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GURU's I NEED HELP!!!

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  • #1

    GURU's I NEED HELP!!!

    Ok so I dont have time to search about carb stuff but Im having a problem.
    My #1 carb is spitting back air and sometimes gas. WHATS THE DEAL!?

    valves are shimmed and carbs are rebuilt and also have new coils on it.

    THANKS Y'ALL
    Last edited by kirmit77; 07-24-2009, 06:45 AM. Reason: obama made me change
    Austin Ingalls

    MIDNIGHT FURY
    1979 XS1100 Special [Full Restore Project]
    XJ maxim rear air shocks
    KERKER 4-into-1 exhaust
    Pod Filters

    Money pit.......
    BLACKED OUT
    Tags: None
  • #2
    Check compression on that cylinder. It's easy to not get one shimmed right that hasn't run.. .either that, or you have a bent/hanging valve. For some reason, your compression stroke is getting past the intake valve.


    Sorry...

    Tod
    Try your hardest to be the kind of person your dog thinks you are.

    You can live to be 100, as long as you give up everything that would make you want to live to be 100!

    Current bikes:
    '06 Suzuki DR650
    *'82 XJ1100 with the 1179 kit. "Mad Maxim"
    '82 XJ1100 Completely stock fixer-upper
    '82 XJ1100 Bagger fixer-upper
    '82 XJ1100 Motor/frame and lots of boxes of parts
    '82 XJ1100 Parts bike
    '81 XS1100 Special
    '81 YZ250
    '80 XS850 Special
    '80 XR100
    *Crashed/Totalled, still own

    Comment

    • #3
      You have a broken exhaust system? Maybe a broken weld under the heat guard by one of the foot pegs?
      Skids (Sid Hansen)

      Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.

      Comment

      • #4
        no tod got it

        thanks
        Austin Ingalls

        MIDNIGHT FURY
        1979 XS1100 Special [Full Restore Project]
        XJ maxim rear air shocks
        KERKER 4-into-1 exhaust
        Pod Filters

        Money pit.......
        BLACKED OUT

        Comment

        • #5
          Shimmed wrong.. or bent valve?


          Tod
          Try your hardest to be the kind of person your dog thinks you are.

          You can live to be 100, as long as you give up everything that would make you want to live to be 100!

          Current bikes:
          '06 Suzuki DR650
          *'82 XJ1100 with the 1179 kit. "Mad Maxim"
          '82 XJ1100 Completely stock fixer-upper
          '82 XJ1100 Bagger fixer-upper
          '82 XJ1100 Motor/frame and lots of boxes of parts
          '82 XJ1100 Parts bike
          '81 XS1100 Special
          '81 YZ250
          '80 XS850 Special
          '80 XR100
          *Crashed/Totalled, still own

          Comment

          • #6
            ok so now it runs but if i try to poen her up it bogs under choke and "non" choke. WHATS UP???
            Austin Ingalls

            MIDNIGHT FURY
            1979 XS1100 Special [Full Restore Project]
            XJ maxim rear air shocks
            KERKER 4-into-1 exhaust
            Pod Filters

            Money pit.......
            BLACKED OUT

            Comment

            • #7
              Hey Kirmit,

              Are you able to get it to finally accept the throttle and the rpms will rise, or will it just not get over a certain rpm??

              Those 150 mains sound a bit rich for your setup? What are the settings for your pilot SCREWS...how many turns out? ALso, where is the vac. slide needle set....middle notch or what? And what are your float settings....stock 25.7mm or higher/lower?

              Also, have you checked your ignition timing with a light?
              T.C.
              T. C. Gresham
              81SH "Godzilla" . . .1179cc super-rat.
              79SF "The Teacher" . . .basket case!
              History shows again and again,
              How nature points out the folly of men!

              Comment

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