Vespatude - A Vespa Blog: Wiring photo gallery

Okay, here is what I have with my wiring. I told the guys (and gals) at ScooterBBS and the Esso B's board that I would put some pictures up for them to look at. Not sure if this will be much help, but at least it might give some ideas.

This first picture is the regulator (larger image). You can see that it has five wires. The red and green wires connect to wires from the stator. The pink wire goes to the condenser. The black and the white wires connect to both wires from the stator and the harness.

Here we have the wires coming from the stator (larger image). The red and green wires connect to the red and green wire from the regulator. The blue wire connects to the yellow wire in the wiring harness. the white wire connects to the white wire in the harness as well as the black wire from the regulator. One of the smaller green wires connects to the blue wire in the harness and the other smaller green wire connects to the green wire in the harness.

Confused?

Well, here are the harness wires.

These wires form the loom (larger image). The yellow wire is for the lights. It runs to the taillight and the headlights. The blue wire is just for the brake switch. It runs to the brake switch and the rear brake light. The black wire is the ground wire. In all honesty, I'm not sure what the green and red wire are.

Finally, here is the switch. There are a bunch of wires here!

Let's see if I can remember what all of these are for (larger image). The yellow wires are for the pilot light and rear light. The blue wire is for the speedo bulb. The black wire is the ground. The white and green wires are for the horn. The red wire is for the coil. The pink is for the shut off. The grey is for the headlight.

At least that is what I think the all belong to. Again, my whole system is built on tracing back the original wiring.

I have a funny feeling that the problem rests in the regulator. The bulbs give the impression they are being overloaded when they blow. For instance, the brake light burns when the brake switch is activated regardless of whether the lights are on or not. So, I turn the lights off, activate the brake and then rev the engine. I do not have to rev far before the bulb brightens and then "puff" there goes the bulb.

Hope this might be of a help. I admit that this is where I am in over my head.