hi guys please help ... forgive my spelling .. I am from Czech Republic ... I have a 2009 Buell lightning xb 12 ss long motorcycle ride year ... no problems .. I have a race emc., ... kn filter ... and original exhaust who is set carved, according to instructions from youtube ... Everything was fine one day and the bike started to shoot into the exhaust ... I tried with tps reset, change plugs, change cable for plugs, clear filter .. recharge the battery to its maximum now has 13,8 V. .. I tried to make the diagnosis and He showed me the trouble codes 13,15,21,34 ... o2 sensor I replaced it with a new but still proves problematic on the 13th .. please help in the Czech Republic is not nobody who can help me you're my only hope