2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 191Get this manual
Lower unit Special service tools 6-1 Lower unit (F50F50A) 6-7 Removing the lower unit 6-9 Water pump and propeller shaft housing (F50F50A) 6-11 Removing the water pump and propeller shaft housing assembly 6-13 Disassembling the propeller shaft housing 6-13 Disassembling the propeller shaft assembly 6-14 Checking the water pump 6-14 Checking the propeller shaft housing 6-15 Checking the propeller shaft 6-15 Assembling the propeller shaft assembly 6-16 Assembling the propeller shaft housing 6-16 Installing the propeller shaft housing 6-18 Installing the water pump 6-18 Drive shaft and lower case (F50F50A) 6-21 Removing the drive shaft 6-23 Disassembling the drive shaft assembly 6-23 Disassembling the forward gear 6-23 Disassembling the lower case 6-24 Checking the pinion and forward gear 6-25 Checking the bearings 6-25 Checking the drive shaft 6-25 Checking the shift rod and shift cam 6-25 Checking the lower case 6-25 Assembling the lower case 6-25 Assembling the forward gear 6-27 Assembling the drive shaft 6-27 Installing the drive shaft 6-28 Installing the lower unit 6-28 Shimming (F50) (for USA and Canada) 6-31 Shimming 6-32 Selecting the pinion shims 6-32 Selecting the forward gear shims 6-33 Selecting the reverse gear shims 6-34 Shimming (F50A) (for worldwide) 6-35 Shimming 6-36 Selecting the pinion shims 6-36 Selecting the forward gear shims 6-37 Selecting the reverse gear shims 6-38