Scout Boats 300 LXF, Owner'S Manual

Page: 45 / 173

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Propulsion System
Speedometer
The speedometer indicates the speed of the boat
in miles per hour (MPH). Most speedometers
measure the water pressure against a small hole
in a pickup tube located in the engine lower unit
or mounted on the bottom of the transom. Ya-
maha speedometers also contain the fuel meters
and low fuel warning light, a trip meter, a clock
and a voltmeter.
Yamaha Command Link
®
speedometers can in-
dicate boat speed via the engine pickup or an
optional GPS or depth sounder triducer, if these
options are installed in your boat. Refer to the
engine gauge and electronics operating manuals
for more information on the speedometer options
available for your boat.
Overheat Warning Indicator
The temperature warning indicates that the tem-
perature of the engine is too high. A sudden
increase in the temperature could indicate an
obstructed water inlet or a water pump impeller
failure. On Yamaha engines the overheat warning
indicator is built into each tachometer or command
link display panel. It will start to blink and an alarm
will sound if the engine temperature is too high.
CAUTION
CONTINUED OPERATION OF AN OVERHEATED ENGINE
CAN RESULT IN ENGINE SEIZURE. IF AN UNUSUALLY HIGH
TEMPERATURE READING OCCURS, SHUT THE ENGINE OFF
IMMEDIATELY. THEN INVESTIGATE AND CORRECT THE
PROBLEM
Fuel Gauge
The fuel gauge indicates the amount of fuel in
the fuel tank.
On boats equipped with Yamaha engines, the fuel
gauge is built into the Yamaha speedometer multi-
gauge or command link display panel. The fuel
indicator on the Yamaha gauge will begin to blink
if the fuel in the tank drops too low.
Voltmeters
The voltmeters display the voltage level for the
battery and the charging system voltage for each
engine. The normal voltage is 11 to 12 volts
with the engines off and 13 to 14.5 volts with the
engines running. The Yamaha engine voltmeter
is built into the speedometer or command link
display panel. It will begin to blink if the voltage
in the battery drops too low.
Hour Meters
The hour meters keep a record of the operating
time for each engine.
Engine Tilt/Trim Gauges
The tilt/trim gauges monitor the position of each
outboard engine. The upper range of the gauge
indicates the tilt, which is used for trailering and
shallow water operation. The lower range indi-
cates the trim position. This is the range used to
adjust the hull angle while operating your boat
on plane. The Yamaha engine trim indicator is
built into the tachometers or command link dis-
play panel. Please refer to the engine owner’s
manual for more information on the operation of
the outboard power tilt and trim.
Engine Alarms
All outboards are equipped with an audible alarm
system mounted in the helm area that monitors
selected critical engine systems. The alarm will
sound if one of these systems begins to fail. Refer
to the engine owner’s manual for information on
the alarms installed with your engines.
CAUTION
IF THE ENGINE ALARM SOUNDS, IMMEDIATELY SHUT OFF THE
ENGINE UNTIL THE PROBLEM IS FOUND AND CORRECTED.
Fuel Management
Fuel management systems are standard equip-
ment with some outboard engines. On Yamaha
engines, the fuel management gauge is a multi-
function gauge or is integrated in command link
display panel. It monitors the gallons per hour,
miles per gallon, total gallons used, total gallons
remaining.
If you have a fuel management system installed
on your boat, please refer to the engine or fuel
management manual for detailed information on
that system.
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