Breaking up

2 replies to this topic
  • BC179

Posted June 11, 2004 - 05:06 AM


My 04 yz450 keeps breaking up in the uper rpm's, it is not real bad but it is noticeable. It also breaks up when coming out of a corner if there is any bad acceleration bumps. It did not start doing this until the ignition cover got hit by another bike. When I replaced the cover there was no visual damage to the internals. It just feels like it is running lean up top. Any ideas been trying to figure it out for a while.

04 YZ450
03 YZ450
03 XR50

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  • John_Lorenz

Posted June 11, 2004 - 05:13 AM


inspect the wireing at the stator, through the cases and up the frame. Make sure they are intact. If the cover took a hit hard enough to break, then I would look extremely close at the stator, making sure nothing is bent, touching, cracked or ???

All I can offer for suggestions outside of doing Ohms tests may show something, the Manual should explain what is spec and how to test

  • sirthumpalot

Posted June 11, 2004 - 04:50 PM


If the crash started the problem then it might be related. The best way to know for sure is to find a "good buddy" with the same bike and see if he will let you borrow his stator for a quick test.

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