Yamaha F250 Owners Manual

Basic components
15
matically to its set position. The remote con-
trol will then engage forward and reverse
normally.
EMU25971Throttle friction adjuster
A friction device provides adjustable resis-
tance to movement of the throttle grip or the
remote control lever, and can be set accord-
ing to operator preference.
To increase resistance, turn the adjuster
clockwise. To decrease resistance, turn the
adjuster counterclockwise.
WARNING
EWM00031
Do not overtighten the friction adjuster. If
there is too...

Basic components
16
EMU26090Main switch
The main switch controls the ignition system;
its operation is described below.

“” (off)
With the main switch in the “” (off) posi-
tion, the electrical circuits are off, and the key
can be removed.

“” (on)
With the main switch in the “” (on) position,
the electrical circuits are on, and the key can-
not be removed.

“” (start)
With the main switch in the “” (start) po-
sition, the starter motor turns to start the en-
gine. When the key is released, it returns...

Basic components
17
EMU26151Power trim and tilt switch on bottom 
engine cowling
The power trim and tilt switch is located on the
side of the bottom engine cowling. Pressing
the switch “” (up) trims the outboard motor
up, then tilts it up. Pressing the switch “”
(down) tilts the outboard motor down and
trims it down. When the switch is released,
the outboard motor will stop in its current po-
sition.
WARNING
EWM01030
Use the power trim and tilt switch located
on the bottom engine cowling only when
the...

Basic components
18
WARNING
EWM00840
An improperly adjusted trim tab could
cause difficult steering. Always test run af-
ter the trim tab has been installed or re-
placed to be sure steering is correct. Be
sure you have tightened the bolt after ad-
justing the trim tab.
If the boat tends to veer the left (port side),
turn the trim tab rear end to the port side “A” in
the figure. If the boat tends to veer the right
(starboard side), turn the trim tab end to the
starboard side “B” in the figure.
CAUTION:...

Basic components
19
EMU31420Top cowling lock lever (pull up type)
To remove the top cowling, pull up the lock le-
ver(s) and lift off the cowling. To install the top
cowling, place it in its original position, and
then move the lever(s) downward to lock it in
place.
NOTE:

When installing the cowling, check to be
sure it fits properly in the rubber seal.

Be sure to check that the gap between the
top cowling and the bottom cowling is even
all around the cowling. If the top cowling is
loose or the gap is...

Basic components
20

The water separator warning indicator will
blink.

The buzzer will sound intermittently only
when the gear shift is in neutral.

If the warning system has activated, stop
the engine and consult a Yamaha dealer
immediately.
EMU31410Digital tachometer
The tachometer shows the engine speed and
has the following functions.
NOTE:
All segments of the display will light momen-
tarily after the main switch is turned on and
will return to normal thereafter.
NOTE:
The water separator warning...

Basic components
21
EMU26600Speedometer (digital type)
This gauge shows the boat speed.
NOTE:
After the main switch is first turned on, all seg-
ments of the display come on as a test. After
a few seconds, the gauge will change to nor-
mal operation. Watch the gauge when turning
on the main switch to make sure all segments
come on.
NOTE:
The speedometer displays km/h, mph, or
knots, according to operator preference. Se-
lect the desired unit of measurement by set-
ting the selector switch on the back of...

Basic components
22
EMU26650Hour meter (digital type)
This meter shows the number of hours the en-
gine has been run. It can be set to show the
total number of hours or the number of hours
for the current trip. The display can also be
turned on and off.

Changing the display format
Pressing the “” (mode) button chang-
es the display format in the following pat-
tern:
Total hours→Trip hours→Display off

Resetting the trip hours
Simultaneously pressing the “” (set) and
“” (mode) buttons for more than 1...

Basic components
23
NOTE:
The clock operates on battery power. Discon-
necting the battery will stop the clock. Reset
the clock after connecting the battery.
EMU26710Fuel gauge
The fuel level is indicated by eight segments.
When all segments are showing, the fuel tank
is full.
CAUTION:
ECM00860
The Yamaha fuel tank sensor differs from
conventional sensors. Incorrectly setting
the selector switch on the gauge will give
false readings. Consult your Yamaha deal-
er on how to correctly set the selector...

Basic components
24
EMU26740Fuel management meter
The fuel management meter shows the state
of the fuel consumption while the engine is
running.
NOTE:
After the main switch is first turned on, all seg-
ments of the display come on as a test. After
a few seconds, the gauge will change to nor-
mal operation. Watch the gauge when turning
on the main switch to make sure all segments
come on.
EMU26750Fuel flow meter
The fuel flow meter displays the amount of
fuel flow over a one hour period, at the current...