wheel YAMAHA WR 250F 2003 User Guide

YAMAHA WR 250F 2003 User Guide WR 250F 2003 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52337/w960_52337-0.png YAMAHA WR 250F 2003 User Guide

Page 94 of 860

YAMAHA WR 250F 2003 User Guide MAINTENANCE SPECIFICATIONS
2 - 15
SPEC
Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Nipple (spoke)—72 3 0.3 2.2
Rear wheel sprocket M8 × 1.25 6 50 5.0 36
Rear brake disc

Page 194 of 860

YAMAHA WR 250F 2003 User Guide 3 - 3
INSP
ADJ
MAINTENANCE INTERVALS
*marked: For USAFRONT FORKS
Inspect and adjust
Replace oilSuspension oil “01”
Replace oil seal
FRONT FORK OIL SEAL AND DUST SEAL
Clean and lubeLithium base gre

Page 207 of 860

YAMAHA WR 250F 2003 User Guide 3 - 16
INSP
ADJ
PRE-OPERATION INSPECTION AND MAINTENANCE
EC320000
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice or a race, make sure the machine is in good op

Page 264 of 860

YAMAHA WR 250F 2003 User Guide 3 - 73
INSP
ADJ
4. Check:
Brake lever operation
A softy or spongy feeling 
→
Bleed brake system.
Refer to “BRAKE SYSTEM
AIR BLEEDING” section.
REAR BRAKE PAD INSPECTION 
AND REPLACEMENT
1. Insp

Page 266 of 860

YAMAHA WR 250F 2003 User Guide 3 - 75
INSP
ADJ
3. Inspect:
Brake fluid level
Refer to “BRAKE FLUID
LEVEL INSPECTION” section.
4. Check:
Brake pedal operation
A softy or spongy feeling 
→
Bleed brake system.
Refer to “BRAK

Page 268 of 860

YAMAHA WR 250F 2003 User Guide 3 - 77
INSP
ADJ
BRAKE FLUID LEVEL 
INSPECTION
1. Place the brake master cylinder
so that its top is in a horizontal
position.
2. Inspect:
Brake fluid level
Fluid at lower level 
→ Fill up.
aLower l

Page 272 of 860

YAMAHA WR 250F 2003 User Guide 3 - 81
INSP
ADJ
6. Install:
Chain joint 
1 
O-ring 
2 
Drive chain 
3 
NOTE:When installing the drive chain, apply
the lithium soap base grease on the
chain joint and O-rings.
7. Install:
Link pla

Page 274 of 860

YAMAHA WR 250F 2003 User Guide 3 - 83
INSP
ADJ
3. Adjust:
Drive chain slack
Drive chain slack adjustment 
steps:
Loosen the axle nut 
1 and
locknuts 
2.
Adjust the drive chain slack by
turning the adjusters 
3.
To tighten → Tu

Page 276 of 860

YAMAHA WR 250F 2003 User Guide 3 - 85
INSP
ADJ
EC36D001FRONT FORK OIL SEAL AND 
DUST SEAL CLEANING
1. Remove:
Protector
Dust seal 
1 
NOTE:Use a thin screw driver, and be care-
ful not to damage the inner fork tube
and dust seal.

Page 282 of 860

YAMAHA WR 250F 2003 User Guide 3 - 91
INSP
ADJ
EC36K000REAR SHOCK ABSORBER 
INSPECTION
1. Inspect:
Swingarm smooth action
Abnormal noise/unsmooth
action 
→ Grease the pivoting
points or repair the pivoting
points.
Damage/oil lea
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