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front end shake

Discussion in 'The Garage' started by crash, Sep 15, 2009.

  1. crash

    crash XS650 Junkie

    finished a xs650 two weeks ago been riding to break in had stock bars everything ok,switched to 14 inch apes rode yesterday went to stop when i hit the brake bad front end shake let off brake shake goese away hit brake shakes agian (rear brakes only) can anyone help ,thanks
  2. Do you have tapered steering head bearings installed? They make a huge difference.
  3. crash

    crash XS650 Junkie

    yes and even have fork braces on lower legs,bushings in risers are good to,anyone have any other ideas thanks
  4. Frank The Tank

    Frank The Tank XS650 Enthusiast

    Is the wheel not balanced or wore funny? Bent rim? Maybe the forks are slightly tweaked in the triple trees and brace. Maybe try to get the front end up in the air and loosed the pinch bolts for the triples trees and fork brace then line everything up and tighten it all down.

    Maybe when you put the races in for the steering head the cups didn't seat all the way or didn’t seat straight so it wants to pull to one side. Is there any play in the front end when you have the front off the ground and you grab the forks and push and pull them? With the front end off the ground, is it stiff to turn one way?

    Other than that, the only thing I can think of is something internally in the forks. Like maybe one is missing a spacer or has a shorter spring or something. I don’t know, just throwing it out there. I'm not sure if that would cause wobble problems or not.

    One last idea. If the frame has been modified, could the neck not be lined up perfectly vertically relative to the rear axle? Is the frame raked or hardtailed? Could be something with the alignment or the geometries of the head tube like rake and trail.
    Last edited: Sep 15, 2009
  5. crash

    crash XS650 Junkie

    thanks for all the ideas ,will check all that today ,
  6. Did you ever get this figured out?
  7. crash

    crash XS650 Junkie

    no ,we have been worken on other bikes,will get back on that bike later next week will keep you posted thanks.
  8. crash

    crash XS650 Junkie

    thanks for the help ,i found the front tire had gotten put on backwards ,switch back no more shake
  9. Never thought of that. I guess it would be pretty easy to mix up when you aren't running a front brake! Thanks for the update. Glad you figured it out!

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