Owner`s manual
Ballast Empty/Fill Switches
(On Ballast-equipped Models Only)
On boat models equipped with a ballast system, a separate three-position switch will allow for the filling
or emptying of the ballast tanks and/or bags. Be aware that the engine must operate at 1500 RPM dur-
ing the fill and empty processes. Check engine specifications for related engine idle speed, which may be
too low for the empty/fill operation to be properly accomplished; it is likely that the boat will need to be in
motion during the filling and emptying of the ballast system. Failure to increase engine RPM to the required
level may result in malfunction or permanent damage to the ballast pumps that force the water through the
system. Such damage is not covered under your warranty. e ballast controls vary in location by model, and
the operator should determine exact location prior to use. e three-position switches are clearly marked;
FILL, OFF (in center), and EMPTY.
An LED light is in the tip of each switch. At the conclusion of the FILL process, the light will blink six
times in succession, pause for two-to-three seconds, and then blink an additional six times. is signals that
the FILL process is complete. If the system senses any potential problems, the LED lights may blink from one
to five times (each signifies individual issues). If this occurs, see an authorized MasterCraft dealer for analysis
and correction. Do not attempt to correct the issue on your own or continue to FILL the ballast as it may
result in damage to the system.
Manual and Automatic Bilge Pump Switch
(All Models)
e bilge pumps on all V-drive models will be in the automatic mode when the ignition key is turned ON.
Some models may have two (2) switches, one for the forward bilge and one for the aft. In these instances, the
switches will be marked. e manual and automatic bilge discharge system is never completely off. When in the
automatic (default) position, a sensor alerts the system to discharge water from the bilge area. Boat operators
are advised to leave the switch in the automatic position, unless there appears to be excess water in the bilge.
In that event, the bilge pump can be manually activated by turning the bilge pump switch to the manual ON
position. Return the switch to the automatic position when finished emptying the bilge. Leaving the switch in
manual mode can result 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: e blower must operate for a minimum of four (4) minutes before starting the engine at any
time. e blower must also be operated during idle and slow-speed running, 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 serious injury or death!
Circuit Breakers
(All Models)
All major boat circuits are protected 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. en 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 autho-
rized MasterCraft service department to resolve this matter.
e 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
battery box. ere may also be a waterproof fuse for the stereo amplifier, where equipped. If the boat’s
accessories are malfunctioning, check and then re-set breakers as necessary.
e engines are also equipped with breaker systems. e main 35A circuit breaker protects the
engine electrical system and components 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. ere
will be an audible click. Try again to start the engine. If the breaker trips again, the engine requires attention.
Immediately take your boat to your authorized MasterCraft service department.
2011 Owners Manual...Instrument Gauges and Switches...Page 5-3










