Two things.

One, you need a "running" start for your starter. Meaning start the starter a second before you you apply it to the prop. You may also need to switch the prop adaptor around on your starter to accomplish a better grip.

Second, like NJAIRSTRIKE said, you might need to prime the engine first. Again DO NOT USE THE GLOW PLUG BATTERY AT THIS TIME. Without the glow plug battery attached, open your trottle full and place your finger over the carb and carefully flick the prop until you see or feel fuel going through the carb. I find it helps to turn the prop one revo to the right to choke the engine after this is accomplished. Now place the battery back on the glow plug and crank her up. Should have no problem.