Motorcycle Repair: carburetor, yamaha yfz450, jet sizes

Question
I have a 2005 yamaha yfz450 atv, I put a big bore kit in it, and made it a 478, can you tell me what size jetting to put in it?

Answer
Hi Ray,

I'll do the math and get the corrected jetting in the ballpark if you can provide your riding environment elevation, average temperature, and current jet sizes.

Usually, additional fine tuning is required to dial the air-fuel mixtures in.

Respectfully,
Mark Shively