2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 257Get this manual
Power trim and tilt unit 3Install the tilt cylinder to the cylinder block 44Install pipes and 6, and then tighten them to the specified torque
Trim piston bolt: 38 Nm (3.8 kgfm, 27 ftlb)
4Install the new O-ring 3, backup ring 4, spring 5, adapter 6, and circlip to the trim piston 1
Pipe joint and 6: 15 Nm (1.5 kgfm, 11 ftlb)
5Install the new oil seal 8, circlip 9, and new O-ring into the trim cylinder end screw A6Install the trim cylinder end screw into the trim ram 2