Re: what did you do to your motorized bicycle today?
Ouch! Sorry to see those pics, Gorewound. I think this qualifies as a bad day for you.
But I'm also fond of saying, "These engines are so inexpensive they might as well be considered disposable". So this is where I'd just put in another engine and go on my way.
No doubt it will happen to me sooner or later, in fact.