Frozen how, have you tryed taking the spark plug out and cranking it over by grabbing and turning the fly wheel also check the oil and see how that looks, you'd be suprised at the things marvel mystery oil can do for a frozen cylinder
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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If it ran without oil and you heard a big bang ----- the engine is probably toast and will need major work.
Oil is in there for a reason.
Removing the spark plug gives you access to the cylinder and you can get penetrating oil in, but if it seized while running with no oil it will probably need to go to a good mechanic.
Good Luck !
It does not take long for an engine to heat up with no oil in it.
The big bang and turning just a little might indicate a broken cylinder or other parts broken when it seized up.
Sorry for the bad news, but most likely it is in need of major work.