Small Engines (Lawn Mowers, etc.): Moto-mower tiller, mail addy, person deals

Question
I recently acquired a moto-mower roto-tiller.  It has a B&S engine.  I don't know how old it is, I'm guessing 1980's??  I need a belt for it and a diagram on how the belt is installed.   
The tag says Moto Mower a division of DC Dura model 501 type 100 serial # B 20291

Any suggestions??


Answer
Hello Joe:

I have Access to the Parts for the Engine. For the Tiller you Need to send this Question to this E-Mail Addy: rototiller2@yahoo.com. This Person Deals with Antique Tillers and May be Able to Assist you. Moto tillers are Now Troy-Bilt by MTD and they have No Information on the Antique Moto Tillers. Thanks.

Good Luck

Respectfully

John