02 426 popping back


1 reply to this topic
  • 99ncxj

Posted October 17, 2008 - 02:26 PM

#1

My 02 "stock" 426 has started popping back "thru exhaust" on decell.

I don't remember it ever doing this before but now it seems to do it all the time. I know a "properly jetted race bike" will do this, but Its strange that I don't think it ever used to do it before.

any suggestions?

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  • grayracer513

Posted October 17, 2008 - 07:31 PM

#2

Same as always:

>Check for, locate, and correct any air leaks in the exhaust.

> Check for any causes of a lean idle mixture. Try backing the mixture screw out a half turn.





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