If you can pour gas in the carb and it runs, then it isn't getting fuel.
Could be:
*Plugged fuel filter
*Bad fuel pump
*Plugged fuel line
*Gunk in the tank (plugged outlet)
*Plugged carb
*All the above
Probably time to pull the fenders, tank, carb and do a complete fuel system flush. I recommend replacing the fuel lines, filter while your at it. You can try blowing out the lines and see if that fixes it, but usually this is just an indication that there is either crap in the fuel system, or a part failure. Better off to do the flush and head off future problems. That way, she runs when you need it.
