I picked up a 2004 honda 250ex . It has the older dg performance Xcellerator slip on pipe,uni air filter,no air box lid everything else is stock. When I got it ..it was running poorly. I installed a Dynojet 112 main and 42 honda pilot in the carb,new plug and air filter. After resetting the fuel mixture and idle set to factory specs here is what I have now. There is a slight pop on decelleration from full throttle and i have the fuel/air set to 3.5 turns out and the idle set perfectly. It idles nice and has great acceleration on throttle. But being anal on how all my quads run I was wondering what you guys would suggest to eliminate the last little pop on decell???