Speedometer; Temperature Gauge - Four winns 248 Vista Owner's Manual

NOTICE
Never exceed the maximum recommended
operating RPM of your engines. Maintaining
maximum, or close to maximum RPM for ex-
tended periods can reduce the life of the engines.
Some engines are equipped with devices that limit en-
gine RPM in accordance with the oil pressure or engine
temperature. Refer to the engine owner's manual for ad-
ditional information.
The tachometer must be set for different engines installed.
This is typically done at the factory. The tachometer
gauge is shown along with the table detailing the ta-
chometer settings. See Figure E9.
Figure E9: Tachometer - Rear View
B. Speedometer
The speedometer is a water pressure sensitive unit. It
has a pick-up (pitot tube) assembly mounted on the tran-
som and a small plastic hose (speedo tube) that con-
nects it to the speedometer gauge on the dash. See
Figure E10. The pitot tube extends below the hull. Wa-
ter strikes the tube inlet and creates positive pressure.
The faster the boat speed, the greater the pressure, and
the higher the speed indication on the speedometer.
Vista™ Owner's Manual
™
Figure E10: Speedo Sender
A speedometer may not be available on certain Vista™
models. With the optional GPS/Navigational package
the ability to monitor your speed becomes available.
Please refer to the manufacturer's literature for program-
ming the GPS unit for speed readings. This information
is included in the owner's packet when the boat is or-
dered with the navigation package.
NOTICE
Speedometers/speed indicators are not preci-
sion instruments. The indications are relative
and should never be used for navigational pur-
poses or similar critical situations alone. Use
other navigation systems in conjunction with the

speedometer.

NOTICE
DO NOT rely on the speed indicator when trying
to achieve a "NO WAKE" condition in a harbor or
other enclosed waterway. ALWAYS be cogni-
zant of the size of your waves your boat is mak-
ing and reduce throttle until you are sure that
they will not cause any damage. You are
responsible for damage caused by the wake of
your boat.
C. Temperature Gauge
The temperature gauge monitors the cooling system of
the engine. A sudden increase in the temperature could
be a signal of a blocked cooling passage or a water pump
malfunction.
NOTICE
Operation of an overheated engine can result in
engine seizure. If an unusually high temperature
reading occurs, shut the engine off immediately.
Section E
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