SPS:
Have to agree that the "idle check" okay should be left on the checklist. If the first flights of the day are practising autos and a student finds himself with the engine stopping completely when splitting the needles, just makes people worried if a full EOL might have to be carried out.
I have experienced the engine stopping when doing sprag clutch check on a couple of occasions. Am I right in thinking that the new Robbo POH thing is to apply full carb heat straight away while the engine is warming up anyway. I've been doing that for a while now but heard it was to be the norm? It stops you forgeting carb heat application and ensures it's been applied for a while b4 sprag clutch check.
Remember, there are still a load of R22's out there without carb heat assist, and thats all it is, ASSIST!!!