Friend gave me a rotary hoe he found, a Troy Bilt TB146EC. When I picked it up had a chortle when seeing how small it is, first thought was whether it would be more useful in the kitchen than the garden :-)
Judging by the tynes it has hardly been used and of course needed a thorough going over, mud wasps nest in the muffler, rank fuel, air filter dripping with oil.
Surprised to find it is a 4 stroke and seems very well made.
Got it running, wow, it's a little beast !
https://www.troybilt.com/en_US/prior-year-models/tb146-ec-4-cycle-garden-cultivator/21AK146G766.html