1991 Johnson 150, I have verified the compression, put a new fuel system in, changed the plugs and wires, rebuilt all three carbs and i still have not fixed the problem. The engine runs great at idle speed, but when a load is put on it (per a timming light) all six plugs miss.... This problem is also intermittent, i can run in the morning 30 miles with no issues or sometimes it never runs right? The boat has twin 150's and the other engine never has a problem. <br />I am down to the coil and power pack? Any suggestions on which to fix first or if you have any other ideas? <br /><br />Thanks for any feedback <br /><br />Dean
