2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 207Get this manual
Drive shaft and lower case (counter rotation model) Depth a: 4.254.75 mm (0.1670.187 in) 2Apply grease to the new oil seals, and then install them into the drive shaft housing to the specified depthCAUTION:
Add or remove shim(s), if necessary, when replacing the drive shaft housing or drive shaft3Install the drive shaft, housing, pinion, and pinion nut, and then tighten the nut to the specified torque
NOTE: Install an oil seal halfway into the drive shaft housing, then the other oil sealOil seal installer 3: YB-06195 Driver handle 4: YB-06071 Depth b: 0.250.75 mm (0.010.03 in)