Havr you been able to run the engine at all with the new carb? If not, the needle valve is probably stuck, refusing to let the float bowl fill with gas. Take some sort of squeeze-bulb device like a turkey baster, etc., and fill the float bowl through the vent tube, which is usually just above the choke plate. That should let the engine run for half a minute or so on the fuel in the float bowl, even if none is coming into the carb from the fuel line. Goose the throttle a couple of times to see if the incoming fuel pressure will unstick the needle valve. If not, you'll have to pull the top off the carb and find the source of the blockage. At idle, a good fuel pump should supply at least a pint of fuel in 30 seconds, if it's being collected in a catch bottle of some sort. Stay away from electric pumps. Unless they have some type of safety circuit such as an oil pressure switch wired in series, they can really flood an engine in a hurry.
Jerry
