I have read about the fuel screw falling out on a lot of bikes. Even my friend who has a 2006 yz450 had his fall out. I have not poked a hole in the bottom of my 2006 wr450 to adjust it. I have done some mods like cutting the throttle stop screw, pulled the baffle out of the muffler and cut the grey wire. Should I put an adjustable fuel screw in or leave it like it is?