Shorted my Stator on exhaust

6 replies to this topic
  • deadstick

Posted June 05, 2014 - 08:06 PM


So I'm pretty embarrassed by this but I let my stator wire come in contact with my exhaust and it melted through and shorted 2 wires and melted my stator.   Its a 2007 YZ450F I have replaced the stator with a brand new one and just spent $130 on a new coil because my ohm reading said it was bad .4 well after buying the new one ( no returns on electrical components) it read .4 as well, lame. so before spending any more money I need some help. Obviously the CDI is the only thing left as I have tested the wiring harness and everything is good.  Any help from you gurus would be great.  I have not tested the throttle sensor yet, does would that have been harmed as well?



  • flyandride

Posted June 05, 2014 - 08:58 PM


Most multimeters are not all that accurate at low resistance.  And the manuals should say something like 0 to 1 ohm.  Now you have a spare coil or can sell it on ebay.  If in doubt about the TPS, disconnect it, as the bike will run without it.  

  • Mike in OK

Posted June 06, 2014 - 04:36 AM


Sorry to not be much help here but how did your hot pipe come into contact with your stator?

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  • Still Bill

Posted June 06, 2014 - 05:47 AM


You can never go wrong with a new coil!  I have chased gremlins that turned out to be a bad coil which tested as good more than once.


I assume you have no spark (you didn't actually say).  Have you actually checked for spark and put in a new plug, or is it just not starting?


Did you try disconnecting the kill switch?


If you fried the stator, I think it is possible that you also fried the CDI, but just guessing.  Is there a voltage regulator also?

  • deadstick

Posted June 06, 2014 - 06:02 AM


Ha that's the embarrassing part I didn't zip tie it in my rush to go ride. Yes the problem is I am not getting spark. I tried new plugs, I guess I'll start looking for a new cdi. And no it does not have a regulator, that I know of unless it is build into the cdi unit.

  • deadstick

Posted June 16, 2014 - 08:12 PM


So I got a new cdi and still no spark! I have tested the wiring harness, everything had connectivity. I have a new cdi, new stator from electro sport and a new coil. The only thing I have not tested is the tps, which should not affect spark I think? I am at my wits end with this one. Could the flywheel have lost polarity on the magnets or is there any other component to replace or check?!

  • deadstick

Posted June 27, 2014 - 09:28 PM


Ok turned it that the brand new stator was no good, I got another from rocky stator And everything works great.

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