I just purchased a Billy Goat Brush Mower on craigslist for a great price. I was not able to start it when purchasing it due to a missing fuel line. I got it for so cheap it didn't matter if it worked or not. After tinkering around for a bit, I was able to get the engine started. Its a Honda GXV (390 i believe). The way I got the engine started was by taking off the air filter and spraying alot of starter fluid in it. The engine turned over, and would run for about three seconds, presumably just burning the starter fluid as the fuel. After taking apart the gas tank, removing the filter, ensuring that the On Off fuel switch was working, and still having no luck, I drained the oil canister right beneath the air filter (at least I think that was what it was) It was draining gas from the tank, so I know that the gas On Off switch is working. So the bottom line here is, why is the engine not staying running, and running just off of the starter fluid? What do I need to do to fix this problem? Thanks in advance PS I have not been able to check the spark plug, as I dont have a long enough wrench, could a bad spark plug cause this problem? If its not the spark plug, what is it?