Carb ID

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  • rputney01
    #1

    Carb ID

    Can anyone tell from this pic if these are BS34SS carbs? Supposedly, they came off an '80 1000G.

    Thanks.
    Tags: None
    • almarconi
      #2
      The choke linkage looks the same as the mikuni carbs on my 1980 GS750L, which are BS32's. It is very possible, do you have any more pictures?

        Comment

        • Steve
          GS Whisperer
          • Jun 2005
          • 35925
          • southwest oHIo
          #3
          Can't go by just the choke linkage, need a better measurement on the throat.

          Can't tell if the left edge of the ruler is at the edge of the throat, and can't read the right side too well, either.

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            • rputney01
              #4
              Originally posted by almarconi
              The choke linkage looks the same as the mikuni carbs on my 1980 GS750L, which are BS32's. It is very possible, do you have any more pictures?
              This is the only other one I have. It doesn't really show the linkage very well. Does this help?

                Comment

                • almarconi
                  #5
                  They are definitely mikunis. They didn't come from a 1980 750 because notice that the intake manifold has an o-ring (750's don't use o-rings). Could be an 850 or 1000, you would need to measure the intake's to be sure.

                    Comment

                    • Guest
                      #6
                      Yup, Mikuni 34mm carbs.

                        Comment

                        • TheCafeKid
                          #7
                          Originally posted by chef1366
                          Yup, Mikuni 34mm carbs.
                          Yup..off a 1000E/G/L or 1100G/L with those intake boots. These WILL NOT bolt up to a 16v 1100 motor without some jetting changes. I do believe the 8V 34s used larger mains, pilots and air correctors. These would all need to be changed out. You might double check the needle type as well.. they may have been different.

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                            • rputney01
                              #8
                              Originally posted by TheCafeKid
                              Yup..off a 1000E/G/L or 1100G/L with those intake boots. These WILL NOT bolt up to a 16v 1100 motor without some jetting changes. I do believe the 8V 34s used larger mains, pilots and air correctors. These would all need to be changed out. You might double check the needle type as well.. they may have been different.
                              Thanks guys. By inference then, they would fit a stock 1000S? Would the performance be significantly better/worse than 29mm smoothbores?

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