After following Clive's advice and patching on a relay, having it work successfully on the bench...but then fail to work in the motorcycle...I needed to diagnose what could still be an issue. This video discusses what I did, my conclusions (all up front if you need it fast!) and the journey to get to those things I now understand. The next video (after this one) will be about tracing wires on the Ninja 300 itself...but in the mean time...this video is how I got there.
The previous video about the relay patch that was done:
   • Kawasaki Ninja 300 Relay box patching  

For the original autopsy of this relay box:
   • Autopsy of Kawasaki relay box.  
shared with us by @bigclivedotcom:
   / @bigclivedotcom