Does anyone know how much power the little $60 50cc two strokes from ebay and amazon have? My uncle gave me a little, I guess you could call it a pocket bike (it would fit in my pocket) with one of these engines on it. I was thinking o putting it on a bicycle, until I realized that it had t8f chain. Now I'm thinking of sticking it on my schwinn electric scooter. I would just like to know about how much power I can expect from it. It does have a big bore (44mm rather than 40mm) kit which brings it to 54cc, and it has a pz13 slide carburetor. I haven't gotten it running yet (the carb needs a clean and it needs a new top end ($26 with a coil and plug). Also, what fuel oil mix should I run in this engine? Most of the Info I've found says 44:1, but I'm thinking something closer to 40.