My ex has a 1983 John Deere 111 riding mower. It worked fine last year,
but wouldn't start this spring. The battery has been replaced. I
checked the circuits, and found the problem to be the solenoid. But
after replacing it, the mower turned over once only, then was again
dead. I suspect something is burning out the solenoids, but that is
where I need help. What would cause that?

TIA

Mike