Thanks for reporting back, Paul - it makes this thread useful to others, in the archives. Diaphragm carburetors are a bit weird and fiddly until you get used to them, and even then, it is really irritating if the metering lever spring decides to leap across the room suddenly, and hide. I'm certainly no expert - I often have to go through the rebuild process twice before I'm happy with the way the engine runs - but I'd say you were lucky to get such a good outcome on the first try. Reading and believing the manual is the key to success, though.
I'll close this thread.
