08TRX450R keeps dying out.. Help/advice wanted

Hey guys,
I was out on my 08trx last weekend and I let it run out of fuel (stupid I know). Ever since then I couldn’t get it started. I ran my battery flat and tried to jump it with no luck.
When I got it home I took off the bottom plate in my carb and blew out the jets. As I want to start it again it kicked and idled for about 5 sec then died again. It kept doing this.
So this week I left my carb into Honda for a clean, got a new spark plug and changed all the oil hoping this would fix my problem. It didn’t. It just seems to be doing the same as it was doing before. Any ideas to what’s going on with it?
Thanks