Starting with 12v running with 6v

[frederic]

any one have a diagram/schematic of system using two optima 6v batteries in a 6v system. Starting done with the two 6v batteries ( how ever they are hooked up) and running with the one 6v battery. the system I saw, for a brief time only, used original start push button and seemed to use only ONE solenoid. It looked cool but did not see how it was wired.

Fredeirc