Re: no spark on 77 115 hp Evinrude
Com.. <br /> I'm not sure which wire is the hot one on the pack, I'd have to look at a schematic and my manual isn't here yet. The test I told you about, will check to see if the switch itself is bad, on mine the wire inside the control box came lose from the switch, but them back and it was a sparking fool. I do agree with OBJ, at least from what I've read and heard. The power pack is most likely the problem. Not to sure on how to test them just yet. Call your local mechanic and ask him, or maybe someone here could tell you how to test it. Every one I have talked to so far said to try someone that has a good one and install it on yours to see if it fixes it. Sorry I couldn't help out any more.<br />Wolf