Hey Rob,
Yours is not a starter, (magnetic nor manual), it's just a basic switch. I can come by this weekend and help you fix it, but it may not be a bad time to upgrade to a mag switch setup, (I'd be happy to help there as well).
I may have a surplus mag starter that will work - let me check my "stash". Do you happen to know your motor HP/ amp draw? Are you wired @ 110V or 220V?