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  • Serious Carb problem

    My issue is that a PO has broken the tips of three of the mixture screws off in the Carb bodies. Hoping against hope I have sprayed them with nearly everything I have in the garage and now I'm trying Marvel Mystery Oil. I'm pretty sure I know whatvi SHOULD do ( throw them in the can ) but I'm not ready to give in to that. Thinkin bout trying the ultrasonic cleaner but so far I'm not impressed with how its cleaning. ANY thoughts ideas or help would be greatly appreciated. BTW is anyone else on here. From the Phoenix area?
    2005 Honda VTX 1300 c
    slightly custom

    1979 XS 1100 SF
    in the works

    1979 XS 1100F, or
    1978 XS 1100E
    parts bike

    1980 XS 1100 SG
    just sitting partly torn down by PO
    playing roll of parts bike for now




    Hate to break it to the purists here but I cant go for the whole stock thing on this one.

  • #2
    Somewhere on here there was a post by someone who made a tool to press those out i think.
    1980 XS1100LG Midnight
    1991 Honda CBR1000F Hurricane


    "The hand is almost valueless at one end of the arm if there be not a brain at the other"

    Here's to a long life and a happy one.
    A quick death and an easy one.
    A pretty girl and an honest one.
    A cold beer and another one!

    Comment


    • #3
      Do a search on mixture screw tip and broken or stuck. LOTS of options for how to get them out. One of them may work for you.

      The most popular way that has seemed to work recently for folks is to put the carbs in the freezer for a bit and try to push it out. The brass the screw is made out of shrinks more than the aluminum and it can loosen them enough to get them out.
      Life is what happens while your planning everything else!

      When your work speaks for itself, don't interrupt.

      81 XS1100 Special - Humpty Dumpty
      80 XS1100 Special - Project Resurrection


      Previously owned
      93 GSX600F
      80 XS1100 Special - Ruby
      81 XS1100 Special
      81 CB750 C
      80 CB750 C
      78 XS750

      Comment


      • #4
        Yeah plenty of options on here, thankfully I have never had to deal with this!
        Nathan
        KD9ARL

        μολὼν λαβέ

        1978 XS1100E
        K&N Filter
        #45 pilot Jet, #137.5 Main Jet
        OEM Exhaust
        ATK Fork Brace
        LED Dash lights
        Ammeter, Oil Pressure, Oil Temp, and Volt Meters

        Green Monster Coils
        SS Brake Lines
        Vision 550 Auto Tensioner

        In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

        Theodore Roosevelt

        Comment


        • #5
          I had the same problem - 3 broken tips - and tried every suggestion I found on here. Nothing worked and I finally had to drill them out. I hope you have better luck!
          1979 XS1100 Standard
          Putting it together........

          Comment


          • #6
            Hi Fireplug,
            if all else fails, drill the bastards out.
            A hand-held drill will not be precise enough to do the job.
            You'll need to use a drill press so you can centre the drill bit and you'll need to block the carb body up dead square on the drill press base plate.
            A 1mm drill bit is just about right but we used a 1/16" because that's the skinniest drill bit that the chuck on our drill press will grip.
            If you use the 1/16" drill bit just don't thread the new needle out as far; worked OK for us.
            Fred Hill, S'toon
            XS11SG with Spirit of America sidecar
            "The Flying Pumpkin"

            Comment


            • #7
              Carbs

              If all else fails and they are 78-79carbs, I think I have some spare bodies I could sell you. You would need to completely disassemble to replace.
              78 XS1100E Standard
              Coca Cola Red
              Hooker Headers

              http://i408.photobucket.com/albums/p...m/DSC00580.jpg

              1979 XS1100 Special
              http://i408.photobucket.com/albums/p...m/DSC00612.jpg

              1980 XS Standard
              http://i408.photobucket.com/albums/p...m/DSC01137.jpg

              2006 Roadstar Warrior
              http://i408.photobucket.com/albums/p...um/warrior.jpg

              Comment


              • #8
                The idea is to get the stuck pin frozen and the aluminum body hot. this will open the clearance around the pin and it should press out easily.
                To do this sprayCO2 around the pin and pin or place in freezer until carbs are as cold as the freezer, several hours. Using a small hose or tube over the pin, heat the carb body in the area to swell the aluminum up and open the clearance.
                Idea is to not heat the pin while heating the carb body.
                Dell82
                Dell82
                Houston, TX
                82' XJ1100J Maxim "LASERMAX"
                SOLD 86' Kawasaki Voyager XII, 1200cc SOLD
                SOLD 82' CB450SC Nighthawk, FOR SALE SOLD
                SOLD 82' CB450SC Nighthawk, parts bike SOLD

                Comment


                • #9
                  Hmmm. I've been thinking bout the freezer thing for a while. But now I'm thinkin bout the drill press if for no other reason than I get to buy a new tool. That you everyone for all the ideas. Keep em coming n ill keep you posted
                  2005 Honda VTX 1300 c
                  slightly custom

                  1979 XS 1100 SF
                  in the works

                  1979 XS 1100F, or
                  1978 XS 1100E
                  parts bike

                  1980 XS 1100 SG
                  just sitting partly torn down by PO
                  playing roll of parts bike for now




                  Hate to break it to the purists here but I cant go for the whole stock thing on this one.

                  Comment


                  • #10
                    Drill press I say should be last resort, if by chance you change the holes even a little it could make it VERY hard to tune the carbs!
                    Nathan
                    KD9ARL

                    μολὼν λαβέ

                    1978 XS1100E
                    K&N Filter
                    #45 pilot Jet, #137.5 Main Jet
                    OEM Exhaust
                    ATK Fork Brace
                    LED Dash lights
                    Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                    Green Monster Coils
                    SS Brake Lines
                    Vision 550 Auto Tensioner

                    In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                    Theodore Roosevelt

                    Comment


                    • #11
                      im in the same boat fellow xsive....as i speak/type the carbs are in the freezer lets hot this works
                      _____________________________________________ 1979 XS 1100 Special "The judge" mods- K&N air pods, 4-1 mac, 147.5 pilots, 57.5 mains, LED turn signal, cafe bars, HEL translucent yellow stainless steel brake line, dyna coil (dc2-1), raptor 660 mc, r6 controls..(sold)

                      1982 gs1100e "all business" cafe project
                      1980 gs1000g "stock"
                      1982 honda express "stretched 10 inch(my daughters scooter)
                      2008 jmstar 150cc Chinese scooter ( wife's bike)

                      Comment


                      • #12
                        Just try more than once if it doesn't work before going to the extreme.
                        Nathan
                        KD9ARL

                        μολὼν λαβέ

                        1978 XS1100E
                        K&N Filter
                        #45 pilot Jet, #137.5 Main Jet
                        OEM Exhaust
                        ATK Fork Brace
                        LED Dash lights
                        Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                        Green Monster Coils
                        SS Brake Lines
                        Vision 550 Auto Tensioner

                        In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                        Theodore Roosevelt

                        Comment


                        • #13
                          oh i agree drilling is absolutely the last resort. think ill wash them real good tomorrow and freeze them
                          2005 Honda VTX 1300 c
                          slightly custom

                          1979 XS 1100 SF
                          in the works

                          1979 XS 1100F, or
                          1978 XS 1100E
                          parts bike

                          1980 XS 1100 SG
                          just sitting partly torn down by PO
                          playing roll of parts bike for now




                          Hate to break it to the purists here but I cant go for the whole stock thing on this one.

                          Comment


                          • #14
                            Curious to hear how it works for both of you guys.
                            Nathan
                            KD9ARL

                            μολὼν λαβέ

                            1978 XS1100E
                            K&N Filter
                            #45 pilot Jet, #137.5 Main Jet
                            OEM Exhaust
                            ATK Fork Brace
                            LED Dash lights
                            Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                            Green Monster Coils
                            SS Brake Lines
                            Vision 550 Auto Tensioner

                            In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                            Theodore Roosevelt

                            Comment


                            • #15
                              Originally posted by Fireplug View Post
                              oh i agree drilling is absolutely the last resort. think ill wash them real good tomorrow and freeze them
                              Hi Fireplug,
                              like I said, "if all else fails". But WTF, like anybody else, you need a drill press anyway!
                              While a posh $1,000 floor model would really enhance a person's workshop, a Harbor Freight bench drill on special at $69.99 is all you really need.
                              Fred Hill, S'toon
                              XS11SG with Spirit of America sidecar
                              "The Flying Pumpkin"

                              Comment

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