I don't have spark on my 71 CB500K. It will turn over with the electric start, but no spark. There is continuity through both points, but no power to the coils. I tested this by turning my key on, putting the kill switch to the on position and checked the female connector for the black and white striped wire. Since my test light didn't turn on, I am thinking that I don't have power going to the coils. The bike has a new wiring harness, a new battery, and new coils. Where should I exert my next efforts to determine why I'm not getting power to the coils? I know that after I (hopefully) figure out how to get power to the coils, I need to test to make sure I am getting power through the coils, but first things first. If I'm not getting power TO the coils, the coils aren't (yet) the problem of no spark. Thanks for any advice and counsel on this.