Disassembling The Front Wheel; Assembling The Front Wheel - Yamaha YZ450FX 2019 Owner's Service Manual

EAM30019

DISASSEMBLING THE FRONT WHEEL

1. Remove:
• Oil seal
• Bearing
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a. Clean the outside of the front wheel hub.
b. Remove the oil seals "1" with a flat-head
screwdriver.
TIP
To prevent damaging the wheel, place a rag "2"
between the screwdriver and the wheel surface.
1
c. Remove the bearings with a bearing puller.
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EAM30020

ASSEMBLING THE FRONT WHEEL

1. Install:
• Bearing (left side) "1"
• Spacer "2"
• Bearing (right side) "3"
• Oil seal "4"
New
TIP
• Apply the lithium-soap-based grease to the
bearing and the oil seal lip when installing.
• Left side of bearing shall be installed first.
• Install the oil seal with its manufacture's marks
or numbers facing outward.
ECA24420
NOTICE
Install the bearing by pressing its outer race
parallel.
2
TIP
Use a socket "1" that matches the diameter of
the bearing outer race and that of the oil seal.
2. Install:
TIP
Tighten the bolts in stages and in a crisscross
pattern.
4-7
FRONT WHEEL
4
3
2
LS
• Brake disc "1"
• Brake disc bolt "2"
Brake disc bolt
12 N·m (1.2 kgf·m, 8.9 lb·ft)
LOCTITE®
LS
1
4
1