Mystery part

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  • Guest
    #1

    Mystery part

    I'm reassembling the master cylinders for my 1981 650GL and have a mystery part remaining.

    The mystery part:


    It was with the pile of parts from the rear master cylinder but "could" belong to the front master, or maybe even the callipers. I was working and got distracted, dropped the part and put it back on the bench without realizing which pile it came from. It looks like it may fit into the end of the spring that goes into the cylinder, but none of the fiche drawings show that part. Can anybody help?

    Thanks!
    K
    Tags: None
    • Agemax
      Forum Guru
      • Apr 2008
      • 8371
      • plymouth uk
      #2
      its a dust cap for the bleed nipple
      1978 GS1085.

      Just remember, an opinion without 3.14 is just an onion!

        Comment

        • Guest
          #3
          Aha! That makes sense - the front calipers did not have one but the rear did.

          Thanks!
          K

            Comment

            • chuck hahn
              Forum LongTimer
              Past Site Supporter
              • May 2009
              • 25925
              • Norman, Oklahoma
              #4
              Agemax hit the nail on the head
              MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
              1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

              NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


              I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                Comment

                • bwringer
                  Forum LongTimer
                  Bard Award Winner
                  GSResource Superstar
                  Past Site Supporter
                  Super Site Supporter
                  • Oct 2003
                  • 17066
                  • Indianapolis
                  #5
                  This is a good example of why you should include something common for scale when posting pics of mystery parts.

                  For some reason, my weird brain thought that thing was about an inch across, and I was utterly baffled. A penny in the photo would have been helpful...
                  1983 GS850G, Cosmos Blue.
                  2005 KLR685, Aztec Pink - Turd II.3, the ReReReTurdening
                  2015 Yamaha FJ-09, Magma Red Power Corrupts...
                  Eat more venison.

                  Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.

                  Celeriter equita, converteque saepe.

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                    Comment

                    • Guest
                      #6
                      Originally posted by bwringer
                      This is a good example of why you should include something common for scale when posting pics of mystery parts.

                      For some reason, my weird brain thought that thing was about an inch across, and I was utterly baffled. A penny in the photo would have been helpful...
                      Good call. I'll do that from now on.

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