Developed a little gas leak on a K301 carb this weekend so decided it was due for a long overdue cleaning. While I was at it had a carb off a 241 that I might as well go through for a ready spare on the shelf. Question here is the best way to bush the throttle shaft. These both had the removable linkage so hopefully no need to take the throttle plate off. Carb on the left has brass/bronze washers around the shaft so does this mean a PO had put them there? The one on the left has that recessed area where they might fit in? Is the small stepped area on the one on the right a bushing that must come out? I know Dan @Achto has recently done this on his Raider 12 resto so hopefully he'll chime in to elaborate.