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  • enelson2047
    • Feb 2026

    #1

    NO start

    No start, just finish putting the engine back on my 83 GS1100E after rebuild with a DYNA S system including coils and mikuni 38mm flat slides smooth bores. Now it will not start. it try to start but after trying it shot a flame out the pipe. What could this be. I have checked the cams again and they are installed per the manual need some help
  • Nessism
    Forum LongTimer
    GSResource Superstar
    Past Site Supporter
    Super Site Supporter
    • Mar 2006
    • 35790
    • Torrance, CA

    #2
    Jetting issues maybe. Sorry, but I have no advice about how to jet those carbs.
    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

    • Big T
      Forum LongTimer
      Past Site Supporter
      Super Site Supporter
      • Mar 2005
      • 12392
      • West Slope, OR

      #3
      Originally posted by Nessism
      Jetting issues maybe. Sorry, but I have no advice about how to jet those carbs.
      Agreed

      Those carbs are awfully big for that motor unless it's in race tune

      The flames indicate fuel is in the carbs and combustion chambers.

      I'd double check the cam and ignition timing
      1978 GS 1000 (since new)
      1979 GS 1000 (The Fridge, superbike replica project)
      1978 GS 1000 (parts)
      1981 GS 850 (anyone want a project?)
      1981 GPZ 550 (backroad screamer)
      1970 450 Mk IIID (THUMP!)
      2007 DRz 400S
      1999 ATK 490ES
      1994 DR 350SES

      Comment

      • enelson2047

        #4
        NO Start

        Thanks to all but the motor is now 1170 but it dose have stock cams

        Comment

        • OLDENUFF

          #5
          I have the stock 34's on my 1170 and it runs perfectly. I think you have too much carb. IMO.

          Comment

          • enelson2047

            #6
            Finely got her started but run like crap but if I hold the choke out it run great or it sound like it good. It sound real strong. What do this mean?????????????

            Comment

            • tom203
              Forum Guru
              Past Site Supporter
              • Aug 2010
              • 8925
              • Norway,Maine

              #7
              Originally posted by enelson2047
              Finely got her started but run like crap but if I hold the choke out it run great or it sound like it good. It sound real strong. What do this mean?????????????
              Remember those replies about the carbs being big?
              1981 gs650L

              "We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin

              Comment

              • Big T
                Forum LongTimer
                Past Site Supporter
                Super Site Supporter
                • Mar 2005
                • 12392
                • West Slope, OR

                #8
                Originally posted by enelson2047
                Finely got her started but run like crap but if I hold the choke out it run great or it sound like it good. It sound real strong. What do this mean?????????????
                If by "out" you mean you have the choke on, you're too lean or your jets are plugged up

                The choke is actually an enrichener circuit, so it's adding more fuel
                1978 GS 1000 (since new)
                1979 GS 1000 (The Fridge, superbike replica project)
                1978 GS 1000 (parts)
                1981 GS 850 (anyone want a project?)
                1981 GPZ 550 (backroad screamer)
                1970 450 Mk IIID (THUMP!)
                2007 DRz 400S
                1999 ATK 490ES
                1994 DR 350SES

                Comment

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