2008 YAMAHA YZ450F Owners Manual

Page 161 of 188

YAMAHA YZ450F 2008  Owners Manual 5-32
SWINGARM
SWINGARM
REMOVING THE SWINGARM
Order Part name Qty Remarks
Hold the machine by placing the suitable stand 
under the engine.Refer to "HANDLING NOTE".
Brake hose holder Refer to "FRONT B

Page 162 of 188

YAMAHA YZ450F 2008  Owners Manual 5-33
SWINGARM
DISASSEMBLING THE SWINGARM
Order Part name Qty Remarks
1 Cap 2 Refer to removal section.
2 Relay arm 1
3 Connecting rod 1
4 Collar 2
5 Oil seal 2
6 Thrust bearing 2
7 Bushing 2
8 Oil se

Page 163 of 188

YAMAHA YZ450F 2008  Owners Manual 5-34
SWINGARM
HANDLING NOTE
Support the machine securely so 
there is no danger of it falling over.
REMOVING THE CAP
1. Remove:
• Left cap "1"
Remove with a slotted-head screw-
driver inserted under

Page 164 of 188

YAMAHA YZ450F 2008  Owners Manual 5-35
SWINGARM
INSTALLING THE SWINGARM
1. Install:
• Bushing "1"
• Thrust bearing "2"
• Oil seal "3"
•Collar "4"
To swingarm "5".
Apply the molybdenum disulfide 
grease on the bushings, thrust

Page 165 of 188

YAMAHA YZ450F 2008  Owners Manual 5-36
SWINGARM
11. Tighten:
• Nut (relay arm) "1"
12. Install:
•Cap "1"
Install the right cap with its mark "a" 
facing forward.
13. Install:
• Bolt (lower chain tensioner) "1"
• Washer "2"
•

Page 166 of 188

YAMAHA YZ450F 2008  Owners Manual 5-37
REAR SHOCK ABSORBER
REAR SHOCK ABSORBER
REMOVING THE REAR SHOCK ABSORBER
Order Part name Qty Remarks
Hold the machine by placing the suitable stand 
under the engine.Refer to "HANDLING NOTE".
Se

Page 167 of 188

YAMAHA YZ450F 2008  Owners Manual 5-38
REAR SHOCK ABSORBER
12 Bearing 2 Refer to removal section. Order Part name Qty Remarks

Page 168 of 188

YAMAHA YZ450F 2008  Owners Manual 5-39
REAR SHOCK ABSORBER
HANDLING NOTE
• Support the machine securely so 
there is no danger of it falling 
over.
• This rear shock absorber is pro-
vided with a separate type tank 
filled with hi