'03 450 front axle bent?

10 replies to this topic
  • John407

Posted March 09, 2007 - 11:40 AM


When I have the front wheel in place (but not tightened up) on my bike, and I turn (spin) the axle the top of the wheel moves. The axle is slightly tighter to turn at a couple of spots in it's rotation. The axle looks straight to me, but when I thighten everything up the brakes drag more with the axle in certain positions than in others. The bearings seem good. What do you guys think? Should I just buy a new front axle and see? Thanks

  • grayracer513

Posted March 09, 2007 - 12:44 PM


Roll the axle on a sheet of glass, or rest it in a pair of V blocks and spin it with a dial indicator at mid point.

  • 642MX

Posted March 09, 2007 - 12:49 PM


I've bent 2 axles on my 426. I'm not sure how I did it, but both made the front wheel seem like the bearings where locking up. They are cheap enough that I carry an extra in my trailer.

  • John407

Posted March 10, 2007 - 11:07 AM


Thanks for the reply guys.

  • Ga450owner

Posted March 10, 2007 - 05:41 PM


sometimes a improper aligned fork will cause this

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  • John407

Posted March 11, 2007 - 10:41 AM


I'm back to thinking that it's the axle itself. I put the front axle out off of my '04 KXF (it's the same diameter just too short to use). With the kxf axle in place all of the alignment issues went away. It looks like the yz axle is bent (just a little) where it comes out of the rh (non brake side) fork clamp. Fat guys with aluminum axles don't mix I guess.

  • 642MX

Posted March 11, 2007 - 12:07 PM


Fat guys with aluminum axles don't mix I guess.

Maybe thats my problem. :applause: (225lbs)

  • grayracer513

Posted March 11, 2007 - 01:50 PM


The '03 YZF axle is not aluminum.

  • John407

Posted March 11, 2007 - 07:24 PM


The '03 YZF axle is not aluminum.

Of course you're right, but I couldn't bring myself to say I'm too fat for a steel front axle. (didn't mean to mislead anyone)

  • grayracer513

Posted March 11, 2007 - 08:20 PM


Too FAST for a steel axle...:applause:

  • John407

Posted March 12, 2007 - 07:55 PM


Too FAST for a steel axle...:applause:

I like that better. :lol:

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