1925 Elto carburetor

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  • March 1, 2017 at 4:20 pm #53685
    jimross
    Participant

      OK, I do remember having a "D" with this type of top but it did have the small spring rivited thru the top. An Early Elto parts book does list a complete carb change at SN 20,000 and a part change at SN 20200 and the description of parts match up so this must be it . But no mention of the ball bearing."C" &"D" SN’s run from 12000-30000. Jim Ross.

      March 1, 2017 at 4:46 pm #53686
      The Boat House
      Participant

        And mine is like yours Tubs[/color][/size][/quote]

        quote Richard A. White:

        quote Tubs:

        That is a typo, should extend to 29,999. Mine is serial # 23336

        March 1, 2017 at 9:07 pm #53696
        hotrod
        Participant

          After this discussion, I’ve decided to remove the metal ball since it apparently doesn’t belong in there. Also, if the cover is removed while on the motor, the ball will drop out – ending up inside the carb and then inside the powerhead. Thanks all.

          March 2, 2017 at 8:02 pm #53720
          garry-in-michigan
          Participant

            Lifetime Member

            29,999 for 1925 makes sense since 1926 starts with 30,000. At that time Johnson had built 30,560 outboards. . . 😉

            March 2, 2017 at 8:41 pm #53723
            wbeaton
            Participant

              Canada Member - 2 Years

              This discussion answers a few of the questions I had. One question still outstanding is in regard to the lever on top of the early model C carb. Is there a procedure for the initial setting of the lever and where it should bottom out? I started to dismantle mine before I realized how it worked. Now I don’t know where the initial setting should be.

              Wayne
              Upper Canada Chapter

              uccaomci.com

              March 3, 2017 at 2:09 am #53741
              The Boat House
              Participant

                When you have nothing to go by your best
                bet is to start in the middle. My experience
                with poppet valve motors that when the poppet
                valve is opening too much they seem to run
                rich but leaning out the fuel mix doesn’t help.
                When the valve isn’t opening enough the
                motor won’t rev up. As it appears the adjuster
                was eliminated on later motors that might
                suggest that there isn’t enough adjustment
                to make a noticeable difference. Those who
                have actually run these may share their
                experience.

                March 3, 2017 at 12:59 pm #53757
                wbeaton
                Participant

                  Canada Member - 2 Years

                  That’s pretty much where I have it set. I was just wondering if there was an "official" setting.

                  Wayne
                  Upper Canada Chapter

                  uccaomci.com

                  March 4, 2017 at 1:49 am #53787
                  garry-in-michigan
                  Participant

                    Lifetime Member

                    I have been unable to find an "official" setting, but did find this in a 1950s service manual. The Elto Ligtwin was 5.4 horse power opposed twin. I would think the Lightwin setting would be close. . . 😕

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