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Factory valve shim thickness?

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  • Factory valve shim thickness?

    I'm just wondering if anyone can tell me what sized valve shims come stock in a 1980 XS11 midnight special? I want to order the valve shim kit from bike bandit but am not sure what diameter they are or what thickness I need to order. It looks like on the drop down order list I need to select a range of thickness and the outside diameter. My bike has low miles and has probably never been re-shimmed.
    "The Hooligan" XJ1100, Virago Gauge Pods, Screaming Eagle Mufflers, K&N Filter, hand made rear fender, side covers, and solo seat, round bar conversion, small headlight, tail light, and cat eye turn signals, chip fuses, rewired the right way.

    Pics: http://s1236.photobucket.com/user/ya...?sort=6&page=1

  • #2
    Just like every crank and rod bearing, or cam journal, each bike is unique and none will have the same shims. You'll have to measure the gaps of what you have, then remove them and see what sizes you'll need.


    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
      Right on. I thought I might hear something like that. What about the outside diameter?
      "The Hooligan" XJ1100, Virago Gauge Pods, Screaming Eagle Mufflers, K&N Filter, hand made rear fender, side covers, and solo seat, round bar conversion, small headlight, tail light, and cat eye turn signals, chip fuses, rewired the right way.

      Pics: http://s1236.photobucket.com/user/ya...?sort=6&page=1

      Comment


      • #4
        They make a 29.5mm shim for some bikes. You can't tell the difference by looking, or even holding next to a 29mm, but it won't fit in the shim bucket. The ones you need are 29mm.


        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


        • #5
          Another supplier for valve shims, BB is usually expensive....

          http://www.crc2onlinecatalog.com/valve_shims.htm
          2H7 (79) owned since '89
          3H3 owned since '06

          "If it ain't broke, modify it"

          Comment


          • #6
            Thanks I just bookmarked that page.
            "The Hooligan" XJ1100, Virago Gauge Pods, Screaming Eagle Mufflers, K&N Filter, hand made rear fender, side covers, and solo seat, round bar conversion, small headlight, tail light, and cat eye turn signals, chip fuses, rewired the right way.

            Pics: http://s1236.photobucket.com/user/ya...?sort=6&page=1

            Comment


            • #7
              Use this source:

              We have our own shim library.

              http://www.xs11.com/forum/showthread.php?t=15826
              Guy

              '78E

              Quidquid latine dictum sit, altum videtur

              Comment


              • #8
                Originally posted by trbig View Post
                They make a 29.5mm shim for some bikes. You can't tell the difference by looking, or even holding next to a 29mm, but it won't fit in the shim bucket. The ones you need are 29mm.
                Tod
                He he he! I was just hit with a 29.5mm shim this week. I took a pair of shims down to the local bike shop to trade in for the needed thickness. One of the "new" ones turned out to be 29.5mm. I didn't know until I tried to put the other shim in. It just wouldn't fit!

                It was only only when I pulled it back out that I noticed that it didn't feel right. You might not be able to see the difference between the 29 and 29.5 shims, but they do feel different in your fingers. Thankfully, I didn't have any issues getting it exchanged for the correct shim, but it DID cost me an hour to drive to the other side of town and back
                -- Clint
                1979 XS1100F - bought for $500 in 1989

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