I just got my new Volcano S30 (my first R/C vehicle). The pull start is very difficult to pull. I managed to get it started yesterday to burn my first tank of gas for break in. It was very difficult to pull the starter rope. Occationally it was easy, but mostly very stubern. Tryed to restart to run second tank thru, but not can't pull the rope at all. I tried taking out the glow plug and pulling it, still stuck. Any suggestions? Thanks