Johnson 70HP black motor

Discussion in 'Outboards' started by skypilotgill, Mar 2, 2016.

  1. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    It sounded more to me that there was too much slack in the control cables, and sometimes when you raise the lever on the control box, it does not return properly to the stops on the engine. That can be rectified by taking up that slack with the black plastic adjustment wheels attached to the two control cables after they enter the front of the engine pan. One is for gearshift, the other is the throttle, enough turns will tighten it up so it returns to the idle adjustment stop screw. And I have no idea what a "black" Johnson is !
     
  2. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    My bad, I mis-read Mercury :(
     
  3. skypilotgill
    Joined: Mar 2016
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    Location: Thursday Island

    skypilotgill Junior Member

    I mean by black motor a power tilt trim start I think 2000 70 which has a black grey engine cover
     
  4. Mr Efficiency
    Joined: Oct 2010
    Posts: 10,199
    Likes: 970, Points: 113, Legacy Rep: 702
    Location: Australia

    Mr Efficiency Senior Member

    I am pretty confident your throttle cable had too much slack. But you best get that manual and see what those screws you have been tinkering with are all about, and return them to the standard setting, before using the engine.
     
  5. skypilotgill
    Joined: Mar 2016
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    Location: Thursday Island

    skypilotgill Junior Member

    Tks I will Im so appreciative for all 4 yr help a great service you have here
     

  6. powerabout
    Joined: Nov 2007
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    Location: Melbourne/Singapore/Italy

    powerabout Senior Member

    All omc powerheads went black around 86.
    How about a photo of yours
     
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