2007 YZ450 Exhaust question


3 replies to this topic
  • glenntat

Posted April 17, 2009 - 09:32 AM

#1

I just bought a used 07 YZ450f and I notice that the exhaust pipe gets cherry red when I am idling. The bike is all stock and runs great. Starts first kick. Is the cherry red exhaust a sign of something wrong with the valves or jetting? Does this happen on all 4 strokes?

  • grayracer513

Posted April 17, 2009 - 09:41 AM

#2

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  • Troutman

Posted April 17, 2009 - 04:53 PM

#3

http://www.thumperta...ad.php?t=236304


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  • nitro1max1

Posted April 17, 2009 - 07:18 PM

#4

mine does that too. I have the 07 all stock. No problem





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