Where is the tank of fuel in a jet ski?

The fuel tank in a jet ski is typically located under the seat or the rear deck, depending on the model. Accessing the tank usually requires lifting the seat or removing a panel to reach the fuel fill cap. Most modern jet skis have a built-in tank that holds fuel necessary for operation, and the capacity can vary by model. Always refer to the owner's manual for specific information regarding your jet ski's fuel system.