After all issue's with wires are solved, it's time to make the connections
Starting with the neutral light
Secure the connections per function. The power goes in via the battery via a non-switched (red/white) wire, to the ignition switch, were is changes to a switched (red) wire. The red wire has a connector on both side of the wire harness, in this case I need the red wire in the headlight case.
To check if everything is connected the right way, I check with a lab power supply, adding a 6V voltage with current limitation.
Then turn the ignition switch "on" and the neutral light has to lighten up.
And it does ! This means that the whole power supply from the battery is in a healthy state, next thing are the winkers, which are also battery operated.
To keep track of the wires and keep things organized, connect one function at the time. I'll go to the next function after finishing. I often see that people start to connect all the wires, color to color, but that's a recipe for searching for gremlins afterward.
Winkers are flashing after connecting the light blue, orange and light green in the headlight case, and connecting the winker relay to the red wire in the frame.
The other side is working as well, next are the headlight. Since the SS50 feeds the light directly via the coil (AC), it's needed to connect the yellow wire to the positive of the power supply.
So, an extra 6V positive connected to the yellow wire in the frame, the light switched on, using the light switch at the handlebar.
Since the rear mudguard is still not mounted (waiting for some rubber parts in the same shipment as the front fork legs), I'm done for now.
In the meantime I'll fix the wiring of the taillight, because fantasy color wires with many "stitches" (I counted 3 per wire) are used.