Help with mounting the octopus to the carbs

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  • OldGreyBeast
    XSive
    • Mar 2024
    • 92
    • Florence, AL, USA

    #1

    Help with mounting the octopus to the carbs

    Does anyone have any pictures of how the Octopus is mounted to the carbs? I've tried scouring ebay and whatnot but all the pictures are obscured by the hoses or just at bad angles. I know it goes on top of the carbs somehow but the screw holes don't seem to line up.

  • jkorn
    Truly XSive
    • May 2003
    • 188
    • Wickenburg AZ

    #2
    Octopus. What’s that? My 79 does not have one.
    Jeff Korn
    Original Owner 79XS1100 E
    Yamaha Warrior has come and gone

    Comment

    • OldGreyBeast
      XSive
      • Mar 2024
      • 92
      • Florence, AL, USA

      #3
      It's unique to the special edition I believe. Some sort of vacuum fuel shutoff thingy or some such. I know a lot of people delete them but I'd like to set this bike up as it was originally intended.

      This is a 1979 Special btw.

      Comment

      • DiverRay
        Moderator
        • Nov 2004
        • 7795
        • Star, IDAHO

        #4
        Let me try this. It's a MNS carb set, stock, with the octy in the stock location. Click image for larger version  Name:	Carb2r.JPG Views:	0 Size:	142.1 KB ID:	880341 Click image for larger version  Name:	Carb3r.JPG Views:	0 Size:	131.3 KB ID:	880342Note that the MNS has the mount bracket for the octy! The Specials have one of the three brackets for the carbs that does have the mount position on it.
        Last edited by DiverRay; 06-21-2024, 01:02 PM.
        Ray Matteis
        KE6NHG
        XS1100 E '78 (winter project)
        XS1100 SF Bob Jones worked on it!

        Comment

        • OldGreyBeast
          XSive
          • Mar 2024
          • 92
          • Florence, AL, USA

          #5
          PERFECT! Thanks so much! I actually have one of those curved brackets in a random parts batch I got off eBay! Didn't even think about using that.

          Comment

          • jkorn
            Truly XSive
            • May 2003
            • 188
            • Wickenburg AZ

            #6
            On the standard 1100s there is a vacuum shut off on each side of the fuel tank which only allows fuel when there’s vacuum so there’s an on prime and reserve position.
            Jeff Korn
            Original Owner 79XS1100 E
            Yamaha Warrior has come and gone

            Comment

            • DEEBS11
              XS-XJ Guru
              • Feb 2023
              • 1980
              • Connecticut

              #7
              You will need this bracket as shown in Rays picture.

              https://www.ebay.com/itm/27646429388...Condition=3000


              Click image for larger version

Name:	ezgif-3-375e4e74fb.jpg
Views:	107
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ID:	880347

              Comment

              • DEEBS11
                XS-XJ Guru
                • Feb 2023
                • 1980
                • Connecticut

                #8
                Click image for larger version

Name:	ezgif-2-f9f09f8c6e.jpg
Views:	109
Size:	189.1 KB
ID:	880349

                Comment

                • OldGreyBeast
                  XSive
                  • Mar 2024
                  • 92
                  • Florence, AL, USA

                  #9
                  Ah yeah the bracket I had was just another throttle cable holder. Thanks for the eBay link, I ordered that bracket, all I have left to do with the carbs now is weld on a choke lever, then they can go back on the bike!

                  Comment

                  • DEEBS11
                    XS-XJ Guru
                    • Feb 2023
                    • 1980
                    • Connecticut

                    #10
                    Not sure if this will fit your carbs.

                    https://www.ebay.com/itm/32475922227...Bk9SR_ryjMOIZA



                    Click image for larger version

Name:	ezgif-7-892ced89a0.jpg
Views:	101
Size:	166.9 KB
ID:	880371

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                    • OldGreyBeast
                      XSive
                      • Mar 2024
                      • 92
                      • Florence, AL, USA

                      #11
                      It looks the same, but I can weld up my broken one for free :P

                      Comment

                      • DEEBS11
                        XS-XJ Guru
                        • Feb 2023
                        • 1980
                        • Connecticut

                        #12
                        Free is good.

                        Comment

                        • DiverRay
                          Moderator
                          • Nov 2004
                          • 7795
                          • Star, IDAHO

                          #13
                          Like me? "I have a TIG welder and I'm not afraid to use it!"
                          Ray Matteis
                          KE6NHG
                          XS1100 E '78 (winter project)
                          XS1100 SF Bob Jones worked on it!

                          Comment

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