Did you get your carbs reset for the popping??? If not do what most suggest, go out 3.5 turns on the air screws, dont know if you have removed the snorkel, but do so! You dont necessiarly have to rejet with BUB pipes, after all you are talking about main jet. Remember-you are attempting to setup your bike like your riding style which isnt WOT, many overjet on the main quite often, it is a waste of fuel. All carb circuits overlap and unless you ride at 3/4 throttle you can setup your bike to perfrom well for now. If you decide to rejet, do not mess with the pilot 42 is fine (actually it is a 45 now - newer sized) so you dont need to mess with it. You can go up to a 130 main a bike will run very nicely.
