I have a 2006 Yamaha 2-stroke. I was going to trim it down and wrap it up for the winter. When I pushed the button to raise it up to take off the transom saver, it was struggling to raise the motor, it was barely moving up. I used my hands to help it get up enough to get the transom saver off. When I tried to go down, it wouldn't move at first. I released and re-pushed the button a few times, then I went down like normal. Tried to come back up and it struggled again. Im assuming it works like a hydraulic cylinder on a tractor, if so, what do you fill it with? And where do you fill it?