Jim,

What do folks think of this procedure? Can it harm the engine?


Good procedure. You cannot harm an engine by leaning it during taxi.

You might want your mechanic to adjust idle mixture. If, at idle, you
pull out the mixture slowly, you should see a 25 to 50 rpm rise in RPM
just before the engine quits - that's the correct setting. OTOH, if you
adjust it for your field altitude, you might have problems at lower
altitude fields.

--
Thomas Borchert (EDDH)