Wilsons Sandbox

Hello: I just got back from a business trip and my 250 was sitting for 2 months up on a jack. Before I left I filled the tank and put seafoam in it, then turned off the petcock and drove it dry. I dont remember doing anything else to it mechanically. So today while I was trying to get it going, it would not start. I turned the petcock back on, the little fuel tank shows full, but I have no battery juice. I was kick-starting it for like an hour, in this heat it was not fun. It coughed a few time for 1/2 a sec but would not catch. I even tried to run it down a hill and jump-start it, but that didnt work either. When I tried that the rear tire locked up and slid most of the time, and coughed only a couple times. I did catch the odor of gas when it coughed though, so there must be fuel in there, right? When I was trying various ways of starting, I tried giving it some gas a few times, tried various choke positions, nothing. Anyways, after all the time, I am sore, sweaty, and tired, with nothing to show for it. I need some help. What is the deal? How do I get it back on the road? Is it the gas? Battery? Something else? For the life, and sweat, of me I can't figure it out. Let me know what you think. Thanks. Lou