1978 Vespa Bravo variator binding. Missing parts?

In trying to start my new moped I found it impossible to pedal. I figured out that the variator is binding somehow. I compared the parts list to what I have and it appears I am missing #99, lock washer. #108, shoulder washer. #106, spacer. It is hard to tell, however -- #104 is pressed into # 105 -- is #108 pressed in before that? And the black part looks nothing like anything in the diagram -- is it supposed to be part #100? Thanks all.

IMG_4405.JPG
IMG_4404.jpg
IMG_4406.jpg

Re: 1978 Vespa Bravo variator binding. Missing parts?

Don't know if this helps...

IMG_4389.jpeg
IMG_4390.jpeg

Re: 1978 Vespa Bravo variator binding. Missing parts?

I found this diagram which looks more like mine. Does not have the #106 spacer.

Screen Shot 2019-04-11 at 1.21.25 AM.png

Re: 1978 Vespa Bravo variator binding. Missing parts?

with no belt on the bike does the engine turn freely?

Re: 1978 Vespa Bravo variator binding. Missing parts?

Dirty30 Dillon /

You definitely need the 106 spacer. Without that you can't tighten the assembly, what's more, it will allow your flywheel to pop off the taper which may be causing a bunch of your issues

Re: 1978 Vespa Bravo variator binding. Missing parts?

Yes # 106 plus the brass bushing is supposed to be there. But that's another story . Double check the the spacer, it may appear at first glance to be part of the shaft , just pull it, if it comes off you have the #106 spacer Tim. Dirty might be more informed, but I can't see any thing there that's a problem.

Re: 1978 Vespa Bravo variator binding. Missing parts?

AARON: with the belt on= bad. With the belt off = bad. With the belt AND variator off = good. The variator is binding against the frame. DIRTY: I believe that is good advice. It is strange that the second diagram (above) shows no spacer. I don't understand part #108 -- it seems that would prevent the bush (#104) from sliding into the inner pulley (#105). LES, I believe spacer #104 is pressed into the pulley, but I don't see the #106 spacer. S0.....figuring I need the spacer, any idea where to get one? Again, thanks everybody.

Re: 1978 Vespa Bravo variator binding. Missing parts?

Thanks Dirty. You're a pal. Now I can start looking into the spark......

Re: 1978 Vespa Bravo variator binding. Missing parts?

> Tim Taylor Wrote:

> -------------------------------------------------------

> Thanks Dirty. You're a pal. Now I can start looking into the

> spark......

That's the easy part. If you don't have spark, check your tail light bulb. Ignition grounds thru your brake light. If your brake light is blown or missing, (or the wire is damaged inside the rear fender, like mine was), you won't have spark.

Re: 1978 Vespa Bravo variator binding. Missing parts?

Thanks Buddy.

Re: 1978 Vespa Bravo variator binding. Missing parts?

Dirty; I started rooting around and came across this @ Treatland as well. Seems like the other (last, I hope) piece to this puzzle. May as well try to get it back to stock.

Screen Shot 2019-04-11 at 11.07.15 AM.png

Re: 1978 Vespa Bravo variator binding. Missing parts?

Yes on the lock washer! If yours was missing, it's a must, otherwise the nut will come off while riding, then...

Your variator flies off, impailing two of it's weights into your thigh, sending you careening off the road into a pond full of swans. And a goose.

Maybe that's a little dramatic, but it could happen.

Re: 1978 Vespa Bravo variator binding. Missing parts?

IMG_20190411_1249520_rewind_kindlephoto-7539166.jpg

Here's a pic of the # 106

Re: 1978 Vespa Bravo variator binding. Missing parts?

if you are missing the 106 you can just stack up a few M12 washers until the back cheek of the pulley clears the frame.

all its doing is spacing you out like 10 mm or so. washers do the trick just dandy.

Re: 1978 Vespa Bravo variator binding. Missing parts?

>

exactly, the no spark is hidden in the rear fender corroded wires that r tucked in the bead. check this first or go down the longer path.

Seth B Wrote:

> -------------------------------------------------------

> > Tim Taylor Wrote:

>

> > -------------------------------------------------------

>

> > Thanks Dirty. You're a pal. Now I can start looking into the

>

> > spark......

>

> That's the easy part. If you don't have spark, check your tail light

> bulb. Ignition grounds thru your brake light. If your brake light is

> blown or missing, (or the wire is damaged inside the rear fender, like

> mine was), you won't have spark.

« Go to Topic — end of thread

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account