Ok i have a 70 hp evinrude with no spark, any ideas. i replaced the power pack, rectifier and i put new ngk plugs in it. i know the grounds are good because the engine cranks but im just not getting any spark. the motor quit while i was at full throdle on the river. some one told me to check the stator but i thought the stator just charged the battery, kinda like an alternator on a car. does it have anything to do with spark??