So for starters id like to say i definitely don't pretend to be a mechanic.lol. But anyways, I purchased my new project

He guy that had it before me said he had it running great, messed with the carburetor and then it kept dieing on him. I filled the little reservoir about half way till the floater was parallel to the deck. And after putting the air horn piece to the carburetor back together. I went to start the engine and it slowely started turning over and i got it to run!!! for like 5 seconds.

I attached the guide rod and it with the throttle fully open the valve only opens about 1/8 an inch to let air in...Im pretty sure at full throttle it should be open fully correct? This must be an air problem Correct?(Cause when i got it started then began to let off the gas the valve was still open(cause no guide rod attached) so that would make it die right? Or is it more likely something else like spark plugs?
PLEASE HELP!!!
Thank you.
Another thing... If i continued to work with it tryin to get it to run i probably flooded it didnt I? What do i do about that? thanks