Where/how to start diagnosing electrical issues

F64 wrote:

Thanks for the schematic. I couldn't find anything on my end..

Grab your meter
Meter on DC V

Ignition key ON
Kill switch set to RUN

black probe on negative battery post
red probe on positive battery post
note voltage

Going to the teal square at the top.
You have a 6 wire connector
move your red probe and backprobe (do not disconnect the connector) all of the wires and note the color and the voltage.
You may need a paper clip, nail, t-pin to be able to backprobe the wires.

Go to the ignition coils (red squares).
Backprobe each wire at the coils and note voltage

Move your red probe to the safety switch---should be at the clutch.
Back probe each black wire while  pulling in the clutch  and pressing the starter button.
note voltage

I'll have you check the pink box after I see the results of the clutch switch.

turn off bike
 

Welp, I went out there to do some work with the intention of going through this procedure. However, a few parts I had ordered a while back showed up, including one of the 3 relays on the right hand side of the bike (part #27002-1051). I swapped this out, turned the bike on, was about to go through your procedure. Then, just for giggles, I decided to see if it turned over, and to my absolute shock/delight, it did. I do still intend to go through these steps, but this was such a surprise that I decided to just call it a day on this incredibly high note.

Also, I hugely appreciate you taking the time to write these two guides out for me. You've helped me learn some solid electrical testing procedures, and without that I never would have known my fuse connection was bad, let alone how to even test for it.

Good Job!!
Have fun riding it