Ok my bike died a couple days ago so ive been trouble shooting the problem. wehn i kick the bike i feel almost no resistance lke there is no compression. I also tried starting it down the hill but i got nothing. Someone said that it might be the pressure release valve is stuck or something of that nature. The bike will not get any fire what so ever. I just replaced the spark plug. Does anyone have a picture where they could show me the fuel screw location on an o4 "r" and where the release valve is if there is one. Id appreciate thanks!