2006 YAMAHA WR 250F clutch

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Page 472 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 131
ENGCLUTCH
EC4A3000REMOVAL POINTS
Clutch boss
1. Remove:
Nut 
1 
Lock washer 
2 
Clutch boss 
3 
NOTE:Straighten the lock washer tab and
use the clutch holding tool 
4 to hold
the clutch bos

Page 474 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 133
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 476 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 135
ENGCLUTCH
EC4A5000ASSEMBLY AND INSTALLATION
Push lever shaft
1. Install:
Push lever shaft 
1 
Bolt (push lever shaft) 
2 
NOTE:Apply the lithium soap base grease
on the oil seal lip.
Apply

Page 478 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 137
ENGCLUTCH
4. Install:
Seat plate 
1 
Cushion spring 
2 
NOTE:Install the seat plate with its cham-
fered portion 
a facing the clutch
boss 
3.
Install the seat plate so that it is not
caug

Page 480 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 139
ENGCLUTCH
8. Install:
Pressure plate 
1 
9. Install:
Clutch spring 
1 
Bolt (clutch spring) 
2 
NOTE:Tighten the bolts in stage, using a
crisscross pattern.
T R..8 Nm (0.8 m · kg, 5.8 ft

Page 498 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 157
ENGBALANCER
BALANCER
Extent of removal:
1 Balancer shaft drive gear
2 Balancer shaft
Extent of removal Order Part name Q’ty Remarks
BALANCER REMOVAL
Preparation for removal Primary driven ge

Page 506 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 165
ENGOIL PUMP
OIL PUMP
Extent of removal:
1 Oil pump removal
2 Oil pump disassembly
Extent of removal Order Part name Q’ty Remarks
OIL PUMP REMOVAL AND 
DISASSEMBLY
Preparation for removal Pri

Page 530 of 900

YAMAHA WR 250F 2006  Manuale de Empleo (in Spanish) 4 - 189
ENGKICK SHAFT AND SHIFT SHAFT
Shift shaft
1. Install:
Roller 
1 
Collar 
2 
Torsion spring 
3 
Shift shaft 
4 
NOTE:Apply the engine oil on the roller and
shift shaft.
2. Install:
Shift p