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  1. C

    SEA FOAM "ENGINE TUNE"

    Please give your input(s) on using this as outlined sept 14, 2003 re: "do it yourself engine tip; a simple and cost effective way to de carbon an outboard" using seafoam engine tune.<br /> I just purchased a 1971 mercury o/b 20 hp that is running fine and wanted advice about running this...
  2. C

    SEA FOAM "ENGINE TUNE"

    Please give your input(s) on using this as outlined sept 14, 2003 re: "do it yourself engine tip; a simple and cost effective way to de carbon an outboard" using seafoam engine tune.<br /> I just purchased a 1971 mercury o/b 20 hp that is running fine and wanted advice about running this...
  3. C

    Mercury 200 (20 hp) outboard oil/gas premix

    Just purchased Mercury 200 (20 hp) outboard on a 1957 cadillac aluminum boat, would like to know what Mercury recommends for the oil/gas premix ratio and oil (obviously this is an older engine and the oils and gas have changed considerably)...the previous owner did not have owners manual and was...
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