Jack,
I wish the carby on the Pope was the same. Holy moly.
SAB,
I do wonder how it would fail. I would suggest either the conrod would let go, the bearings may overheat or it would simply melt the piston or rings and seize from overheating (there are limits to air cooling on essentially stationary engines) and possible lack of lubrication due to foaming.
If you're the curious type, I suggest you remove the blades from the carrier before doing anything that might be considered silly...and stand well back.
