different carb bowls?

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  • snyderman
    • Feb 2026

    #1

    different carb bowls?

    I am rebuilding the carbs on my 78 gs750 and 2 of my carb bowls have a built in rubber ring around the threads for the bowl plug. The third bowl does not have any rubber, but it doesn't look like it ever did. I have not tore into the fourth yet. Is this OK?
  • chuck hahn
    Forum LongTimer
    Past Site Supporter
    • May 2009
    • 25918
    • Norman, Oklahoma

    #2
    Supposed to have a oring seal on all 4.
    MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
    1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

    NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


    I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

    Comment

    • chuck hahn
      Forum LongTimer
      Past Site Supporter
      • May 2009
      • 25918
      • Norman, Oklahoma

      #3
      See number 10 here...http://www.boulevardsuzuki.com/fiche...1977&fveh=2133
      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

      Comment

      • snyderman

        #4
        The plugs themselves have an oring that I am replacing, but this is part of the bowl itself. it does not look like anything that I could remove or replace. Also, I found a set of four carbs on Craig's list that were apart, but none of them have this rubber seal built into the bowl either.

        Comment

        • chuck hahn
          Forum LongTimer
          Past Site Supporter
          • May 2009
          • 25918
          • Norman, Oklahoma

          #5
          Shoot a pic. of each setup,, that will help
          MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
          1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

          NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


          I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

          Comment

          • chuck hahn
            Forum LongTimer
            Past Site Supporter
            • May 2009
            • 25918
            • Norman, Oklahoma

            #6
            Other than that detail, are they otherwise all the same style bowls?? Maybe a few are from a later year with reengineered seals???
            MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
            1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

            NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


            I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

            Comment

            • rustybronco
              Forum LongTimer
              Bard Award Winner
              GSResource Superstar
              Past Site Supporter
              • Jul 2005
              • 14961
              • Marysville, Michigan

              #7
              That seal is not part of the float bowl, it is a separate o-ring as Chuck has linked to you the details of it.
              De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

              http://www.thegsresources.com/_forum...35#post1625535

              Comment

              • chuck hahn
                Forum LongTimer
                Past Site Supporter
                • May 2009
                • 25918
                • Norman, Oklahoma

                #8
                Thats why i asked for pics..his description has me a bit confused as well.
                MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                Comment

                • rustybronco
                  Forum LongTimer
                  Bard Award Winner
                  GSResource Superstar
                  Past Site Supporter
                  • Jul 2005
                  • 14961
                  • Marysville, Michigan

                  #9
                  It's always possible someone has modified the float bowl to accept a different seal, VERY unlikely, but still possible. A more likely scenario is someone might have glued it to the bowl.
                  De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

                  http://www.thegsresources.com/_forum...35#post1625535

                  Comment

                  • chuck hahn
                    Forum LongTimer
                    Past Site Supporter
                    • May 2009
                    • 25918
                    • Norman, Oklahoma

                    #10
                    Like the song goes..Every picture tells a story...dont it.
                    MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                    1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                    NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                    I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                    Comment

                    • snyderman

                      #11
                      I will try to get pics tonight and post tomorrow. It seemed odd to me that this seal was there. It is not the bowl plug seal. They were there too. Because of these mystery seals I did not dip my bowls for fear of ruining these seals. Oh well, hopefully the pics will help.

                      Thanks for the info so far.

                      Comment

                      • chuck hahn
                        Forum LongTimer
                        Past Site Supporter
                        • May 2009
                        • 25918
                        • Norman, Oklahoma

                        #12
                        Got my curiosity up for sure.
                        MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                        1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                        NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                        I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                        Comment

                        • snyderman

                          #13
                          Mystery Solved!

                          The mystery is solved! Once I knew that the rubber seal was not supposed to be there, I pryed on it a bit and it came out. It appears to be an old oring that was smashed into the depression in the bowl. Because this was the first bowl I took apart it looked like it belonged there.

                          Thanks guys for your help!

                          Comment

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