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GS1100E routing air pressure equalization line

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    GS1100E routing air pressure equalization line

    Not sure if this should be over in carbs, but since it's got 'performance mods'...

    My '82 1100E seems to "hunt" when running on the highway at steady speeds (65+). I suspect the positioning of the carburetor pressure equalization line. The tube is currently run up under the seat over the inner fender. I added a small plastic tool tray from another bike to cover up the opening between the frame rails where the airbox used to be. The bike has side covers installed.

    I know these tubes don't work well when dropped directly into the airstream and think this location is pretty sheltered. Stock position is usually right at the inlet to the airbox (removed).

    Background: The engine is set up with K&N pods, Dynojet Stage 3, and Kerker 4:1 pipe with street baffle. Not sure if anyone remembers my early tuning troubles, but the bike came with a HUGE Kerker drag baffle that I could barely get the carbs tuned to run with. Replacing that baffle with a normal sized baffle helped ridability (and sound) greatly. I ended up with all the Stage 3 components in place and the needle in its absolute highest position. The only thing I can do next is bigger main jets and I am still considering drilling out a set of my small jets to try it. But she seems to be fine WOT, running strong and cleanly to (and past) redline, which is why I haven't done that yet (plus all the needle fiddling I'd have to do again!).

    I've also read about wind turbulence affecting K&N pods on drag engines, but forget the source.

    Does anybody have a similar setup? Where are you routing your atmospheric pressure line?

    Any votes for playing with the main jets instead?

    #2
    the common solution to running pods is to remove the pipes altogether. Dynojet recommend this and i, as well as countless others have done this and it seems to work fine.
    1978 GS1085.

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

    Comment


      #3
      Originally posted by Agemax View Post
      the common solution to running pods is to remove the pipes altogether. Dynojet recommend this and i, as well as countless others have done this and it seems to work fine.
      I haven't heard that before. Are you saying to simply disconnect the tubes at the carbs?

      (note, my carbs are set up with two tubes, joined by a T, and running a single equalization line back under the seat)

      Comment


        #4
        Originally posted by AJ View Post
        I haven't heard that before. Are you saying to simply disconnect the tubes at the carbs?

        (note, my carbs are set up with two tubes, joined by a T, and running a single equalization line back under the seat)
        yep, just pull the pipes off the the carbs and leave the "nipples" open.
        1978 GS1085.

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

        Comment


          #5
          this is the sheet i got with my DJ kit, scanned it and highlighted the right bit....

          1978 GS1085.

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

          Comment


            #6
            Same recommendation for the VM Carburetors. I have never had any trouble running mine like that.
            http://www.thegsresources.com/_forum...ine=1440711157'78 GS1000E, Dyna-S ignition, Dyna Green Coils, K&N pods, Delkevic SS 4-1 exhaust, Dynojet Stage 3 jet kit, Russell SS Brake Lines, Progressive suspension, Compu-Fire series Regulator 55402 and Advmonster cree LED headlight conversion.

            Comment


              #7
              Originally posted by OldVet66 View Post
              Same recommendation for the VM Carburetors. I have never had any trouble running mine like that.
              yeah, mine are the VM carbs, you get the same instructions with either kit for the GS1K, but they include all parts on the list, so the kit will work with CV's or VM's.
              1978 GS1085.

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

              Comment


                #8
                Originally posted by Agemax View Post
                this is the sheet i got with my DJ kit, scanned it and highlighted the right bit....

                That is a very old kit. EDIT it seems to be the wrong jet kit. It is for a GS1000



                Now a days the DJ3133 comes with 132/138 which is stock you would go with the 132 when adding 4:1 and Pods. The needle also has a different part number which they seem to have fiddled with the design.

                Usually this is a pretty standard setup so I would guess your problems are the old jet kit and more specifically the needles.
                Last edited by posplayr; 05-08-2013, 12:17 PM.

                Comment


                  #9
                  Originally posted by posplayr View Post
                  That is a very old kit.



                  Now a days the DJ3133 comes with 132/138 which is stock you would go with the 132 when adding 4:1 and Pods. The needle also has a different part number which they seem to have fiddled with the design.

                  Usually this is a pretty standard setup so I would guess your problems are the old jet kit and more specifically the needles.
                  i dont have any problems with my set up. i just showed the pic so OP could see about removing vent hoses.........
                  1978 GS1085.

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

                  Comment


                    #10
                    As Agemax said, simply lose the vent hoses... I'm running pods on my '81 1100 & that's exactly what Ive done with zero ill effects...
                    '85 GS550L - SOLD
                    '85 GS550E - SOLD
                    '82 GS650GL - SOLD
                    '81 GS750L - SOLD
                    '82 GS850GL - trusty steed
                    '80 GS1100L - son's project bike
                    '82 GS1100G - SOLD
                    '81 GS1100E - Big Red (daily rider)

                    Comment


                      #11
                      Originally posted by Agemax View Post
                      this is the sheet i got with my DJ kit, scanned it and highlighted the right bit....
                      Thank you, Sir! I'll give that a try and see if it fixes it!

                      Comment


                        #12
                        Originally posted by AJ View Post
                        Thank you, Sir! I'll give that a try and see if it fixes it!
                        i cant say that it will fix it, it is just what they recommend thats all
                        1978 GS1085.

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

                        Comment


                          #13
                          Originally posted by Agemax View Post
                          i dont have any problems with my set up. i just showed the pic so OP could see about removing vent hoses.........
                          Sorry, I thought that was the OP posting

                          Comment


                            #14
                            Originally posted by posplayr View Post
                            Sorry, I thought that was the OP posting
                            Oh no! Didn't you hear that I stuffed a GS1000 8V motor in my frame? I was told that was Suzuki's best engine!

                            Comment


                              #15
                              Haven't tried to remove that balance tube yet, but I did find the Dynojet instructions online and there is nothing in there about removing it. http://www.dynojet.com/pdf/3133.pdf
                              Looked at a few other instruction sheets too and none of them recommend removing the vent tubes. Will give Dynojet a call tomorrow.
                              Last edited by Guest; 05-09-2013, 10:43 PM.

                              Comment

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