Might it be that the violent stall was caused by the internals of the engine disintegrating rather than any lack of finesse by the learner?
From what you say the engine turns over on the starter but does not fire up and run as you would expect. External conditions are properly in place yet the motor fails to work - I suspect the engine has committed suicide.
But I know nothing of engines...
Clarkson...
November 2014
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