Specifications
CONTROLS
While the Guide to Individual Models pages provide
specific information regarding the location of individual
gauges and switches for each MasterCraft model, there
is some general information about various gauges that
has a direct impact in the operation and maintenance of
your boat. The following includes information that should
be reviewed and recalled on a regular basis.
MULTI-FUNCTION GAUGE
This gauge provides several functions
of interest and support to the boater.
As a tachometer, it indicates the engine
speed in crankshaft revolutions per
minute (RPM). Propeller shaft RPM is
the same as the engine rotation except
for boats equipped with the Power Slot
1.5:1 ratio package or a V-drive gear, in
which case propeller shaft RPM is less than that of the
engine RPM.
Toggle to the hourmeter and it registers the accumu-
lated engine operating time. Use the hourmeter to keep
accurate logs for scheduled maintenance. Replacing the
computer (known as the MMDC) will erase the hours. It
counts hours only when the engine is above 300 RPM.
When equipped with a revision C MMDC, the option exists
to change the display to metric from the hours screen. This
is done by holding down the gauge selection display button
for three seconds.When promoted, select English or metric
display. Wait an additional three seconds and the display will
return to normal operation.
Toggle to the air temperature gauge (optional) to get
an approximate reading of the ambient air temperature
above the water’s surface.
Toggle to the clock for the convenience of determining
the time.
Making Use of the Multi-Function Gauge
In addition to the displays noted to the left, the multi-
function gauge also displays several alarms. The
following messages will be displayed if an alarm occurs:
VOLT = Below 11.5 volts
OIL = Oil is below 4 p.s.i. when the R.P.M. is below
1000 R.P.M. or the oil pressure is below 10 p.s.i. and
above 1000 R.P.M.
TEMP = High engine temperature alarm
TRAN = Transmission alarm
The hourmeter displays the boat hours and is stored
in the engine’s computer. Replacing the computer
(known as an MMDC) will erase the hours. It counts
hours only when the engine is above 300 R.P.M. When
equipped with a revision C MMDC, the option exists to
change the display to metric from the hours screen. This
AND INDICATORS
is done by holding down the gauge selection display
button for three seconds. When prompted, select
English or metric display. Wait an additional three
seconds and the display will return to normal opera-
tion.
The clock can be adjusted by depressing the
gauge selection display button when the clock is
displayed. After three seconds the colon will stop
flashing and the hours are adjusted by pressing
down, while minutes are adjusted by pressing up.
After three additional seconds the clock will return
to normal operation.
Lake temperature is also standard on the gauge.
This comes from the paddle wheel located under the
boat. If the sensor becomes open or shorts-out to the
battery, it will read 32
0
F. If the sensor is shorted to
ground it will read 150
0
F. The temperature is also
where the SELF TEST is located. With the lake tempera-
ture displayed, hold down the gauge selection display
button for three seconds or until the self test has
started. During the test, all the segments on the display
will light up. Also during the self test, the gauges will re-
set, go to mid-scale and then to full-scale. After two
sweeps the system returns to normal.
SPEEDOMETER
The speedometer indicates
the forward speed of the boat in
miles per hour (unless your boat
is equipped with the kilometers
per hour available in the Euro-
pean Package).
To calibrate the speedometer
you need an accurately mea-
sured course of 850 feet and a
certified stopwatch accurate to within one-thousandth of
a second. To calibrate to AWSA official-tournament
rules:
• Approach the course at an indicated 36 miles per
hour (MPH). Hold the speed steady and have an
observer check the course time with a stopwatch.
• If the course time is between 15.88 and 16.28
seconds, no adjustments are necessary.
• If the course time is not within tolerance, press up or
down on the calibration rocker switch to adjust the
calibration.
FUEL GAUGE
The readings are only approximate. The gauge is
activated with the ignition switch. Rocking motion of the
boat during normal operation will cause fluctuation of
the fuel gauge. For a more accurate reading, make
2006 MasterCraft Owners Manual–Page 5-1