Re: 1971 60 hp coil retro fit
What is the issue with ignition system that you are having? I have converted to a MSD ignition on this engine in the past and it a good improvement over the OEM system. There also is an aftermarket replacement from CDI that will replace the OEM control module. But, having said all that; the primary components must be OK ie: distributer cap, rotor, wires, plugs, primary wiring and charging system MUST be in good operating condition.