Modern Vespa

1959 VBA1T, NO Battery.

Now that I have the VBA running decently, I'm moving on to the Electrical stuff. The only thing electrical working other than ignition is the headlight. Most of the other wires have been cut off or disconnected.

I got a wiring loom for my model, but I'm having trouble finding a wiring diagram that matches it. Some of the wires are different colors, and there seems to be extra ones as well. I'm attempting figure out what's what and where they all go.

Since I don't really know where to start I'll start here: Handlebar switch. Can someone tell me what each of these controls does, so msybe I can determine which wires go where?

On the off chance someone has a reliable diagram:

take off the cover and i can walk you through. lets see your harness wires at the switch too. does your bike run a pilot light or just main beam?

As far as I know everything is original except the tail light. The headlight has a main beam and a pilot. I think the speedo has a light too.

Here's a shot of the wiring for the headset.

Here's the switch with the cover off.

throw up a shot of your junction box wires and headlight too. that will help.

NINE wires!!! 8 too many for my taste!

Ok... 7 too many! Red and Black I can deal with!

red-kill
white-horn
blue/black-rear running light, comes off the tiny coil on stator
brown-headlght
green-power
yellow-power
orange-power


pink-headlight? need to see harness at headlight

Thanks. I snap a headset shot tomorrow.

Here's the junction box:

Here's two shots of the harness connection for the junction box.

are you using a Euro conversion harness? brohiem, those are not the same harness'

And

I assume some of those go to the coil?

Also I think the green wires are for the brake light. (Not sure) there are two green wires that come off the harness closer to the front end.

And a green and black at the rear end. I've got continuity on the green front to back.

the photo that shows blue/blue, green, and black at junction box is generally Euro spec. 1 power wire stator. what stator are you running? in that photo, the blue is power, green, kill, and black is ground. however you have a HT Coil.

Here's a shot of the stator.

I lied. I just remembered the wiring has been altered in some way, because a regulator has been added. Not sure if this affects anything since I'm rewriting, but thought I should mention it.

What exactly do you want to do? It appears you have a single power wire out stator. Someone has changed your original Vba stator.

My suggestion:

1) continue to use the conversion harness. I've connected these to the tear drop switch, no problem.

Or

2) correct the stator back to Vba to allow a flipping easy connection at the junction box and no dice/splice through the new, vba harness.

I just want this thing to be reliable. That's why I was hoping rewiring would do the trick.

1)I'm guessing by "conversion harness" you mean the one that's currently in the bike. right? Unfortunately, it is toast. It has wires cut short and cut out of the harness, plus some pinched bare wires in the headset, and finally, chewed-through wires that were eaten by mice living in the frame. YAY!.

2) So you're saying if I find a VBA stator, I should be able to use the new harness I have now? Damn, I just placed a big SIP order too.


Thanks

I don't know if this helps, but if you're looking to go back to original, I have some pics of the VBA stator and junction box here. By bike has a battery, but according to the wiring diagrams, there's not much difference in the harness.

i believe you have two solid options as said above.

i have loads of old VNA and VNB stators, can probably build you a correct stator if you want to go that route.

i will be back in the country next week if you want to ring me.

I guess I'm still confused. I thought finding a VBA compatible stator was the only option since my already installed wiring is so screwed up.

I may have a line on a replacement stator. I'll see how that pans out.

you can use the stator that is now in your bike now. you just need to buy a conversion harness. it is the same one that is in your bike now, just uncut. that was in the options that i gave you.

I see. I just misunderstood what you were saying.

Who sells a conversion harness? All I see is 12v conversion harnesses; or is that what we're talking about?

Scooterjerks EIK harness. that is the one you want. easy peasy.

This un? http://www.scooterworks.com/electronic-ignition-kit-harness-products-6445.php#.UfvjzG2CV8E

And it can wire up to my teardrop switch you say?

yes and yes.

Muchas Gracias!

I'll get this sorted out and then bother you again when I get a new harness. You ARE the man.

Alright Mr Gick, I've got my new conversion harness in hand. I have a rough idea where some of this goes but it's still not exactly like the one that's in there now, so I could definitely use some guidance.

Definitely not sure what's what on the switch.

Also need to know the best way to route the wires through the headset to avoid pinching or interfering with the lock or cables.

Thanks

It only almost drove me mad, after four hours of trial and error(mostly error) to run the wiring harness.

It is in there. I pray it is the correct harness.

I think I've got it right. Just not sure about connecting the headset lighting and especially the switches.

I'm assuming something is missing from my Speedometer. A light fixture perhaps?

Been there, done that, got the t shirt. And now I'm about to do it again with the smallframe. I'm going to start out this time assuming that it will take me 6 hours to run the harness, so that anything less will be a gift!

I was doing fine until my fish wire broke. Aaarrgggh! Oh we'll its in. I have a smallie harness in my near future as well. Good luck

Forgot to follow up.

Thanks to GickSpeed, I have a 100% working electrical system.

tail lights are dim, but they work.

Horn sounds a dying duck from about 2 miles away, but it "works"

Astro thanks for doing such a good job in this topic, going to be very helpful.