2007 YAMAHA WR 250F wheel

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Page 304 of 912

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

YAMAHA WR 250F 2007  Owners Manual 3 - 95
INSP
ADJ
3. Adjust:
Drive chain slack
Drive chain slack adjustment 
steps:
Loosen the axle nut 
1 and
locknuts 
2.
Adjust the drive chain slack by
turning the adjusters 
3.
To tighten → Tu

Page 308 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 97
INSP
ADJ
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
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 le

Page 322 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 111
INSP
ADJ
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 324 of 912

YAMAHA WR 250F 2007  Owners Manual 3 - 113
INSP
ADJ
2. Inspect:
Bearing free play
Exist play 
→ Replace.
EC36U013STEERING HEAD INSPECTION 
AND ADJUSTMENT
1. Elevate the front wheel by plac-
ing a suitable stand under the
engine.
2.

Page 380 of 912

YAMAHA WR 250F 2007  Owners Manual 4 - 21
TUNSETTING
EC720000
CHASSIS
Selection of the secondary 
reduction ratio (Sprocket)
<Requirement for selection of sec-
ondary gear reduction ratio>
It is generally said that the second-
ary gea

Page 382 of 912

YAMAHA WR 250F 2007  Owners Manual 4 - 23
TUNSETTING
EC72N000Drive and rear wheel sprockets 
setting parts
* For AUS and NZ
Part name Size Part number
Drive sprocket 
1 (STD) 13T
* 14T9383B-13218
9383B-14222
Rear wheel 
sprocket 
2 
(S