06 yz450f Jetting questions!!


2 replies to this topic
  • ktmracer53

Posted March 01, 2011 - 08:29 PM

#1

New to the 4 strokes picked it up last week, and the bike is great but jetting is off how should my carb be set up for:

3000-4200ft
30-50 degrees
White bros carbon pro II :thumbsup:
stock motor


What should be my set up? I want easy starting but really want the backfiring:banghead: little as possible

Thanks guys.

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  • grayracer513

Posted March 02, 2011 - 07:44 AM

#2

You only hint at why you think the jetting is off, but I get the idea that it's got something to do with decel backfire. "Some" is a sign of a correctly jetted pilot circuit on a YZ450.

Nevertheless, read the following:

http://www.thumperta...599#post3710599

http://www.thumperta...488#post3521488 (entire thread)

  • ktmracer53

Posted March 03, 2011 - 05:53 PM

#3

@grayracer513

Thanks!





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