Is stock jetting the same for every state?

I am wondering if every wr shipped comes with the same jetting. Anyone know? Is it different depending on the destination for the bikes? I am wondering because I never changed the jetting in my 00 yz 426, and it was fine from 4000 to 11000 feet of elevation. thanks

Chris :)


All units are jetted for sea level. Our units here in Utah are too rich. They need to be leaned out.............db

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