I'm at the end of my limited electrical knowledge on this one. Resurrecting the bike so I don't know when it last worked. Wire harness is all stock, I cleaned it up at all connections before re-installing. I have 3 out of 4 turn signals working properly, but the left rear does not work.
Signal housing had been dinged by PO so I took it off and made sure the spring under the bulb was cleaned up and working properly, then touched the wires to the battery and the bulb lit, so the signal socket works. There is continuity from orange in headlight to junction under seat, and connection is clean and solid, with dialectric grease.
Using volt scale, with positive meter lead in socket positive, and neg lead on the neg pole of battery, and turn signal switch activated, the meter jumps when signal should be lighting, that is it reads about 8-10 volts momentarily, then back to near zero, then up near 10, so that tells me it's getting power to socket at the correct time, with each 'flash' (the working socket also has about the same reading). I also have continuity from negative side of socket to neg terminal on battery, so I think it's grounded properly. Working and non-working bulbs are identical and I switch them periodically so I know I'm working with a good one.
I'm stumped. What am I overlooking?
