Make sure you replace your cheeck pads in your helmet to make more room for the permanent smile
and maybe a clean set of drawers to change into after the first time you lay it open
The secondary butterflies are actually the first set in the intake path to the cylinders and can be removed to provide more powerful low end response. the 2ndry flies don't open until mid rpm and restrict the flow of air until they open. The idea being supposedly to make the bike more rideable I think they did it to make it easier to modify when it came time to make the next model faster. they are easily removable and there is a picture how to thread that some very thoughtful, considerate and knowledgeable member of this forum posted that will show you how. good luck and congrats!
Heres the thread on takin them out
http://www.zxforums.com/forums/zx-14...ighlight=flies
