Lowr - Yamaha 250GETO Service Manual

LOWR

Lower unit (regular rotation model) .............................................................6-1
Removing the lower unit ............................................................................6-4
Removing the water pump and shift rod ...................................................6-5
Checking the water pump and shift rod.....................................................6-5
Propeller shaft housing (regular rotation model) .......................................6-6
Removing the propeller shaft housing assembly.......................................6-8
Disassembling the propeller shaft assembly .............................................6-8
Disassembling the propeller shaft housing................................................6-8
Checking the propeller shaft housing ........................................................6-9
Checking the propeller shaft......................................................................6-9
Assembling the propeller shaft assembly ..................................................6-9
Assembling the propeller shaft housing ..................................................6-10
Drive shaft and lower case (regular rotation model)................................6-12
Removing the drive shaft.........................................................................6-14
Disassembling the drive shaft housing ....................................................6-14
Disassembling the forward gear ..............................................................6-14
Disassembling the lower case .................................................................6-15
Checking the pinion and forward gear.....................................................6-15
Checking the bearing...............................................................................6-15
Checking the drive shaft ..........................................................................6-15
Checking the lower case .........................................................................6-16
Assembling the lower case......................................................................6-16
Assembling the forward gear...................................................................6-16
Assembling the drive shaft housing.........................................................6-17
Installing the drive shaft...........................................................................6-17
Installing the propeller shaft housing .......................................................6-18
Installing the water pump and shift rod ...................................................6-19
Installing the lower unit ............................................................................6-20
Shimming (regular rotation model) ............................................................6-23
Shimming .................................................................................................6-24
Selecting the pinion shim.........................................................................6-24
Selecting the forward gear shim ..............................................................6-25
Selecting the reverse gear shim ..............................................................6-26
Backlash (regular rotation model)..............................................................6-27
Measuring the forward and reverse gear backlash .................................6-27
Lower unit
6S35H11