If memory serves right, there was a fitting coming out the side of the air cleaner that it hooked to. They might have changed out the air cleaner and put in one without the fitting. Or you might see a hole in the side of the air cleaner where that fitting is supposed to be. Or it could be there and just not hooked up. I remember doing similar, putting a screw in that hose, but couldn't begin to remember the reason why. Hope this helps.