Where is the spark plug located at on a john deere lt 150 automatic lawn mower?

On a two cylinder engine, look on the right & left sides of the engine, right behind the front wheels. A single cylinder engine, directly in front, sometimes having to easily half-open & lift off the hood of the tractor, AFTER unhooking the healight harness. Depending on the model year of any brand of tractor, it can be hard to get at plugs. Any of which, look for the black rubber boot that covers a white looking object.