I have a lawn boy self propelled bagger mower with a Tecumseh engine on it. Think its 6hp but not completly sure. It will start just fine run for around 2-3 minutes then shut off with no warning...almost like its starving for fuel. It WONT restart no matter what till the engine cools down some. Usually 10 minutes or so wait time before it starts. Then it will start again and run fine for 2-3 minutes and shut down again. It does not have a fuel filter that I can see otherwise that would be my first thing I would check. Whatever is going on its apparently loosing prime of fuel. Right as it shuts off it will surge for maybe 2-3 seconds and then stall JUST like when I mower runs out of fuel. Apparently its something in the carb? I have sprayed a can or two of carb cleaner through the carb but never taken the carb off or apart. Where should I start looking?