I am looking for Bill!!! How does a jet pump work? Where does the water come from to cool the engine? When the boat is on land with the water hooked up, there is water coming from behind the flywheel where the drive shaft comes up behind the motor. Is the jet pump leaking there or what? With the boat on land it is filling up with water. Where is the water coming from and how do I fix it? I have a 97 GTX Seadoo. When we put it in the water it has great acceleration and runs great, but there is water coming from behind the flywheel where the drive shaft meets the back side of the motor. What do I need to do about this problem?