[speedo]

For my 71 T with a 3 pin CDI? I have a 73 tach that doesn't work, and a couple pre-69 tachs that don't work...numbers please? I am guessing that my purple black trigger wire is ok, as the car runs fine. Me thinks I have just been trying tachs that are not compatible with the electronics in the car. Seems like a lot was going on with changes in engine compartment electronics between 1969 and 1973.

Speedo