I'm not sure what you mean by jets :) For example the sizes of air correction ( 9 ) jets shown at the first picture from the top are:

-220/F58/107;
-135/F56/115;
-70.

But if you need to know the main jets sizes ( 8 ) which are deep inside the carb than I'd rather not to mess with all that ...

It looks awfully like a Weber 32DRT or similar (the aftermarket replacement for the Solex 28-34 Z10 CISAC).

As it turned out it's some kind of Weber carburettor, Solex had to be replaced by that one long time ago.
I've taken the carburettor symbol from owner's manual so ... sorry my fault :oops ...

I'm afraid in Z10 there's no mixture screw in that place. I was looking carefully for that little bastard but i couldn't find it. Indeed the idle jet seems to be the lower one showed on my first picture (is it the same?). What jtbo's showed on his first picture is idle speed adjustment screw and it ...

Hi guys!
Yestererday i failed exhaust emission MOT test, the result of CO level was 5.43%. I was told that this could be cased by wrong adjustement of carburettor. Could anyone step-by step explain to me what the shown screws are for and haw can I properly adjust it?
It's very urgent case becouse ...