I have a 1998 Johnson 70 hp that I parked a few months ago and now it won't start. It has no spark at the plugs. I know these motors are notorius for having bad power packs. How can I rule out the saftey switch and other things before purchasing the power pack. I have checked all of the coils and they ohm correctly. Is there a way to test the power pack to make sure it is bad? I have searched for a wiring diagram as well and have not been successful for finding the later model diagrams. Any help would be greatly appreciated.

