Yamaha Marine Outboards Factory Service / Repair/ Workshop Manual 225G 250B L250B, Page 185Get this manual
PROPELLER SHAFT HOUSING ASSEMBLY (COUNTER ROTATION MODELS)
INSTALLING THE REAR PROPELLER SHAFT
1Install: Rear propeller shaft Tapered roller bearing Bearingoil seal attachment YB-0643090890-06656 Driver rod YB-0607190890-06606 2Install: Claw washer Ring nut Ring nut wrench YB-0604890890-06510 Ring nut 110 Nm (11 kgf, 80 ft lb)