Variable venturi carburetor??

Hello friends, I have a mitsubishi lancer year 92, and I have a problem with the carburetor I need to regulate it, but I think that this type of carburetor is a bit complicated, someone will know
how

Can someone help ...?

Aid !!!
Please

You have an Ayssam Venturi carburetor that few know
in the back you have the Requeza Regulator of the idle and just below a copper screw with an aluminum plug

that

plug
hidden the high regulator
if the problem is the cox

I have a variable diffuser carolla in a Toyota Corolla Carolla that works like the Morris Cooper 1275 or by empty but the lung works horizontal. When you acceler the empty makes the lung "withdraw" and leave the air passage so that it is emulsified. I put it because the original èl carburetor was spoiled, by putting compressed air, some internal ammunition came out. Now this carburetor did not give me any problem, and consumption is around 12.5 kPL. I don't know the carburetor's mark but I will look tomorrow.