have you tried to get her to go to gpl this phenomenon is petrol or with lpg?
it is located near the butterfly aspirazinone
try to strangle a little tube of the suction, usually should raise the minimum, if you raise it then, and secure the starter motor step-by-step jammed or perfectly calibrated,
The motor step-by-step pu? to make the minimum irregular, but absolutely does not affect the performance. So the problem is, I would hunt elsewhere...