I have a 1985 Johnson 150 Gt with electric problems. The three cylinders on the port side is not firing. I put new power packs on last fall. Is it possible for one side of the stator not working or does it completely go bad. The engine starts great and idles great, but will not run over 2500 rpm. It acts as if the power packs are bad again. Any ideals. Does anyone have any clues for me to check out or anyone had the same problems