What is the item that's bring driven off the end of the starter/generator- - - - -a water pump, maybe? I don't see the distributor offhand- - - -is it hidden somewhere? Any 4 cylinder distributor with the right direction of rotation could be modified to run 2 cylinders instead of all four, by grinding a couple of cam lobes down flat to disable two coil impulses.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!