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    #61
    Originally posted by gustovh View Post
    Ran all the checks and came up clean, very clean carbs. The problem slowly came on at the end of a 1000 mile ride and got worse as time passed. I am running a stage one kit and have always run the pilots around 11/2 turns. If I go much more I get a hanging idle. Still tweaking them but may be a while now as other things get in the way. She does turn up fairly good now just waiting for the hammer to drop again.

    i wonder if a set off a 83 1000G would work….

    V
    The pilot screws control fuel flow. More open, more fuel. They are not air bleeds. You might want to try 3 turns open, and see what happens.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

    Comment


      #62
      3 turns open means really bad hanging idle. I know what the screws adjust, have synced to straight across the board. Maybe I’ll try my blue tune and see what I get.

      V
      Gustov
      80 GS 1100 LT, 83 1100 G "Scruffy"
      81 GS 1000 G
      79 GS 850 G
      81 GS 850 L
      83 GS 550 ES, 85 GS 550 ES
      80 GS 550 L
      86 450 Rebel, 70CL 70, Yamaha TTR125
      2002 Honda 919
      2004 Ural Gear up

      Comment


        #63
        Originally posted by gustovh View Post
        3 turns open means really bad hanging idle. I know what the screws adjust, have synced to straight across the board. Maybe I’ll try my blue tune and see what I get.

        V
        3 turns out should be flooding the engine with gas not making it hang.

        Comment


          #64
          Yes, the hanging idle comes from burning off the excess fuel when the throttle is closed. The carbs as stated have the stage 1 treatment, so normal input does not always equal normal results when tuning.

          V
          Gustov
          80 GS 1100 LT, 83 1100 G "Scruffy"
          81 GS 1000 G
          79 GS 850 G
          81 GS 850 L
          83 GS 550 ES, 85 GS 550 ES
          80 GS 550 L
          86 450 Rebel, 70CL 70, Yamaha TTR125
          2002 Honda 919
          2004 Ural Gear up

          Comment


            #65
            Originally posted by gustovh View Post
            Yes, the hanging idle comes from burning off the excess fuel when the throttle is closed. The carbs as stated have the stage 1 treatment, so normal input does not always equal normal results when tuning.

            V
            Actually, no. A hanging idle is caused by a lean condition, not rich.
            Ed

            To measure is to know.

            Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

            Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

            Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

            KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

            Comment


              #66
              Yes and no. If I turn my pilots more than 11/2-13/4 turns out I get a hanging idle, idles good at 11/2 turns. Go figure

              V
              Gustov
              80 GS 1100 LT, 83 1100 G "Scruffy"
              81 GS 1000 G
              79 GS 850 G
              81 GS 850 L
              83 GS 550 ES, 85 GS 550 ES
              80 GS 550 L
              86 450 Rebel, 70CL 70, Yamaha TTR125
              2002 Honda 919
              2004 Ural Gear up

              Comment


                #67
                Originally posted by gustovh View Post
                3 turns open means really bad hanging idle. I know what the screws adjust, have synced to straight across the board. Maybe I’ll try my blue tune and see what I get.

                V
                Yep, it is time for the blue tune!
                What is the color @ 1.5 turns out and 3.0 turns out?
                Pilot screws have good o-rings?
                At 3 turns out do you think the pilots are sucking air?
                Jim, in Central New York State.

                1980 GS750E (bought used June,1983)
                1968 CB350 Super Sport (bought new Oct,1968)
                1962 CA77 305 Dream (bought used Feb,1963)

                Comment


                  #68
                  Won’t get to the blue tune till this weekend maybe, have another project that I’m working on.

                  image.jpg
                  Gustov
                  80 GS 1100 LT, 83 1100 G "Scruffy"
                  81 GS 1000 G
                  79 GS 850 G
                  81 GS 850 L
                  83 GS 550 ES, 85 GS 550 ES
                  80 GS 550 L
                  86 450 Rebel, 70CL 70, Yamaha TTR125
                  2002 Honda 919
                  2004 Ural Gear up

                  Comment


                    #69
                    Originally posted by pdqford View Post

                    Yep, it is time for the blue tune!
                    What is the color @ 1.5 turns out and 3.0 turns out?
                    Pilot screws have good o-rings?
                    At 3 turns out do you think the pilots are sucking air?
                    Maybe the O-rings start to leak if the pilot screws are open more than 1.5 turns?

                    gustovh Did you replace all the O-rings recently (last 5 years or so?)
                    Ed

                    To measure is to know.

                    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                    Comment


                      #70
                      I did that that is how I know what it does. Doesn’t even want to run 3 turns out. Fresh O rings and seals. New intake pipes. Possible throttle shaft seals as Big T throws out. Have not ridden since last adjustment or looked at the plugs yet.

                      V
                      Last edited by gustovh; 08-28-2024, 07:31 PM.
                      Gustov
                      80 GS 1100 LT, 83 1100 G "Scruffy"
                      81 GS 1000 G
                      79 GS 850 G
                      81 GS 850 L
                      83 GS 550 ES, 85 GS 550 ES
                      80 GS 550 L
                      86 450 Rebel, 70CL 70, Yamaha TTR125
                      2002 Honda 919
                      2004 Ural Gear up

                      Comment

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