2007 YAMAHA WR 250F oil

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Page 302 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 91
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DRIVE CHAIN INSPECTION
1. Measure:
Drive chain length (15 links) 
a 
Out of specification 
→ 
Replace.
NOTE:While measuring the drive chain
length, push down on the drive
chain to

Page 304 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 93
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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 308 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 97
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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 314 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 103
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EC36K000REAR SHOCK ABSORBER 
INSPECTION
1. Inspect:
Swingarm smooth action
Abnormal noise/unsmooth
action 
→ Grease the pivoting
points or repair the pivoting
points.
Damage/oil le

Page 322 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 111
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EC36Q000TIRE PRESSURE CHECK
1. Measure:
Tire pressure
Out of specification 
→ Adjust.
NOTE:Check the tire while it is cold.
Loose bead stoppers allow the tire
to slip off its pos

Page 330 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 119
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LUBRIFICATION
Pour assurer le bon fonctionnement de
tous les organes, lubrifier la moto avant
la première utilisation, après le rodage,
ainsi qu’après chaque utilisation.
1
Tous

Page 334 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 123
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2. Attach:
Timing light 
Inductive tachometer 
To the ignition coil lead
(orange lead 
1).
Timing light:
YM-33277-A/
90890-03141
1
3. Adjust:
Engine idling speed
Refer to “ENGINE

Page 336 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 125
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BATTERY INSPECTION AND 
CHARGING
WARNING
Batteries generate explosive
hydrogen gas and contain electro-
lyte which is made of poisonous
and highly caustic sulfuric acid. 
Therefore, a