Re: 1970 johnson 60 hp, no neutral
Check the voltage on the two wires (Green and Blue), on the port side of the motor. Located on the lower side near the back. They control the shift solenoids. No voltage to either is Forward, Voltage to the green (12V) is Neutral and voltage to both green and blue should be reverse.
If not, hunt down Joe Reeves to help you. He is the pro for these models.
Jonny5