PLEASE HELP!!! Wont Start

my truck had been stored for about 2 years and now it will not start, it ran fine before it went into storage can someone please help. It will fire up for a second if i pour gas into the carb, but thats it.

drain and put fresh fuel in the tank if u havnt already dun that

fresh fuel is good too. but you could just have a lot of air in the fuel lines. maybe pop off the main feed line from the carb and see if it squirts fuel when you crank.