My Dad had the Electric Start version back in 1972. I haven't seen one since then, and we don't have any Pictures of it, but I certainly remember what it looked like. The Connector was to make it easier to install/remove the Engine as no Wires had to be connected/disconnected under the Cowl, plus it also removed a potential sharp edge that could cut the Insulation on the wires, if it utilized a hole in the front Starboard corner of the Cowl Pan, like my Uncle's 1955 25hp Electric Start engine had