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LOWR

Lower unit 8

Lower unit .......................................................................... 8-1

Removing the lower unit (S-transom model) ............................. 8-3

Removing the lower unit (L-transom model) ............................. 8-3

Disassembling the extension (L-transom model) ...................... 8-4

Checking the propeller .............................................................. 8-4

Checking the lower unit anode .................................................. 8-4

Water pump and shift rod ................................................. 8-5

Removing the water pump and shift rod .................................... 8-6

Checking the water pump .......................................................... 8-6

Checking the shift rod ................................................................ 8-6

Propeller shaft housing .................................................... 8-7

Removing the propeller shaft housing assembly ....................... 8-8

Disassembling the propeller shaft assembly ............................. 8-8

Disassembling the propeller shaft housing assembly ............... 8-8

Checking the propeller shaft ...................................................... 8-8

Checking the dog clutch ............................................................ 8-9

Checking the propeller shaft housing ........................................ 8-9

Checking the reverse gear ........................................................ 8-9

Assembling the propeller shaft assembly .................................. 8-9

Assembling the propeller shaft housing assembly .................... 8-9

Drive shaft and lower case ............................................. 8-10

Removing the drive shaft ......................................................... 8-11

Disassembling the lower case ................................................. 8-11

Checking the pinion ................................................................. 8-11

Checking the forward gear ...................................................... 8-11

Checking the drive shaft .......................................................... 8-12

Checking the lower case ......................................................... 8-12

Assembling the lower case ...................................................... 8-12

Installing the drive shaft ........................................................... 8-13

Installing the propeller shaft housing assembly

(S-transom model) ................................................................... 8-13

Installing the propeller shaft housing assembly

(L-transom model) ................................................................... 8-13

Installing the water pump and shift rod .................................... 8-14

Checking the lower unit for air leakage ................................... 8-15

Assembling the extension (L-transom model) ......................... 8-15

Installing the lower unit (S-transom model) ............................. 8-16

Installing the lower unit (L-transom model) ............................. 8-17

Yamaha F4B Service Manual

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