Can you see the gas getting in? If you pry open the choke flap, and look down the throat of the carb,as you work the throttle you will see two big squirts of gas go shooting out of the ports. And they should be BIG prolonged squirts, like a 10 beer pee. If not, the pump may be bad after sitting 30 years. In that case squirt some gas in. I do that too on lawn mowers. If there is a bit of crud clogging the jet, I pull the spark plug, squirt some gas in, replace the plug, and fire it up. Often the starting up will blow the crud out of the jet and it will run. Otherwise it needs to be removed and cleaned.
