Just curious how removing a airbox from a post 80's sled makes the sled run lean? Back in the day there were no air box's. ####, some didn't even have filters. Does the air box restric that much air that when you remove it, it allows a lot more air to enter the carb un restricted? When I looked at the airbox on my 95 zr, there is not a whole lot inside of it. Just curious.