decided to sell my stash of 500 and 550 parts as probably wont do another resto. I have 2 sets of carbs, 627b correct for cb500 four, 100 mains 40 slow jets. one set is pretty clean but will need a rebuild, and looks complete, i bought them for spares but never used them. £100 plus postage. another set not as good abit crusty inside but solid should rebuild ok but missing a couple of small bits such as one main jet spring. £60 plus post. also an odd carb 022a which i think fits 550. its a bare body at the moment and has been in the ultrasonic so pretty clean, and i think i can build a complete carb if needed, its a no 3 carb i think. £20 for that. lots of small bits of carbs including a stainless steel operating bar made by an ex member here. thanks for looking.