I bought a 3020 gas that was not running well. I put a new carburator on it and it didn't help. The plugs were indicating weak ignition so I replaced everything on the ignition side. Plugs, wires, cap, rotor, coil, condensor, etc. Still wouldn't start/run well. When I was able to start it, ran very poorly. Backfiring, etc. So I finally got fed up and had the John Deere dealer come get it and work on it. They found two spark plug wires were switched around so they straightened that out and set the timing. cleaned the fuel system and got it running. Once I got it home it started but wasn't running very well. Then it came around a little and I was able to get it to run a little better and used it for a couple days. Now it's two weeks after I got it back from dealer and it won't even run. starting fluid does absolutely no good so I suspect it's an ignition problem. Any ideas? I'm wondering of there's something messed up with the distributor. It has me totally baffled.