RE: OS 140 RX
Mike. what was your after run procedure?
Personaly, I have always ran my engines dry until they wouldn't fire and then put in a generous amount of Marval Mystery Oil. Say 1/8oz I never measured it, and then spun it over with the starter for a couple seconds.
I found the "Set the prop at top dead center and carb open" interesting. I presume he means the piston is at TDC.
Mike R