2007 mercury optimax 150 probl

Discussion in 'Outboards' started by rovi, Apr 7, 2017.

  1. rovi
    Joined: Jul 2011
    Posts: 59
    Likes: 0, Points: 6, Legacy Rep: 10
    Location: ANTIGUA & BARBUDA

    rovi Junior Member

    Hi all, I have a new issue with optimax 150. Was working quite well then it immediately stopped idling. The air and fuel injectors seem to be pulsing properly but three spark plugs have heavy soot or carbon deposits on them after every attempt to start the engine. The plug positions are 1 3 and 4; I would really an understanding of what's the cause and the solution to this problem. Thanks and I'm anticipating some help.
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