2003 YZ450f motor rebuild

2 replies to this topic
  • dirty03yz450

Posted August 20, 2007 - 07:41 PM


Has anyone heard of these motors going south on them and spining the needle bearing on the crank? Is this a common problem with these pigs? Thanks for all your help..

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  • grayracer513

Posted August 20, 2007 - 10:00 PM


Common, no. Does it happen? Once in a while.

  • dirty03yz450

Posted August 21, 2007 - 06:49 AM


Does anyone know of a good motor builder here in So Cal. San Diego area?

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