Problems with my 15 horse evirude.. made in the '80s

Discussion in 'Outboards' started by Jake29, Sep 16, 2008.

  1. Jake29
    Joined: Sep 2008
    Posts: 5
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    Location: Denton

    Jake29 Junior Member

    My motor wont run 100%. I've checked the carb. and it wasnt the problem. The spark plugs are good. Sometimes ill be going full throttle and its running about 25% of what it usally does, and it'll just kick up and run 100% percent. Then it will bog down again and go 25%. Suggestions anyone?
     
    Jake29, Sep 16, 2008
    #1
  2. Jake29
    Joined: Sep 2008
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    Location: Denton

    Jake29 Junior Member

    nothing?
     
    Jake29, Sep 17, 2008
    #2
  3. kenJ
    Joined: Jul 2005
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    Location: Williamsburg, VA

    kenJ Senior Member

    If you have an external tank, check the fuel hose connector and the rest of the fuel hose connections. Sounds like you might be sucking some air causing a loss of fuel flow.
     
    kenJ, Sep 17, 2008
    #3
  4. Jake29
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    Jake29 Junior Member

    ok thanks...how can i tighten the connection on the motor?
     
    Jake29, Sep 17, 2008
    #4
  5. kenJ
    Joined: Jul 2005
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    Location: Williamsburg, VA

    kenJ Senior Member

    Leaks

    Check the condition of the hose and the ball. Any cracks replace it. If it is good shape make sure the hose clamps/connectors are tight. Try to recrimp any band type clamps. If you determine the connection at the motor is bad, due to it's age you might not be able to just buy the female connector. If that is the case, just replace both halves.
     
    kenJ, Sep 17, 2008
    #5
  6. Jake29
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    Jake29 Junior Member

    oh and the pressure bulb stays firm?
     
    Jake29, Sep 17, 2008
    #6
  7. TeddyDiver
    Joined: Dec 2007
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    Location: Finland/Norway

    TeddyDiver Gollywobbler

    Easy way to test leaks with external tanks is to lift the tank a bit higher than the carborator to see if it changes anything...
     
    TeddyDiver, Sep 17, 2008
    #7

  9. Jake29
    Joined: Sep 2008
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    Location: Denton

    Jake29 Junior Member

    thanks guy... ill test it out
     
    Jake29, Sep 17, 2008
    #8
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