Modern Vespa

Last photos before I disassembled P for respraying

My garage


Kyiv city centre


In the forest

Drilled holes and fitted floor rails



Engine is out



Small but important thing - drain bolt with magnet


Fit release spring on throttle tube


In the workshop for welding and some straightening works.

After 4000 km clutch discs and plates on SIP Cosa 2 Sport clutch said goodbye.
I rebuild clutch with SIP CR80 kit and new brass parts too - here is little video

Changed rear shock bush for SIP one. Seems it must be better than in original size.

My precious. Bought this kit long ago but only now decide to put it in. And I was never suspect how much work it needed.
There was something wrong with cylinder or head. When I measured squish without any gaskets it was 2 mm. So I was need to sand head a lot to get 1.5mm squish with thinnest gasket.

On the half way



And clutch on it place

Is the crankshaft 57mm or 60mm stroke.

It is Mazzucchelli 57/105 crankshaft.
To compare with FMP measurements on this video my was PBT 1.3 mm and edge on the head was 0.7 mm.

Cylinder, carb and clutch cover torqued down on places. I also cleaned and greased brake cam.

Such a fine top end deserves a 60mm crank, though!

Can't argue with you. Ports on case also not matched with cylinder. But maybe later when I open cases for big rebuild.

Now engine is in good shape and all what must was changed. On the other side there is only one crankshaft which completely satisfies my desires - don't machine cases and stay with rotary intake. But price of it is really high for me.
So I will look how it goes as it is now and maybe just will matched ports.
I need good reliable touring scooter and even with DR 177 it was good enough for my purposes.

If I want to ruffian on the streets I have 50 Special with VMC GS 125cc for this.

On the few motors I built, and several I've seen hear, you need a 60mm crankshaft if you don't want to have to remove material from some where.

60mm stroke with 110 mm conrod?

But in paper manual, online shops and even avotecnica.com indicated that the stroke is 57mm. Oh those Italians!

60mm with 105 conrod is normal for small blocks.

You can run a 60mm 110 conrod if you want to, but it's typically a P200 crank, so while the main bearings work just fine, it requires longer cylinder studs, a different little end bearing, and a spacer. You can really go crazy on port timings when you do that, though. Really nice, grunty geometry, too.

I have run my super-tuned LML motor like that for close to ten years now and loved it.

Mounted temperature sensor and fitted cylinder cowling. It needed some cutting near exhaust stub.
I was need to buy new cowling because my old original one is in bad condition. Pity, as I liked how it looked.

Take it from sandblasting to my Lambretta-mate for the painting.

So pretty & clean! Both the cylinder and the frame

Diggin the vent louvers on the cowl!

Can't wait to see it painted! Louvered cowls!

Hec

Yes mate me too.
There is some disappointment for me - I could not choose the color I wanted. But now I'm still looking forward to it.

Work in progress.

Looking good!
My project is also in the paint stages. Today I picked my colors at the paint shop. It's always fun picking colors.

Good luck and keep us posted!

Hec

I didn't express myself correctly. In my situation, I don't have the option to choose a color. There is only one color in which the scooter will be painted.

Since I decided to abandon the handlebar indicators I also got another gear shift handle - without mounting for switch.


Looks so-so.



Still not good.

Cat approved - much better now.

Are those louvers welded on or pressed directly into panel?

Them welded.