2001-2014 Honda BF/BFP8D, BF/BFP9.9D Outboards Shop Manual, Page 339Get this manual
BF80-BF9.90 6) Remove the piston rod and free piston from the cylinder7) Remove the O-ring from the piston rod and discard itReplace the O-ring with new one during reassembly 8) Remove the backup ring and O-ring from the free piston and discard them Replace the backup ring and O-ring as set during reassemblyO-RINGS CYLINDER
FREE PISTON BACKUP RING
I Do not reuseI
9) Remove the dust seal and O-ring from the outer tube and discard them Replace the O-ring and dust seal with new one during reassembly