I have a "Weed Eater" 22' lawnmower. I have changed the spark plug, added new oil and put in new gas. When I crank it, it runs for about 1 minute and then quits. Any ideas?

Is the air filter in good shape?

Does it crank right back up, but again only run for about a minute?

Sounds like a fuel filter could be the culprit, or possibly trash in the fuel tank.