I have a recently purchased SB Heavy 10 (1965 era) that I purchased from someone who got it from someone, etc. Its in great shape, and has apparently been restored recently. It runs really well with one exception, the motor, which appears to be new, is really running hot. All of the wires from the motor are the same color black, and everything in the switch is black. How do I begin to track down if my new motor is wired correctly? My electrical skills are almost nill. Ideas and advice is appreciated.