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having issues with carbs

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    having issues with carbs

    After cleaning my carbs out I'm having backfiring out of my #2 and #3 carbs... also my father in law over filled my bike with oil and now it's smoking like crazy... I dropped out the oil and and fired it up but now I can't get it to idle without backfires and when I tap the throttle it cuts out and dies... I'm kinda baffled..
    I recently just rebuilt my top end haven't even got the chance to ride it yet.... I've done everything I can think of up to this point bench synced all carbs just a sec ago goin to put em on the bike and try to warm it up so I can vacuum sync them... but that is even if I can

    #2
    Do you have the airbox on?
    https://drive.google.com/open?id=0B9zH8w8Civs8ejBJWjdvYi1LNTg&resourcekey=0-hlJp0Yc4K_VN9g7Jyy4KQg&authuser=fussbucket_1%40msn.com&usp=drive_fs
    1983 GS750ED-Horsetraded for the Ironhead
    1981 HD XLH

    Drew's 850 L Restoration

    Drew's 83 750E Project

    Comment


      #3
      Originally posted by jsandidge View Post
      Do you have the airbox on?
      Pods are on

      Comment


        #4
        Did you follow the carb rebuild tutorial and fully tear down the carbs? Soak the carb bodies and pieces in carb dip? Replace all the O-rings? Verify all the passages and jets are open as described in the carb rebuild tutorial?

        Did you purchase real K&N or Ape pods? Install a Dynojet or Sigma jet kit to go along with the pods?

        On the ignition side, did you check resistance on the plug caps? Snip off a small piece of the ignition wire and screw the caps back onto the wires assuring good contact?
        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


          #5
          No I haven't done a full tear down because it ran fine before the rebuild. This is what I have done and new parts
          Pods modify
          Ricks rectifier and stator
          Top end rebuild
          Emgo coils 4 ohm
          New oil filter
          2In1 Mac turnouts
          Ngk plugs and caps
          New head gasket valve cover exhaust gaskets vesrah
          Viton valve stem seals
          Grinder seats valves and head face
          So I guess the carb rebuild is next I have new o rings on intake boots already but my thing is I had them running and synced before the rebuild

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            #6
            Also I made sure all passages were open with compressed air when I took the carbs apart but like I said I haven't taken them apart down to individual carbs

            Comment


              #7
              Main jetstmp_28001-20160223_153633-493248215.jpg

              Comment


                #8
                Rejetting for pods involves more than just changing the main jets. A Dynojet kit is highly recommended. Also, make sure the pilot jets are open, the choke circuits are open, etc...
                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


                  #9
                  That was already in the carbs when I got the bike lol

                  Comment


                    #10
                    My experience with stuff already on the bike is that until everything is something you put (or had put) there with proper care, it ain't right. This goes especially for carbs when the flow in/out is not stock. That said, a nice air leak can give you a lean condition.

                    Comment


                      #11
                      Alright I'll get the carbs fully tore down and order a rebuild kit from z1 and also the jet kit

                      Comment


                        #12
                        Waste of time and effort.
                        http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                        Life is too short to ride an L.

                        Comment


                          #13
                          Originally posted by mottacycle View Post
                          Alright I'll get the carbs fully tore down and order a rebuild kit from z1 and also the jet kit
                          Originally posted by tkent02 View Post
                          Waste of time and effort.
                          You don't need "rebuild kits" from ANYWHERE. They are usually about $25 or so each, usually contain parts of questionable quality, and don't contain all the parts that you DO need.

                          There is a guide on BassCliff's site that shows how to rebuild the carbs, it is also linked in Nessism's post (#8). The only parts that are usually needed are bowl gaskets and an o-ring kit from cycleorings.com. While ordering your carb o-rings, be sure to get the ones for your intake boots, too. Splurge, get the stainless bolts that hold the intake boots on. All together, you will spend about the same as ONE "rebuild kit".
                          I ride many bikes.
                          Some are even Suzukis. :D

                          Comment


                            #14
                            Unless your old ones are torn, you usually won't even need new bowl gaskets.
                            https://drive.google.com/open?id=0B9zH8w8Civs8ejBJWjdvYi1LNTg&resourcekey=0-hlJp0Yc4K_VN9g7Jyy4KQg&authuser=fussbucket_1%40msn.com&usp=drive_fs
                            1983 GS750ED-Horsetraded for the Ironhead
                            1981 HD XLH

                            Drew's 850 L Restoration

                            Drew's 83 750E Project

                            Comment


                              #15
                              Ok I've read over the carb rebuild and I am goin to need the o ring kit also the dyna stage three... better pods as well
                              Thanks for the advice I appreciate it.

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