Malibu Boats M235 2019, Owner'S Manual

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Always operate the blower for the required four (4) minutes prior
to starting the engine, ensuring the engine compartment is open. This
should also be done when idling or running at low speed. This allows
the disbursing of fumes that otherwise allowed to accumulate could
result in an explosion.
The blower is controlled from an ON-OFF switch on the 7” Malibu
Touch Command (MTC) screen. (See Dashes and Video Screens
section of this Owner’s Manual for more detail on how to operate
the system.)
The blower should come ON automatically when
the system is first powered up from the ON-OFF power button.
However, operators should always verify that the blower is ON and
operating rather than relying on the automatic ON.
Although the Malibu fuel system works very efficiently, there
will always be some gaseous by-product as a result of operating an
internal-combustion engine. These gases, along with the water used
to cool the engine (in addition to the closed cooling system) are routed
out of the boat by way of the exhaust manifolds on each side of the
engine to exhaust houses between the deck and hull, and it is expelled
out of the system at the transom. If your boat is a Response or TXi, as
part of the maintenance of the boat, pay attention to the exhaust flaps.
Some flaps and components of that exhaust system are composed
of high-grade rubber and synthetics. These may deteriorate over
time. Check to ensure that the flaps fit securely over the exhaust port
and that they will open with ease, which is what must occur when the
boat engine is running. After extended storage, also verify that birds
and vermin have not made their way past the flaps and created nests
inside the exhaust system.
Although much of the exhaust is disbursed into and through the
water, fumes still reach the swim platform and transom area of the
boat, including WakeView seating and the sun pads. Therefore, no
one should ever be on the swim platform, transom seating or sun
pads when the engine is operating.
Never allow anyone to be on
the swim platform, transom
seating or sun pads when the
engine is running. Carbon
monoxide fumes are colorless and odorless. Illness and
death can result from breathing fumes, even before a
person is aware of breathing them. See the
Safety section
of this Owner’s Manual for more information regarding
this critical matter.
Always allow the exhaust manifolds to cool before touching them.
(The manifolds are on the upper side of the engine on both sides.)
Engine operation will result in the manifolds becoming very hot, and
touching could result in burns to the skin.
Engines equipped with
catalyst exhaust manifolds
may produce an unusual
odor. This is typical of engines with a catalytic converter
exhaust system. If you are uncertain about any odor, do
not hesitate to contact an authorized Malibu dealer for
assistance in determining the cause and potential for
concern.
The boat is also equipped with a natural air-intake that forces air
through a ventilation system on the deck of the boat. This channels
air from the bilge to the transom vent.
With proper maintenance, which is the responsibility of the boat
owner and/or operator, the ventilation system works efficiently and
protects the people on-board from dangerous fumes. Follow the
maintenance requirements as indicated in the
Care and Maintenance
section of this Owner’s Manual.
The State of California has
determined that the engine
exhaust contains chemicals
that have been known by the State to cause birth defects,
cancer or other reproductive harm.
Never operate the boat if you or anyone on board suspects
that the exhaust or fuel system is not performing as designed.
Break-In Period—All Boats
Breaking in marine engines is a different process from land-
based vehicles. The first 10 hours of operation for your Malibu engine
is critical for long life and enjoyable operation. When done properly,
the break-in period will ensure peak performance.
The first hours of the boat operation have critical requirements
for engine break-in. Pay close attention to the screens and monitor
the readings. Pay particular attention to the oil pressure and engine
temperature information as these are the earliest warnings when
something is going wrong with the drivetrain. Alarms will sound if
serious problems are encountered.
Also, check carefully for leaks. The break-in period is the most-
likely time for leaks to appear, whether fuel, oil, water or exhaust.
Verify that fluid levels are at the required levels. Listen for abnormal
noises and pay attention to vibrations.
Any part of the operation that seems to be different from
expectations should be checked with your authorized Malibu dealer,
especially during this break-in period.
2019 Malibu Boats, LLC Owner’s Manual • Page 108
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