Is that a brake on the tail of the motor?
If so, it could explain why it has no brake lever.
No, it does indeed have a brake lever you just cant see it in this ridiculous pic pulled out of my mobile phone .
And it is broke in half .
I am going back out to my shop tomorrow, and will take some decent pics, and use a fancy semi modern computation machine to post them, so they will be viewable to humans .