Bike RUNS!

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  • somesuch
    Truly XSive
    • Jun 2007
    • 145
    • San Jose CA

    #1

    Bike RUNS!

    I finally finished my 79 Special. Rode it around for about 40 mi and it runs good. Some small things made themselves obvious, but generally all is well.

    Compression pressure seems unusually high at 180-180-178-180. I just did the valve job, so I know there is no carbon in there. The pistons/everything else looked stock .... The bike runs a bit stronger than the last XS11 that I had (81 SH) or maybe it is just my memory. Carbs are a bit lean all around, except for idle, so I'll raise the needles and go one up from 137.5 on the mains. I have an in-box K+N and a MAC 4-into-1


    ProTaper dirtbike handlebars seem to be a real nice addition, but I would have to go on longer rides to see how they work out.

    Nice surprise was that neither clutch slipped!


    thanks all for the help.
    --Nick
  • 81xsproject
    XS-XJ Super Guru
    • Nov 2004
    • 3185
    • Fortuna, CA

    #2
    You might consider going up at least two sizes. Personally, I have had great success with THIS formula for jetting, not to mention seeing it either linked to or quoted on different sites and forums all over the web.
    '81 XS1100 SH

    Melted to the ground during The Valley Fire

    Sep. 12th 2015

    RIP

    Comment

    • skids
      XS-XJ Super Guru
      • Jul 2002
      • 5047
      • Florissant, CO, USA

      #3
      Denny...a carb god!

      Originally posted by 81xsproject
      You might consider going up at least two sizes. Personally, I have had great success with THIS formula for jetting, not to mention seeing it either linked to or quoted on different sites and forums all over the web.
      Skids (Sid Hansen)

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

      Comment

      • DiverRay
        Moderator
        • Nov 2004
        • 7604
        • Star, IDAHO

        #4
        Nick,
        Now that it's running, head over 17 and down 1 to my place, and I can sync the carbs for you! I commute 17 every day on my '79 Standard. I work at 85 and Union.
        Send me a pm if you need any help with the bike.
        Ray Matteis
        KE6NHG
        XS1100 E '78 (winter project)
        XS1100 SF Bob Jones worked on it!

        Comment

        • somesuch
          Truly XSive
          • Jun 2007
          • 145
          • San Jose CA

          #5
          81xsproject, thank you for this link. I saw it long ago but forgot all about it.

          Looks like soon I'll be ready for and R1 shock upgrade

          --Nick

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