My 1990 Johnson 40hp outboard doesn't have power trim & tilt. I left it down (in running position)over the winter as recommended in the manual. Now I can't lift it. It feels like it's locked whether the lever is in the locked or unlocked position. I pulled the bolt that adjusts the motor angle, and can get at the tilt cylinder. Everything looks ok - nothing seems kinked or leaking. Any help would be greatly appreciated, as I'm hoping to use the boat over the 4th of July. Thanks.