What is the water pressure coming out of a jet ski and or how many GPM does the engine move?

The water pressure produced by a jet ski can vary depending on the model and engine specifications, but it typically ranges from 40 to 60 psi. In terms of water flow, most jet ski engines can move between 90 to 150 gallons per minute (GPM) when in operation. This high flow rate is essential for propulsion and maneuverability in the water.