2003 YAMAHA WR 250F ABS

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Page 720 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 143
CHASREAR SHOCK ABSORBER
Extent of removal Order Part name Q’ty Remarks
1 Locking tie 2
2 Taillight coupler 1
3 Starting circuit cut-off relay coupler 1
4 Plastic band 2
5 Clamp (air filter j

Page 724 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 147
CHASREAR SHOCK ABSORBER
HANDLING NOTE
WARNING
This rear shock absorber is pro-
vided with a separate type tank
filled with high-pressure nitrogen
gas. To prevent the danger of
explosion, read

Page 726 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 149
CHASREAR SHOCK ABSORBER
EC583000REMOVAL POINTSEC583320Bearing
1. Remove:
Stopper ring 
(upper bearing) 
1 
NOTE:Press in the bearing while pressing
its outer race and remove the stop-
per rin

Page 728 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 151
CHASREAR SHOCK ABSORBER
EC585000ASSEMBLY AND INSTALLATIONEC585300Bearing
1. Install:
Upper bearing 
1 
NOTE:Install the bearing parallel until the
stopper ring groove appears by
pressing its

Page 730 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 153
CHASREAR SHOCK ABSORBER
3. Adjust:
Spring length (installed) 
a 
* For EUROPE
NOTE:The length of the spring (installed)
changes 1.5 mm (0.06 in) per turn of
the adjuster.
CAUTION:
Never attem

Page 732 of 860

YAMAHA WR 250F 2003  Owners Manual 5 - 155
CHASREAR SHOCK ABSORBER
3. Install:
Rear shock absorber
4. Install:
Bolt (rear shock absorber-
frame) 
1 
Nut (rear shock absorber-
frame) 
2 
NOTE:Apply the molybdenum disulfide
grease on

Page 773 of 860

YAMAHA WR 250F 2003  Owners Manual 6 - 40
–+ELEC
KONTROLLE UND REPARATUR
1. Kontrollieren:
Kommutator
Schmutz 
→ Mit Sandpapier
Feinheit 600 reinigen.
2. Messen:
Kommutatordurchmesser 
a 
Unvorschriftsmäßig 
→ Den
Startermoto

Page 775 of 860

YAMAHA WR 250F 2003  Owners Manual 6 - 42
–+ELEC
5. Messen:
Bürstenlänge 
a 
Unvorschriftsmäßig 
→ Die
Bürsten als Satz erneuern.
Min. Bürstenlänge
3,5 mm (0,14 in)
6. Messen:
Bürstenfederkraft
Unvorschriftsmäßig 
→ D