I have a 25 HP Merch outboard and last time on lake it stalled and wouldnt start therafter? It has alot of power, not a problem. I rowed it back to campsite and checked engine out and found there was no spark and no power to coils. I disconected all kill switches, still nothing. One coil had corrossion at plug wire connection which I cleaned and checked for spark again and nothing. Removed flywheel and things looked normal there. What could it be why there is no spark to both coils. Please Help! Thank You!