Yamaha 90A - Chapter 6 Lower Unit

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LOWR
CHAPTER 6
LOWER UNIT
EXPLODED DIAGRAM
(FOR 50GETO, C60ER, C60TR/60FET (OCEANIA), C75TR,
90AEHD, 90AED, C90TR/90AET) .................................................................. 6-1
EXPLODED DIAGRAM
(EXCEPT FOR 50GETO, C60ER, C60TR/60FET (OCEANIA), C75TR,
90AEHD, 90AED, C90TR/90AET) .................................................................. 6-2
PREPARATION FOR REMOVAL .................................................................... 6-3
DISASSEMBLY ............................................................................................... 6-3
INSPECTION ................................................................................................... 6-9
GEAR CASE.............................................................................................. 6-9
BEARING HOUSING ................................................................................ 6-9
CLAW-WASHER....................................................................................... 6-9
RING-NUT................................................................................................. 6-9
WATER PUMP HOUSING...................................................................... 6-10
IMPELLER ............................................................................................... 6-10
OIL-SEAL HOUSING
(Water pump housing) ......................................................................... 6-10
GEAR....................................................................................................... 6-10
BEARING ................................................................................................ 6-10
CLUTCH DOG AND COMPONENTS..................................................... 6-11
DRIVE AND PROPELLER SHAFT........................................................... 6-11
DRIVE SHAFT SLEEVE........................................................................... 6-11
PROPELLER/TRIM TAB/ANODE............................................................ 6-11
ASSEMBLY AND ADJUSTMENT ................................................................ 6-12
PROPELLER-SHAFT HOUSING............................................................. 6-12
GEAR CASE............................................................................................ 6-13
SHIM SELECTION ......................................................................................... 6-17
FOR USA AND CANADA ................................................................ 6-17
EXCEPT FOR USA AND CANADA.................................................. 6-22
MEASURING THE BACKLASH.............................................................. 6-25
WATER PUMP INSTALLATION............................................................. 6-28
INSTALLATION ............................................................................................. 6-29
LOWER UNIT LEAKAGE CHECK........................................................... 6-31