Eric, Rich, maybe you guys can help me on a question i have hear. Just got the new Dirt Rider and was wondering about the 02 yz125 carb. 38mm bored to a 40mm on the intake side? Whats the advantage of this? Is there an advantage to that? Im sure there must be. Also, can a stock carb from a 01 yz125 be brought in and bored to a 40mm on the intake side if the differences cause a dramatic change? Thanks guys!