I may be all wet, but I thought the carbs on those had a plastic low speed needle jet seat. Im pretty sure I bought one from Ed for a 20 I had to work on a while back. Seems they can get smashed or crack. I had to use a straightened fish hook to snag it out. Its a distant memory, but I remember fising that bushing and gettting the plate flat again. Might be something,
Randy
These carbs have a small plastic bearing/seal deep inside them for the low speed needle. A new one will be included in a carb kit.
