I've got a 54 TO30. Still 6V. When I fire it up it runs like a top, and runs really well for about 15 minutes, but once its warm and I'm working it, it starts to run really rough and backfires. If I shut it off, it will not start again, or barely even turn over until it has sat for about 20 minutes. If I had to guess I would say it is the coil, but the coil does not get hot. Looking for any input before I start ordering parts, but I plan to replace the coil either way because it has a crack in it and looks like it is older than the tractor. Also, plugs have been replaced recently.
Thanks!
Thanks!