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    i am a new owner of a 1979 xs1100. im not sure of what the different models are, all i know is that its a 79 and a xs1100. it wont idle and it has a bad misfire in one of the two cylinders on the left side. it has spark. but it seems like its not burning all the fuel on that side. i was told that is hard to work on the carbs on this bike but i would really like to be able to ride this bike some day, any ideas or suggestions would be greatly appreciated. thank you in advance.

  • #2
    Well, as it's summer, and I KNOW you don't ride in January, I've been in Plattsburg in January! I'd say you need to rebuild he carbs. Georgefix on ebay is the guy for the kits, and if you put the first three characters of your VIN we can tell if it's a standard or Special. (2H7 is standard) It's NOT hard to work on the carbs, it's just hard for a SHOP to do a proper job of it! Look through the "tech tips", and you should get a better idea of what you are needing to do. My first thought is you have #1 or #2 with a stuck float, or a bad float, and the fuel is just running through the carb un-metered.
    You will find a LOT of information here, you just need to look through the site, and pick out the bits you need.
    Welcome to the MADNESS
    Ray Matteis
    KE6NHG
    XS1100 E '78 (winter project)
    XS1100 SF Bob Jones worked on it!

    Comment


    • #3
      welcome to the wonderful world of XS11!!

      there is everything you want to know on here and any data you could imagine.

      here are all the manuals you could ever want for your bike:
      (asuming yours is a special) (it would say special on the side covers)

      Vacuum gauge calibration instructions
      http://www.megaupload.com/?d=WC0A3044

      YamFactoryXS1100Manual.pdf
      http://www.megaupload.com/?d=ZXHFKEDY

      ShaftDriveManual.pdf
      http://www.megaupload.com/?d=42QVZYLC

      XS1100SFPartslist.pdf
      http://www.megaupload.com/?d=ZKDCH8AN

      Yamaha_XS1100_Owners_Manual.pdf
      http://www.megaupload.com/?d=7SRUNM0P
      Next

      Fork Air rail assembly
      http://www.megaupload.com/?d=6GAGY4TT

      1979 XS1100SF Factory Service and Tech Bullitins.doc
      http://www.megaupload.com/?d=A6T4FMMY

      and now the library of repairs

      Maintenance
      http://www.xs11.com/forum/forumdisplay.php?f=22

      Repairs
      http://www.xs11.com/forum/forumdisplay.php?f=23

      Modifications
      http://www.xs11.com/forum/forumdisplay.php?f=24



      Now... on to the important part..
      yes the carbs need to be gone through.

      You CAN do this.
      but you need 4 things to do the job right.

      (4)Carb rebuild kits
      Petcock rebuild kit (1 kit may contain parts for 2 petcocks, i forget.)
      Carb sync gauges (vacuum is easiest)(you'll need 2 or 4) (4 = easiest)
      http://www.harborfreight.com/fuel-pu...ter-93547.html
      Colortune tool http://cgi.ebay.com/ebaymotors/Color...item41505abbae

      these tools and parts will help you to tune your bike to top performance and avoid damage by running lean.

      please read and search the site freely
      i hope we can help you keep it on the road.
      1979 XS1100SF Special.78 E motor/carbs, Jardine 4-2 exhaust, XS Green coils, Corbin seat, S.S. Brake lines, Hard cases, Heated grips.

      2012 FJR1300 Gen 2. Heli bar risers, R-gaza crash bars, mccruise cruise control.

      (2)2008 WR250R. Because kids outgrew others.

      2007 Suzuki V-Strom 1000. (Just added 2024) pre-crashed.

      1975 Kawasaki S1 250. My first bike. Still have it. NO I'm not selling it!!

      Most bike problems are caused by a loose nut connecting the handlebars and the seat!!

      Comment


      • #4
        As has been stated, you need to identify which model and year bike it is to get the correct carb kits. Now, you may want to pull the carbs out and just go through them thoroughly first. You may find they just need a good cleaning, and you may find you need more parts than come in a rebuild kit.

        The VIN will decipher what year and model. Do not go form the POs info. I went to look at what was advertised as a 79 XS1100 and brought home an 81 special.

        The carbs are really ALOT simpler than many I have dealt with in the past.
        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


        • #5
          Serial # ID

          http://www.xs11.com/forum/showthread.php?t=396]

          Comment

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