I have a 72 Johnson 100hp with the single power pack and single coil on the back of the power head. There are 5 wires going into the pin connector from the power pack. Is there any way that I can test that power pack? I do not have any spark at all on any of the four cylinders. The motor was running at 3/4 speed, then died. Restarted a couple of times and ran shortly, then died. Now, no spark at all. The power pack was replaced once several years ago when Dad had it. I kind of remember similar symptoms then. I do not want to guess and spend $300 for the pack and find that it was not the problem. Thanks.
