After buying a 2005 ktm 125sx that had no spark i replaced the stator and then had spark. once i finally started the bike it bogged as soon as i started it. i started it again and i slowly gave it gas to keep it from stalling and it seems like it dosent fully rev. i can start it but it will stall after about 10 seconds. Is it jetting problems or something bigger. Please help and thanks in advance.