My circumspection is holding up fine, thanks for the concern.
Kinda strange there's no mention of it in the AFM of aircraft equipped with these carbs don't you think?
Why in the hell would an AFM inform you of the principal of operation of a float carburettor? Point is, the role of the enrichment valve, or economiser as its called by some carburettor manufacturers, is covered by pilot course notes and you need a full understanding if you wish to have any hope of passing the exams. I thought from your post you were an experienced aviator, but seems from your last post you merely have an interest.
preferring to try to assist by pointing people to the little snippets of information that may benefit or direct towards further learning
Well done, and an admiral pursuit, but what exactly is your background and experience.
And take a chill pill.