Yamaha F400A 2022 - Disassembling the Forward Gear; Disassembling the Lower Case

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Drive shaft and lower case (regular rotation model)
c. Loosen the drive shaft nut “1”, and
then remove the drive shaft nut “1” and
claw washer “2”.
2. Remove:
• Tapered roller bearing “1”
Make sure that the inner race of the ta-
pered roller bearing is placed properly on
the blocks.
Disassembling the forward gear
• Use heat-resistant gloves. Otherwise,
burns could result.
• To prevent fires, remove any flammable
substances, such as gasoline and oil,
around the working area.
• Keep good ventilation while working.
1. Remove:
• Circlip
•Dowel “1”
• Roller bearing “2”
When heating the adapter, heat the entire
installation area evenly. Otherwise, the
adapter could be damaged.
TIP:
Heat the installation area of the roller bearing
in the adapter “3” using a gas torch, and then
remove the roller bearing “2”.
Disassembling the lower case
• Use heat-resistant gloves. Otherwise,
burns could result.
• To prevent fires, remove any flammable
substances, such as gasoline and oil,
around the working area.
• Keep good ventilation while working.
1. Remove:
• Needle bearing
a. Heat the installation area of the needle
bearing in the lower case using a gas
torch.
Drive shaft holder “3”
90890-06935
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1
3
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1
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