Hey Guys, well this holiday weekend i decied to take the carb off my 08 WR450... it wasn't as hard as i thought it was going to be. put the 24 pilot jet in. 168 main with the red needle in the stock 4th position. too cold and wet yet to ride up here in winnipeg. but the bike started right away.. and went around the block and the bike seems great... whoo hooo cheers Warts P.S thanks JD jetting. for the formula!