Yamaha F100B F100C Outboards Factory Service Manual, Page 285Get this manual
Tilt cylinder and trim cylinder (F100C) Trim cylinder end screw 8: 80 Nm (8.0 kgfm, 58 ftlb)
Assembling the tilt cylinder
1Install the valve seal and the circlip into the free piston as shown2Install the free piston into the trim cylinder by installing the circlip 5
3Install the trim cylinder base 6, springs 7, and plate into the trim cylinder with the circlip 9
4Install the O-rings and pump housing assembly to the tilt cylinder by installing the bolts C, then tightening them to the specified torque5Install the reservoir cap to the specified torque