Tillitson Carburater Diagram

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  • August 29, 2019 at 10:45 pm #182289
    gemini1
    Participant

      Hello, I looking for a Diagram for a Tillitson Carburater Model MD145A. Can anyone suggest where i might find one. It’s on a 1965? (i’ve been told) Chrysler 5 hp outboard. Thank you, Hector

      August 30, 2019 at 4:56 pm #182310
      garry-in-michigan
      Participant

        Lifetime Member

        This is what I have – An MD was also used on a couple Evinrudes in the late `40s . . .




        August 30, 2019 at 5:20 pm #182316
        garry-in-michigan
        Participant

          Lifetime Member

          On a side note – if you pry the float bowl off with the high speed needle valve in place, the needle will bend and is VERY hard to straighten.The idle needle valve adjusts the AIR in the idle mix. The amount of fuel used at idle is governed by the bypass tube running down through the center of the Venturi. Some idle needle valves have left handed threads and adjust normally. The others turn in to richen the mixture. This bypass tube is different on each model. It is also easily blocked by fuel residue.

          August 30, 2019 at 6:23 pm #182326
          gemini1
          Participant

            Thank you Garry-in-Tampa for your response. The diagram will work for me.I think i removed the idle valve before the bowl came off but not certain. I’ll check the valve for damage. If i need an idle valve are the available anywhere. Thank again for your help. Hector

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