Re: Polarity and starter

[ZinkZ10C@aol.com]

A starter motor is a series wound motor,  it will spin the same direction 
regardless of polarity.

Series wound motors are used on many DC electric cars, to them to reverse 
rotation the field _or_ the armature polarity is reversed.  These motors have 4 
terminals to accomplish this.

Make sure you have a solid ground from the battery to the starter.  If the 
battery is grounded to the frame or the body, a cable of similar size must run 
to the engine.

Harold