Re: 85 hp Force
The pressure in the tilt trim cylinders is preventing you from lifting the motor. You can disconnect the hydraulic lines on the valve body or on the cylinders themselves, whichever is more convenient to relieve the pressure so you can lift the motor. You can take a piece of 2 X 4 and wedge in to the pivot point to keep the lower unit up, or take a short step ladder or a sturdy chair and position under the upper portion of the lower unit to keep it up. You get the general idea. When you lift up the motor with the lines disconnected, fluid may squirt out and can be messy.
Be careful when re-installing the flare nuts that hold the hydraulic lines in place. They're easy to get cross threaded. If you damage the threads by cross threading, then they'll leak.