dislodging a broken main jet from the needle jet

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  • 81suzi
    • Jan 2026

    #1

    dislodging a broken main jet from the needle jet

    help!

    main jet broke off in the needle jet when dismantling (getting back to stock). can't back it out. any tricks?

    thanks
  • 81suzi

    #2
    no worries, just bought a used 'main jet holder' on ebay. 8 bucks
    ken

    Comment

    • Agemax
      Forum Guru
      • Apr 2008
      • 8371
      • plymouth uk

      #3
      they are only brass, will drill out real easy
      1978 GS1085.

      Just remember, an opinion without 3.14 is just an onion!

      Comment

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

        #4
        Yes they will drill out easy...EXCEPT you can mess up the threads in the friggin needle jet!!!!!!!

        Heres what you do. Heat the crap out of it with a propane torch...short of melting it..and dunk in cold water. Do this 2 or 3 times. The heat and immediate cooling will crack all the oxidation that's locking it in.

        Next apply penetrating oil. Find something that will grip the inside bore of the snapped off jets threads and CAREFULLY try to extract it. I suggest a very thin blade flat tip screw driver first. If that wont start gripping the walls of the threads, then move on up to an EZ out. But be careful and apply twisting pressure evenly. If the EZ out still wont budge it, you may have to replace the needle jet and the main jet.
        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

        • Agemax
          Forum Guru
          • Apr 2008
          • 8371
          • plymouth uk

          #5
          yep, so to save a lot of time, drill it out...........carefully
          1978 GS1085.

          Just remember, an opinion without 3.14 is just an onion!

          Comment

          • tkent02
            Forum LongTimer
            Past Site Supporter
            • Jan 2006
            • 35571
            • Near South Park

            #6
            With a left hand drill bit
            http://img.photobucket.com/albums/v5...tatesMap-1.jpg

            Life is too short to ride an L.

            Comment

            • 81suzi

              #7
              thanks for all the response, guys!

              Comment

              • rapidray
                Forum Guru
                GSResource Superstar
                • Oct 2006
                • 8195
                • So Cal

                #8
                I am guessing all of you are referring to the EMULSION TUBE when you are saying "needle jet"? Just trying to give you the correct terminology in case you have to order parts. Ray.

                Comment

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

                  #9
                  Actually we are referring to the needle jet...which is its proper name.
                  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

                    #10
                    Went and got my manual...seems both our recollections are wrong Ray. The manual calls component number 15 ( 1000 VM carbs schematic) a "breader pipe". See section 8 under the disassembly of carbs part. Schematic list the "emulsion tube" and what I have learned as the "needle jet" as a breader pipe. We are both incorrect in our terminology.
                    Last edited by chuck hahn; 09-01-2013, 01:57 PM.
                    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

                    • Agemax
                      Forum Guru
                      • Apr 2008
                      • 8371
                      • plymouth uk

                      #11
                      its an emulsion tube, always has been, always will be.
                      1978 GS1085.

                      Just remember, an opinion without 3.14 is just an onion!

                      Comment

                      • tkent02
                        Forum LongTimer
                        Past Site Supporter
                        • Jan 2006
                        • 35571
                        • Near South Park

                        #12
                        Originally posted by chuck hahn
                        Went and got my manual...seems both our recollections are wrong Ray. The manual calls component number 15 ( 1000 VM carbs schematic) a "breader pipe".

                        My apologies.
                        I thought he had CV carbs?
                        http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                        Life is too short to ride an L.

                        Comment

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

                          #13
                          What does it matter..its the same part..no??? Does the same in each carb..no? So the manual calls it a breader pipe..no? Am I missing something after rereading the manuals description?

                          I will go look at an 850 carb manual to satisfy my curiosity though.
                          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

                            #14
                            CVs are called a needle jet according to the manual..its the 1 piece unit. Apples if its a VM carb and oranges if its a CV carb I guess.

                            But nowhere does it get called an emulsion tube.
                            Last edited by chuck hahn; 09-01-2013, 02:10 PM.
                            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

                            • tkent02
                              Forum LongTimer
                              Past Site Supporter
                              • Jan 2006
                              • 35571
                              • Near South Park

                              #15
                              VMs have an actual needle jet separate from the tub the main jet screws into, whatever you want to call it. Little tiny thing way up in there. Completely different from CVs.
                              http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                              Life is too short to ride an L.

                              Comment

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