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Help ZXR250A Fork Preload

Discussion in 'Kawasaki 250cc In-line 4's' started by Rossco_Perth, May 1, 2017.

  1. Rossco_Perth

    Rossco_Perth Confirmed Tinkerer :)

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    Hi All,

    I've searched on these forums & googled until my eyes bled.... still can't find the info i'm looking for....

    My bike is an 89 ZXR250A.

    The fork preload adjustment doesn't seem to have a reference like the lines on the ZXR250C style forks.
    Can someone clarify the adjustment process for the 'A' style forks?
    I.e How many turns for factory settings, which way from that point to stiffen them up?

    This is my adjuster type -
    DSCF2794.jpg

    This is the 250c style
    no51-ZX2R-ZXR250-1995-left-and-right-Forklegs-and-triple-3.jpg
     
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    Rossco_Perth, May 1, 2017
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  2. Cbuzz

    Cbuzz Well-Known Member Dirty Wheel Club

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    Ahh, nevermind. Didn't read properly.
     
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    Last edited: May 9, 2017
    Cbuzz, May 9, 2017
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  3. kiffsta

    kiffsta Senior Member

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    sorry I missed this thread, is it better now ?
     
    kiffsta, May 9, 2017
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  4. Cbuzz

    Cbuzz Well-Known Member Dirty Wheel Club

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    So I pulled one of these apart the other day. There is a screw inside the fork that can be adjusted up & down. Ensure there is 12mm thread visible.
    Capture.png
    12mm.gif
    20170509_190450.jpg

    The C fork is basically identical besides that end piece. I start at 8 clicks anticlockwise out from hard clockwise & adjust clockwise until it works for me. I've got mine set to 5 clicks out from hard clockwise.

    I think 6 clicks out is for 65kg rider.
     
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    Cbuzz, May 9, 2017
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  5. Rossco_Perth

    Rossco_Perth Confirmed Tinkerer :)

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    Thanks for that Cbuzz!

    I'm 80kg & have them 2 clicks off max now, they're still pretty soft.

    I'll probably rebuild them over winter & have a play with a spacer & oil weight.


    Sent from my iPhone using Tapatalk
     
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    Rossco_Perth, May 9, 2017
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  6. sharky

    sharky Well-Known Member

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    Whats the rear suspension set at? 80kgs should be #4, any higher(stiffer) will make the front feel softer.
     
    sharky, May 9, 2017
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  7. Rossco_Perth

    Rossco_Perth Confirmed Tinkerer :)

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    I'll check tonight



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    Rossco_Perth, May 10, 2017
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