Dave HRABCSAK

I appreciate it! Thank you!

That's the thing. I did remove that screw while in the process of cleaning the Carburetor and I went to reinstall it and now notice that the hole is larger than the screw thread and it is not threaded. There must be something that it screwed into inside the casing of the carburetor that has dropped out of site. It really has me puzzeled? It does not run correct with the hole being open however if i plug it it seems to run fine.......?

2004 LT-Z400 carburetor Question. Can someone please tell me what this screw does? and and what it's purpose is? (picture attached) Thanks