Engine stopped running while cutting grass. Engine on a John Deere lawn tractor. Gas filter appear to have no gas in it. Gas tank was half full. Engine had been running for approximately 1/2 hour prior to problem.

You may have accumulated a little trash, perhaps a little water, and general gunk in the bottom of your gas tank. Either that or a bad fuel pump.

I'd get a new fuel filter, clear plastic kind, and if you have an air compressor or access to one, block the opening of the gas tank, blow compressed air into it, and see if ugly stuff comes out of your tank.

Watch out for blow back out of the tank. I use an old natural sponge like you'd wash a car with, mash it down hard agaunst the openingm and put the blow gun down into the middle. It will take a little while for the pressure to build up enough to blow the stuff out.

Make sure you have the hose down in a can or plastic jug. If the gas comes and freely and is clean, suspect the fuel pump. The filter should have plenty of gas running through it.

Sirwriter