Yamaha Outboards 3P Service Manual, Page 59Get this manual
_ 5) Place the forward-gear on to the bearing
6) Invert the gear-case and place the pinion shim and pinion; then insert the drive-shaft and install the circlip
7) Referring to the illustration, assemble the propeller shaftInsert the shift spring into the open end of the propeller shaftBy pushing the spring, install the clutch dog, and put the shift plunger in