Yamaha WR450F(Y) 2009 Owner's Service Manual page 168

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2. Install:
• Brake disc "1"
• Bolt (brake disc) "2"
Bolt (brake disc):
14 Nm (1.4 m•kg, 10
ft•lb)
Tighten the bolts in stage, using a
crisscross pattern.
3. Install:
• Rear wheel sprocket "1"
• Bolt (rear wheel sprocket) "2"
• Washer (rear wheel sprocket) "3"
• Nut (rear wheel sprocket) "4"
Nut (rear wheel sprock-
et):
50 Nm (5.0 m•kg, 36
ft•lb)
Tighten the nuts in stage, using a
crisscross pattern.
4. Install:
• Collar "1"
Apply the lithium soap base grease
on the oil seal lip.
FRONT WHEEL AND REAR WHEEL
5. Install:
• Wheel
Install the brake disc "1" between the
brake pads "2" correctly.
6. Install:
• Drive chain "1"
Push the wheel "2" forward and install
the drive chain.
7. Install:
• Left drive chain puller "1"
• Wheel axle "2"
• Install the left drive chain puller, and
insert the wheel axle from left side.
• Apply the lithium soap base grease
on the wheel axle.
8. Install:
• Right drive chain puller "1"
• Washer "2"
• Nut (wheel axle) "3"
Temporarily tighten the nut (wheel
axle) at this point.
6-5
9. Adjust:
• Drive chain slack "a"
Drive chain slack:
48–58 mm (1.9–2.3 in)
Refer to "ADJUSTING THE
DRIVE CHAIN SLACK" section in
the CHAPTER 3.
10. Tighten:
• Nut (wheel axle) "1"
Nut (wheel axle):
125 Nm (12.5 m•kg, 90
ft•lb)
• Locknut "2"
Locknut:
19 Nm (1.9 m•kg, 13
ft•lb)

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