Fork Seals. OEM verses aftermarket kits.

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  • dorkburger
    Forum LongTimer
    Past Site Supporter
    • Jan 2013
    • 10770
    • Stupid Freehold Boro NJ

    #16
    Great, thanks...
    sigpic
    When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

    Glen
    -85 1150 es - Plus size supermodel.
    -Rusty old scooter.
    Other things I like to photograph.....instagram.com/gs_junkie
    https://www.instagram.com/glen_brenner/
    https://www.flickr.com/photos/152267...7713345317771/

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    • dorkburger
      Forum LongTimer
      Past Site Supporter
      • Jan 2013
      • 10770
      • Stupid Freehold Boro NJ

      #17
      Well, I looked at my crusty old parts bike forks that I believe to be original and found the seals as I described. Maybe another 1150 anomaly... who knows. I?m just go to pretend all is fine in 1150 land....
      sigpic
      When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

      Glen
      -85 1150 es - Plus size supermodel.
      -Rusty old scooter.
      Other things I like to photograph.....instagram.com/gs_junkie
      https://www.instagram.com/glen_brenner/
      https://www.flickr.com/photos/152267...7713345317771/

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      • RichDesmond
        Forum Sage
        Past Site Supporter
        • Jul 2011
        • 2757
        • NoVa

        #18
        One other thing on fork seals. One of the big reasons they leak is the tiny nicks and dings that accumulate on the leading edge of the fork tubes, from rocks and other crap kicked up by cars in front of you. Those nicks have sharp edges, and they cut up the sealing surface of the fork seals. If you put new seals in and don’t take care of the nicks, your new seals won’t last very long.
        Take some extra fine steel wool and lightly buff out the tubes. You don’t need to make the nicks disappear, just smooth out the edges. DON’T buff so hard that you go through the chrome!!
        If you do this periodically your seals will last a lot longer.
        '20 Ducati Multistrada 1260S, '93 Ducati 750SS, '01 SV650S, '07 DL650, '01 DR-Z400S, '80 GS1000S, '85 RZ350

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        • gustovh
          Forum Guru
          Past Site Supporter
          • Oct 2006
          • 5000
          • Vernonia

          #19
          Another reason for failing seals is.....your lowers might just be shot inside, it has happened to me. Seal would start leaking in less than a thousand miles.

          V
          Gustov
          80 GS 1100 LT, 83 1100 G "Scruffy"
          81 GS 1000 G
          79 GS 850 G
          81 GS 850 L
          83 GS 550 ES, 85 GS 550 ES
          80 GS 550 L
          86 450 Rebel, 70CL 70, Yamaha TTR125
          2002 Honda 919
          2004 Ural Gear up

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          • fastbysuzuki
            Forum Mentor
            Past Site Supporter
            • Nov 2012
            • 996
            • Wyre, Lancashire.uk

            #20
            You should not go wrong with the Oem seals I have gone away from them as I found seals that are a lot better quality than the Oem things have moved on since the 80 s the link is for the seals they have a double sealing lip these are in the uk

            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

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            • Redman
              Forum LongTimer
              Past Site Supporter
              • Mar 2004
              • 13730
              • Michigan, west Michigan

              #21
              Existing seal is hard. I just lifted it out with my fingers. Can barley detect any lip or edge.



              New OEM seal, is soft but seems to have a metal ring inside it. Can feel a couple seal-flaps-edges.
              I wetted the side with some fork oil.

              Had to whapp it pretty hard a few times with the driver tool to get it down inplace enough to get it below the grove for the wire clip.
              http://webpages.charter.net/ddvrnr/GS850_1100_Emblems.jpg
              Had 850G for 14 years. Now have GK since 2005.
              GK at IndyMotoGP Suzuki Display... ... GK on GSResources Page ... ... Euro Trash Ego Machine .. ..3 mo'cykls.... update 2 mocykl


              https://imgur.com/YTMtgq4

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              • Grimly
                Forum Guru
                Past Site Supporter
                Super Site Supporter
                • Sep 2012
                • 5771
                • Ireland

                #22
                Originally posted by fastbysuzuki
                You should not go wrong with the Oem seals I have gone away from them as I found seals that are a lot better quality than the Oem things have moved on since the 80 s the link is for the seals they have a double sealing lip these are in the uk

                https://simplybearings.co.uk/shop/p3...duct_info.html
                That's very useful, ta. I didn't know they did fork seals. They supplied me with Viton o-rings for the carb flanges, though.
                Dave
                '79 GS850GN '80 GS850GT
                Only a dog knows why a motorcyclist sticks his head out of a car window

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