for a 1960's Johnson 20hp, was there a particular colour for the original
coils? In mine I saw a dark blue one, and a light green one. The light
green had today's kind of wire insulation on it, while the dark blue one
seemed to have the older type of insulation - almost looks like a fabric or
whatever (you know what I mean - the older stuff)..

The replacement coil I put in was a newer light green although not
identical to the older light green.
I suspect that the dark blue was well worn as she seems to run good now that
I replaced it along with the points and condenser.

Anyone had this experience here?