Can anyone tell me if they have had the problem of the engine starting, running for 20 to 30 minutes and then simply dies? I will let it sit for 10 minutes then it will start up again and do the same thing. Seems to be getting hot. Is there an over heat sensor that can go bad? Do spark plugs go bad and get too hot then stop firing? Have changed the fuel pump, fuel filter, cleaned the tank, and anything else I can think of.