I finally bought an original EZ-Just and what a difference it made. Other brands were trouble.
The first mixture screw was bought on ebay and the pictures looked the same... wrong choice. It came in a baggy that said Cycle Pro, the threads were rough and the tip was not true, so sent it back.
Next I had a shop order me what they said was the same but cheaper... yup it was cheap alright. This one arrived with labeled HardDrive with NO protection just loose in a bag. Screwed it into my carb and it was so loose I knew it would fall out. Also the brass looks super pitted.
Finally my brother ordered me this EZ-Just, actually has instructions online and it fit perfect!
Lesson learned, I should have bought this one the first time around.