While attempting to adjust idle I noticed that my Weber carb is spurting a little fuel when I throttle up. It doesn't do this at idle though. I'll attach a photo to illustrate the area. The small "leaf" on this assembly draws in and produces the dribble when I goose the throttle. I've got two Opel GT manuals but of course neither has Weber info. What is this part? What is it's function? Why is it leaking?
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