2004 ltz400 carburetor screw identification

[Dave HRABCSAK]

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

[Frank Angerano]

Well thats an oddball.  I looked up the carb and its not called out.  Sometimes there is a clip that holds in the fuel line (steel part) into the carb. It looks like a fork but i can't be sure.  Have you removed the screw to see what it possibly does or is? 

[Dave HRABCSAK]

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.......?

[Frank Angerano]

Could have been a vacuum port?  For now i would put a dab of silicone over the hole and let it sit over night to properly dry. At least you can ride.  In the meantime you can research what it passably could be for. Maybe even take a ride out to your local Suzuki dealer and ask one of the mechanics or have them bring up a more detailed blow up of the carburetor.   I will keep looking as well to see what i can find.  

[Dave HRABCSAK]

I appreciate it! Thank you!