Specifications

IGNITION SWITCH
Never leave the ignition switch in the RUN position without
the engine running; this will prevent the natural discharge of
the battery and result in damage to the starter solenoid.
Note that the STS is equipped with two ignitions, one for
each engine and that the engines operate independently of
each other.
SAFETY SWITCH
The emergency engine safety switch,
called the lanyard, is an ignition cut-off
switch designed to stop the engine in the
event of an operator being thrown from
position or moving too far from the helm.
The lanyard is equipped with a hook on
one end for attachment to your clothing or
PFD, and the opposite end has a slide that
fits over the switch. Be sure that the slide is
firmly attached to the switch before starting.
The switch is located near the throttle
control box. If the slide is left off or loose, the engine will crank
but will not start.
The safety switch lanyard must be attached to the
operator whenever the engine is started. Failure to
do so may result in serious injury or death.
BLOWER SWITCH
A two-position rocker switch activates the engine box
ventiliation 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 running, but is not necessary at
cruising speed.
Failure to operate the blower as instructed could cause
improper ventilation of the boat engine and bilge
areas. Fuel vapors can accumulate in this area and
cause a fire or explosion which may
result in serious injury or death!
MANUAL AND AUTOMATIC
BILGE PUMP SWITCH
A three-position rocker switch activates the bilge pump.
Push the top half of the switch to turn the bilge pump to the
manual ON position. Press the switch down to activate the
bilge pump for automatic mode while the boat is underway.
When the switch is centered, the bilge pump is OFF. The
bilge pumps on all V-drive models will be in the automatic
mode when the ignition key is turned ON.
BALLAST PUMP SWITCH
On boat models equipped with a ballast system, a three-
position switch will allow for the filling or emptying of the
ballast tanks and/or bags. It is important to be aware that
the engine must operate at 1500 RPM during the fill and
empty processes. Failure to do so can result in malfunction
or permanent damage to the ballast pumps that force the
water through the system. This is not covered under
warranty.
CIRCUIT BREAKERS
All major
boat circuits
are protected
from shorting
and overload
by re-settable
circuit break-
ers. If a
problem
develops with
one of the
following
circuits,
switch OFF
the circuit and wait about one minute. Then push the
appropriate breaker button fully and switch ON the circuit.
If the circuit continues to trip, there is a problem some-
where that must be attended to immediately. See your
MasterCraft dealer.
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 it is
located near the battery box. There may also be a water-
proof fuse for the stereo amplifier, where equipped. If the
boat’s accessories are not functional, check and re-set
breakers as necessary.
The engines are also equipped with breaker systems.
The main 50A circuit breaker protects the engine electrical
system and components from overload.
If the engine will not turn over with the battery switch in
the ON position, locate the red breaker re-set button
(labeled “50”) in the engine.
2006 MasterCraft Owners Manual–Page 5-3
The main breaker panel is shown above and is located under
the dash panel. The waterproof fuse shown above left is used
for the stereo amplifier, and the additional accessory breaker
shown above right is located near the battery box.