hey i just picked up a non running 440 standup. i was told it had a bad starter so i fixed that and i am getting it to roll over. so i put new plugs and new gas in it and she didnt fire. i checked the spark and has spark. i put some fuel in the carb and it will fire up and run until it burns all the fuel out of the carb. all the gas lines are connected correctly.. for some reason it is not getting fuel to the carb.. is there any common problems these have?? any help would be great.