This is sort of an add on lesson learned to Hondaman's tutorial about the EMGO harness for K3 to K7. I am doing a K3 harness install and ran into a problem. After all was hooked up with the "extra wires" taken care of I had no power to the SMSU black wire in the red connector, none at the rear stop switch and the start solenoid would not work. I was doing this with the engine out so I grounded the neutral switch wire to simulate the engine in neutral. Long story short, I essentially installed the harness twice looking for a mistake. When I got down to wire checking with my test light I was wiggling things around and found intermittent power at the black wire at the SMSU. I thought my new harness had a break inside, not good. It turned out it was the brass end in the connector. I managed to tighten it up and the problem went away. I hope it does not come back, if it does I may have to some how replace or rebuild the red connector.