06 yz450f NO SPARK!

4 replies to this topic
  • Dirtbiker88

Posted May 24, 2013 - 06:16 PM


Hi, i just bought a 2006 yz450f knowing it had no spark just trying to figure out what the problem is. The guy i bought it from said the only thing he tried was changing the plug. So here's my question would it be the the CDI box or the coil is there a special way to figure this out? The guy said that it was the CDI box. But I don't know any help would be appreciated, thanks.

  • grayracer513

Posted May 24, 2013 - 08:34 PM


Start with a manual:



Have you checked to see if it actually has spark or not?

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  • Dirtbiker88

Posted May 24, 2013 - 09:29 PM


Yea I did it has none

  • Dirtbiker88

Posted May 25, 2013 - 01:21 PM


Anyone else got any thoughts what is more common to go out a CDI box or a coil??

  • Dirtbiker88

Posted May 26, 2013 - 01:56 PM


He are some pics of the wires not sure what happened to this yellow wire? ImageUploadedByThumper Talk1369604816.821658.jpg
ImageUploadedByThumper Talk1369605017.636367.jpg coil looks to be fine but I may be wrong?ImageUploadedByThumper Talk1369605093.916341.jpg ImageUploadedByThumper Talk1369605115.457922.jpg
Same thing with this wire ImageUploadedByThumper Talk1369605183.223127.jpg
What about these there all just it like one don't know if that's my problem ImageUploadedByThumper Talk1369605261.871473.jpg
ImageUploadedByThumper Talk1369605379.674268.jpg
Any help would be apriciated thanks!

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