I've spent about a year rehabbing a '73 R75/5 with a freebie R75/6 as a donor bike. The /6 was in better condition internally despite having been parked outside in a San Francisco backyard for a few years, so that should give you some idea of the /5's condition as it was found. Last night I finally hooked up the battery. Lo, and behold: LET THERE BE LIGHT. There are still plenty of problems, among them: Left side turn signal doesn't flash, just activates signal indicator light (as pictured) Headlight only works when dimmer switch is activated Horn doesn't work, though it does when connected directly to battery leads Ignition and light switch is touch-and-go, and won't fully engage without jiggling Beacon 1 LED tail light seems to be at full brightness all the time. Neither brake switch works Neutral indicator doesn't work, though it tests fine with the multimeter Can't get my iPhone to pair with it over Bluetooth. Tried for about an hour. WTF? Needless to say I've got a lot of work ahead of me, but it was the first sign of life I've gotten since I started working on it a year ago.