lock YAMAHA WR 450F 2008 User Guide

YAMAHA WR 450F 2008 User Guide WR 450F 2008 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52477/w960_52477-0.png YAMAHA WR 450F 2008 User Guide

Page 43 of 224

YAMAHA WR 450F 2008 User Guide 2-16
TIGHTENING TORQUES
△Driven sprocket and wheel hub  M8 × 1.25 6 50 5.0 36
△Nipple (spoke) — 72 3 0.3 2.2
△Disc cover and rear brake caliper M6 × 1.0 2 10 1.0 7.2
△Protector and rear br

Page 64 of 224

YAMAHA WR 450F 2008 User Guide 3-9
ENGINE
CHECKING THE SILENCER AND 
EXHAUST PIPE
1. Inspect:
• Gasket "1"
Damage→Replace.
INSTALLING THE SILENCER AND 
EXHAUST PIPE
1. Install:
• Gasket 
• Exhaust pipe "1"
• Nut (exhaust

Page 65 of 224

YAMAHA WR 450F 2008 User Guide 3-10
ENGINE
Handling notes of coolant:
The coolant is harmful so it should be 
handled with special care.
• When coolant splashes to your 
eye.
Thoroughly wash your eye with 
water and see your doct

Page 66 of 224

YAMAHA WR 450F 2008 User Guide 3-11
ENGINE
2. Adjust:
• Throttle grip free play
Throttle grip free play adjustment 
steps:
a. Slide the adjuster cover.
b. Loosen the locknut "1".
c. Turn the adjuster "2" until the 
specified free

Page 69 of 224

YAMAHA WR 450F 2008 User Guide 3-14
ENGINE
ADJUSTING THE PILOT SCREW
1. Adjust:
• Pilot screw "1"
Adjustment steps:
To optimize the fuel flow at a smaller 
throttle opening, each machines pilot 
screw has been individually set a

Page 70 of 224

YAMAHA WR 450F 2008 User Guide 3-15
ENGINE
5. Adjust:
• Valve clearance
Adjustment steps:
a. Remove the camshaft (intake and 
exhaust).
Refer to "CAMSHAFTS" section 
in the CHAPTER 5.
b. Remove the valve lifters "1" and 
the pads

Page 73 of 224

YAMAHA WR 450F 2008 User Guide 3-18
CHASSIS
2. Remove:
• Brake lever cover
3. Adjust:
• Brake lever position
Brake lever position adjustment 
steps:
a. Loosen the locknut "1".
b. Turn the adjusting bolt "2" until the 
lever pos

Page 76 of 224

YAMAHA WR 450F 2008 User Guide 3-21
CHASSIS
When installing the drive chain, apply 
the lithium soap base grease on the 
chain joint and O-rings.
7. Install:
• Link plate
• Press the link plate onto the chain 
joint using a dri

Page 77 of 224

YAMAHA WR 450F 2008 User Guide 3-22
CHASSIS
1. Elevate the front wheel by placing 
a suitable stand under the engine.
2. Remove the air bleed screw "1" 
and release the internal pressure 
from the front fork.
3. Install:
• Air bl

Page 78 of 224

YAMAHA WR 450F 2008 User Guide 3-23
CHASSIS
Never attempt to turn the adjuster 
beyond the maximum or minimum 
setting.
5. Tighten:
•Locknut
6. Install:
• Rear frame (upper)
• Rear frame (lower)
ADJUSTING THE REAR SHOCK 
ABSO
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