You did'nt mention anything about a carb cleaner so...Don't forget to add a good carb cleaner to the fuel you add so it can flush the delivery system...It could simply be the carb is a little gummed up...Where's your fuel filter {in line} now ???One of those NAPA plastic filters plumbed in line{temporarily} before the pump would'nt be a bad idea until the fuel issue is solved...It'll catch any crap coming down the line and also make for a quick inspection wether or not the fuel is there...Also,you could disconnect the fuel line at the pump and blow back throught the line to see if it's clogged...