Ok gents...I don't recall seeing this in the search. For those who own pwk's and want to do a full rebuild and also like to soak your carbs.
When you buy a rebuild kit, it excludes a certain gasket. This gasket is between the jet block and body of the carb.
If you like to use brake cleaner and/or soak your carb, this gasket will swell and shrink and possibly create a permanent rich condition.
Here is the part number
Jet Block Gasket Part #1202-834-2000
Can be found at sudco and is usually on back order. Get em while they got em for 4.25 a piece.
Look like
Here where it goes
There are two tamper proof torx screws that keep the jet block secured. You will need a special torx bit to remove it. Use a little grease on the gasket to keep it adhered to the jet block during install.