45
Propulsion System
CAUTION
NEVER EXCEED THE MAXIMUM RECOMMENDED OPERATION
RPM OF THE ENGINES. MAINTAINING MAXIMUM, OR CLOSE
TO MAXIMUM RPM FOR EXTENDED PERIODS CAN REDUCE
THE LIFE OF THE ENGINES.
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 display
panel. 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.
Single Engine Command Link Plus®
Tachometer and Engine Monitoring Display
Summary of Contents for 255 DORADO
Page 1: ...1 Owner s Manual 255 DORADO Scout Boats Inc 2531 Hwy 78 West Summerville SC 29483 ...
Page 2: ...2 Rev 0 Print Date 9 20 2017 ...
Page 12: ...12 NOTES ...
Page 18: ...18 NOTES ...
Page 27: ...27 Operation ...
Page 62: ...62 NOTES ...
Page 112: ...112 NOTES ...
Page 116: ...116 NOTES ...
Page 124: ...124 NOTES ...
Page 130: ...130 NOTES ...
Page 134: ...134 Schematics Raw Water System Raw Water Washdown Raw Water Pump Raw Water System ...
Page 143: ...143 143 Appendix C Maintenance Log Hours Date Dealer Service Repairs ...
Page 144: ...144 Maintenance Log Hours Date Dealer Service Repairs ...
Page 145: ...145 Maintenance Log Hours Date Dealer Service Repairs ...
Page 146: ...146 Maintenance Log Hours Date Dealer Service Repairs ...
Page 147: ...147 Maintenance Log Hours Date Dealer Service Repairs ...
Page 148: ...148 Maintenance Log Hours Date Dealer Service Repairs ...
Page 149: ...149 149 Appendix D ...
Page 150: ...150 Boating Accident Report ...
Page 151: ...151 Boating Accident Report ...
Page 152: ...152 NOTES ...
Page 154: ...154 NOTES ...
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Page 161: ...161 Scout Boats Inc 2531 Hwy 78 West Summerville SC 29483 ...