I'm having problem with a starter motor on a riding mower, and need to check if the motor is getting juice and not working or if something else isn't working and no juice is getting to the starter.

I've got a cheap little Onkyo 509 hooked up to a pair of Polk Monitor 50s and a powered subwoofer. After running this setup for a year and a half, my cheap little Onkyo started going into protection ...