I know I'll probably get flamed for this, but for some reason I can't resist this morning.
I know that the term "motor" is commonly used to refer to an internal combustion "engine", but the two should not be interchangeable terms.
Even NASCAR refers to "engines" as "motors" :frown:.
An "engine" is internal combustion or piston and a "motor" is electric driven.
NOW - if your engine will not turn over, have you tried turning it by hand with either pull cord or by physically moving the flywheel ?
If nothing will turn - you could try taking out the spark plug and putting a good penetrating oil in the cylinder and let it sit for a day or two. The penetrating oil may free up the cylinder.
We like to follow these things - so if you do get it turning over - let us know.
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