It's under the motor cover, in the engine area.
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H10C Champion
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Under the hood in the engine block
The size of the rear tires on the Cub Cadet 1641 garden tractor are 23x10.5-12. The size of the front tires are 16x6.5-8. The wheel base on this tractor is 46.5 inches.
.025 in. .655 mm
Some cub cadet don't have sparks but can crank.
The gap setting for cj6y plug is.....027 From the maker of the plugs In Japan
Model 541 45inch 2 stage.
Try drying off the spark plug and spark plug wire area with a hair dryer. The engine may be flooded now so remove the spark plug and let the spark plug and cylinder dry out also.
If you are asking about your Cub Cadet lawnmower, there may be some problem with the spark plugs. Perhaps they are defective or need to be replaced. I enclose a link to the company's how-to page, regarding how to change spark plugs. If this does not help, contact the dealer where you bought the machine.
Rust on the fly wheel and or coil.