motor sputtering or missing - Page 2
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  1. #11
    Senior Member
    Join Date
    Oct 2006
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    High Gabriel West 78641
    Posts
    1,451

    Re: motor sputtering or missing

    Sounds like the problem I had a few years back with my '99 115 Johnson. It was the power pack.
    It would start and idle fine, just wouldn't get me on plane. (I had tackle boxes floating in the boat, on the way in from the big jetties at POC, due to waves coming over the stern of my Promaster 185.)
    If you need one, shop around on the internet. I saved major bucks this way. It only takes about 30 minutes for a rookie, (myself), to install.
    PM me if you need more info.
    A hot bite=> and a cold Lone Star......Nothing better!

  2. #12
    Dez
    Dez is offline
    Senior Member
    Join Date
    Feb 2009
    Posts
    9,991

    Re: motor sputtering or missing

    If you're still havin trouble call Bob Walden at 521 630-5952. He's really good with those motors and great to deal with...




  3. #13
    Junior Member
    Join Date
    Mar 2010
    Posts
    18

    Re: motor sputtering or missing

    hmm, i was just about to put some fuel cleaner in & change the filter & head out to travis......well, I have to ask, is there an easy way to unstick it? ;D

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  5. #14
    Dez
    Dez is offline
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    Feb 2009
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    Re: motor sputtering or missing

    Don't put harsh fuel system cleaner in or on your Johnson..




  6. #15
    Dez
    Dez is offline
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    Feb 2009
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    Re: motor sputtering or missing

    Seriously it can damage you pump. Use Marvel Mystery Oil or Rude cleaner like R77 mentioned.




  7. #16
    Senior Member
    Join Date
    Jan 2008
    Posts
    1,181

    Re: motor sputtering or missing

    +1 on the diaphram in the fuel pump. My boat was sputtering and couldn't get on plane all of a sudden. Seemed like a gas problem, changed the primer bulb cause it wouldn't get hard. Changed fuel filter and sparkplugs and still had problems. Checked the fuel pump and the diaphram was cracked.

  8. #17
    Junior Member
    Join Date
    Mar 2010
    Posts
    18

    Re: motor sputtering or missing

    thanks for the help everyone. I did put an ounce of Mercury Quickleen engine treatment in the gas (guess I won't do that again) & change the fuel filter but no change in the operation. Tapped on the carbs also - it seemed to jump a little when we hit the bottom one. Thoughts on carb cleaner or is it time to bring in the calvary & call mobile mercman? I think removing the carbs or taking the fuel pump off is out of my league.
    Thanks again for the help

  9. #18
    Junior Member
    Join Date
    Mar 2010
    Posts
    18

    Re: motor sputtering or missing

    it ended up being the power pack. thanks again for the help.

 

 
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