Here's what I THINK I have!
Battery black to black wire - continuity
Battery black to brown wire - continuity
Key on - no blinker
black to green 0
black to blue 0
black to red 0
black to brown 11.88V
Right blinker on
black to green 7.68V
Left blinker on
black to blue 7.68V
Brown to all wires are a negative reading
Blinker bulbs work when connected directly to battery so i know they work. When wired to mini chopper wiring they will not light.
Bulbs are 10W bulbs - may be the problem?
Ordered new blinker relay - possibly the problem?
So the black and brown are negatives coming from the harness and what the chinese use as a ground is showing power along with one known to not be a ground.....
Thats a good thing to know and an obvious sign of a problem...
I would remove the whole harness with keyswitch/handlebar switch and untape the harness but you can try looking towards the charging port and keyswitch areas for obvious signs of trouble......
Only other thing I can think of is asking you how the keyswitch is wired....There should be two solid orange wires or two solid yellow or pink wires on one plug and a second plug with a black with white stripe along with solid green called the flameout....
The oranges go together to transfer the juice and the black /white wire with solid green wire are the killswitch wires...black/whire is pulse power,green is ground..
One orange comes from the fuse which is between the keyswitch and the battery into the other orange wire to transfer battery power to the starter solenoid and the rectifier..
Ground[green] or pulse power from the coil [black with white stripe]should never interfere or intermingle with the two solid same color power wires at the keyswitch....
ON position on the keyswitch connects the two solid power wires...Turning the key OFF disconnects power and enacts the killswitch…..
The yellow wire coming from the rectifier box should have a terminal lug and be on one terminal of the solenoid going to the generator/starter.
The negative on the battery connects to the frame and the frame should be free of paint.....The harness grounds to a lug on the engine case which is also grounded free of paint to the frame......