Air bypass screw passage cleaning

[Colorobo]

What is the best way to really get them cleaned out. Is there a seat in there. Pipe cleaner. I tried to find a diagram that shows where they go .  Is it just a passage into the TB. If so is the orifice the approximately the same size as the end of the screw. Rob 

[Lucky Phil]

1 hour ago, Colorobo said:

What is the best way to really get them cleaned out. Is there a seat in there. Pipe cleaner. I tried to find a diagram that shows where they go .  Is it just a passage into the TB. If so is the orifice the approximately the same size as the end of the screw. Rob 

Carb cleaner and a small dia pipe cleaner.

Ciao

[stewgnu]

You will need a teeny tiny chimney sweep.