I was riding my bike yesterday, in fairly cold weather (25 F). I did let my bike warm up, i started it, ran it on choke for 10 seconds then let it idle for at least 5 minutes in my driveway. I road some easy trails for about and hour then my bike died on me. I got a full kick on it ONCE but went to go kick it again and the kick stops about a third down the kick. I didnt force it to go down because I didnt want to damage it even more than it already is. Does anyone think that my piston has seized or what? Any ideas will help at this point. :(