It sounds to me as if your scored and battered crankshaft extension is binding on the starter reel, Figarow. You need to take the starter off right away, without running that engine again, and do a better job of linishing the crankshaft extension. I'm guessing you will find signs of the two parts (starter reel and crankshaft extension) still seizing against each other. Perhaps your one drop of oil ended up in the wrong place, or there was simply a rough surface on the crankshaft extension.
