That's as it may be but if at some point before you had it or some small debris has got in they will block the small elbow. These have holes of about 1mm very easily blocked, I've cleaned out or replaced many over the years.
Could never understand why the pipes of the carb heater circuit weren't made wider?Or is it something they corrected on later/other bikes?
Changing from conventional antifreeze to new organic acid long life antifreeze can cause deposits to form and these collect in the narrow carb heater pipes.
I've got a bottle of this stuff. It's supposed to help prevent carb icing. Might be worth a try https://www.silkolene.com/motorcycle/fuel-additives/pro-fst/
My bike does suffer from carb icing, no ifs or buts about it, even after having the heater circuit cleaned
Something to point out, propeller planes suffer from carb icing too. Just something to ponder over if you ever get to fly in one