I used to have a 72 CB 200 or 250, whatever they were. The carbs were jammed up and they were the pressed on bowl, so you can't clean them very easily, so i took 4 to the local bike shop and wanted them to build 2 good ones out of them. They had them 3 months, got one built, working on the other one, and the bike shop burnt down. best of all, no business insurance. never saw them again, and i think my dad sold the bike.