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    #1

    air screw broke in carb body

    I am rebuilding my carbs and on one of them the air screw broke off just below the threads and the rest is stuck in the carb body. I had it run through an ultrasonic cleaner hopping that would loosen it and it would come out,no luck.
    Does anybody have a solution or has run into this?
    I do have a line on another bank of carbs off a friends parts bike but would like to save this one if I can.
    Thanks
    Tags: None
    #2
    http://members.dslextreme.com/users/cbsaunders/gs/pilot_screw_removal.pdf


    On Cv carbs, remove the puck that they put in to plug the access hole the manufacturer made to drill the hole.
    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

      #3
      If you have an "air screw", that means you have VM carbs on a '79 or older bike. Not sure what it would take to get that screw out.

      If you have an '80 or newer bike (or a twin), you don't have "air screws", you have "MIXTURE screws" (more-properly called 'pilot' screws).

      I have seen some of these stuck in the threads, but never broken below them.

      Please identify the carbs, and also which one you need, as they are position-specific.

      .
      sigpic
      mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
      hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
      #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
      #2 son: 1980 GS1000G
      Family Portrait
      Siblings and Spouses
      Mom's first ride
      Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
      (Click on my username in the upper-left corner for e-mail info.)

      Comment

        #4
        The number on the side of the carb is 45170 , the reply with the link is workable if I remove the puck behind the butterfly valve in the throat of the carb.

        Comment

          #5
          Page 10 of the carb cleanup series shows exactly what I have, that is why I called it an air screw.

          Comment

            #6
            A butterfly and an air screw on the same carb? What is this some kind of Honda or something?
            http://img.photobucket.com/albums/v5...tatesMap-1.jpg

            Life is too short to ride an L.

            Comment

              #7
              My bad terminology, not butterfly but throttle plate.

              Comment

                #8
                We need to know what model/year the bike is. If it's a 1980 or newer bike I may have a replacement carb body for you.
                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

                  #9
                  Instead of muddling through all the technical terms, just tell us what bike you have.

                  Any further attempts at help will be useless until we know what bike we are talking about.

                  .
                  sigpic
                  mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
                  hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
                  #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
                  #2 son: 1980 GS1000G
                  Family Portrait
                  Siblings and Spouses
                  Mom's first ride
                  Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
                  (Click on my username in the upper-left corner for e-mail info.)

                  Comment

                    #10
                    The bike is a 1982 850 GL

                    Comment

                      #11
                      The ultrasonic did not work and it tums out the carbs my friend has are off a 1979 so the y won't work, again thanks for all the help guys sorry about posting the wrong info

                      Comment

                        #12
                        Sometimes the tips can be felt thru the hole if you run your finger down the bores. If you can feel the tips take something and press them back in and see if that helps pop them out. That and the fine tip of the home made removal tool may be the magic mix.
                        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

                          #13
                          yep, tried that,no joy, the guy who did the ultrasonic dip (very experienced guy) tried too but no luck. I am afraid this one is toast. I think these carbs were also used on some other bikes of the same vintage/ 550 or 650 ?

                          Comment

                            #14
                            Measure the bore at the engine side....should be 32 or 34 MM. Then get then corresponding carb in that bore size. Carbs are referred to as 1, 2 ,3 or 4. #1 being the carb to the left as you are setting on the bike.
                            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

                              #15
                              The carbs are 32 mm and it is the #2 carb that is the problem

                              Comment

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