2023 OWNER’S MANUAL
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10
• Never sit, teak surf, or hang on the back deck or swim platform
while the engine is running. Teak surfing is NEVER a safe activity.
• Never allow person in the water to swim under the swim
platform or transom at any times.
• Operation of boats at mile-high (5,250 ft.) or higher altitudes
may affect CO production. Check with an authorized
MasterCraft dealer before operating at higher altitudes to
determine whether the engine may require additional tuning to
prevent excessive CO.
• Although CO can be present without the smell of exhaust fumes,
if you smell exhaust fumes, CO is also present. Take immediate
action to dissipate these fumes.
• Treat symptoms of seasickness as possible CO poisoning. Get
the person(s) into fresh air immediately. Seek medical attention.
• Install and maintain CO alarms inside your boat. Do not ignore
any alarm. Replace alarms as recommended by
the manufacturer.
• Follow Coast Guard safety checklists.
• Get a Vessel Safety Check. They are free! Your local U.S. Coast
Guard Auxiliary can provide details or check www.uscgaux.org
online to locate assistance.
HOW TO PROTECT YOURSELF
AND OTHERS
Follow these simple steps to help keep CO from poisoning you,
your passengers and others nearby:
• Know where and how CO may accumulate in and around your
boat. This is particularly important when starting or running
engines in boathouses, or near a sea wall. Boats that are
moored in close proximity are also potential problems as the
fumes from your boat or another boat can affect air drafts on
all boats. Back drafting sometimes called the “station wagon
effect” occurs when the fumes curl up over the swim platform
and transom and into the boat, especially when canvas or
other coverings trap the fumes. Even in open air, consider wind
direction, the boat’s speed and trim angles.
• Maintain fresh air circulation throughout the boat at all times.
CO concentration is greater when the engine is cold. Ensure
the boat is situated to take advantage of maximum dissipation
of fumes.
• If your boat is equipped with a generator, know where the
exhaust outlet(s) is located and keep everyone away from
the area.
• Ensure that appliance, air conditioning, heater, generator,
or other on-board function that emits fumes is routinely
and regularly provided with maintenance as described by
manufacturers. Failure to do so can result in the accumulation
of CO fumes.
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