I think i found the problem! i took it apart and the anchors for the exhaust pipe (i believe it is) were boken on the bottem corners. Is that posibly what is making it not start? or maybe its the air intake..i dont know. im not an engine person hehe. But if i superglued it back together (considering its just plastic) do you think itll fly..atleast till i get a new engine? This is a really cheap model so its not like its going to kill me if it wrecks. In fact. the whole front nose is broke where it nose dived and the engine came out the front. (i dont know what happened...it just after takeoff, went strait up and strait down) Anyhow reply if anyone knows what im talking about..