Tacho/Fuel Gauge

[D-1]

I have this tacho with a fuel gauge i want to put on a FXR. Part number is 71886-01. Does anyone know the wiring for this? I dont need the fuel gauge, just the tacho wiring.

[D-1]

From the top, the terminals have a small letter L or E, then S, and the lower two i cant make out.