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Yamaha F115 Owners Manual

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    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 rules which apply when you
    are driving your boat. These rules are used
    internationally, and are also enforced by the
    United States Coast Guard and local agen-
    cies. You should be aware of these rules,
    and follow them whenever you encounter
    another vessel on the water.
    Several sets of rules prevail according to
    geographic location, but are all basically the
    same as the International Rules of the Road.
    The rules presented here in your Owner’s
    Manual are condensed, and have been pro-
    vided for your convenience only. Consult
    your local U.S. Coast Guard Auxiliary or De-
    partment of Motor Vehicles for a complete
    set of rules governing the waters in which
    you will be using your boat. 
    EMU25510 
    Steering and sailing rules and sound 
    signals 
    Whenever two vessels on the water meet
    one another, one vessel has the right-of-
    way; it is called the “stand-on” vessel. The
    vessel which does not have the right-of-way
    is called the “give-way” or “burdened” vessel.These rules determine which vessel has the
    right-of-way, and what each vessel should
    do. 
    Stand-on vessel 
    The vessel with the right-of-way has the duty
    to continue its course and speed, except to
    avoid an immediate collision. When you
    maintain your direction and speed, the other
    vessel will be able to determine how best to
    avoid you. 
    Give-way vessel 
    The vessel which does not have the right-of-
    way has the duty to take positive and timely
    action to stay out of the way of the Stand-On
    vessel. Normally, you should not cross in
    front of the vessel with the right-of-way. You
    should slow down or change directions brief-
    ly and pass behind the other vessel. You
    should always move in such a way that the
    operator of the other vessel can see what
    you are doing. 
    “The general prudential rule” 
    This rule is called Rule 2 in the International
    Rules and says,
    “In obeying and construing these rules due
    regard shall be had to all dangers of naviga-
    tion and collision, and to any special circum-
    stances, which may render a departure from
    the above rules necessary in order to avoid
    immediate danger.”
    In other words, follow the standard rules ex-
    cept when a collision will occur unless both
    vessels try to avoid each other. If that is the
    case, both vessels become “Give-Way” ves-
    sels. 
    EMU25520 
    Rules when encountering vessels 
    There are three main situations which you
    may encounter with other vessels which
    could lead to a collision unless the Steering
    Rules are followed: 
    Meeting: 
     (you are approaching another ves- 
    						
    							 
    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 meeting another power vessel
    head on, and are close enough to run the risk
    of collision, neither of you has the right-of-
    way! Both of you should alter course to avoid
    an accident. You should keep the other ves-
    sel on your port (left) side. This rule doesn’t
    apply if both of you will clear one another if
    you continue on your set course and speed. 
    Crossing 
    When two power driven vessels are crossing
    each other’s path close enough to run the
    risk of collision, the vessel which has the oth-
    er on the starboard (right) side must keep out
    of the way of the other. If the other vessel is
    on your right, you must keep out of its way;
    you are the Give-Way vessel. If the other
    vessel is on your port (left) side, remember
    that you should maintain course and direc-
    tion, provided the other vessel gives you the
    right-of-way as it should. 
    Overtaking 
    If you are passing another vessel, you are
    the “Give-Way” vessel. This means that the
    other vessel is expected to maintain its
    course and speed. You must stay out of its
    way until you are clear of it. Likewise, if an-
    other vessel is passing you, you should
    maintain your speed and direction so that the
    other vessel can steer itself around you. 
    EMU25530 
    Other special situations 
    There are three other rules you should be
    aware of when driving your boat around oth-
    er vessels. 
    Narrow channels and bends 
    When navigating in narrow channels, you
    should keep to the right when it is safe and
    practical to do so. If the operator of a power-
    driven vessel is preparing to go around a 
    						
    							 
    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 which are fishing with nets, lines
    or trawls are considered to be “fishing ves-
    sels” under the International Rules. Vessels
    with trolling lines are not considered fishing
    vessels. Fishing vessels have the right-of-
    way regardless of position. Fishing vessels
    cannot, however, impede the passage of
    other vessels in narrow channels. 
    Sailing vessel right-of-way 
    Sailing vessels should normally be given the
    right-of-way. The exceptions to this are:
    1. When the sailing vessel is overtaking
    the power-driven vessel, the power-driv-
    en vessel has the right-of-way.
    2. Sailing vessels should keep clear of any
    fishing vessel.
    3. In a narrow channel, a sailing vessel
    should not hamper the safe passage of
    a power-driven vessel which can navi-
    gate only in such a channel. 
    Reading buoys and other markers 
    The waters of the United states are marked
    for safe navigation by the lateral system of
    buoyage. Simply put, buoys and markers
    have an arrangement of shapes, colors,
    numbers and lights to show which side of the
    buoy a boater should pass on when navigat-
    ing in a particular direction. The markings on
    these buoys are oriented from the perspec-
    tive of being entered from seaward (the boat-er is going towards the port). This means that
    red buoys are passed on the starboard
    (right) side when proceeding from open wa-
    ter into port, and black buoys are to port (left)
    side. When navigating out of port, your posi-
    tion with respect to the buoys should be re-
    versed; red buoys should be to port and
    black buoys to starboard.
    Many bodies of water used by boaters are
    entirely within the boundaries of a particular
    state. The Uniform State Waterway Marking
    System has been devised for these waters.
    This system uses buoys and signs with dis-
    tinctive shapes and colors to show regulato-
    ry or advisory information. These markers
    are white with black letters and orange
    boarders. They signify speed zones, restrict-
    ed areas, danger areas, and general infor-
    mation.
    Remember, markings may vary by geo-
    graphic location. Always consult local boat-
    ing authorities before driving your boat in
    unfamiliar waters. 
    						
    							 
    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  
    Use only new clean gasoline which has
    been stored in clean containers and is not
    contaminated with water or foreign mat- 
    ter. 
    EMU25570 
    Gasoline 
    If knocking or pinging occurs, use a different
    brand of gasoline or premium unleaded fuel. 
    Gasohol 
    There are two types of gasohol: gasohol con-
    taining ethanol and that containing metha-
    nol. Gasohol containing ethanol can be used
    if ethanol content does not exceed 10% and
    the fuel meets minimum octane ratings.
    Yamaha does not recommended gasohol
    containing methanol because it can cause
    fuel system damage or engine performance
    problems. 
    EMU31440 
    Engine oil
    NOTE:
     
    If the recommended engine oil grades are
    not available, select an alternative from the
    following chart according to the average 
    temperatures in your area.
    CAUTION:
     
    ECM01050  
    All 4-stroke engines are shipped from the 
    factory without engine oil. 
    Recommended gasoline:
    Regular unleaded gasoline with a min-
    imum octane rating of 86 (Pump Oc-
    tane Number) = (R+M)/2
    Recommended engine oil:
    YAMALUBE 4-M FC-W oil or 4-stroke 
    motor oil with a combination of the fol-
    lowing SAE and API oil classifications
    Engine oil type SAE:
    10W-30 or 10W-40
    Engine oil grade API:
    SE, SF, SG, SH, SJ, SL
    Engine oil quantity (excluding oil filter):
    4.3 L (4.55 US qt) (3.78 Imp.qt) 
    						
    							 
    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 selection 
    The performance of your outboard motor will
    be critically affected by your choice of propel-ler, as an incorrect choice could adversely
    affect performance and could also seriously
    damage the motor. Engine speed depends
    on the propeller size and boat load. If engine
    speed is too high or too low for good engine
    performance, this will have an adverse effect
    on the engine.
    Yamaha outboard motors are fitted with pro-
    pellers chosen to perform well over a range
    of applications, but there may be uses where
    a propeller with a different pitch would be
    more appropriate. For a greater operating
    load, a smaller-pitch propeller is more suit-
    able as it enables the correct engine speed
    to be maintained. Conversely, a larger-pitch
    propeller is more suitable for a smaller oper-
    ating load.
    Yamaha dealers stock a range of propellers,
    and can advise you and install a propeller on
    your outboard that is best suited to your ap-
    plication.
    NOTE:
     
    Select a propeller which will allow the engine
    to reach the middle or upper half of the oper-
    ating range at full throttle with the maximum
    boat load. If operating conditions such as
    light boat loads then allow the engine r/min to Minimum cold cranking amps (CCA/
    SAE):
    380.0 A
    Minimum marine cranking amps (MCA/
    ABYC):
    502.0 A
    Minimum reserve capacity (RC/SAE):
    124 minutes
    ZMU01710
     
    1. Propeller diameter in inches
    2. Propeller pitch in inches
    3. Type of propeller (propeller mark)
    ZMU04608
    - x
    123 
    						
    							 
    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 (binnacle mount type)*
    14. Switch panel (for use with binnacle type)*15. Tachometer*
    16. Trim meter*
    17. Digital speedometer*
    18. Digital tachometer*
    19. Fuel management meter* 
    						
    							 
    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 trigger
    4. Neutral throttle lever
    5. Main switch / choke switch
    6. Engine stop lanyard switch
    7. Throttle friction adjuster 
    						
    							 
    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 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. 
    1. Remote control lever
    2. Power trim and tilt switch
    3. Free accelerator
    4. Throttle friction adjuster
    1. Neutral “ ”
    2. Forward “ ”
    3. Reverse “ ”
    4. Shift
    5. Fully closed
    6. Throttle
    7. Fully open
    2
    3
    2
    1
    4
    ZMU04569
     
    1. Neutral “ ”
    2. Forward “ ”
    3. Reverse “ ”
    4. Shift
    5. Fully closed
    6. Throttle
    7. Fully open
    1. Neutral interlock trigger
    N
    1
    F
    7 62R
    3 44
    6
    5
    7 5
    ZMU04573 
    						
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