Yamaha F115 Owners Manual

 
General information 
5 
EMU25413 
Label (counter rotation models)
WARNING
 
EWM01281  
Use only a counterclockwise rotation
propeller with this engine.
Counterclockwise propellers are marked
with a letter “L” after the size indication.
The wrong type of propeller could cause
the boat to go in an unexpected direction, 
which could lead to an accident. 
EMU25500 
Basic boating rules (Rules of 
the road) 
Just as there are rules which apply when you
are driving on streets and high ways, there
are waterway...

 
General information 
6 
sel head-on) 
Crossing: 
 (you are traveling across the oth-
er vessel’s path) 
Overtaking: 
 (you are passing or being
passed by another vessel)
In the following illustration, your boat is in the
center. You should give the right-of-way to
any vessels shown in white area (you are the
Give-Way vessel). Any vessels in the shad-
ed area must yield to you (they are the Give-
Way vessels). Both you and the meeting
vessel must alter course to avoid each other. 
Meeting 
If you are...

 
General information 
7 
bend that may obstruct the view of other wa-
ter vessels, the operator should sound a pro-
longed blast on the whistle (4 to 6 seconds).
If another vessel is around the bend, it too
should sound the whistle. Even if no reply is
heard, however, the vessel should still pro-
ceed around the bend with caution. If you
navigate such waters with your boat, you will
need to carry a portable air horn, available
from local marine supply stores. 
Fishing vessel right-of-way 
All vessels...

 
General information 
8 
EMU25540 
Fueling instructions
WARNING
 
EWM00010  
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE! 
 
Do not smoke when refueling, and keepaway from sparks, flames, or other
sources of ignition. 
 
Stop engine before refueling. 
 
Refuel in a well-ventilated area. Refuel
portable fuel tanks off the boat. 
 
Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
ZMU01708 

 
General information 
9 
dry rags. 
 
Do not overfill the fuel tank. 
 
Tighten the filler cap securely after re-
fueling. 
 
If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention. 
 
If any gasoline spills onto your skin, im-
mediately wash with soap and water.
Change clothing if gasoline spills on it. 
 
Touch the fuel nozzle to the filler open-
ing or funnel to help prevent electro- 
static sparks.
CAUTION:
 
ECM00010...

 
General information 
10 
EMU25700 
Battery requirement
CAUTION:
 
ECM01060  
Do not use a battery that does not meet
the specified capacity. If a battery which
does not meet specifications is used, the
electric system could perform poorly or
be overloaded, causing electric system 
damage. 
For electric start models, choose a battery
which meets the following specifications. 
EMU25711 
Battery specifications
NOTE:
 
The engine cannot be started if battery volt- 
age is too low. 
EMU25742 
Propeller...

 
General information 
11 
rise above the maximum recommended
range, reduce the throttle setting to maintain 
the engine in the proper operating range.
For instructions on propeller removal and in-
stallation, see page 69. 
EMU25770 
Start-in-gear protection 
Yamaha outboard motors or Yamaha-ap-
proved remote control units are equipped
with start-in-gear protection device(s). This
feature permits the engine to be started only
when it is in neutral. Always select neutral
before starting the engine. 

 
12 
Basic components 
EMU25799 
Main components
NOTE:
 
* May not be exactly as shown; also may not be included as standard equipment on all mod- 
els. 
F115, LF115
1
22
3
4
5
6 7 8 911
121314
1516
1718 19
ZMU04773
10
 
1. Top cowling
2. Top cowling lock lever(s)
3. Drain screw
4. Anti-cavitation plate
5. Trim tab (anode)
6. Propeller*
7. Cooling water inlet
8. Anode
9. Flushing device
10. Water separator
11. Power trim and tilt switch
12. Remote control box (side mount type)*
13. Remote control box...

 
Basic components 
13 
  
EMU26180 
Remote control 
The remote control lever actuates both the
shifter and the throttle. The electrical switch-
es are mounted on the remote control box.
1
46 3
2
5
ZMU05429
 
1. Tachometer unit (Square type)*
2. Tachometer unit (Round type)*
3. Speedometer unit (Square type)*
4. Speed & fuel meter unit (Square type)*
5. Speed & fuel meter unit (Round type)*
6. Fuel management meter (Square type)*
1. Power trim and tilt switch
2. Remote control lever
3. Neutral interlock...

 
Basic components 
14 
EMU26190 
Remote control lever 
Moving the lever forward from the neutral po-
sition engages forward gear. Pulling the le-
ver back from neutral engages reverse. The
engine will continue to run at idle until the le-
ver is moved about 35° (a detent can be felt).
Moving the lever farther opens the throttle,
and the engine will begin to accelerate. 
EMU26201 
Neutral interlock trigger 
To shift out of neutral, first pull the neutral in-
terlock trigger up. 
EMU26211 
Neutral...