manual ON position. Return the switch to the automatic position when
nishedemptyingthebilge.Leavingtheswitchinmanualmodecanre
-
sult in damage to the pump and may not be covered by warranty!
Blower Switch
(All Models)
A two-position switch activates the engine
box ventilation blower. Push the top half of
the switch to turn the blower ON.
Note: The blower must operate for
a minimum of four (4) minutes before
starting the engine at any time. The
blower must also be operated during idle and slow-speed run-
ning, but is not necessary during cruising speed.
To prevent a possible explosion, operate the blower for
at least four (4) minutes before starting the engine and
always when at idle or slow-running speed. Explosive
gasoline and/or battery fumes may be present in the
engine compartment. Failure to operate the blower as
instructed may cause improper ventilation of the boat
engine and bilge areas, and fuel vapors can accumulate
in this area, causing a fire or explosion which may result
in death or serious injury!
Circuit Breakers
(All Models)
All major boat circuits are pro-
tected from shorting and overload
by re-settable circuit breakers. If a
problem develops with one of the
following circuits, switch OFF the
circuit and wait for approximately
one (1) minute. Then fully push
the appropriate breaker button
and switch ON the circuit. If the
circuit continues to trip, there is a
problem somewhere that must be
attended to immediately. See your
authorized MasterCraft service department to resolve this matter.
The location of the main circuit breaker board is under the dash
panel. In some models, there is an additional breaker panel to assist
with the accessory load, and where equipped is located near the bat-
terybox.Theremayalsobeawaterprooffuseforthestereoamplier,
where equipped. If the boat’s accessories are malfunctioning, check
and then re-set breakers as necessary.
The engines are also equipped with breaker systems. The main
35A circuit breaker protects the engine electrical system and com-
ponents from overload. If the engine will not turn over with the bat-
tery switch in the ON position, locate the red breaker re-set button
(labeled “35”) in the engine. There will be an audible click. Try again
to start the engine. If the breaker trips again, the engine requires at-
tention. Immediately take your boat to your authorized MasterCraft
service department.
In addition to the 35A circuit breaker, the engines are equipped
with additional component overload protection, including a 15A ATO
fuse for the fuel pump, a 15A ATO fuse for the injectors and a 15A
ATO fuse for the ECM unit.
If you suspect that any of these fuses may not be operating as
designed, you should take your boat to your authorized MasterCraft
service department for inspection and repair.
If during maintenance or inspection it becomes necessary to
remove or re-position any of the engine’s wiring or wire harness(es)
verify that the wiring has been returned to its original position and
that all harnesses are routed correctly before attempting to use the
boat again. If a wiring clip or retainer breaks, replace it immediately.
Wiringisspecicallyroutedtoeliminateproblemsrelatedtoengine
heat and spray or immersion in liquids. Electrical problems may re
-
sult if wiring is moved from its original position!
Courtesy Lights Switch
(All Models)
This switch is a two-position switch that
activates the courtesy lights within the boat.
Turning the switch upwards will turn the
lights ON, and turning it downwards will turn the lights OFF.
Note that on boats equipped with the optional underwater lights
(transom below the water line), this same switch operates those lights.
Also note that the underwater lights should never be operated
unless the boat is in the water. Even though these are L.E.D.
lights, they generate some heat and require the cooling effect
of the water to avoid premature burn-out of the bulb.
Cruise Control Gauge
(Where Equipped)
Boats equipped with cruise control sys-
tems come with short manuals that describe
how to operate and maintain the cruise
control system. Refer to the appropriate
manual prior to operation of the system.
Boats featuring the “simple” cruise system
function the same as an automobile with an ON/OFF switch and +/-
to increase or decrease speed. For boats equipped with dual engines,
see also the Engine Synchronizing Switch instructions of this section.
The engine synchronizing switch must be ON for the cruise to work
on dual-engine boats. Also review the operating instructions from the
cruise control provider.
Display Selector Switch
(ProStar 190, ProStar 197, X-7)
On the models equipped with the Multi-Function gauge, this
switch allows the operator to toggle between functions.
Dual Battery Operation Switch
(All MariStar Models and Similar X Series, X-Star,
CSX 220, CSX 265)
MariStar and X-Star: For normal operation the battery
switch should be placed in the ON position. This al-
lows the engine and all accessories to receive power.
The engine will recharge both batteries with the switch
ON. For transportation and storage, the battery switch
should be placed in the OFF position to allow both bat-
teries to be isolated from all circuits.
Note: The switch knob may be removed when it is in the
OFF position. This is a security feature.
mastercraft 2010 ow n e r ’s m anual • page 5-3
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