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Yamaha 4 Stroke Owners Manual

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    							F4
    F6
    OWNER’S MANUAL
    LIT-18626-08-90
    6BV-F8199-11
    U.S.A.Edition    Read this manual carefully before operating this 
    outboard motor.
    DIC183 
    						
    							ZMU01690
    Read this manual carefully before operating this outboard motor. Keep this
    manual onboard in a waterproof bag when boating. This manual should stay
    with the outboard motor if it is sold.
    U6BV10E0.book  Page 1  Friday, July 17, 2009  2:29 PM 
    						
    							Important manual information
    EMU31284
    To the owner
    Thank you for selecting a Yamaha outboard
    motor. This Owner’s Manual contains infor-
    mation needed for proper operation, mainte-
    nance and care. A thorough understanding of
    these simple instructions will help you obtain
    maximum enjoyment from your new Yamaha.
    If you have any question about the operation
    or maintenance of your outboard motor,
    please consult a Yamaha dealer.
    In this Owner’s Manual particularly important
    information is distinguished in the following
    ways.
    : This is the safety alert symbol. It is used
    to alert you to potential personal injury haz-
    ards. Obey all safety messages that follow
    this symbol to avoid possible injury or death.
    WARNING
    EWM00781
    A WARNING indicates a hazardous situa-
    tion which, if not avoided, could result in
    death or serious injury.
    NOTICE
    ECM00701
    A NOTICE indicates special precautions
    that must be taken to avoid damage to the
    outboard motor or other property.
    TIP:
    A TIP provides key information to make pro-
    cedures easier or clearer.
    Information about the owner’s manual
    Yamaha continually seeks advancements in
    product design and quality. Therefore, while
    this manual contains the most current product
    information available at the time of printing,
    there may be minor discrepancies betweenyour machine and this manual. If there is any
    question concerning this manual, please con-
    sult your Yamaha dealer.
    TIP:
    The F4MHA, F6MHA and the standard acces-
    sories are used as a base for the explanations
    and illustrations in this manual. Therefore
    some items may not apply to every model.
    EMU25132
    F4, F6
    OWNER’S MANUAL
    ©2009 by Yamaha Motor Corporation, 
    U.S.A.
    1st Edition, December 2009
    All rights reserved.
    Any reprinting or unauthorized use
    without the written permission of
    Yamaha Motor Corporation, U.S.A.
    is expressly prohibited.
    Printed in France
    P/N LIT-18626-08-90
    info1  Page 1  Wednesday, December 9, 2009  11:39 AM 
    						
    							Table of contents
    Safety information ............................. 1
    Outboard motor safety ....................  1
    Propeller .............................................  1
    Rotating parts .....................................  1
    Hot parts .............................................  1
    Electric shock .....................................  1
    Engine shut-off cord (lanyard) ............  1
    Gasoline .............................................  1
    Gasoline exposure and spills .............  1
    Carbon monoxide ...............................  1
    Modifications ......................................  2
    Boating safety .................................  2
    Alcohol and drugs...............................  2
    Personal flotation devices ..................  2
    People in the water.............................  2
    Passengers ........................................  2
    Overloading ........................................  2
    Avoid collisions ...................................  2
    Weather ..............................................  3
    Accident reporting ..............................  3
    Boat education and training................  3
    Passenger training .............................  3
    Boating safety publications.................  3
    Laws and regulations .........................  3
    Boating organizations......................  4
    Basic boating rules 
    (Rules of the road) .......................  4
    Steering and sailing rules and sound 
    signals .............................................  4
    Rules when encountering vessels ......  5
    Other special situations ......................  6
    General information .......................... 8
    Identification numbers record ..........  8
    Outboard motor serial number ...........  8
    Read manuals and labels................  9
    Warning labels....................................  9
    Specifications and requirements ... 12
    Specifications ................................  12
    Installation requirements ...............  13
    Boat horsepower rating ....................  13
    Mounting the outboard motor ...........  13
    Propeller selection ........................  13
    Start-in-gear protection .................  14
    Engine oil requirements ................  14
    Fuel requirements .........................  14
    Gasoline ...........................................  14
    Ring Free Fuel Additive ....................  15
    Anti-fouling paint ...........................  15
    Motor disposal requirements.........  15
    Emergency equipment ..................  15
    Emission control information .........  16
    North American models ....................  16
    Star labels ........................................  16
    Components .................................... 18
    Components diagram....................  18
    Fuel tank (built-in fuel tank) ..............  18
    Fuel tank (portable fuel tank) ............  19
    Fuel cock ..........................................  19
    Tiller handle ......................................  20
    Gear shift lever .................................  20
    Throttle grip ......................................  20
    Throttle indicator ...............................  21
    Throttle friction adjuster ....................  21
    Engine shut-off cord (lanyard) and 
    clip .................................................  22
    Engine stop button ...........................  22
    Choke knob for pull type...................  22
    Fuel joint cap ....................................  22
    Manual starter handle.......................  23
    Steering friction adjuster ...................  23
    Trim rod (tilt pin) ...............................  23
    Tilt lock mechanism ..........................  23
    Tilt support bar .................................  24
    Cowling lock lever ............................  24
    Carrying handle ................................  24
    Installation ....................................... 26
    Installation .....................................  26
    Mounting the outboard motor ...........  26
    Clamping the outboard motor ...........  28
    Operation ......................................... 29
    First-time operation .......................  29
    Fill engine oil ....................................  29
    Breaking in engine ............................  29
    Getting to know your boat ................  29
    U6BV10E0.book  Page 1  Friday, July 17, 2009  2:29 PM 
    						
    							Table of contents
    Checks before starting engine ......  29
    Fuel level ..........................................  29
    Removing top cowling ......................  30
    Fuel system ......................................  30
    Controls ............................................  30
    Engine shut-off cord (lanyard) ..........  31
    Engine oil..........................................  31
    Engine ..............................................  32
    Installing top cowling ........................  32
    Filling fuel ......................................  32
    Operating engine...........................  34
    Sending fuel .....................................  34
    Starting engine .................................  36
    Checks after starting engine .........  38
    Cooling water ...................................  38
    Warming up engine .......................  38
    Warming up ......................................  38
    Checks after engine warm up .......  39
    Shifting .............................................  39
    Stop switches ...................................  39
    Shifting ..........................................  39
    Stopping boat ................................  40
    Stopping engine ............................  40
    Procedure .........................................  40
    Trimming outboard motor ..............  41
    Adjusting trim angle for manual tilt 
    models ..........................................  41
    Adjusting boat trim............................  42
    Tilting up and down .......................  43
    Procedure for tilting up .....................  43
    Procedure for tilting down.................  44
    Shallow water ................................  45
    Cruising in shallow water..................  45
    Cruising in other conditions ...........  46
    Maintenance..................................... 47
    Transporting and storing outboard 
    motor ..........................................  47
    Dismounting the outboard motor ......  47
    Storing outboard motor.....................  49
    Procedure .........................................  50
    Lubrication ........................................  52
    Cleaning and anticorrosion 
    measures ......................................  52Cleaning the outboard motor ............  52
    Checking painted surface of motor ...  52
    Periodic maintenance ...................  53
    Replacement parts ...........................  53
    Maintenance interval guidelines .......  53
    Maintenance chart 1 .........................  54
    Maintenance chart 2 .........................  56
    Greasing ...........................................  57
    Cleaning and adjusting spark plug ...  58
    Checking fuel filter ............................  58
    Inspecting idle speed........................  59
    Changing engine oil ..........................  59
    Checking connector and lead ...........  61
    Checking propeller ...........................  61
    Removing propeller ..........................  61
    Installing propeller ............................  62
    Changing gear oil .............................  62
    Inspecting and replacing anode 
    (external) .......................................  63
    Trouble Recovery............................ 64
    Troubleshooting ............................  64
    Temporary action in emergency ...  66
    Impact damage .................................  66
    Starter will not operate .....................  66
    Emergency engine starting ...............  67
    Treatment of submerged motor ....  69
    Consumer information ................... 70
    YAMAHA MOTOR 
    CORPORATION, U.S.A. 
    FOUR-STROKE OUTBOARD 
    MOTOR THREE-YEAR 
    LIMITED WARRANTY ...............  70
    IMPORTANT WARRANTY 
    INFORMATION IF YOU USE 
    YOUR YAMAHA OUTSIDE 
    THE USA OR CANADA .............  72
    U6BV10E0.book  Page 2  Friday, July 17, 2009  2:29 PM 
    						
    							1
    Safety information
    EMU33622
    Outboard motor safety
    Observe these precautions at all times.EMU36501Propeller
    People can be injured or killed if they come in
    contact with the propeller. The propeller can
    keep moving even when the motor is in neu-
    tral, and sharp edges of the propeller can cut
    even when stationary.
    Stop the engine when a person is in the wa-
    ter near you.
    Keep people out of reach of the propeller,
    even when the engine is off.
    EMU33630Rotating parts
    Hands, feet, hair, jewelry, clothing, PFD
    straps, etc. can become entangled with inter-
    nal rotating parts of the engine, resulting in se-
    rious injury or death.
    Keep the top cowling in place whenever pos-
    sible. Do not remove or replace the cowling
    with the engine running.
    Only operate the engine with the cowling re-
    moved according to the specific instructions in
    the manual. Keep hands, feet, hair, jewelry,
    clothing, PFD straps, etc. away from any ex-
    posed moving parts.
    EMU33640Hot parts
    During and after operation, engine parts are
    hot enough to cause burns. Avoid touching
    any parts under the top cowling until the en-
    gine has cooled.
    EMU33650Electric shock
    Do not touch any electrical parts while starting
    or operating the engine. They can cause
    shock or electrocution.
    EMU33671Engine shut-off cord (lanyard)
    Attach the engine shut-off cord so that the en-
    gine stops if the operator falls overboard or
    leaves the helm. This prevents the boat fromrunning away under power and leaving peo-
    ple stranded, or running over people or ob-
    jects.
    Always attach the engine shut-off cord to a
    secure place on your clothing or your arm or
    leg while operating. Do not remove it to leave
    the helm while the boat is moving. Do not at-
    tach the cord to clothing that could tear loose,
    or route the cord where it could become en-
    tangled, preventing it from functioning.
    Do not route the cord where it is likely to be
    accidentally pulled out. If the cord is pulled
    during operation, the engine will shut off and
    you will lose most steering control. The boat
    could slow rapidly, throwing people and ob-
    jects forward.
    EMU33810Gasoline
    Gasoline and its vapors are highly flam-
    mable and explosive. Always, refuel accord-
    ing to the procedure on page 34 to reduce the
    risk of fire and explosion.
    EMU33820Gasoline exposure and spills
    Take care not to spill gasoline. If gasoline
    spills, wipe it up immediately with dry rags.
    Dispose of rags properly.
    If any gasoline spills onto your skin, immedi-
    ately wash with soap and water. Change
    clothing if gasoline spills on it.
    If you swallow gasoline, inhale a lot of gaso-
    line vapor, or get gasoline in your eyes, get
    immediate medical attention. Never siphon
    fuel by mouth.
    EMU33900Carbon monoxide
    This product emits exhaust gases which con-
    tain carbon monoxide, a colorless, odorless
    gas which may cause brain damage or death
    when inhaled. Symptoms include nausea,
    dizziness, and drowsiness. Keep cockpit and
    cabin areas well ventilated. Avoid blocking ex-
    haust outlets.
    U6BV10E0.book  Page 1  Friday, July 17, 2009  2:29 PM 
    						
    							Safety information
    2
    EMU33780Modifications
    Do not attempt to modify this outboard motor.
    Modifications to your outboard motor may re-
    duce safety and reliability, and render the out-
    board unsafe or illegal to use.
    EMU33740
    Boating safety
    This section includes a few of the many im-
    portant safety precautions that you should fol-
    low when boating.
    EMU33710Alcohol and drugs
    Never operate after drinking alcohol or taking
    drugs. Intoxication is one of the most common
    factors contributing to boating fatalities.
    EMU33720Personal flotation devices
    Have an approved personal flotation device
    (PFD) on board for every occupant. Yamaha
    recommends that you must wear a PFD
    whenever boating. At a minimum, children
    and non-swimmers should always wear
    PFDs, and everyone should wear PFDs when
    there are potentially hazardous boating condi-
    tions.
    EMU33731People in the water
    Always watch carefully for people in the wa-
    ter, such as swimmers, skiers, or divers,
    whenever the engine is running. When some-
    one is in the water near the boat, shift into
    neutral and stop the engine.
    Stay away from swimming areas. Swimmers
    can be hard to see.
    The propeller can keep moving even when
    the motor is in neutral. Stop the engine when
    a person is in the water near you.
    EMU33751Passengers
    Consult your boat manufacturer’s instructions
    for details about appropriate passenger loca-
    tions in your boat and be sure all passengers
    are positioned properly before acceleratingand when operating above an idle speed.
    Standing or sitting in non-designated loca-
    tions may result in being thrown either over-
    board or within the boat due to waves, wakes,
    or sudden changes in speed or direction.
    Even when people are positioned properly,
    alert your passengers if you must make any
    unusual maneuver. Always avoid jumping
    waves or wakes.
    EMU33760Overloading
    Do not overload the boat. Consult the boat ca-
    pacity plate or boat manufacturer for maxi-
    mum weight and number of passengers. Be
    sure that weight is properly distributed ac-
    cording to the boat manufacturers instruc-
    tions. Overloading or incorrect weight
    distribution can compromise the boats han-
    dling and lead to an accident, capsizing or
    swamping.
    EMU33772Avoid collisions
    Scan constantly for people, objects, and other
    boats. Be alert for conditions that limit your
    visibility or block your vision of others.
    Operate defensively at safe speeds and keep
    a safe distance away from people, objects,
    and other boats.
    Do not follow directly behind other boats or
    waterskiers.
    ZMU06025
    U6BV10E0.book  Page 2  Friday, July 17, 2009  2:29 PM 
    						
    							Safety information
    3
    Avoid sharp turns or other maneuvers that
    make it hard for others to avoid you or un-
    derstand where you are going.
    Avoid areas with submerged objects or
    shallow water.
    Ride within your limits and avoid aggressive
    maneuvers to reduce the risk of loss of con-
    trol, ejection, and collision.
    Take early action to avoid collisions. Re-
    member, boats do not have brakes, and
    stopping the engine or reducing throttle can
    reduce the ability to steer. If you are not
    sure that you can stop in time before hitting
    an obstacle, apply throttle and turn in anoth-
    er direction.
    EMU33790Weather
    Stay informed about the weather. Check
    weather forecasts before boating. Avoid boat-
    ing in hazardous weather.
    EMU33800Accident reporting
    Boat operators are required by law to file a
    Boating Accident Report with their state boat-
    ing law enforcement agency if their boat is in-
    volved in any of the following accidents:
    1. There is loss of life or probable loss of life.
    2. There is personal injury that requires
    medical attention beyond first aid.
    3. There is property damage to boats or oth-
    er property over a certain amount.
    4. There is complete loss of a boat.
    Contact local law enforcement personnel if a
    report is necessary.
    EMU33870Boat education and training
    Operators should take a boating safety
    course. This may be required in your state.
    Many of the organizations listed in the next
    section can provide information about cours-
    es in your area.You may also want to consider an Internet-
    based program for basic boater education.
    The Online Boating Safety Course provided
    by the BoatU.S. Foundation, is approved by
    the National Association of State Boating Law
    Administrators (NASBLA) and recognized by
    the United States Coast Guard. Most, but not
    all, states accept this course to meet their
    minimum requirements. While it cannot re-
    place an in-depth course such as one offered
    by the U.S. Coast Guard, U.S. Power Squad-
    ron, or other organization, this online course
    does provide a general overview of the basics
    in boating safety, requirements, navigation,
    and operation. Upon successful completion of
    the course, the user can download a certifi-
    cate of completion immediately or, for a small
    charge, request one by mail. To take this free
    course, go to boatus.org.
    EMU33880Passenger training
    Make sure at least one other passenger is
    trained to operate the boat in the event of an
    emergency.
    EMU33890Boating safety publications
    Be informed about boating safety. Additional
    publications and information can be obtained
    from many boating organizations.
    EMU33590Laws and regulations
    Know the marine laws and regulations where
    you will be boating- and obey them. Several
    sets of rules prevail according to geographic
    location, but all are basically the same as the
    International Rules of the Road. The rules
    presented in the following section are con-
    densed- and have been provided for your
    convenience only.
    U6BV10E0.book  Page 3  Friday, July 17, 2009  2:29 PM 
    						
    							Safety information
    4
    Contact the U.S. Coast Guard, the National
    Association of State Boating Law Administra-
    tors, or your local Power Squadron for a com-
    plete set of rules governing the waters in
    which you will be using your boat.
    EMU33682
    Boating organizations
    The following organizations provide boating
    safety training and information about boating
    safety and laws. 
    United States Coast Guard
    Consumer Affairs Staff (G-BC)
    Office of Boating, Public, and Consumer Af-
    fairs
    U.S. Coast Guard Headquarters
    Washington, D.C. 20593-0001
    http://www.uscgboating.org/ 
    United States Power Squadrons
    1-888-FOR-USPS (1-888-367-8777)
    http://www.usps.org/ 
    Boat Owners Association of The United
    States
    1-800-336-BOAT (1-800-336-2628)
    http://www.boatus.com/ 
    National Association of State Boating Law
    Administrators (NASBLA)
    1500 Leestown Road, Suite 330
    Lexington, KY 40511 859-225-9497
    http://www.nasbla.org/ 
    National Marine Manufacturers Associa-
    tion (NMMA)
    200 East Randolph Drive
    Suite 5100
    Chicago, IL 60601
    http://www.nmma.org/ Marine Retailers Association of America
    155 N. Michigan Ave. Chicago,
    IL 60304
    http://www.mraa.com/ 
    EMU33691
    Basic boating rules (Rules of 
    the road)
    Just as there are rules that apply when you
    are driving on streets and highways, there are
    waterway rules that apply when you are driv-
    ing your boat. These rules are used interna-
    tionally. (For U.S.A.: and are also enforced by
    the United States Coast Guard and local
    agencies.) You should be aware of these
    rules, and follow them whenever you encoun-
    ter another vessel on the water.
    EMU33700Steering 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 that
    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 main-
    tain your direction and speed, the other vessel
    will be able to determine how best to avoid
    you. 
    Give-way vessel
    The vessel that 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
    U6BV10E0.book  Page 4  Friday, July 17, 2009  2:29 PM 
    						
    							Safety information
    5
    slow down or change directions briefly and
    pass behind the other vessel. You should al-
    ways 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.
    EMU25521Rules when encountering vessels
    There are three main situations that you may
    encounter with other vessels which could lead
    to a collision unless the Steering Rules are fol-
    lowed:
    Meeting: (you are approaching another ves-
    sel head-on)
    Crossing: (you are traveling across the other
    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 shaded
    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 col-
    lision, neither of you has the right-of-way Both
    of you should alter course to avoid an acci-
    dent. You should keep the other vessel on
    your port (left) side. This rule doesn’t apply if
    both of you will clear one another if you con-
    tinue 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 other 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 direction, provid-
    ed the other vessel gives you the right-of-way
    as it should.
    U6BV10E0.book  Page 5  Friday, July 17, 2009  2:29 PM 
    						
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