2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 174Get this manual
Power trim and tilt unit
Removing the power trim and tilt unit
1Fully tilt the outboard motor up, and then support it with the tilt stop lever 1
4Remove the circlips 6, then the lower mounting shaft 75Remove the circlip 8, then the upper mounting shaft 9NOTE: Hold the power trim and tilt unit with one hand, and pull the upper mount shaft out at downward angle with the other6Remove the power trim and tilt unit 0
S6D83150
S60C7745