1 page 176KB  from Demystification Guide #492-4509   Switch rotated to place start terminal at the top 1 page 155KB   111215 ignition switch replaced by 103991   5-terminal 3-position ignition switch for magneto ignition.  There may be a 6th terminal to ground the body of the switch. Early switches had 5 terminals and most likely the reason for the part number change. ---------------------------------------------------------------------- Tractor Switc