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adjustable screw in bell of FCR?

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I'm waiting on new jets for my carb, and took it apart to clean. Carb is fcr41, older model with the three screws on the float bowl. I removed the bell on the air filter side using a ball end hex, and removed the two jets between the bell and the carb to clean them. One of the jets (I think it's on the left) has a spring and seems to be adjustable. Should this be turned all the way in? 1.5 turns out? I didn't check to see how many turns when I removed it becuase I assumed it was all the way in.

I ordered new jets (main, pilot and starter jet) because the bike wouldn't idle well after sitting a couple of years, and still doesn't run well after a good cleaning. The carb is an aftermarket carb on a 1996 KTM 620.

Thanks!

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It is an adjustable slow AIR jet. It works in conjunction with your pilot jet and fuel screw. Set it to 7/8thes of a turn from gently closed.

Sudco catalog as a good explanation of it and the relationship between it and the pilot jet.

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