Hello all, Thanks for looking. I have a BS 5hp motor from 1969 on a Firestone Lawn Tractor. Needless to say it came in pieces. Anyway, I have cleaned the carb thoroughly and replaced the fuel pick up tube to the needle and jet. Replaced the needle. Replaced the diaphragm on the pump. The bowl is filling. When I pull the recoil I get a spark. But, the motor will not start. If I prime the carb by putting fuel in the throat with a turkey baster, it'll start and run for a minute. I feel that the fuel isn't getting pulled up into the needle and jet, but the tube is new and I even sealed around it with form a gasket. I am positive all the orifices are clear because I looked through them with a light. Suggestions?