Walk behind Craftsman 22' self propelled mower

[mikehouse]

Hi all.Here's my situation:last year I replaced the belt,pulley,blade,filter,and completely rebuilt the carb.Mower ran excellently.Just wont start on the 1st pull.Not a problem.Now since storing over the winter(no gas in Mower),and now restarting,it takes too many pulls to start up.Checked the primer bulb,still good.But when priming I hear no gas being moved.Redid the carb again just for G.P.Still takes a few pulls.Any ideas?