2010 Cub cadet 1040 won't start. Bought new. Pulled ignition switch and checked per web instructions appears ok. New battery. When I hook up battery I get a minor spark. When I check the ground on battery to ground on engine it gives me 12 volts. I have no idea why that would happen. Researching for 2 days without anyone having something similar. Wife wants me to just buy a new mower but now it is making me nuts that I can't figure it out. I've always been a back yard mechanic. Should I pull off the regulator? I see how to test it running but not off the mower. Any suggestions would be greatly appreciated. Thanks Big T