Okay I have a Venture with a 032 engine this is only the second start up. I was getting it light on the skids lower the rpms when I went to get blades moving agian the blades will not move in rotation, its stuck. It will move in the other direction. The engine runs fine when this happened I shut motor down. Need help in what direction to take. Fuel I am using is 15%Nitro and 18% oil.