07 YZ450 cracked frame

4 replies to this topic
  • 06WRRider

Posted October 04, 2009 - 07:31 PM


Just found a 3 inch crack in the weld at the bottom of the head tube. Will Yamaha help me out? If not can this be welded?

  • BBrown626

Posted October 04, 2009 - 07:35 PM


Don't know if yami will help, but we have had my son's frame welded at a local weld supply shop. Just need an experienced aluminum welder.

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  • grayracer513

Posted October 04, 2009 - 08:28 PM


I can almost assure that Yamaha won't help with that unless it was bought new less than 30 days ago. But it absolutely can be welded, and if welded by a competent individual, it will be plenty strong.

  • Polar_Bus

Posted October 05, 2009 - 02:58 AM


Wasn't there another few cases of the '06 and 07' frames developing cracks? Better keep and eye on mine I guess.. maybe do some magnaflux dye checking :busted:

  • grayracer513

Posted October 05, 2009 - 07:47 AM


I remember seeing reports only from owners of '07's, and I've never heard of one breaking or bending as a result of the crack.

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