lean

I have an 02 Warrior with a Zoom Zoom carb. I just got a new PowerBomb header and put it on. Didn't touch my carb at all. The bike was running a little rich to begin with, but now it's popping and making all sorts of banging noises. I have no idea what the problem is, I think it's to lean.. But...

I just put a UNI pod filter on my Warrior and so I bought a bigger main jet. I bought a 152.5. Keep in mind that my quad has an FMF pipe on it and I also dumped my air box. I would think this jet would be too rich if anything, but when I tested my Warrior, it seems to be too lean. When it revs...