I am sorry you are having a problem with the tractor. If the starter is getting warm when you turn the key, it is getting some voltage. I recommend removing the spark plug first. Then turn the key to see if the engine will turn. If the engine will not turn, try to turn the engine by turning the screen on the top of the engine. If you cannot turn the screen, the problem is either the starter gear is jammed in the flywheel or the engine is seized.
If the engine will turn over with the spark plug out, the problem is either a weak battery or the valves in the engine need to be adjusted. Please reply below with the tractor model number if you need instructions on how to adjust the valves.
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