Tilt/trim is not working on my 2002 Yamaha ox66 200 hp motor. The motor is running fine I can hear it like always but it will not trim up or down. I have tried adding fluid but it still doesnt move. There was a small leak before, I have been adding fluid every once in a while, but now when I add fluid it wont move. Motor is stuck about 1/2 way down. Any ideas on troubleshoot or fix?