Fork springs.

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  • Marine36

    #1

    Fork springs.

    I just bought a set of Progressive fork springs. Paperwork says discard factory spacer. Does not say to put one back in and springs did not come with one.
    Anybody have any suggestions for the 83 1100 G. I'm well fed at 240LBS .

    Do I have to disable the anti dive to install the progressive springs. Are there any special instructions for removing fork with anti dive.

    Any help advice or puns would be greatly appreciated.

    And yes I searched first found all kinds of info but nothing specific to my 1100 but then again I am not all that search savvy.
    Last edited by Guest; 06-19-2009, 09:01 PM. Reason: I left out important stuff
  • Marine36

    #2
    Please Help!!!

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    • pano
      Forum Sage
      GSResource Superstar
      Past Site Supporter
      • Apr 2003
      • 1818
      • MA

      #3
      Not the same bike but I installed progressive springs on my 821100e and left the antidive intact.

      I did whatever the instructions said but i know I kept the spacer.

      I did not remove the forks but drained the oil by removing the drain bolt at the base of the fork.

      I just replaced the fork seals on my 1000s and removing the forks isn't an issue (even with the antidive) but you should have a manual for reference.
      1982 GS1000S Katana
      1982 GS1100E

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      • Marine36

        #4
        My Clymer manual fail to mention the anti-dive unit and how to remove the forks with it.

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        • pano
          Forum Sage
          GSResource Superstar
          Past Site Supporter
          • Apr 2003
          • 1818
          • MA

          #5
          I have a Suzuki manual.

          I split the antidive by removing the two allen bolts that hold the top half of the antidive to the bottom half.

          You do not remove the brake line.

          I was waiting for it to spew fluid but nothing leaked and it was dry inside even looked a little corroded.

          Does that make sense if you look at it?

          I don't have a center stand so i jacked the front end up, removed the front fender, calipers and tire. To remove the forks i split the antidive as described above.
          1982 GS1000S Katana
          1982 GS1100E

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          • bwringer
            Forum LongTimer
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            • Oct 2003
            • 17066
            • Indianapolis

            #6
            Well, if you have anti-dive forks, you don't have an 1100G. Or someone bolted 1100E forks onto your bike.

            Is there a greasy floppy chain thing back there that makes the rear wheel go, or is it a nice neat and clean shaft drive?


            Anyway, cutting new fork spacers is a bit of a crapshoot. With the forks extended and fork oil LEVEL set correctly, drop in the springs, add the washers, and see where you're at.

            If they're '83 1100E forks, you probably don't need to add a spacer. Just insert the preload adjuster and screw it in. It will take a bit of work, since you have to work against the springs to get the threads started. Set it to the middle position and measure sag. You want about 1.25 to 1.5 inches of sag (approximately 30-35mm) http://lmgtfy.com/?q=measure+fork+sag
            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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            • bonanzadave
              Forum Guru
              Past Site Supporter
              • Jul 2006
              • 9622
              • Minnesota

              #7
              Originally posted by bwringer

              If they're '83 1100E forks, you probably don't need to add a spacer. Just insert the preload adjuster and screw it in.
              Thats how I did my 82. No spacer. I left the anti dive alone but I do have stainless lines. At 240lbs I would use at least 15w oil. Set the pre load adjusters all the way up. Might smear some grease on the adjuster spring and threads and then screw them on. Make sure the bike is lifted up so the forks can extend all the way out. Front tire off the ground. I use a 3/8 drive ratchet with an extension and the proper socket. Handle bars have to be off. Not that hard. Set the pre load adjusters down to suit your ride.
              82 1100 EZ (red)

              "You co-opting words of KV only thickens the scent of your BS. A thief and a putter-on of airs most foul. " JEEPRUSTY

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              • Marine36

                #8
                Wow I am embarrassed!

                Brian you are correct. I have no antidive on this bike. Just an air balance tube.

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                • Nessism
                  Forum LongTimer
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                  • Mar 2006
                  • 35783
                  • Torrance, CA

                  #9
                  I suggest leveling the spacer/spring with the top of the fork tube with the fork fully extended. When you install the top cap the spring will compress about 3/4 inch. That's pretty much the standard method with the heavy shafty bikes like the 850. You can always add a longer spacer if you need more ride height.
                  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

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                  • bwringer
                    Forum LongTimer
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                    • Oct 2003
                    • 17066
                    • Indianapolis

                    #10
                    Setting preload (and sag) is sort of a trial and error thing. So try it first with whatever spacer length it takes to compress about an inch or so before engaging the threads, try it, measure sag, and then install new spacers if you need to.
                    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.

                    SUPPORT THIS SITE! DONATE TODAY!

                    Co-host of "The Riding Obsession" sport-touring motorcycling podcast at tro.bike!

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                    • Rover
                      Forum Sage
                      Past Site Supporter
                      • Mar 2009
                      • 1537
                      • Central Mass.

                      #11
                      Originally posted by Marine36
                      Brian you are correct. I have no antidive on this bike. Just an air balance tube.
                      We've all been there.
                      http://i632.photobucket.com/albums/u...00080021-1.jpg
                      1978 GS1000C
                      1979 GS1000E
                      1980 GS1000E
                      2004 Roadstar

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