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Steering Damper 1981 Seca 750

Discussion in 'XJ Technical Chat' started by jpcville, Aug 9, 2015.

  1. jpcville

    jpcville New Member

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    After rebuilding the master cylinder and installing new brake lines, I rode my bike for several weeks then noticed the steering damper was loose and flopping around. So a couple of questions:

    What is the difference riding without it?

    What is the correct way to reattach it? Where does the mount go on the fork and in which direction ? Anyone got some pics.

    Thx

    JP
     
    jpcville, Aug 9, 2015
    #1
  2. Polock

    Polock Well-Known Member

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    i had mine off for a while and didn't really notice any difference. they were in the fairing package i think, so a bare bike might not need them. they look cool though.
    i'll get some pictures later
     
    Polock, Aug 9, 2015
    #2
  3. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    They are not needed unless you have the touring package installed. I only notice a small amount of situational headshake on my unfaired 750 Seca at speeds that will get a body arrested in some states.
     
    k-moe, Aug 9, 2015
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  4. Polock

    Polock Well-Known Member

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    Polock, Aug 9, 2015
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  5. luvmy40

    luvmy40 Member

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    My '82 750 Maxim(no fairing) gets a death wobble when decelerating around 35mph. Not enough to be an issue in normal circumstances. It doesn't jerk the barks out of my hands but it is pronounced. New tires and the wheels are both static balanced and the steering head bearings are good. I may try a steering dampener.
     
    luvmy40, Aug 10, 2015
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  6. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Have you had the steering head apart to inspect the bearings and races? Have you removed and inspected the swingarm bearings? Wheel bearings inpspected? How about the forks and shocks?
    You should not have ANY headshake on deceleration from ANY speed. A steering dampener will only be masking the problem, not correcting it.
     
    k-moe, Aug 10, 2015
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  7. luvmy40

    luvmy40 Member

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    Wheel bearings are new last season(All Balls front and rear) but I did not inspect the steering head bearings through dis-assembly. Just feel, no catches or dead spots or slop discernible. It never occurred to me that the swing arm bearings could effect wobble.

    The forks are in need of rebuild, one oil seal leaks badly. I'll just replace the bearings when I tear it down this winter.
     
    luvmy40, Aug 10, 2015
    #7
  8. ManBot13

    ManBot13 Well-Known Member

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    Inspect them, regrease, and retighten. Save yourself some time and just order new ones, so you can replace them while you are in there ;)
    I inspected and regreased my Turbo Seca's original steering head bearings, they looked ok but the grease was nasty. Had the slightest shake at 42 mph, only noticeable when I took my hands off the bars (i.e. not that bad yet). Replaced with tapered roller bearings, and no wobble, at any speed, even with hands off.
     
    ManBot13, Aug 10, 2015
    #8

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