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    #1

    Rear master cylinder parts question

    Hi I have just received a rear master cylinder kit on stripping the master cylinder I cannot find one of the parts fitted to my cylinder that is included in the kit. I have looked on the microfiche and cannot locate it in SCHEMATICS http://www.cmsnl.com/suzuki-gs850-g-1980-1981-usa_model16057/partslist/95205.html#results

    the part I am talking about is the one at the bottom of the picture that has a small brass pip in the centre
    any help where this part fits would be appreciated.
    image.jpg
    Last edited by fastbysuzuki; 11-17-2015, 07:29 PM.
    The big guy up there rides a Suzuki (this I know)
    1981 gs850gx

    1999 RF900
    past bikes. RF900
    TL1000s
    Hayabusa
    gsx 750f x2
    197cc Francis Barnett
    various British nails
    Tags: None
    #2
    Not used on a GS. The spring goes in, then the cup with the flat bottom facing the open end of the bore, then the brass buffering plate, then the piston. Thats probably a universal kit and thats just in the kit. That or you got the wrong kit.
    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

      #3
      Note the order here on the fiche...


      404, Page Not Found
      http://www.partsoutlaw.com/oemparts/a/suz/50d40183f8700230d8b4e4f8/rear-master-cylinder
      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

        #4
        The part you are talking about snaps/pushes onto the large end of the spring.
        Insert that attached to the large end of the spring into the bore first. Then the rubber cup goes in next with the smoothed end facing out. Then the piston with the concave metal cup facing out. There is no brass disk.
        (This is how my 850 is) I also saw a picture posted by ed that shows this same order.

        Comment

          #5
          Hi guys thank you for the replies, it seems there may be different configurations I did not find any brass disc or the part with the brass pip in my cylinder (I have had this bike since it was 3 years old) is I am confident it has not been messed with, but I am confused though. I did order the kit for a 81 bike.
          i found the picture from ed on re-examination of the old bits sure enough the piece was stuck in the spring I do not know how I missed that!!!! The build is as ed's picture and as loud et described.
          just glad I did not put it on the bike.
          thanks to all for the replies.
          note to me look closely next time.
          Last edited by fastbysuzuki; 11-18-2015, 07:38 AM.
          The big guy up there rides a Suzuki (this I know)
          1981 gs850gx

          1999 RF900
          past bikes. RF900
          TL1000s
          Hayabusa
          gsx 750f x2
          197cc Francis Barnett
          various British nails

          Comment

            #6
            Ed

            To measure is to know.

            Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

            Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

            Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

            KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

            Comment

              #7
              The one on Matts GS 1100 must be missing that rubber thing because it wasnt there when we cleaned out his master cylinder. just the bare end of the spring down the bore far as i remember it. May bot be a big though. That rubber thing sort of looks like just a buffer between the spring end and the end of the hole.

              I see now that it has holes for fluid to pass thru..which i didnt pay that close attention to the thumbnail in post 1...sorry.
              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

                #8
                Originally posted by Nessism View Post
                Yep that's the picture. I just rebuilt my rear master cylinder 3 days ago and I searched all the threads and found this picture Ed.
                I tried to upload it to my photobucket to share for this guy but it wouldn't allow me for some reason. Thanks for posting that.

                Comment

                  #9
                  Originally posted by chuck hahn View Post
                  The one on Matts GS 1100 must be missing that rubber thing because it wasnt there when we cleaned out his master cylinder. just the bare end of the spring down the bore far as i remember it. May bot be a big though. That rubber thing sort of looks like just a buffer between the spring end and the end of the hole.

                  I see now that it has holes for fluid to pass thru..which i didnt pay that close attention to the thumbnail in post 1...sorry.
                  Chuck just to clarify the piece in question is metal and what appears to be holes are indentations it is difficult to see how the fluid gets past to the calliper.
                  Last edited by fastbysuzuki; 11-18-2015, 05:42 PM.
                  The big guy up there rides a Suzuki (this I know)
                  1981 gs850gx

                  1999 RF900
                  past bikes. RF900
                  TL1000s
                  Hayabusa
                  gsx 750f x2
                  197cc Francis Barnett
                  various British nails

                  Comment

                    #10
                    Looked like holes to me. In any case maybe Matts was missing a part. The brake works fine though as is.
                    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

                      #11
                      The internals of my 77 rear MC look just like the pic Ed posted as well.
                      Jordan

                      1977 Suzuki GS750 (My first bike)
                      2000 Kawasaki ZRX1100
                      1973 BMW R75/5

                      Comment

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