My No.2 slide descends quicker than the other 3 which are all pretty consistent. The only thing I can think of is the diaphragm has a pinhole, but holding it up to the light I see nothing. My next trick will be to swap springs, but I don't think there can be anything else that would do this besides the diaphragm or spring? The slide action is silky smooth on all 4 carbs, just No.2 is way quicker to drop down.
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