As for the turn signal failing, you may remember that the left rear turn signal on my G5 quit working? The bulb was good but the socket did not have any continuity to ground. The reason for this is that the outside ground path of the socket is actually grounded by a wire that was shoved in between the plastic that holds the bulb socket and the plastic housing.The plastic in this area broke allowing the ground wire to dangle freely so it was no longer in contact with the socket.I fixed this (temporary) by moving the wire to a location where some plastic was still sound and the socket body would make contact with it. So far it's still working.Good luck with your problems.Jim
However if the rear lamp is flashing that suggests the handle bar switch is OK. This junction is likely in the nacelle. Check the color of the wires to the left rear and left front lamps. Then look for a junction where two wires of those exact color join into one wire which leads up to the handlebar switch. That is likely the problem area.
Singhg5As you were messing around with the left switch module perhaps you unknowingly disconnected the clutch switch?My wiring diagram indicates the starter solenoid uses that switch to ground out the energizer coil.
@Glenn & @Arizoni: Just one question - What will be a good place in nacelle where black (groud) wires of extra light can be attached securely ? I do not want to use the nuts / screws on headlight rims because everytime headlight is taken off, the ground wire will come off too. I want some place that is out of the way, where it is not easily disturbed.
Another thing - I think I had over tightened the screws of the turn signal lens - it has cracked and a small part of it is missing. I don't think CMW sells lens by itself, they will perhpas sell whole turn signal which will be expensive. Any place I can just get the lens ?Here is picture of cracked lens and for additional info the wiring of turn signal too.
And don't ground inside the nacelle. It's only connection to the main bike frame is through the bearings, don't run electricity though the bearings. Just under the tank buried in the head stock gusset is the ignition coil. You can use one of those mounting bolts as a ground. You may need to take the tank off to get to it, it's a piece of cake to do. Remove seat (not needed on the C5), disconnect low fuel and fuel pump wires, disconnect fuel line (doesn't leak), remove the two mounting bolts, cloth over the front to protect it from the nacelle, lift it off.