Lawnmower starts but doesn't stay on.
I have a MTD 4.5 HP Briggs and Stratton push mower. I've emptied the gas tank and put fresh gas in it. I changed the oil. I replaced the spark plug and air filter with new ones. I also removed the fuel bowl and cleaned it out. The lawn mower starts but won't stay on. I did find that if I pull the string and it starts, I can keep it on by pressing the prime bulb over and over. As soon as a I stop pressing it, it stops. I guess I can have my buddy sit on top of the mower pressing the prime bulb while I attempt to mow my lawn but that would look rather silly. Help! :confused: