I stored the battery on a tender over the winter. When I went to install it tonight I reversed the polarity. Don’t ask me how I did something so boneheaded, it’s too stupid and embarrassing to recount. It was getting dark so I just disconnected it and didn’t reinstall. I’ll do that tomorrow morning. Hopefully I didn’t fry something in the charging or ignition system.
I’m apparently becoming a danger to myself and others in my advancing years.