Yamaha WR450F 2021 Owner's Service Manual page 186

2. Install:
• Bearing race
• Upper bearing "1"
• Bearing race cover "2"
TIP
Apply the lithium-soap-based grease on the
bearing and bearing race cover lip.
3. Install:
• Lower bracket "1"
TIP
Apply the lithium-soap-based grease on the
bearing, the portion "a" and thread of the steer-
ing stem.
LS
a
4. Install:
• Steering ring nut "1"
Steering ring nut
7 N·m (0.7 kgf·m, 5.2 lb·ft)
TIP
Install the steering ring nut with its stepped side
"a" facing downward.
Tighten the steering ring nut with a steering
nut wrench "2".
Refer to "CHECKING AND ADJUSTING
THE STEERING HEAD" on page 3-27.
5. Check the steering stem by turning this lock
to lock. If there is any binding, remove the
steering stem and check the steering bear-
ing.
6. Install:
• Washer "1"
LS LS
1
7. Install:
• Front fork "1"
• Upper bracket "2"
TIP
• Temporarily tighten the pinch bolts (lower
bracket).
• Do not tighten the pinch bolts (upper bracket)
yet.
4-58
STEERING HEAD