This is a combination ignition (non-magneto) and starter switch. Bottom position is off. Middle is run. Upper momentary position is start. When released the switch will return to run position. Connect wires following the color code below:
- Brown wire: to battery power
- Yellow wire: to ignition system and other accessories that are to be on when ignition is on (there may be 2 yellow - both are the same)
- Green wire: to starter motor solenoid