i think you need to rejet. i never took the carbs off and rejetted w/ everything on the bike, and i'm pretty clumsy w/ my fat hands. if you rejet, you'll want brent's allen head carb screws, or you can take an old screw down to ace and match them up w/ some new lock washers.
i have one of those little mini rachet setups where you can turn the driver w/ a knurled head. they work great in tight spots. i got mine at ace in one of those cheapo bins for 4 bucks. boy are they handy, no pun intended.
get a reach mirror for a buck and see if you have the caps or the d screws.
some people here must have your pipes and they could recommend jet sizes.
cat
mini ratchet set