I can only confirm what is being said here. Currently it is about the Webers in my wife's Alfa. D3Sshooter makes such clear and very comprehensible videos that I wanted to disassemble the carburetors myself now in the spring. Without his videos I would not have dared to do it. Here is video no. 2 a „disassembling and cleaning“ a Weber DCOE.
https://youtu.be/c-YJdzhgrkwEverything is absolutely worth watching, whether you're tinkering yourself or just want to watch and learn. Very excitingly done and he is a very likeable guy.