Low rpm engine hesitation

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  • turbodave_98
    XSive
    • Feb 2003
    • 59
    • Rancho Cucamonga CA, USA

    #1

    Low rpm engine hesitation

    I have a light hesitation on my 80 G model. after warmup it seems to be gone. Do I have a problem with:
    Carb sync?
    old plugs?
    other??
    Have not changed the plugs and am getting about 40 mgp around town and road. Appreciate any assistance. Thanks
    Turbodave:
    Running Against the Wind

    Never forget our POWs/MIAs

    Iron Butt Association #14500
  • DiverRay
    Moderator
    • Nov 2004
    • 7603
    • Star, IDAHO

    #2
    It could be the plugs are out a little larger than spec. on the gap, and or the pilot jet is just a little lean until the bike warms up. The plugs are the easy "first fix", so I would start there.
    Ray
    Ray Matteis
    KE6NHG
    XS1100 E '78 (winter project)
    XS1100 SF Bob Jones worked on it!

    Comment

    • webbcraft2150
      XS-XJ Guru
      • Sep 2002
      • 1605
      • AUSTIN.TX

      #3
      These beasts seem to be cold blooded. Checking and fixin, if needed, old plugs, carb sync, ect would be a good place to start. Could even be a low battery. I know when I ride mine around in town for a week, I can never get the battery to fully charge so I will stick it on the maintenance charger a couple times a week. Of course,on weekends, a nice 2hr ride at speed in the morning is THE BEST way to charge a battery.
      When a 10 isn't enough, get a 11. 80g Hardbagger

      Comment

      • turbodave_98
        XSive
        • Feb 2003
        • 59
        • Rancho Cucamonga CA, USA

        #4
        Thanks to both of you for the info. Will start with the plugs.
        Turbodave:
        Running Against the Wind

        Never forget our POWs/MIAs

        Iron Butt Association #14500

        Comment

        • missinglink
          XSive
          • Oct 2004
          • 59
          • Middletown, Delaware

          #5
          FWIW. I had an issue where I had a hesitation around 2.5K to 3K rpm. I chased it around until I found that the two caps on the vacuum ports on cylinders 1 and 4 had hardened to the point that they weren't completely sealing the ports. I replaced those caps and the problem went away...
          Missing Link
          Keep the Shinny Side UP!!

          Comment

          • turbodave_98
            XSive
            • Feb 2003
            • 59
            • Rancho Cucamonga CA, USA

            #6
            Thanks for the vacuum tip. Had not thought of that.
            Turbodave:
            Running Against the Wind

            Never forget our POWs/MIAs

            Iron Butt Association #14500

            Comment

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