Yamaha F50F Service Manual page 143

Lower unit (FT50, FT60)............................................................................... 6-28
Removing the lower unit ..........................................................................6-31
Removing the water pump and shift rod.................................................. 6-31
Checking the water pump and shift rod ...................................................6-32
Propeller shaft housing (FT50, FT60)......................................................... 6-33
Removing the propeller shaft housing assembly..................................... 6-34
Disassembling the propeller shaft assembly ...........................................6-34
Disassembling the propeller shaft housing.............................................. 6-34
Checking the propeller shaft housing ......................................................6-35
Checking the propeller shaft.................................................................... 6-35
Assembling the propeller shaft assembly ................................................ 6-35
Assembling the propeller shaft housing...................................................6-35
Drive shaft and lower case (FT50, FT60)....................................................6-37
Removing the drive shaft.........................................................................6-39
Disassembling the drive shaft.................................................................. 6-39
Disassembling the forward gear ..............................................................6-39
Disassembling the oil seal housing ......................................................... 6-39
Disassembling the lower case .................................................................6-40
Checking the pinion and forward gear.....................................................6-40
Checking the bearings............................................................................. 6-40
Checking the drive shaft ..........................................................................6-40
Checking the lower case .........................................................................6-40
Assembling the lower case...................................................................... 6-41
Assembling the forward gear................................................................... 6-41
Assembling the drive shaft ...................................................................... 6-42
Installing the pinion.................................................................................. 6-42
Installing the propeller shaft housing .......................................................6-42
Installing the water pump and shift rod....................................................6-43
Installing the lower unit ............................................................................6-44
Shimming (FT50, FT60)................................................................................ 6-47
Shimming.................................................................................................6-48
Selecting the pinion shims....................................................................... 6-48
Selecting the forward gear shims ............................................................ 6-49
Backlash (FT50, FT60) ................................................................................. 6-50
Measuring the forward gear backlash .....................................................6-50
6C13G11
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