If it's been sitting for a couple years like you say...good chance the fuel is not real good.

if you've cranked it for a while, that should have been plenty of time for the pump to get fuel up to the carb. look down the troat of the carb and stroke the linkage on the carb....you should see 2 good solid stream of fuel being pumped down the throats of the primaries (2 most forward barrels). That will tell you if you're getting fuel.