Most common problem is a dirty/clogged fuel filter restricting a good flow of fuel to the engine. Otherwise, the carburetor needs adjustment. Or, if the engine is blowing black smoke before it dies, check the spark plug and the air filter, or a too rich mixture from the carburetor.
change the spark plug or check the gap on the spark plug. clean your air filter.
Either it starts and dies, or it will not crank.Either it starts and dies, or it will not crank.
Dirty carburetor.
out of gas or engine has problems; advice: consult manufacturer
It usually works the throttle. When you let go, it gets no gas and dies.
Im guessing this is a petrol lawnmower. sounds like the float is not set at the correct level in the carburetor
Could be that the fuel pump clogged... or the diaphragm for the fuel pump commonly dies out.
Bad battery, most likely.
2007 honda civic starts up then dies
Lack of fuel .
Fuel pump is gping out it may have enough fuel to start then it works like a vacuum but the pressure is not enough to keep it going. Same thing happend to my Buick Lasabre.
Depending on the lawn mowerYou are out of oil and the engine is overheatingYour oil is too dirty because you have not been changing your oilSome old dry grass or flammable material is stuck in the gears