I just got a Chrysler 35 HP outboard from the early(?) 1970's. The model is 355HG. It has electrical start but the ignition switch was missing. I've looked in the Seloc manual but am still uncertain about what switch I need. I know I need a 3 position switch with 6 terminals but I'm not sure if I need one where you push the key in to activate the choke. Can anyone help with this? Thanks.