I'm just starting apprenticing at a shop and my first real problem here is some electrical in a "1963" (As I've been told) Vespa.
The problem is that there is no voltage going to the brake lights we installed. so Firstly please look at the linked PDF.
www.scooterhelp.com/electrics/wiring/VBB2_VLA1.pdfI got it from this website, and deduced that the wiring is from the latter link
www.scooterhelp.com/electrics/60.elec.htmlwww.scooterhelp.com/electrics/pages/VBB2.150.htmlNow. Here's where my problem begins.
The tail light has voltage. And we've tested the black cable to show that current is flowing through that.
Yet what is lacking signal seems to be from the blue wire going to the brake light.
The only thing that's had the brake light work is giving it some juice directly from a battery.
(Yet, the Vespa actually doesn't have a battery)
In my opinion, the problem is that there is no blue wire getting power from the magneto to even send it to the brake light.
This is a deduction from three factors:
1 - There is only two, not three blue wires at the junction box.
2 - There is NO blue wire by the magnetos.
3 - Whoever fixed this Vespa before didn't do the greatest job. (The kill switch wasn't even wired in)
Anyways, my boss says that we won't be doing any wiring on the magneto. I'm not sure why. Can somebody tell me?
Here are some photos, and I hope you guys can give me some hints as to what's wrong.
I have clipped the brake switch contacts together with alligator clips in case the contacts weren't touching properly when the brakes were applied.
Feel free to also browse this 1962 manual, the two models are virtually the same.
www.tamlyn-serpa.com/images/Vespa_150.pdfI've also posted in another Forum to try and find answers: (More Pictures are there, I can't seem to figure out how to post all them here.)
www.motorcycleforums.net/forum/mechanics-corner/52742-vintage-vespa-missing-signal-brake-lights.html#post693204
