The moped is new to me and has had this problem since I have had it.
The headlight blinks dimly with the turn signals. If I unhook the headlight (remove the bulb, unhook bLue wire, or unhook Black wire) the signals stop working. If I hook bLue headlight wire to ground the signals work.
This diagram is almost exactly what the Clipper has. The headlight on the Clipper has the bLue wire but no Green wire, the other tab from headlight has a Black wire hooked to headlight ring (ground). Headlight bulb is 6v 21w
The headlight switch is messed up, so the Yellow wire from the engine is hooked to the bLue 4 way connector instead of the bLue from the headlight switch, basically making the headlight always on.
Battery is at about 5.7volts. With the moped running the voltage goes up as high as 8-9v when revving.
I thought the signals might be getting ground through the headlight instead of through the green wire to frame. There is continuity from green wire to frame, so that doesn't seem to be it.
I will be working on this tomorrow. I will test Yellow from engine to frame for voltage, Black wire (+6v) from combination switch (key) to frame for voltage, and turn signals - Orange hooked to red lead and black lead to frame and see if I get + or - voltage. And I will open up the light switch and make sure wiring is correct and that there are no shorts.
If you have any other ideas, please post them.