Simonini engine

[.-{2F4OV}-.]

You’d change your standard sprockets for the malossi race sprockets (1:9). Your pressure spring also needs to be adjusted. Probably to yellow or maybe even red (strongest). I will use red.

24mm will be just fine

I don’t know what you mean with: Papers from the engine? What papers?

[barryDonateurBerichten: 3706]

You have to send a e-mail to JMPB & they deliver the calibrata for 30mm.
At the movie,I’am driving with a 21mm carburettor.

[diacBijdragerBerichten: 2184]

Papers from the engine = Cilindermap/Poortmap in Dutch.
i think that’s what he means 😉

[SpeedbusterTopic starterBerichten: 40]

until now i have the ori sprocket in but i have the yellow here
the paper i mean the ” bedienungsanleitung” introductions about the engine and the adjust

no i dont have send a mail to jmpb

yes diac that what i mean all information

[.-{2F4OV}-.]

I can’t give you the portmapping. Because the cylinder is somewhere else. Maybe in the weekend. But I’m very busy;)

But there where no papers with the engine. Only papers for the ignition.

This is a Pressurespring
and these are Race Sprockets

You have the race sprockets?

[SpeedbusterTopic starterBerichten: 40]

You have all the time you need.
ignition date are good i need all
the yellow spring i have, but not the malossi race gear.
i have a 10,5 er back piaggio vario

[SpeedbusterTopic starterBerichten: 40]

Edit:
I buy by Topham, what is your meaning about this 24mm Mikuni

http://www.mikuni-topham.de/DEUTSCHSITE/Deutsch/FRAMEDEUTSCH.html
It is a “TM 24 Flachschiebervergaser”

[.-{2F4OV}-.]

That carb will be just fine for your Simonini Engine. It’s also a D-slide so this will improve your trottle-response

[SpeedbusterTopic starterBerichten: 40]

@.-{2F4OV}-.
Thank you for your answer!

[terrydeanBijdragerBerichten: 98]

have any of you using the simonini engine and kit had problems with your clutch housing shattering?
my friend had the simonini on his si and after some time the clutch housing on the rear wheel exploded, cutting his leg. anyone else every have this problem?

[hansiebModeratorBerichten: 10922]

Variomatic clutch you mean ?

Some guys also had there back variomatic exploded, this is because of the shell which can have spores in it so it can break easily.

Injuries were bad ?

[terrydeanBijdragerBerichten: 98]

yeah, variator clutch

he got a pretty good cut on his leg, nothing serious.

he had a friend machine an aluminum band to press around the clutch and it solved the problem

[EdjuhBijdragerBerichten: 6956]

This is why simonini sells the steel clutch. Unfortunately there haven’t been steel variator clutch houses for sale until now(sprocatti sells it now, although i haven’t seen a price and the fellers haven’t returned my email either).

I feared to encounter the same problem, now that i know about your friend it’s kind of confirmed for me that it’s a serious risk.

Did he use malossi sprockets?

[terrydeanBijdragerBerichten: 98]

he does not have the malossi sprockets.
i was told by an engineering friend that a metal band or two around the clutch housing, something like a hose clamp, would keep things together. the housing will probably still crack eventually, but be less likely to explode everywhere.

[.-{2F4OV}-.]

I think the clutch explodes because there are minor cracks on the surface on microscopic scale;) It even didn’t explode with the sprocatti kit! You can see movies on the internet, where a Sprocatti Si drives with standard variomatic clutch. But if Sprocatti really is making a new clutch for variomatic it must be for some reason. Probably the standard clutch isn’t strong enough after all;)

[Gebruiker]

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