Took up the Folks on Dinner invite today. While visiting, Dad asked me to look over his newer mower. A MTD Push Mower model Series 020, with a Briggs 4.5 148 cc 300 series engine. He had a mower similar to this one for 10 years. Liked it so much he bought another one. This newer one will not run. Will start then die immediately. It seems as though it is not getting any gas. Pulled the start cord and if you continue to push the primmer bulb it will continue to run then once you stop pushing the primary bulb it stops. Hated to disappoint Dad but being a grass cutter does not make you a small engine mechanic. Any Ideas of what would not be letting the engine run would be greatly appreciated.