If anyone out here knows.... The last three bikes I've owned (900 Ninja, ZX11, ZX12), I have removed the carbs (throttle body), unplugged the air screws and checked their settings. I have yet to find any 2 cyl. set alike, and the bikes have always responded very well to having the settings equalized.
Why isn't this done at the factory? What's the point of plugging them when they are incorrectly set?