Help! Stripped Mixture Screw Hole

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  • EmmCee
    Forum Apprentice
    • Jan 2025
    • 33
    • Ventura, CA
    #1

    Help! Stripped Mixture Screw Hole

    I messed up big time. Stripped the threads in the carb body for the mixture screw. Had to drill them out originally, and I think I clipped them a bit the first time. Was just installing new screws and it just completely stripped. Barely seated it then when I pulled the screwdriver off, the spring just popped it back out.

    Anyone have a line on where to find a M5x0.5 helicoil? Or a couple BS32SS carb bodies?
    Tags: None
    • SamLack99
      Forum Mentor
      Past Site Supporter
      Super Site Supporter
      • May 2023
      • 104
      • Dawlish, Devon, UK
      #2
      As I learn how to get Suzy back on the road - I've made a few errors - I have also discovered that eBay and Facebook Marketplace are my friends (not to mention CMSNL).

      For example, there is a Mikuni BS32SS carb body for sale here.

      But keep in mind, searching on these platforms can require patience, but perseverance usually pays off.

      The question is, have the threads gone in all of the carb bodies...

      ...Or just - say for example - Carb Body #1?

      The carb bodies are different depending on what attachments and connections they have.

      Good luck.

        Comment

        • Big T
          Forum LongTimer
          Past Site Supporter
          Super Site Supporter
          • Mar 2005
          • 12423
          • West Slope, OR
          #3
          The carb bodies are specific to their position.

          You can't swap them around
          1978 GS 1000 (since new)
          1979 GS 1000 (The Fridge, superbike replica project)
          1978 GS 1000 (parts)
          1981 GS 850 (anyone want a project?)
          1981 GPZ 550 (backroad screamer)
          1970 450 Mk IIID (THUMP!)
          2007 DRz 400S
          1999 ATK 490ES
          1994 DR 350SES

            Comment

            • EmmCee
              Forum Apprentice
              • Jan 2025
              • 33
              • Ventura, CA
              #4
              Originally posted by SamLack99
              As I learn how to get Suzy back on the road - I've made a few errors - I have also discovered that eBay and Facebook Marketplace are my friends (not to mention CMSNL).

              For example, there is a Mikuni BS32SS carb body for sale here.

              But keep in mind, searching on these platforms can require patience, but perseverance usually pays off.

              The question is, have the threads gone in all of the carb bodies...

              ...Or just - say for example - Carb Body #1?

              The carb bodies are different depending on what attachments and connections they have.

              Good luck.
              The only one that's completely FUBAR is the one (if you're sitting on the bike) all the way to the right.

              And yeah I've considered ebay, but I've had more bad experiences than good when it comes to auto parts there. Honestly I was hoping someone here had one they would be willing to part with. At least here i feel like they would know what they're talking about and I wouldn't get a totally wrong part lol

                Comment

                • SamLack99
                  Forum Mentor
                  Past Site Supporter
                  Super Site Supporter
                  • May 2023
                  • 104
                  • Dawlish, Devon, UK
                  #5
                  Carb 4 - And yes, as someone who currently seems to be collecting every split diaphragm on eBay, getting bike parts is a gamble.

                  I don't have any spares.

                  Half the fun/pain (?) of old motorcycles is finding replacement parts.

                  Good luck.

                    Comment

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