Hi guys. I agree with Kampala, but the more critical thing , for me, is that the pedal is rough, not progressive.
So when I release the pedal , the next press will produce a click, even if made with attention.
I tried to lubricate everything in the linkage, even with different springs, but nothing changed.
Probably this little problem comes from an high number of jonts and from short and disadvantageous levers in some point of the linkage and on the Venturi air intake.