I have an 83 kz550 m1 shaft drive. Went to go start it one day and no power to the cluster, no power when i switch the key to on. Good battery, Good fuses, Good connectors as far as I can tell after checking with a light meter. It's been rainy here. Attached video tells more.
You need make up a simple circuit tester if you dont have a multimeter and check each connection starting at the battery. I had a similar issue with a repro ignition switch. Power was ok all the way to the switch but nothing coming out when on. Took the switch out and the main power in lead had disconnected from the solder point on the back. Cheapo repro parts from China!!!!!