Engine swap

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  • Devonboxer
    • Feb 2026
    #1

    Engine swap

    Hi I'm looking for some advice I have a 1979 gs750g shaft drive and I have a chance of an 1983 gs1000 shaft drive engine would this be a straight forward swap

    Many thanks
    Tags: None
    • sharpy
      #2
      Since the 750 is rarer why not keep that engine?

        Comment

        • Devonboxer
          #3
          I'm looking for more power

            Comment

            • GS1150Pilot
              Forum LongTimer
              Past Site Supporter
              • Nov 2013
              • 18917
              • MoN, AZ
              #4
              Why not sell the rare bike and buy a bigger one?
              "Thought he, it is a wicked world in all meridians; I'll die a pagan."
              ~Herman Melville

              2016 1200 Superlow
              1982 CB900f

                Comment

                • JTGS850GL
                  Forum Guru
                  Past Site Supporter
                  • Aug 2013
                  • 9735
                  • GA
                  #5
                  Actually I didn't know they made a 750G. Are you sure it's not a 79 850G? Maybe a non US thing.
                  http://img633.imageshack.us/img633/811/douMvs.jpg
                  1980 GS1000GT (Daily rider with a 1983 1100G engine)
                  1998 Honda ST1100 (Daily long distance rider)
                  1982 GS850GLZ (Daily rider when the weather is crap)

                  Darn, with so many daily riders it's hard to decide which one to jump on next.;)

                  JTGS850GL aka Julius

                  GS Resource Greetings

                    Comment

                    • hampshirehog
                      Forum LongTimer
                      Past Site Supporter
                      • Oct 2007
                      • 12675
                      • Hampshire. UK
                      #6
                      The 750G was a Japan home market thing. Same as an 850 just missing a few cc and to do with licence restrictions I believe.
                      79 GS1000S
                      79 GS1000S (another one)
                      80 GSX750
                      80 GS550
                      80 CB650 cafe racer
                      75 PC50 - the one with OHV and pedals...
                      75 TS100 - being ridden (suicidally) by my father

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                        • JTGS850GL
                          Forum Guru
                          Past Site Supporter
                          • Aug 2013
                          • 9735
                          • GA
                          #7
                          Originally posted by hampshirehog
                          The 750G was a Japan home market thing. Same as an 850 just missing a few cc and to do with licence restrictions I believe.
                          In that case the 1000G, or even an 1100G, engine will swap right in. You will need to pick up a 1000G/1100G drive shaft since the flange is different between the early 850G and the later 82 on 850G.
                          http://img633.imageshack.us/img633/811/douMvs.jpg
                          1980 GS1000GT (Daily rider with a 1983 1100G engine)
                          1998 Honda ST1100 (Daily long distance rider)
                          1982 GS850GLZ (Daily rider when the weather is crap)

                          Darn, with so many daily riders it's hard to decide which one to jump on next.;)

                          JTGS850GL aka Julius

                          GS Resource Greetings

                            Comment

                            • Devonboxer
                              #8
                              IMG_20160722_065637.jpg this is my 750g

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