1980 25 evinrude bottom cylinder not firing

First I have to say this is an excellent forum and this is my first time to post. I have used to the search button in the past to figure out most of my problems. I have a 1980 25hp evinrude w/electric start. It was given to me by a friend because he overheated it and scored one of the pistons. I have rebuilt the engine and I have 115 compression on top cylinder & 120 on the bottom cylinder. I have not started the engine yet because before I rebuilt it I knew there was no spark one cylinder but I figured I better start with the hard stuff first. Since the top cylinder is firing, I switched the wires going to the coils and the bottom cylinder started firing. That leads me to believe that both coils are fine.I think I have a powerpack or stator problem. But I don't want to buy any parts that do not need replaced. I have a ohm/volt meter. What test can I do to narrow my problem?

Re: 1980 25 evinrude bottom cylinder not firing

Here's some good reading. Powerpack sounds right, though.<br /><br /> web page<br /><br />Also:<br /><br /> web page

Re: 1980 25 evinrude bottom cylinder not firing

Thanks for the link rickdb1boat, I think it is the powerpack also. But, after reading it doesn't give me a test with my volt/ohm meter for a 2 cylinder engine. I'm not real electrical savie. Could someone give me an easy test for the powerpack and the stator.

Re: 1980 25 evinrude bottom cylinder not firing

^