here the crap crankshaft.
[URL=http://imageshack.us/photo/my-images/220/dsc00708q.jpg/][/URL]
[URL=http://imageshack.us/photo/my-images/849/dsc00709g.jpg/][/URL]
[URL=http://imageshack.us/photo/my-images/577/dsc00713r.jpg/][/URL]

thank you javad, nice to hear from you again.

To sebastard beacause the tig welding is the best choice but at the same time you transmitt a lot of heat through the carter.
This causes distortions on the surfaces of the carters.
To avoid any of these problems I just made a little weld, also beacause the wall where I did the weld was very thin,…[Lees meer]

awesome project!
I’m following with interest your developments.
Keep up:thumb

@Edjuh
thank you a lot;)
Unfortunately this piece of work , had a short but intensive life:D

Thanks to everybody! I really appreciate.
Anyway now the pipe is abit reduced in lenght, cuz was too much.

I have to check if I have the vid of first start.

However……today I was almost going to cry, because of an unexpected accident.:'(
I’ve broke the crankshaft … even though I didn’t run it so hard.:?:boos

On the track I used to…[Lees meer]

and here something a bit faster than the Vespa Si.:lol:lol
Kreidler simply the best!!

[URL=http://imageshack.us/photo/my-images/710/kriedlerevanveen.jpg/][/URL]

here the ultimate version with the alu fuel thank and the MDM exhaust specifically made for
this engine.
[URL=http://imageshack.us/photo/my-images/101/dsc00310p.jpg/][/URL]

here a photo of the “hot rod” when I finished it:bier
[URL=http://imageshack.us/photo/my-images/824/dsc01251kn.jpg/][/URL]
[URL=http://imageshack.us/photo/my-images/828/copia20di20dsc01233.jpg/][/URL]
[URL=http://imageshack.us/photo/my-images/828/dsc01247z.jpg/][/URL]
[URL=http://imageshack.us/photo/my-images/263/dsc01242v.jpg/][/URL]

as you said is a trick:D
anyway nothing of unknown, I just sandblasted it with micro spheres of glass.

here you can see the exceptional fine surface finish with a tig weld plus a little of epoxy due to a small hole
that I’ve done during the work. Fortunately repaired.

[URL=http://imageshack.us/photo/my-images/805/dsc00756bh.jpg/][/URL]
[URL=http://imageshack.us/photo/my-images/9/dsc00757hj.jpg/][/URL]

sprocatti crank mounted on.
[URL=http://imageshack.us/photo/my-images/690/dsc00727ii.jpg/][/URL]

here the carters…[Lees meer]

pepko :
how do you know that? martino has got a terrible desease called: “vespa-addiction”
lots of people have n’t recovered of it and are doomed for live…

:lol Is it this desease transmissible?
Cuz I think I’ve been infected since lots of years ago.

Anyway, does it has something to do with ( I’ve got my moped on my mind, and my…[Lees meer]

Martino :
Indeed nice to see all the steps of improvement. For sure the vids makes me curiuos.
But why the hell i thought i’ve seen some photo’s before? Wasn’t your Si Black painted?
Or my memory is letting me down. 🙁

You’re right Martino, You didn’t make a mistake.
There are photos of my Si on ccc but there isn’t a topic such accurate…[Lees meer]

Sebastard :
Piontek, non e un nome Italiano perro,
polski forse?

bello motorino amigo,complimenti!

😀 Your italian is great man!
Anyway, yes it’s polski , I like it.

yes it’s a sort of story, I didn’t posted on ccc my works ,(I mean not a topic).. I just psted only a photo into the elaborations, even ain’t finished.
Here I’ll post the complete work with some vids.
Hope I didn’t make you sad and disappointed :con

The engine is already running 😀 (to be more precise, since a year)
I’m just showing you all the changes that I’ve done.

I’ll post some other pictures, and than some vids.:thumb

the result of this modify is a better engine response since the low revs up to the mid. renge

The engine is more reactive and achieves much quicker the max torque.8)

[URL=http://imageshack.us/photo/my-images/827/dsc00638j.jpg/][/URL]
[URL=http://imageshack.us/photo/my-images/844/dsc00637o.jpg/][/URL]

an inside view of the port modified.

[URL=http://imageshack.us/photo/my-images/703/dsc00636j.jpg/][/URL]