Reply To: RD-17 bottom plug fouling – no high speed power

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July 27, 2020 at 4:40 pm #210062
GARY SANDBERG
Participant

    US Member

    I had this problem with my Mercury Mark 20. I converted from a Bendix to a Phelon ignition system. Did not fix the problem of the bottom cylinder flooding out badly. Turned out to be a hole in the fuel pump diaphragm. If you are using a fuel pump and not a pressurized fuel tank, it is a easy inspection.