05 15,000 miles, pc3 full Akro exhaust, not extremely abused bike. Started with a small miss/ studder at a stop light. Had got gas 15 miles earlier, thought it may be bad gas. Put new tank of fresh fuel, and it seemed worse. about half mile of riding it was missing and stuttering. Replaced plugs. Originals were little dark but not fowled. Rode with new plugs, miss seemed gone but under full throttle even in first and second there isn't much power. Will accelerate but not fast. Still thinking fuel issue I pulled pump, checked screen and it was clean. Softly blew out pump filter. Pressure is 44psi at prime and holds at 41psi. 44psi while running. When I pulled plugs I checked stick coils when I replaced plugs and both values were in spec.. Could it be a stick coil or throttle body. Anyone have this problem ? It starts good, idle seems ok but a little rough at part throttle (in shop not on road), revs quickly (again in shop not on the road).