Paul here - newb - based in Lichfield UK. Great site here. Very impressed with the knowledge base

I'm recommissioning a '98 (red one - you know, the fast ones) and have a case of carb crud to clear out. It's been stood for a loooong time.
Q - what are these 2 plain diameter brass things? Do they have a function? Do the see any flow?
Really looking forward to riding the bike, once fixed.
(tried the search BTW)
Muchos thankos. Paul.