Yamaha F 40 User Guide

 
Basic components 
15 
EMU26201 
Neutral interlock trigger 
To shift out of neutral, first pull the neutral in-
terlock trigger up. 
EMU26211 
Neutral throttle lever 
To open the throttle without shifting into ei-
ther forward or reverse, put the remote con-
trol lever in the neutral position and lift the
neutral throttle lever.
NOTE:
 
The neutral throttle lever will operate only
when the remote control lever is in neutral.
The remote control lever will operate only
when the neutral throttle lever is...

 
Basic components 
16 
EMU25941 
Throttle grip 
The throttle grip is on the tiller handle. Turn
the grip counterclockwise to increase speed
and clockwise to decrease speed. 
EMU25961 
Throttle indicator 
The fuel consumption curve on the throttle
indicator shows the relative amount of fuel
consumed for each throttle position. Choose
the setting that offers the best performance
and fuel economy for the desired operation. 
EMU25971 
Throttle friction adjuster 
A friction device provides adjustable resis-...

 
Basic components 
17 
When constant speed is desired, tighten the
adjuster to maintain the desired throttle set-
ting. 
EMU25990 
Engine stop lanyard switch 
The lock plate must be attached to the en-
gine stop switch for the engine to run. The
lanyard should be attached to a secure place
on the operator’s clothing, or arm or leg.
Should the operator fall overboard or leave
the helm, the lanyard will pull out the lock
plate, stopping ignition to the engine. This
will prevent the boat from running away...

 
Basic components 
18 
EMU26070 
Manual starter handle 
To start the engine, first gently pull the han-
dle out until resistance is felt. From that posi-
tion, then pull the handle straight out quickly
to crank the engine. 
EMU26090 
Main 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)...

 
Basic components 
19 
If the resistance does not increase even
when the lever is turned to the port side “A”,
make sure that the nut is tightened to the
specified torque.
NOTE:
 
 
Check the tiller handle for smooth move-
ment when the lever is turned to the star-
board side “B”. 
 
Do not apply lubricants such as grease to
the friction areas of the steering friction ad- 
juster. 
EMU26122 
Steering friction adjuster 
A friction device provides adjustable resis-
tance to the steering mechanism, and...

 
Basic components 
20 
EMU26151 
Power trim and tilt switch on bottom 
engine cowling 
The power trim and tilt switch is located on
the side of the bottom engine cowling. Press-
ing 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 re-
leased, the outboard motor will stop in its
current position.
WARNING
 
EWM01030  
Use the power trim and tilt switch located
on the bottom engine cowling...

 
Basic components 
21 
EMU26312 
Tilt lock mechanism 
The tilt lock mechanism is used to prevent
the outboard motor from lifting out of the wa-
ter when in reverse gear.
To lock it, set the tilt lock lever in the “”
(lock) position. To release, push the tilt lock
lever in the “” (release) position. 
EMU26320 
Tilt support knob 
To keep the outboard motor in the tilted up
position, push the tilt support knob under the
swivel bracket. 
EMU26372 
Top cowling lock lever(s) (turn type) 
To remove the engine...

 
Basic components 
22 
EMU26302 
Warning indicator 
If the engine develops a condition which is
cause for warning, the indicator lights up. For
details on how to read the warning indicator,
see page 25. 
EMU26470 
Tachometer 
This gauge shows the engine speed and has
the following functions. 
EMU26491 
Digital 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...

 
Basic components 
23
NOTE:
 
The water separator and engine trouble
warning indicators only operate when the en-
gine is equipped with the appropriate func- 
tions. 
EMU26503 
Low oil pressure warning indicator 
If oil pressure drops too low, this indicator will
flash. For further information, see page 25.
CAUTION:
 
ECM00020  
 
Do not continue to run the engine if the
low oil pressure warning indicator is on
and the engine oil level is lower. Seri-
ous engine damage will occur. 
 
The low oil...

 
Basic components 
24 
EMU26581 
Overheat warning indicator (digital 
type) 
If the engine temperature rises too high, the
warning indicator will start to blink. For fur-
ther information on reading the indicator, see
page 25.
CAUTION:
 
ECM00050  
Do not continue to run the engine if the
overheat warning indicator is on. Serious 
engine damage will occur. 
EMU26610 
Trim meter 
This gauge shows the trim angle of your out-
board motor.
NOTE:
 
Memorize the trim angles that work best for
your boat under...