Reply To: 1955 Johnson 5.5 hp converted to single fuel line with pump puking oil or carbon

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April 26, 2026 at 5:03 pm #316561
JACQUES
Participant

    all these motor also have a dump route  to flush accumulated  fuel oil mix pooling inside the crankcase…

    IF  the  purge route/ valve  is blocked,   purge channels blocked  by your mod.to pump     etc… fuel oil  micx piles up in the crankcase especially at idle.

    you need to run wot and the stuff will be ingested back into the cylinders  but keep in mind that when “in ports”  open incoming fuel oil juices  also shoot  out the “exhaust ports” & 30-40%  fuel-oil  gets dumped directly out by  the bad  2 stroke design. at $4G US or 8$cdn it get expensive to be so wasteful.   my  75hp  ETEC burns .6 l of fuel/h trolling 🙂

    A 0.6-liter amount goes into one imperial gallon about 7.6 times so in theory I can troll   at least 7 hours  on 160 oz of fuel.

    for a US gallon 128 oz.. A 0.6-liter amount goes into one U.S. gallon about 6.3 times…..so figure 6 hours  trolling

    I doubt you could troll 6-7 hours with a 5.5 hp    with 1 gallon !!

     

     

     

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