2010 yz450f cherry red head pipe.


2 replies to this topic
  • williec

Posted June 01, 2012 - 01:14 PM

#1

Just rebuilt my 2010 yz450f with a cylinder 468 works big bore kit. It takes a bit to start and once it starts, the head pipe gets cherry red........ wonder why and will it damage anything?

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  • VetRacer75

Posted June 01, 2012 - 06:25 PM

#2

That's normal while it is stationary to glow red hot.

  • williec

Posted June 01, 2012 - 06:49 PM

#3

OK. Thanks





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