2004 YAMAHA WR 250F engine oil

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Page 234 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 43
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ADJ
4. Remove:
Oil tank cap 
1 
Oil filler cap 
2 
Frame oil drain bolt 
3 
Crankcase oil drain bolt 
4 
Oil filter element drain bolt 
5 
Drain the crankcase and oil
tank (frame) of

Page 236 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 45
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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 238 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 47
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ADJ
OIL PRESSURE INSPECTION
1. Check:
Oil pressure
Checking steps:
Slightly loosen the oil pressure
check bolt 
1.
Start the engine and keep it
idling until oil starts to seep from
the

Page 240 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 49
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ADJ
ENGINE IDLING SPEED 
ADJUSTMENT
1. Start the engine and thoroughly
warm it up.
2. Adjust:
Engine idling speed
Adjustment steps:
Adjust the pilot screw.
Refer to “PILOT SCREW
ADJUST

Page 246 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 55
INSP
ADJ
EXAMPLE:
Installed pad number = 148
Rounded off value = 150
NOTE:Pads can only be selected in
0.05 mm increments.
Locate the rounded-off value
and the measured valve clear-
ance in th

Page 272 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 81
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ADJ
6. Install:
Chain joint 
1 
O-ring 
2 
Drive chain 
3 
NOTE:When installing the drive chain, apply
the lithium soap base grease on the
chain joint and O-rings.
7. Install:
Link pla

Page 276 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 85
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EC36C000FRONT FORK INSPECTION
1. Inspect:
Front fork smooth action
Operate the front brake and
stroke the front fork.
Unsmooth action/oil leakage
→ Repair or replace.
EC36D001FRONT

Page 282 of 864

YAMAHA WR 250F 2004  Notices Demploi (in French) 3 - 91
INSP
ADJ
EC36K000REAR SHOCK ABSORBER 
INSPECTION
1. Inspect:
Swingarm smooth action
Abnormal noise/unsmooth
action 
→ Grease the pivoting
points or repair the pivoting
points.
Damage/oil lea
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