, or near a running engine
may be exposed to a hazardous level of carbon monoxide.
Insufficient Air Flow Could Occur If:
While boat is stationary
1 Boat moored in a confined space with the engine running.
2 Boat is moored close to another boat with its engine running.
While boat is moving
3 Running the boat with the trim angle of the bow too high.
4 Running the boat with no forward hatches open (station wagon
effect).
SUFFICIENT FRESH AIR FLOW
5 Example of desired air flow through the boat.
Ventilate passenger area, open side curtains, or forward hatches to
remove carbon monoxide fumes.
500 EFI Bravo
WARNING
23