Tor,

You might be able to get away with doing that on an engine like a Zenoah that feeds directly into an intake port. You will damage the reeds on that MVVS 45 if you try that method. Heed what the manufacturer tells you!

Most engines can be shut down by closing the throttle completely. Remove the idle adjustment screw and set the idle with servo end points then use your throttle trim or the "Throttle Cut" feature on your radio (if so equipped) and shut it down like you would a glow engine. I don't see the value of loading the engine up with unburned gasoline for storage, even if it does have some oil in it.

Bob