Is the Webra new? How many tanks have you gone through so far? The reason I ask is, Mine was doing the same thing

. I have so far ran a tank and a half through it and its getting better. Give it time, becouse they are from what I have heard, hard to break in. Start to lean it out very slowly and it will pick up, but only after you have at least a tank of fuel through it to lube it up good. My lhs told me to go through the same thing I just told you. Good luck with it. JR Venture 30, Blade CP....still learning.....LOL