Hey thanks for the wiring diagram.
I wonder if there's some miscommunication going on here. The area in red on the diagram with frame grounds (1-5) appears to be the leads that are bolted to the frame, just below the top frame rail in SilverJoes picture, which I think is what most of us picture as a typical ground wire(s). At least I do, won't speak for anybody else.
What I was curious about ( and I will speak for others
) were the leads in the same picture by his thumb.
I sent a quick message to a friend who works on these and he confirmed they are indeed diagnostic leads. I tell you, I really need to get my manual lol. Certainly these leads include ground wires (just going off color codes that i could see on my own bike and cross referencing to the wiring diagram)
Ordering manual this weekend.......