Not sure if this is the correct sub-forum, feel free to move the thread. Anyway, I have a Yamaha DT 175 1992. The bike when I got it, did not have a working battery, the 6V battery was reading less than 1V. It was a 6N6-3B-1. So I was thinking, of dropping the voltage on a 12V battery I have to 6V for the bike. First of all would this be possible and how would I go about doing it. e.g. voltage regulator, resistor, DC/DC converter, etc. The battery is only used to power lights, horn, etc. The bike can run with no battery and use lights, horn, etc. But the horn sounds terrible and the lights dim in and out depending on RPM.