Thanks for the explanation dmfdmf. This does indeed make sense as all the wires coming together here are black/with white stripe wires. The picture that I started this thread with is a Gen3 bike (2020).On Gen1 Wee there are little white cube connectors with black caps at various points along the harness called ground junctions that ties together all the ground wires in a harness run. It makes laying out and taping of the harness easier because the assembler doesn't have to use continuous runs of wires. It was discussed in a thread sometime ago and the advice was don't mess with them nor use them for a ground connection for aftermarket mods. Below is a picture of Gen1 cowling wiring harness with a ground junction circled in red. Note that all the wires are black/white so it is ground only.
Gen2 and later went to what looks like a crimp connection and probably serves the same purpose. A crimped connection is probably cheaper to make too. I suspect the new design may reduce electrical noise on the harness the way that stub of wires seems to be designed like an antenna to emit RF noise that could interfere with the ECU but that is pure speculation by an ME not EE.
Those wires are hydraulically smooshed together until the copper itself bonds. No glue required.Kinda like a wire nut.
Wire nuts can corrode though so.
Must be some sort of hot melt glue?
Hmmm...a heatshrink condom...interesting concept. The hot air gun to shrink sounds risky at best, but downright frightening and painful if something goes wrong. 😳 I'm thinking friction induced heat might be a better option. Just sayin!The condom is heatshrink. You put it on, then use a hot air gun to shrink. That is why the fit is so good.