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    Suspension questions

    When I took apart the forks last year I found out that the springs were 500mm in length. They seemed awfully long for an 850G and quite soft even after I changed to 15W oil. I would like to shorten them and go to 20W oil but I need recommendations as to how much I should cut off. I'm not sure if they are Progressive since I checked their site and I can't find any that length. I weigh a slender 260lb.

    I would also like to change the springs on the rear shocks. The originals are leaking but the springs are OK so I'd like to put the springs on a set of Progressives I got on the cheap because they have some really soft springs. I looked but I could not find a thread on how to take apart the rear shocks in order to replace the springs. Could somebody give me some instructions?

    Thanks,

    Raz

    #2
    Hi,

    See this thread:
    This forum contains old posts which may have information which may be useful. It is a closed forum in that you can not post here any longer. Please post your questions in the other technical forums.


    Basically, if you cut an inch and a half or so from your fork springs, add spacers of extra length to make up the difference and increase the preload.

    You will need a spring compressor to change springs on your shocks. You can actually make your own spring compressor with some parts from the hardware store; a couple of pieces of all-thread, a few bolts, a couple of flat pieces of metal to put the all-thread through and compress the springs with the bolts.


    Thank you for your indulgence,

    BassCliff

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      #3
      Make that 4-5 inches off the springs. And you might want to change the various seals so you can run air too in case that's not enough.
      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

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

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        #4
        ...and progeressive springs will have a different coil length and spacing near one end or another or both.

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          #5
          Beauty!! Now how exactly do I dismantle the rear shocks?

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            #6
            compress the springs in some manner.and theres a slot in the top cap that will let you slide it off the shaft of the shock. release the spring and disassemble the shocks..polish everything before reassembly and thats that.
            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.

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