Yes I just purchased the boat in mention and was needing to know how do i check the jet drives oil and how often do I need to change it.Also where can I find a new impellor for it to gain more speed? The boat is a 94 sea ray sea rayder f14 jet boat with the 90hrsportjet engine in it the motor is brand new right out of the crate only have about 9hrs on it but I am a maintance freek and was needing to know more about the jet drive in it and what is involved in servicing it?Thanks geauxjoe.