I have already searched the forums but I just wanted to be sure. I just got this boat/motor and dont know anything about it or have any book on the engine. The tilt trim motor runs both up and down but the pump or something does not work. I was going to add the hydraulic fluid to it to see if that helps but I am not sure what kind. I bought aw-46 from O'Reilly but that is all they had besides tractor fluid. The serial # on my motor is 6515366. It is a 90 hp engine. That is about all I know about it. Thanks for your help in advance. <br />Daniel