Hey! I would like some help with my scooter, it has been sitting for a few years, now we want to use it so we started to repair it. The engine works perfectly, but I have a bit of a problem with the electrics. The battery is dead, but the headlight and taillight works when the engine is on, however, I don't know if it needs a working battery for the indicators, horn, and brake light to work. Thanks in advance for the help.