recently separating carb racks the large brass cap was fairly too tight for my judgement so i left it on and only slid off the shaft lever, after removing the dust cap "B," then removed the 8 stay screws, and simply spread the carbs just enough to get to the fuel "T" out, that freed the right pair of carbs from the stay, and leaving all link arms connected was able get to the fuel connector out of that, and left 2 carbs stayed connect to the stay by the throttle shaft link arm, still they can be pulled away from the stay to separate those as well.
the manual describes a total disassembly part by part that only includes the separation as if you're going to completely disassemble, it is not required nor advised IF the brass caps (usually the outsides,) are pretty tight or slightly cocked (from cross-threaded) assembly by the PO.
the reason to not attempt it, is if you don't have spare parts, if it's tight, and you try to break it loose, here's what can happen, if corrosion has built up inside from the 2 dissimilar metals aluminum and brass or if it's been lock tite'd from PO then taking it off can wipe the tiny threads off enough that makes it almost impossible to reassemble or at best there'll be a couple thread left to hold the cap on.
i decided to follow the instructions with a spare carb rack to get operational and of course that's what happened, even care of lubrication and easing it out back and forth. so much more complicated than leaving it all together.
(on account the running carb/bowl joints are bowed too much to get a seal." So the fix i'm trying to crimp the cap some with a flaring tool, like a resizing die the wing nutted style. it's not working so well. i don't want to have buy some form a thread kit to fix it. at last resort i'll put some copper thin shielding as a fill in or aluminum foil. what the cap screws onto is compressed slightly as well, making the spring inside too tight to move freely, but that looks to be a train wreck by trying to expand that delicate thing without cracking it. could of left this short and said just don't take them apart, but if you're like me and forever an apprentice with not much good luck, then you wouldn't understand why not. they are super delicate. and still i cannot figure out how to take those weird spring things off of the ball joints, and i don't want to know. and certainly do not attempt to remove the pin holding the throttle shaft through the stay plate. (luckily i wouldn't try.)