I have a 1972Cb350 twin that has been chopped and dropped. Some of the electric has been replaced like the regulator and rectifier in place for new parts. My problem is that the bike looses power after the first mile or so. After about 20 min of riding I need to bring it back home because there is little to no power. I have spark and fuel. Carbs are clean, floats are set. I really think that it is an electrical issue, but I am not sure where to start to look for the issue. It was suggested that I replace the points for an electronic ignition, and that I should replace the coil. Instead of just throwing money at it I would really like some insigt ito what I could do before I start buying new parts to just replace everyting, which is what many ppl are telling me I should just do.