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  1. K

    18 Hp Mercury Carb is Flooding

    I have an 18hp Mercury that I believe is flooding. Clened and rebuilt the carb with a new diaphragm and gasket set, put new plugs in it and it still ran like it is flooded. pinched of the hose going to the carb at full throttle and after 10 seconds or so it will rev at high speed for about 4...
  2. K

    1983 Mercury 18hp runs rough, no power

    Mercury 18hp. The motor was given to me, I have know idea how long it has sat. started it and seemed to run a little rough. Thought if I took it out on the lake, maybe it would de-gunk the carb on its own. after running it for a few hours it still ran rough. tore down the carb and was...
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