Hi all, I just bought two 2004 GTX 4-Techs with about 65 hrs on each. They look to be in very good condition but was interested in your feedback regarding mandatory maintenance items that should be completed given the time on the machines. Also, my preliminary reading indicates that although they are closed loop cooling they should not be operated out of the water due to the exhaust cooling requirements. I have noticed many PWC owners "blowing out" the exhaust water immediately after trailering their machines and wondered if that was really necessary? Thanks, JG