I had a Sears lawn mower, with a Tecumseh 2 cycle engine. It had multiple holes in the deck for the wheel axle bolts instead of spring lock adjusters, and a slotted pulley for a starter rope.

Darn thing ran for almost twenty years, before the steel deck finally cracked so bad it wouldn't stay together. The engine still ran fine. Most of that time was in Seattle, where the grass often grows year round, and has to be cut almost weekly. Seem to recall paying $19 for it new. 

Bill