How to solve the fuel consumption problem when a screw on the throttle of EFI motorcycle moves?

Hello, according to your description, if the bolt is on this throttle, it should be able to repair our idle passage. If it is loose, when the engine is idling, it will suck a lot of air from this place, so the speed will increase and the fuel injection will increase, so it is a waste of engine oil. I hope it helps you.