Yamaha Outboard F15A F9.9C, FT9.9D F15 Service Manual, Page 364Get this manual
DRIVE SHAFT, FORWARD GEAR, SHIFT ROD AND OIL SEAL HOUSING (FT9.9D) E
2Install: Needle bearing Needle bearing depth a, S: 189.3189.8 mm (7.457.47 in) Driver rod 1: 90890-06602 Needle bearing attachment 2: 90890-06617 Bearing depth plate 3: 90890-06603
Install the drive shaft needle bearing with the manufacturer's marks facing up