Mike,

Yes,the needle turns with the barrel, but the bar doesn't turn, so when the barrel turns, the needle also turns and get more or less inside bar(where the fuel comes from) to allow more or less fuel to come out for proper mixture air-fuel.
If I close the needle when the barrel is completely closed and go back 1 1/5 turns, it will be in a diferent position than I do the same when the barrel is not completely closed.
Yes, I agree that after you setup the start position, it doesn't make diference what the barrel position is, but for the 1 1/5 turns to total closed, it does. If you close the needle totaly with barrel fully closed and then open the barrel 10%, the needle will not be closed anymore, but 10% open.

I'm still wondering what the barrel position should be for the 1 1/5 reference.


Nilo