Re: Johnson HD 25 coils

[frankr]

Early HD models had "Maverick Spark Suppressors". That may be what you are looking at. If it is, there is no continuity through those. The spark current jumps the internal gap as it returns to the coil. However, I don’t think that applies to the HD-25. I would have to do some research to figure that out. Or, the mag may have been swapped from an older model. A side note, the suppressor-equipped models used a different magnet rotor also. Bottom line, check the continuity between the solder joint and the secondary winding’s ground lead. That eliminates the suppressors if they are present.

BTW, Maverick Sparks are extra stray sparks that occurred on early models. The suppressors do exactly that–suppress those stray sparks.