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  • Engine miss

    I have 79 flh 80" 10 over SuperE 70 main 295 intermediate VT i single fire ignition and fish tails exhaust, I have a miss around 2500-3000 rpm range any ideas not a bad miss but I can feel it and kinda hear it in the exhaust any suggestions is it my ignition or the carb stuttering going from intermediate jet to main jet

  • #2
    Could be timing or plug gap. Do the plugs first. Howie
    don't forget to remember

    Life is like a roll of toilet paper,--The closer you get to the end the faster it goes!

    The Prowler

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    • #3
      Plug wire(s) condition? i had a bad miss that I could rev out of that turned out to be 1 bad plug wire on my single fire, dual plug head set-up. Good Luck
      Richard
      sigpic
      "I wouldn't like to be without either the old fashioned or the newer attitude.
      There are too many excellent things in both schools".
      Vincent van Gogh, 1882

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      • #4
        Is this something that has just started happening or has it been a long term thing. What have you done to try to correct it?
        Welcome to this mess.
        S.E. Wisconsin - I-43 and Racine Ave
        78 FXS 74" 4 speed
        79 FXE basket

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        • #5
          I would check the plugs first, easy enough but if you have an S&S I am always suspect of them doing that and that is the rpm range right where they do that...
          My Website: www.amcpchoppers.com

          sigpic:

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          • #6
            Open fishtails will do it also.
            1985 FLHP

            Lancaster, MA

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            • #7
              Originally posted by 85FLH View Post
              Open fishtails will do it also.

              ...especially with an S&S. May be ignition but if I were to do a blind guess I would say that one ball from a Krome Werks baffle in each pipe would fix it!
              My Website: www.amcpchoppers.com

              sigpic:

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              • #8
                Well, considering the original post was from Nov. 12th and haven't heard anything from the OP, I'll assume he fixed the problem or doesn't need any more advice.

                But............................I could be wrong.!!!!!!!!


                EDIT: I just noticed it was his first post on the forum and no more feedback. Fuck it.
                1985 FLHP

                Lancaster, MA

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                • #9
                  I used to have a 1974 FLH in the late 1970s, and it had misfire at speed that would drive me nuts. Turned out at certain revs the coil cover would contact the top coli terminal...

                  1974 FLH

                  1998 XLH1200 street tracker

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                  • #10
                    a bit lean,

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                    • #11
                      RandyG
                      Member
                      Last Activity: 11-14-2018, 12:12 AM
                      Joined: 11-12-2018


                      No doubt about it, he needs an engine.
                      S.E. Wisconsin - I-43 and Racine Ave
                      78 FXS 74" 4 speed
                      79 FXE basket

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                      • #12
                        Like the Tin Man from the Wizard of OZ.............He's looking for a Brain.

                        And I know for sure, nobody here can spare one.!!!!!!! Hell, I operating on a partial brain these days.
                        1985 FLHP

                        Lancaster, MA

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