Sure....if you give the crankshaft a positive good pull with the crank handle, it will produce
a spark....it's designed that way. Same thing with the prop....give it a good hand
prop force, and it will produce a spark....It's designed that way.

However, turn either machine slowly....turn he crank shaft tooth by tooth with a prybar on the
flywheel and see what happens. I give you a clue....

....nothing will happen. It will not produce a spark.

Lean on the crank handle of the Model A, or lean against the propeller of an airplane and
see what happens....nothing will happen....sorry.

FBD.

In theory, I could catch a 200 lb catfish on 2 lb test line, huh ?

If you airplane engine won't shut off with the magneto switch....guess what ?
It's defective....get a new one. Duh.