I had a few inquiries regarding removal of the secondary throttle plates so here's what I know and don't know. I don't know all of the details so your results may vary. The secondary throttle plates are supposed to smooth out power, tame the ponies. Operation of the secondary throttle is controlled by the ECU and will set a fault if you simply disconnect the harness. To remove the plates: remove the air cleaner housing then remove the screw from each plate. The plate will now slide out of the throttle body. From my limited research some people say there's hesitation as a result of the inrush of air now available, while others have not experienced any problem. Those that did increased the fuel. My plates have been removed for the last 6k miles and the bike defiinitely has more giddy-up. How the change effects each bike is not known since there hasn't been any discussion for the 900. My setup: relocated air inlet beneath the idle adjustment; replaced paper air filter with 60ppi Unifoam; debaffled; Fi2000r.