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ktmracer53

06 yz450f Jetting questions!!

3 posts in this topic

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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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.thumpertalk.com/forum/showthread.php?p=3710599#post3710599

http://www.thumpertalk.com/forum/showthread.php?p=3521488#post3521488 (entire thread)

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