carburetta oil

sorry lads, i know its not a landy but would anybody know what oil you would put in an 71 mini carburetta for lubricaton.
the little handbook that comes with it just says dont use a heavy bodied lubricant.
would a bit of 3 in 1 be ok or the same stuff as for the engine. or should i be looking for a more specialised product?
cheers

always used atf fluid, my old boss was an ex blmc rally mechanic and he said it was what they used on the minis on the su carbs..

cheers mad mech, i'll pop out and see if i can lay my hands on some.
might go rallying later lol