LM317T Voltage Regulator with Pass Transistor

Having blown fuses problem with my bike, also sparking when i attach the power cables. i think this regulator rectifier is the problem! but as im not an electrical engineer i cant find a way to test it. after some research i thin i found a way to test it. but would like it if someone more knowledgeable knows:)



http://www.youtube.com/watch?v=iX2NGUrFxVI&hl=en