I am trying to get my tach working, I have a 72 merc 1400 with the thunderbolt ign. My rectifier is working but i still have no tach. The white power wire is not hooked up to the tach (done by po). So my question is can some one tell me which wires go where or if someone has this same tach can u snap a picture of how your wires are hooked up? Thanks
