light YAMAHA WR 250F 2007 Owner's Manual

YAMAHA WR 250F 2007 Owner's Manual WR 250F 2007 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52333/w960_52333-0.png YAMAHA WR 250F 2007 Owner's Manual

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 326 of 912

YAMAHA WR 250F 2007 Owners Manual 3 - 115
INSP
ADJ
Loosen the steering ring nut
one turn.
Retighten the steering ring nut
using the steering nut wrench.
WARNING
Avoid over-tightening.
T R..
Steering ring nut 
(final tightening):
7 N

Page 328 of 912

YAMAHA WR 250F 2007 Owners Manual 3 - 117
INSP
ADJ
T R..
Steering stem nut:
145 Nm 
(14.5 m  kg, 105 ft  lb)
Handlebar upper holder:
28 Nm 
(2.8 m  kg, 20 ft  lb)
Pinch bolt (upper 
bracket):
21 Nm 
(2.1 m  kg, 15 ft  lb)
Headli

Page 330 of 912

YAMAHA WR 250F 2007 Owners Manual 3 - 119
INSP
ADJ
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 332 of 912

YAMAHA WR 250F 2007 Owners Manual 3 - 121
INSP
ADJ
EC370000
ELECTRICAL
EC371001SPARK PLUG INSPECTION
1. Remove:
Spark plug
2. Inspect:
Electrode 
1 
Wear/damage 
→ Replace.
Insulator color 
2 
Normal condition is a medium
to ligh

Page 334 of 912

YAMAHA WR 250F 2007 Owners Manual 3 - 123
INSP
ADJ
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
INSP
ADJ
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

Page 356 of 912

YAMAHA WR 250F 2007 Owners Manual 3 - 145
INSP
ADJ
REPLACING THE HEADLIGHT 
BULBS
1. Remove:
Headlight
Refer to “SEAT, FUEL TANK
AND SIDE COVERS”.
2. Remove:
Headlight bulb holder cover 
1 
3. Remove:
Headlight bulb holder 
1

Page 358 of 912

YAMAHA WR 250F 2007 Owners Manual 3 - 147
INSP
ADJELECTRICAL
ADJUSTING THE HEADLIGHT 
BEAMS
1. Adjust:
Headlight beam (vertically)
Adjusting steps:
Turn the adjusting screw 
1 in
direction 
a or 
b.
Direction 
a Headlight beam is 
r

Page 362 of 912

YAMAHA WR 250F 2007 Owners Manual 4 - 3
TUNSETTING
CAUTION:
The carburetor is extremely sen-
sitive to foreign matter (dirt,
sand, water, etc.). During instal-
lation, do not allow foreign mat-
ter to get into the carburetor.
Always