After a couple of years not working, I have run a complete re-setup on these two including valve timing, spark plugs, governor timing, and carbs (new on SAM).
Engines by Microcosm/OKMO Models, suppliers Okmomodel.com, Enginediy and Stirlingkit.
These engines are among the hardest to mess the with governor function, of all the Chinese hit and miss engines out there.
Other news: The long-awaited desktop model 4-stroke "true diesel" engine is delayed but should arrive within the month.
Where is Matt of Steam212 channel? Who can tell me he's ok?