Starts after 4-5 seconds of crank time, sometimes less, sometimes more... used to surge but hasn't in a while.... doesn't really stall, once in a while maybe... But after shutting off, seems when hot, she does not start until we wait for a few minutes... Thinking ign module or distributer... anyone know what one to replace it with ? does it have to be merc ?? or could it be something else I can try ???