When I was trying to break in my firestorm 10T, I primed the engine fine, but getting the engine to actually start is my problem. The glow igniter and glow plug works, the I discharged the fuel out of the engine many times, to be sure, but nothing happens. The pull start tugs feels like it's locking up a lot, and difficult to pull. Is the pull start to blame? Help me with my probelm please.