Question…what was the last production model opposed twin?

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  • May 22, 2017 at 4:34 am #58136
    hotrod
    Participant

      The last American opposed twin outboard motor may be the Lauson twin from 1956.

      May 22, 2017 at 10:32 am #58139
      kees
      Participant

        International Member - 2 Years
        quote westwind:

        quote kees:

        quote westwind:

        I believe Honda made an opposed twin up to about 1970? I’d like to find one….I don’t think they were imported to North America.

        I don’t know,
        The first GB-30 and the later GB-40 are from the 60ties
        and the models from the 70ties, B-75 and B-100
        are no opposed twins
        😉
        or do I miss a model ? don’t think so at this moment.
        .

        I gather it’s a B45 opposed twin according to the attachment. It’s after the GB models and before the parallel twins.

        .

        Yep, I bend and surrender 😮
        Good catch, didn’t know about its existence
        was available in 1971 together with the B-75
        it was very hard to pick some info from the net, I guess that the B-75 was much more popular then the B-45.
        .

        May 22, 2017 at 11:23 am #58142
        westwind
        Participant

          Canada Member

          Yep, I bend and surrender 😮
          Good catch, didn’t know about its existence
          was available in 1971 together with the B-75
          it was very hard to pick some info from the net, I guess that the B-75 was much more popular then the B-45.
          .[/quote]

          OK, now for my suspicion, was the B45 opposed twin 2 stroke? I don’t see anything that looks like valves in the pictures.

          May 22, 2017 at 12:08 pm #58143
          kees
          Participant

            International Member - 2 Years

            .
            It is a 4-stroke
            see the article I found about the history and 50 year anniversary of Honda
            the yellow marked text say 4-stroke
            not my language but with the translation tool on Google it worked to understand
            .

            May 22, 2017 at 3:25 pm #58153
            westwind
            Participant

              Canada Member

              I think you are right that the opposed twin Honda is 4 stroke, I found this too, searching for the 50th Anniversary. It must have a flat head with valves in the block I guess. Honda typically used overhead valves or overhead cam but the pictures of the opposed twin don’t really show that. The red 7.5 looks interesting too.

              Attachments:

              May 23, 2017 at 11:31 pm #58217
              mas
              Participant

                US Member - 2 Years

                OK Guys…I think that about solves it?!

                Great job,

                Mas

                May 25, 2017 at 9:36 pm #58323
                kees
                Participant

                  International Member - 2 Years
                  quote westwind:

                  I believe Honda made an opposed twin up to about 1970? I’d like to find one….I don’t think they were imported to North America.

                  for your info
                  see topic;

                  viewtopic.php?f=6&t=12279

                  or

                  https://vancouver.craigslist.ca/van/bpo/6129840060.html
                  .
                  .

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