Take one of the old screws to a hardware store, and get stainless allen heads to replace them. That's what comes in all the jet kits.
If you've blasted cleaner into the the jets in the bowl, and cleaner is coming out the other end of the passages(in the throat), then button it up and put it back together.
Last thing before hooking the fuel supply line to the carb
, test the pump on the bike this time. When you turn the key to "On" without starting the bike, the pump should build pressure, which means it will be pumping fuel....so be ready to catch it. If its not pumping fuel, but the pump is clicking, then do what Kai suggested, and run a piece of fuel line from the petcock at the tank, to the carb inlet, and let gravity do its thing. If it runs then, you'll know the pump is bad.