those appear to be the same canisters as the arrow carby's
on my speed triple...
in that case, remove that snapring you see inside the outlet there, then grab
the smaller diameter inner pipe with a pair of needle nose pliers and
pull like hell.....
i swear it feels like youre gonna break something or theyre welded in there,
but i dunno if its adhesive or just a tight press-fit , but theyre a bear to get moving....
but thats all thats holding them in place, just that lil' snapring you can see in your pic...
takes about 5 minutes.