Carb interchange

Other than jetting are the carbs the same between the 04 and 09 yz450. Basically I have a 04 with a busted case but otherwise great shape. I'm building an 09 as a replacement and just want to see what parts I should hold on to

No, the carbs are not quite the same internally.  The '04 has no leak jet in the AP circuit for one.  The '09 carb is a noticeably better piece

Roger that. I'll put it in the eBay bin then. Thanx

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