125cc Atv Quad

How to connect a lighthouse on dirt bike without battery.?
I currently own a 125cc dirt bike just to start implementing method. I remember the dealer to install a beacon in operation (when the engine is running) in my 85 suzuki atv quad racing. I know it is possible I just need the model of how to do this.
For future reference, always give year, make, engine size and model # when asking questions. We need all those of such information for an informed response. Some aftermarket companies offer "lighting coil" for certain bikes. A lighting coil is attached on the wheel and produce electricity in the same way that the magnet. There quads units that use a small amount of energy and amplify CDI to provide a lighthouse. Companies certainly have kits for bicycles. But each kit is model specific.
trio racing (cosenza)kl snake quad stund 125 atv