hi mejia it will be either the regulator /rectifier or the generator that is not working you need to get it checked by a garage to find which one it is or replace the regulator /rectifier first and see if that sorts it out if not then replace the generator.but before you do either of these check the wires from the generator and the wires going into the reg/rec as they often corrode and turn to a green powder ,ok adam
adam bike doctor, April 2006