[MattC]

Make sure that fuel is getting to the carburetor. The lines can get plugged. If fuel is getting to the carb, I'd drop the bowl. There should be fuel in the bowl. If not, the inlet is clogged. Spray carb cleaner in the inlet until you see it coming out the other side. If there is fuel in the bowl then the main jet is clogged. Spray carb cleaner, compressed air, and/or fish a very small wire up the main jet to unclog it. I my experience, it doesn't take much to clog or unclog the main jet. At this point I'd put the bowl back on and see if she fires.