I have a 2000 merc 40 hp 2 stroke. While idling yesterday she quit and would not start back up. I got her home and took spark plug out held it to metal and looked to see if it was sparking. I could not see a spark. I have checked all the wires and all seem to be in good shape with nothing melted. I am not much of boat guy, I can do cars but not much with boats. I just figure air fuel fire and i have no fire. I have never had a lick of problems out of this motor. starting from scratch where should i start to diagnose if this is a stator or wire or wiring box? Thanks for your comments