I have acquired an old (circa 1990) 70 HP evinrude on a 15 ft halfcbin
Behind the dash is a wiring mess, and in amongst it is a Half sphere made of rubber, with a bakelite face on it.
It is about 20 mm in diameter, and has 6 wires coming out of it.
3 of them go to the tachometer (red, black and...
