If you were browsing through pictures of bikes similar to that model, one you may have stumbled upon is the YSR50, originally produced back in 1986. If you saw a picture of the YSR50 by itself ...

The motorcycle frame is from a Yamaha YSR-50. Smaller than a standard street bike and larger than a pocket bike it comes with a 50cc engine and is street legal. The gas turbine is being ...