Hello, I have an antique tachometer that I would love to put to good use, I rescued it from garbage essentially. It has a "Kiekhaefer Mercury" 52552-A2 written on it, and Mar 75 stamped (which makes it slightly older than me). It has three wires coming out, black seems to be ground, brown comes from the orange "52552-A2" modul, and white comes from the tach instrument. I have a Force 90 HP outboard. Would anybody be familiar with how to connect these two together, a wiring diagram or something along those lines?
Thanks, Ferenc
Thanks, Ferenc