Wires, What are they?

I'd like to thank every one who responded to this thread.
The guy who was helping out with the car came and hooked up the green ground wire to the relay and hooked up a wire on the coil. The car runs. I learned a lot.
Now the motor gets too hot. Maybe it's the timing. Not a serious problem. I can take care of it without too much trouble.
Thanks again all.!!!