2003 YAMAHA WR 250F oil filter

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Page 236 of 860

YAMAHA WR 250F 2003  Owners Manual 3 - 45
INSP
ADJ
8. Install:
Copper washer 
1 
Oil strainer (frame) 
2 
Oil hose 
3 
Bolt (oil hose) 
4 
Oil hose clamp 
5 
Lower engine bracket
9. Install:
Copper washer
Oil filter element dra

Page 460 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 135
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
OIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
Extent of removal:
1 Oil filter element removal
2 Water pump removal
3 Righ

Page 464 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 139
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
Extent of removal Order Part name Q’ty Remarks
3 Water pump housing 1
4 Oil delivery pipe 1
5 Bolt (oil hose) 1
6 Kickstarter cran

Page 468 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 143
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
REMOVAL POINTS
Impeller shaft
1. Remove:
Impeller 
1 
Washer 
2 
Impeller shaft 
3 
NOTE:Hold the impeller shaft on its width
acr

Page 470 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 145
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
EC444300Impeller shaft gear
1. Inspect:
Gear teeth 
a 
Wear/damage 
→ Replace.
EC4H4600Bearing
1. Inspect:
Bearing
Rotate inner

Page 472 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 147
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
Impeller shaft
1. Install:
Impeller shaft 
1 
Washer 
2 
Impeller 
3 
NOTE:Take care so that the oil seal lip is
not damaged or

Page 474 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 149
ENGOIL FILTER ELEMENT, WATER PUMP AND RIGHT CRANKCASE COVER
Kickstarter crank
1. Install:
Kickstarter crank 
1 
Washer 
2 
Bolt (kickstarter crank) 
3 
NOTE:Install the kickstarter crank so

Page 476 of 860

YAMAHA WR 250F 2003  Owners Manual 4 - 151
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
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