Any thoughts on how to get a set of 2nd gen gauges to fire up without the ignition, wiring etc...?
There are 2 ground wires on the gauge cluster. Both are black with a white stripe. All the others power something. I'm not sure of the voltage ratings on every instrument on the panel, but odds are it would be 12V. What I would try to do is to use a 9 volt battery. Just hook up the black/white to the large side, and run the other wires to the small. If that doesn't provide enough juice you could always try a wall wart.Off the bike - just want to check the mileage.
R/W and O/G both go right to the fuse block. Could be R/W but I don't see how O/G is temp. Red would make sense...Ground is B/W however the power is the red wire. O/G is for the coolant temp.
Probably going to need 12V.