The Ottawa Buzzmaster could be purchased with a 6HP, 7HP or 8HP Wisconsin AEH or AEHS engine.

They were produced from the late 1930's to 1951 when the company closed.
 
These are scans of MY Buzzmaster manual..



The Buzzmaster could be had with a post-hole digger, the tree feller (shown), a vertical saw blade for cutting up wood and a sickle mower.



This Buzzmaster with the table saw attachment belongs to Chris Sansbury from KY. His Dad bought it new in 1946-47.





This is My 1947 Ottawa Buzzmaster

It's missing the blade guard. If you have a spare one (yeah right), let me know.

It has a Wisconsin AEHS
Wisc. Serial # 919495

Ottawa Serial # H1059

It takes a Champion D16 spark plug
.030 Gap

Uses a 105B or 105C belt to run the blade

4.00 X 12 tires