Roto-Hoe was made by Amerind-McKissac which to the best of my knowledge is still in business.It likely has a Tecumseh H50 engine and they have a very good o/h manual available, at least for the moment, at the dealer. Tecumseh just sold their engine/power train divisions to an equity company so the future is questionable.

Badger,

I suggest you contact MacKissic directly and ask them about your machine. To start with, I think I would call their 800 number and try to talk to a real person, because emails have a way of getting dumped by spam filters and postal letters can get lost in a stack in an inbox.

I would think that the Tecumseh engine would have a model number or a serial number on it somewhere. You might be able to replace it with a Briggs & Stratton engine of the proper type and model. There are Internet sources, such as the Parts Tree, and K&T Parts House that specialize in parts for small engines. You should be able to turn up a lot more sources by using a search engine like Google.

MM