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  • Any help? also updates. (Video)

    Sorry I haven't been around for a while, I hit some financial troubles and had to put my bike on hold.
    After the last couple weeks of wiring I could really use some help with FUEL.

    I can fix and figure just about anything but carbs make me want to rip my face off.

    That being said I'm going to just post a video link here show off what I have done and what problems I'm running into.

    Maybe you all can help me out as to why in the hell this bike just refuses to play nice.

    Thanks

    https://youtu.be/Zt6SgO5n6T8
    1980 SH - 100% custom wired Road warrior with motogadget everything.
    Looks like a scrap heap, runs like a dream.
    Master of the wires.

  • #2
    OK, looked at part of the video and have one or two quick answers for you.
    #1, you have EARLY carbs, '78 or '79, so keep that in mind when locating parts or diagrams.
    The "T" fittings. Top one is a VENT, and MUST be open to the air. best to add a short line and filter to keep bugs out of it.
    Bottom "T" is for FUEL, and hooks up to the tank.
    It looks like you have the #2 carb in the #1 position, so you can't put the lever for the enrichment circuit on it. The advance DOES need to go to the carb body, and NOT to an intake port on the manifold.
    You CAN use the carbs the way they are, but I think you are also missing the detent ball from the enrichment rod. It would keep the rod in one of two positions while the bike is warming up. Not hard to install, and it's a 1/8" ball that can be had from most hardware stores. Look at the carbs in the repair section, as I think there are some photo's and diagrams that may help.
    Ray Matteis
    KE6NHG
    XS1100 E '78 (winter project)
    XS1100 SF Bob Jones worked on it!

    Comment


    • #3
      The upper T's between the carbs are vents, the lower T's are fuel inlets. Leave the top ones open to atmosphere and connect the fuel lines to the lower ones and your flooding issues should stop.
      2H7 (79) owned since '89
      3H3 owned since '06

      "If it ain't broke, modify it"

      Comment


      • #4
        Originally posted by DiverRay View Post
        OK, looked at part of the video and have one or two quick answers for you.
        #1, you have EARLY carbs, '78 or '79, so keep that in mind when locating parts or diagrams.
        The "T" fittings. Top one is a VENT, and MUST be open to the air. best to add a short line and filter to keep bugs out of it.
        Bottom "T" is for FUEL, and hooks up to the tank.
        It looks like you have the #2 carb in the #1 position, so you can't put the lever for the enrichment circuit on it. The advance DOES need to go to the carb body, and NOT to an intake port on the manifold.
        You CAN use the carbs the way they are, but I think you are also missing the detent ball from the enrichment rod. It would keep the rod in one of two positions while the bike is warming up. Not hard to install, and it's a 1/8" ball that can be had from most hardware stores. Look at the carbs in the repair section, as I think there are some photo's and diagrams that may help.
        So my main concern is that fuel flow issue. If I use the lower port it just keeps hemeraging fuel.
        1980 SH - 100% custom wired Road warrior with motogadget everything.
        Looks like a scrap heap, runs like a dream.
        Master of the wires.

        Comment


        • #5
          I tell you one thing, the bowls and the carb tops are not correct for the early type carbs. Either the rack is from a bike other than an XS11, or the carb rack has a bunch of mismatched parts. Hard to tell what could be wrong, you may want to find another rack if you are able.
          Last edited by bikerphil; 07-26-2017, 10:50 AM.
          2H7 (79) owned since '89
          3H3 owned since '06

          "If it ain't broke, modify it"

          Comment


          • #6
            Originally posted by bikerphil View Post
            I tell you one thing, the bowls and the carb tops are not correct for the early type carbs. Either the rack is from a bike other than an XS11, or the carb rack has a bunch of mismatched parts. Hard to tell what could be wrong, you may want to find another rack if you are able.
            Sadly I can't afford it right now...

            What about those vacuum ports on the bottom though? Do I leave those open or plug them?
            1980 SH - 100% custom wired Road warrior with motogadget everything.
            Looks like a scrap heap, runs like a dream.
            Master of the wires.

            Comment


            • #7
              Those carbs are NOT XS11 carbs. The white T's with black hose looks like they might be bowl vents, if so the must be left open to air, preferably with filters on to keep bugs out. You need to take the bowls off to see if they are vents for sure. Fuel flowing out the air jets, again take the bowls off and see if the needles are shutting off the fuel, it looks like they are not.
              79 F full cruiser, stainless brake lines, spade fuses, Accel coils, modded air box w/larger velocity stacks, 750 FD.
              79 SF parts bike.

              Comment


              • #8
                Originally posted by red bandit View Post
                Those carbs are NOT XS11 carbs. The white T's with black hose looks like they might be bowl vents, if so the must be left open to air, preferably with filters on to keep bugs out. You need to take the bowls off to see if they are vents for sure. Fuel flowing out the air jets, again take the bowls off and see if the needles are shutting off the fuel, it looks like they are not.
                So if I run fuel to the black ones the fuel flow will stop. If I run fuel to the white one fuel continues to flow.
                It's really an absolute nightmare and I'm sure they aren't xs11 carbs considering the less than half brained PO gave me a second set that was so beat up from someone who had no business disassembling them I just junked them (bet those were the stock ones)

                Well FML because I can't afford to spend $300 on a new set of carbs or even $100 on used one and $80 on a rebuild kit.

                I hate this bike.... I truly truly hate it... Well more the PO than the bike
                1980 SH - 100% custom wired Road warrior with motogadget everything.
                Looks like a scrap heap, runs like a dream.
                Master of the wires.

                Comment


                • #9
                  Hate the PO, but once running you will love the bike, trust me.
                  You should start with taking the carbs off the bike, flip them over and pull all 4 bowls off. You can then see for sure that the top ports are vents, bottom for fuel, and verify all 4 needles are shutting off the fuel.
                  To do that, with the bowls removed and carbs upside down, put hoses on the two LOWER "T" fittings and put a tank of water(non flammable!) above the rack and feed it from the tank. There should be NO water flowing into the carbs, though what I do is lift each float just a bit to get all the air out, then dry the few drops of water. Leave it upside down for about 10 minutes, then go back and see if any water leaked in. If not, your good, if it did you need to fix that first.
                  Before you put them back on, try to see if you can read the jet size on the carbs. Also, make SURE they are Mikuni jets, the K&L that come in most the kits are sized wrong, and don't work well. All of us here have been through that before!
                  Here is a link for the carb cleaning, just to give you a hand. Though the carbs look like they are not OEM, this link will still help a lot!http://www.xs11.com/forum/showthread.php?t=36017
                  Ray Matteis
                  KE6NHG
                  XS1100 E '78 (winter project)
                  XS1100 SF Bob Jones worked on it!

                  Comment


                  • #10
                    Originally posted by DiverRay View Post
                    Hate the PO, but once running you will love the bike, trust me.
                    You should start with taking the carbs off the bike, flip them over and pull all 4 bowls off. You can then see for sure that the top ports are vents, bottom for fuel, and verify all 4 needles are shutting off the fuel.
                    To do that, with the bowls removed and carbs upside down, put hoses on the two LOWER "T" fittings and put a tank of water(non flammable!) above the rack and feed it from the tank. There should be NO water flowing into the carbs, though what I do is lift each float just a bit to get all the air out, then dry the few drops of water. Leave it upside down for about 10 minutes, then go back and see if any water leaked in. If not, your good, if it did you need to fix that first.
                    Before you put them back on, try to see if you can read the jet size on the carbs. Also, make SURE they are Mikuni jets, the K&L that come in most the kits are sized wrong, and don't work well. All of us here have been through that before!
                    Here is a link for the carb cleaning, just to give you a hand. Though the carbs look like they are not OEM, this link will still help a lot!http://www.xs11.com/forum/showthread.php?t=36017
                    Okay. So the white T fitting SHOULD be the fuel inlet. That being said why are the white fitting leaking out of the Jets in front. I'm pretty sure that's not supposed to happen.
                    Sorry if I sound like an idiot In text literally NOTHING make sense to me about this redundant fuel air BS setup on these POS random frankinmakunis
                    1980 SH - 100% custom wired Road warrior with motogadget everything.
                    Looks like a scrap heap, runs like a dream.
                    Master of the wires.

                    Comment


                    • #11
                      NO, the BOTTOM "T" should be fuel, and TOP "T" should be vent, this is with the carbs as they are on the bike. As I don't know for sure what they are off, I can't be 100% on that, but I'm 95%. When upside down, fuel goes into the top, and the vent should be on the bottom. Take a look at the link, it may help you understand a little better as it has some pretty good pics, if photobucket hasn't dumped them...
                      Ray Matteis
                      KE6NHG
                      XS1100 E '78 (winter project)
                      XS1100 SF Bob Jones worked on it!

                      Comment


                      • #12
                        Because trying to explaining things in black and white sucks.

                        https://youtu.be/RyY7PmYBBcc
                        1980 SH - 100% custom wired Road warrior with motogadget everything.
                        Looks like a scrap heap, runs like a dream.
                        Master of the wires.

                        Comment


                        • #13
                          Yeah I saw that thread a week ago but without the pictures (thanks Photobucket) it's just gibberish :/
                          1980 SH - 100% custom wired Road warrior with motogadget everything.
                          Looks like a scrap heap, runs like a dream.
                          Master of the wires.

                          Comment


                          • #14
                            OK, you have the two main "T" fittings worked out! Black fuel in, White vent to outside air.
                            As for the "other" fittings...these are NOT something on a stock XS1100, so I'm not going to say I know for sure what they are. They DO look like something I would block off as a start. I'm not sure what they are for, though they may have something to do with the enrichment circuit for starting. Sorry I can't help much more at this point.
                            Ray Matteis
                            KE6NHG
                            XS1100 E '78 (winter project)
                            XS1100 SF Bob Jones worked on it!

                            Comment


                            • #15
                              Originally posted by DiverRay View Post
                              OK, you have the two main "T" fittings worked out! Black fuel in, White vent to outside air.
                              As for the "other" fittings...these are NOT something on a stock XS1100, so I'm not going to say I know for sure what they are. They DO look like something I would block off as a start. I'm not sure what they are for, though they may have something to do with the enrichment circuit for starting. Sorry I can't help much more at this point.
                              Excellent! I'll plug them and see if my be that's why the bowls aren't pulling fuel (willing to be that's why it won't start)

                              I'm going to eventually make a fuel injection system for it but if these work and can be tuned enough to be safe I can finally finish my seat and lights.

                              Thank you for all the help!
                              1980 SH - 100% custom wired Road warrior with motogadget everything.
                              Looks like a scrap heap, runs like a dream.
                              Master of the wires.

                              Comment

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