2003 YAMAHA WR 250F CD changer

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Page 362 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 4 - 37
ENGCARBURETOR
Float height
1. Measure:
Float height 
a 
Out of specification 
→ Adjust.
Float height:
8.0 mm (0.31 in)
Measurement and adjustment 
steps:
Hold the carburetor in an upside
do

Page 452 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 4 - 127
ENGCLUTCH
Friction plate
1. Measure:
Friction plate thickness
Out of specification 
→ 
Replace friction plate as a set.
Measure at all four points.
Friction plate thickness:
2.9 ~ 3.1 mm 
(

Page 518 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 4 - 193
ENGAC MAGNETO AND STARTER CLUTCH
EC4L3000REMOVAL POINTS
Rotor
1. Remove:
Nut (rotor) 
1 
Plain washer
1
2. Remove:
Rotor 
1 
Use the rotor puller 
2.
Rotor puller:
YM-04141/90890-04141
EC4L

Page 586 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 5 - 9
CHASFRONT WHEEL AND REAR WHEEL
EC593000REMOVAL POINTSEC523101Rear wheel
1. Remove:
Wheel 
1 
NOTE:Push the wheel forward and remove
the drive chain 
2.
EC513201Wheel bearing (if necessary)
1. R

Page 588 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 5 - 11
CHASFRONT WHEEL AND REAR WHEEL
EC514200Wheel axle
1. Measure:
Wheel axle bends
Out of specification 
→ 
Replace.
Use the dial gauge 
1.
NOTE:The bending value is shown by one
half of the dia

Page 618 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 5 - 41
CHASFRONT BRAKE AND REAR BRAKE
Brake caliper piston seal kit
1. Remove:
Dust seal 
1 
Piston seal 
2 
NOTE:Remove the piston seals and dust
seals by pushing them with a finger.
CAUTION:
Never

Page 620 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 5 - 43
CHASFRONT BRAKE AND REAR BRAKE
Brake caliper
1. Inspect:
Brake caliper cylinder inner
surface 
a 
Wear/score marks 
→ Replace
brake caliper assembly.
È
Front
É
Rear
É È
2. Inspect:
Brak

Page 704 of 860

YAMAHA WR 250F 2003  Notices Demploi (in French) 5 - 127
CHASSWINGARM
EC573000REMOVAL POINTSEC573200Bearing
1. Remove:
Bearing 
1 
NOTE:Remove the bearing by pressing its
outer race.
INSPECTION
Wash the bearings, bushings, col-
lars, and covers in
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