I have a 1975 XS 650 and I saw a post on here about advance springs. There was a video showing how the the unit should snap back mine did not snap back. So I took off the springs and the weights cleaned everything then I clipped the springs put everything back together and it snaps back as it should. Before all of this I retimed my bike cleaned the carbs got it running in tip top shape. Since I clipped the springs in the ignition advance unit will I have to retime the bike or should everything be fine?