coils?

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  • bcknblkbird
    Truly XSive
    • Mar 2009
    • 124
    • jonesville nc

    #1

    coils?

    starting my xj cold only runs on 1&4 after a while of playing with it 2&3 kick in and it runs fine. got pods & a mac 4 into 1 w/baffle did search on coils found a couple of possibilitys am i barking up the right tree? thanks
  • bcknblkbird
    Truly XSive
    • Mar 2009
    • 124
    • jonesville nc

    #2
    coils?

    am i fouling 2&3 too much choke? thanks again!

    Comment

    • Crazcnuk
      XS-XJ Guru
      • Aug 2006
      • 2980
      • Hinton, AB, Canada

      #3
      What do the sparkplugs look like if you start it and let it run until the other 2 cylinders kick in?

      Have you adjusted the idle mixture screws?

      #2&3 are on the same coil, so I would suspect more of a coil/ignition issue than fuel, but fuel is easiest to check.
      Nice day, if it doesn't rain...

      '05 ST1300
      '83 502/502 Monte Carlo for sale/trade

      Comment

      • DGXSER
        Doctor of XSology(Deceased)
        • Nov 2008
        • 12001
        • Cincinnati, Ohio

        #4
        Other option is if someone put larger jets in 2 and 3 due to them being internal for cooling. Especially if they were cornfused and used larger pilot jets.
        Life is what happens while your planning everything else!

        When your work speaks for itself, don't interrupt.

        81 XS1100 Special - Humpty Dumpty
        80 XS1100 Special - Project Resurrection


        Previously owned
        93 GSX600F
        80 XS1100 Special - Ruby
        81 XS1100 Special
        81 CB750 C
        80 CB750 C
        78 XS750

        Comment

        • XJOK2PLAY
          XS-XJ Guru
          • Jan 2009
          • 2099
          • Skiatook, Ok.

          #5
          My guess is your on the right track thinking a coil's the culprit. Sounds like it's lazy, and has to heat up to get it to work.

          I've also seen coils act the opposite... (quits working when it gets hot...)

          IMHO
          Good luck!
          '82 XJ1100J Maxim (has been sold.)

          '79 F "Time Machine"... oh yeah, Baby.... (Sold back to Maximan)

          2011 Kaw Concours 14 ABS

          In the warden's words from Cool Hand Luke;
          "What we have here is a failure to communicate."

          Comment

          • tw1980
            XSive Maximus
            • Apr 2009
            • 662
            • Bend OR

            #6
            Originally posted by XJOK2PLAY
            My guess is your on the right track thinking a coil's the culprit. Sounds like it's lazy, and has to heat up to get it to work.

            I've also seen coils act the opposite... (quits working when it gets hot...)

            IMHO
            Good luck!
            Check the pickup wires as well and clean your plugs and connections.Don't forget to apply dielectric grease or anti seize after you clean the connections on the plugs.
            Terry
            1980 special (Phyllis)
            1196 10.5 to 1 kit,megacycle cams,shaved head,dynojet carb kit,ported intake and exhaust,mac 4 into 1 exhaust,drilled rotors,ss brake lines,pods,mikes xs green coils,iridium plugs,led lights,throttle lock,progressive shocks,oil cooler,ajustable cam gears,HD valve springs,Vmax tensioner mod

            Comment

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