The burner parts on my latest acquisition (Optimus 111B) is VERY carboned up (exterior). This is a first for me, all my other stoves were reasoanably clean. Anyway, is it best to start cleaning dry with a brass wire brush or use some sort of liquid (Coleman fuel? Carb cleaner? Other?)? Got my parts from Fettlebox, waiting for a friend to loan me their NRV tool. Thanks.
