2004 YAMAHA WR 250F CD changer

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Page 311 of 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 3 - 120
INSP
ADJ
Méthode de charge à l’aide d’un chargeur à tension constante
Mesurer la tension en circuit
ouvert avant de charger.
Connecter un chargeur et un
ampèremètre à la batterie et

Page 362 of 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 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 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 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 520 of 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 4 - 195
ENGAC MAGNETO AND STARTER CLUTCH
EC4L4000INSPECTION
AC magneto
1. Inspect:
Rotor inner surface 
a 
Stator outer surface 
b 
Damage 
→ Inspect the crank-
shaft runout and crankshaft
bearing

Page 590 of 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 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 592 of 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 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 622 of 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 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 624 of 864

YAMAHA WR 250F 2004  Manuale de Empleo (in Spanish) 5 - 43
CHASFRONT BRAKE AND REAR BRAKE
4. Inspect:
Brake master cylinder piston
1 
Brake master cylinder cup 
2 
Wear/damage/score marks 
→
Replace brake master cylinder
kit.
ÈFront
ÉRear
ÈÉ
Br
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