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  • Rear Master Cylinder

    Does anyone have a rear master brake cylinder? Please PM me with a price. Thanks in advance. Tim
    1979XS1100SF
    K&N's and drilled airbox
    Jardine 4in1
    Dunlop Elite 3's
    JBM slide diaphragms
    142.5 main jets
    45 pilot jets
    T.C.'s fusebox & SOFA
    750/850 FD mod.
    XV 920 Needle Mod.
    Mike's XS plastic floats set at 26mm
    Venture Cam Chain Tensioner

  • #2
    pm sent.....
    '80 XS 1100 Standard

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    • #3
      Looks like we both need one.

      The one I was going to sell you is froze up.
      And the one on my bike sucks air when you press the brake pedal.

      So that makes 2 of us looking for a master cylinder.

      Maybe someone can rebuild these for us? But I dont know how
      '80 XS 1100 Standard

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      • #4
        Have you found a rear master cylinder yet?
        BDF Special
        80SG Vetter bagger 1196 Wiseco big bore kit, Mega Cycle Cams, slotted cam gears, ported and flowed head, bronze intake seats, Dyno Jet kit, Dyno coils and Mikes XS air pods, Venture cam chain adjuster,Geezer's regulator, Clutch mod, Mac 4 into 1 with custom built and tuned baffle, Oil cooler,MikesXS emulators mod.
        Dyno tuned to 98 hp at the rear wheel.

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        • #5
          Nope i dont think either of us have
          '80 XS 1100 Standard

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          • #6
            I believe the rebuild kits can be had at Parts N more. Typically, they just need to be cleaned. the rear is a PITA to bleed the air out of though, so it would not shock me if you need to bleed it. I have succumbed to the vacuum pump for the rear MC.
            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

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            • #7
              I know mines bad... you can hear a sucking sound when you press down the brake lever. It starts to bleed but is very slow and never gets a good squirt out, just a dribble.
              '80 XS 1100 Standard

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              • #8
                Definitely just rebuild it. The rebuild kit is available at PartsNMore for $22 - P/N: 08-0216. Super simple fix. Just be sure to "Bench Bleed" it before putting it back on the bike.

                Just be glad you don't have the '81 MNS with a bad rear MC. That kit is made of unobtainium.
                1980 XS850SG - Sold
                1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
                Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
                Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

                Whether you think you can, or you think you cannot - You're right.
                -H. Ford

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