Yamaha YZ450FA 2011 Owner's Service Manual page 252

3. Install:
• Lower bearing "1"
Install the bearing by pressing it on the side
having the manufacture's marks or numbers.
Installed depth of the bearing "a":
4 mm (0.16 in)
INSTALLING THE SPRING (REAR SHOCK
ABSORBER)
1. Install:
• Spring "1"
• Upper spring guide "2"
• Lower spring guide "3"
2. Tighten:
• Adjuster "1"
REAR SHOCK ABSORBER
3. Adjust:
• Spring length (installed)
Refer to "ADJUSTING THE REAR SHOCK
ABSORBER SPRING PRELOAD" section in
the CHAPTER 3.
4. Tighten:
• Locknut "1"
INSTALLING THE REAR SHOCK
ABSORBER
1. Install:
• Dust seal "1"
• O-ring "2"
• Collar "3"
• Apply the molybdenum disulfide grease on
the dust seal lips and collars.
• Apply the lithium soap base grease on the O-
rings.
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