hey guys i have a 96 cbr f3... in first gear the bike drives fine in lower rpm ...anything after that the bike boggs... if i go in third or fourth it goes nowhere...it just boggs in and out. and when i pull up to lights it tries to die unless i keep gassing it... here are the things ive checked and are ok

fuel filter and petcock are cleaned
plugs are good...took them out and cleaned them
changed the Regulator
new battery


and the bike was running fine before i changed the battery (since its wont start i think my charging system doesn't work) and the regulator from other bike.