This is a new one on me no doubt caused by crap petrol. Stripped my spare set of carbs today to refurb them and on two of them the slides have seized solid. Any ideas on how best to sort. Tried spraying WD40 in them and leaving overnight nada still solid.
Aero Kroil found in the US. Can get it off ebay and nothing works better. Other suggestion of using heat also works but be gentle as zinc alloys don't like to much heat. If that don't work send em to me for a paper weight KP