Home Forum Ask A Member Koban inboard motor

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  • #7300
    eltoquad
    Participant

      US Member

      I’m looking for info on a Koban inboard motor I’ve acquired. I’ve found one photo ad from the mid teens but that’s all. Anyone have one of these motors or some literature?
      Thanks,
      Tom

      #59498
      PugetSoundBoater
      Participant

        i have no info ,if you could post a photo,that may aid in identifying your Koban.

        "Some people want to know how a watch works, others just want to know what time it is"
        Robbie Robertson

        #59516
        kees
        Participant

          International Member

          .
          there is probably not much, I guess
          found one picture of an inboard in Arlan Carter’s "the American Rowboat Motor" book.
          3 hp made from 1916 – early 1920 ‘s
          if the serial nr. is also on the circular plate at the top of the crankcase, you can figure out
          from what year your motor is.

          😉

          #59518
          George Emmanuel
          Participant

            US MEMBER PAY BY CHECK

            Tom asked me to post this picture as he was having difficulty doing so.

            George


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            #59521
            Buccaneer
            Participant

              US Member

              Interesting contraption! Is that a huge magneto
              atop of the gear box?

              Prepare to be boarded!

              #59526
              eltoquad
              Participant

                US Member

                That is a motor/generator. Unit could be run by battery by dis-engaging the clutch. I suppose Koban motor could be started by using the electric motor also. Koban power head could also charge the batteries used for running the electric motor while also powering the boat. I have seen advertisement photos of the regular "Koban Inboard" but nothing on this unit. It might be a one of a kind or maybe a few were made for an amusement park or ??

                #59528
                kees
                Participant

                  International Member

                  .
                  hmm, does that carburetor work in that position ?
                  is it not a home made "one of a kind" built
                  of an original outboard powerhead ?
                  I am curious, which well informed person has the solution here ?
                  .
                  .

                  #59542
                  Mumbles
                  Participant

                    A work in progress…


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                    #59547
                    eltoquad
                    Participant

                      US Member

                      My motor is a little later model with center mounted carb. I believe the mixer (carb) would work just fine as mounted. It even has a throttle between mixer and crankcase which doesn’t show well in photo. Don’t believe it’s home made as there are several nice castings, one of which is part of the lower crankcase housing. Water pump is some kinda of centrifugal pump mounted on unseen side of the aluminum casting. Upper crankcase flange has no serial stamped into it or even a "flat" to stamp it on.

                      #59596
                      joesnuffy
                      Participant

                        I found this on internet. Has some good pics and shows the gauges , controls, prop etc. That is a neat engine for sure. I’m guessing you would have reverse by reversing polarity which would be good for docking.

                        Joe

                        http://www.oldmarineengine.com/discus/m … /1/55.html

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