Posted: Wed Dec 17, 2008 10:59 pm
With old used electrical parts you can never be sure if the wire hanging out of it was put there by the manufacturer or Bubba! 
I would guess 10 was used because that same motor is used for both 6 and 12 volt operations.
I would guess 10 was used because that same motor is used for both 6 and 12 volt operations.