Can the tilt angle of a 2001 Yamaha 150 be adjusted to go beyond the factory set limit. I look at other boats in my marina and see that their motors can tilt completely out of the water especially with Merc's and Suzuki's. It appears that those motors can tilt almost 90 degrees while the Yamaha limits their movement to about 74 degrees. I am tired of having barncles growing on that portion of the lower unit that never can be be lifted out of the water.<br />Any ideas, self fixes, etc would be appreciated.