Ktm 390 rectifier
My battery wasnt charging. I needed a jump... got home and took battery from bike and put on a battery tender, resting voltage was 13.3v. I bought
replacement rectifier but got the duke one without the black box connector which has an external capasitor almost the same minus that which connects to the right mount hole on the rectifier, anyway i installed and started bike and voltage was 13.5 idle and revving bike it went to 14.1 i rode bike for aortic 35 to 45 min and then shut off and let sit 2 hours and rechecked the resting voltage was 13v ... is the rectifier without the above mentioned capacitor ok and working charging peoperly... below is a pic of the 2 diff rectifiers i now have the top one when i used to have the bottom which says its compatible for rc but is listed duke...