I have a 1953 JD 40 that is discharging the battery when the tractor sits idle for a short period of time (overnight or less). When I have the switch off and connect the battery terminals, I get a pretty good sparking, which tells me I have something pulling it down. Does anybody have any idea on where to start looking, or a general troubleshooting procedure?
Unfortunately I have classic tractor fever but do not possess the necessary skills to cure it!
Thank you for any help,