2008 YAMAHA YZ450F air suspension

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Page 49 of 188

YAMAHA YZ450F 2008  Owners Manual 3-3
MAINTENANCE INTERVALS
Lubricate pivot point●●
Check brake disc surface●●
Check fluid level and leakage●●
Retighten brake disc bolts, cali-
per bolts, master cylinder bolts 
and union b

Page 148 of 188

YAMAHA YZ450F 2008  Owners Manual 5-19
FRONT FORK
Contamination →Clean.
• O-ring "2"
Wear/damage 
→Replace.
• Piston metal "3"
Wear/damage 
→Replace.
• Spring "4"
Damage/fatigue 
→Replace base 
valve.
• Air bleed screw