2004 YAMAHA BEAR TRACKER 250 tire type

2-13

Always be careful when skidding or sliding.
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain. On extremely slippery surfaces, such
as ice, go slowly and be very cautious in order
to reduce the chance of skidding or sliding out
of control.


Never operate an ATV in fast flowing water or
in water deeper than that recommended in this
manual. Remember that wet brakes may have
reduced stopping ability. Test your brakes after
leaving water. If necessary, apply them several
times to let friction dry out the linings.


Always be sure there are no obstacles or peo-
ple behind you when you operate in reverse.
When it is safe to proceed in reverse, go slowly.


Always use the size and type tires specified in
this manual.


Always maintain proper tire pressure as de-
scribed in this manual.
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5-19
EBU00158
Tires
Always use the recommended tires.
WARNING
Use of improper tires on this ATV, or operation
of this ATV with improper or uneven tire pres-
sure, may cause loss of control, increasing
your risk of accident.
Pay attention to the following.
1. The tires listed below have been approved
by Yamaha Motor Co., Ltd. for this model.
Other tire combinations are not recom-
mended.ACE-01EACE-01E
Manufacturer Size Type
FrontDUNLOP AT22
× 7-10 KT701
CHENG SHIN AT22
× 7-10 M905
RearDUNLOP AT22
× 10-10 KT705
CHENG SHIN AT22
× 10-10 M906
U4XE65.book Page 19 Tuesday, May 6, 2003 1:38 PM

7-15
WARNING
_ Always use the size and type tires specified in
the Owner’s Manual for this vehicle on pages
5-19–5-21. Always maintain proper tire pres-
sure as described in the Owner’s Manual on
page 5-23. Use of improper tires on this ATV,
or operation of this ATV with improper or un-
even tire pressure, may cause loss of control,
increasing your risk of an accident. _Do not operate at speeds too fast for your
skills or the conditions.
WARNING
_ Always go at a speed that is proper for the ter-
rain, visibility and operating conditions, and
your experience. Operating this ATV at speeds
too fast for your skills or the conditions in-
creases your chances of losing control of the
ATV, which can result in an accident. _
U4XE65.book Page 15 Tuesday, May 6, 2003 1:38 PM

8-22
FBU11450
Huile de transmission finale
Mesure du niveau d’huile de transmission finale
1. Placer le véhicule sur une surface de niveau.
2. Retirer le boulon de remplissage, puis contrôler le
niveau d’huile dans le carter de transmission finale.N.B.:_ L’huile doit arriver jusqu’au bord de l’orifice de remplis-
sage. _3. Si l’huile n’atteint pas le bord de l’orifice de rem-
plissage, ajouter de l’huile de moteur du type re-
commandé jusqu’au niveau spécifié.ATTENTION:_ Ne pas laisser pénétrer de corps étrangers dans le car-
ter de transmission finale. _4. Remettre le boulon de l’orifice de remplissage
d’huile en place.
SBU11450
Aceite de la transmisión final
Medición del aceite de la transmisión final
1. Sitúe la máquina sobre una superficie nivelada.
2. Quite el perno del orificio de llenado y comprue-
be el nivel de aceite del cárter de la transmisión
final.NOTA:_ Deberá llegar hasta el borde del orificio de llenado. _3. Si el aceite está por debajo del borde del orificio
de llenado, añada aceite suficiente del tipo re-
comendado hasta el nivel adecuado.AT E N C I O N :_ Asegúrese de que no entren materias extrañas
en el cárter de la transmisión final. _4. Instale el perno del orificio de llenado de aceite.
U4XE65.book Page 22 Tuesday, May 6, 2003 1:38 PM

8-24
Changement du niveau d’huile de transmission finale
1. Déposer le couvercle du carter de transmission fi-
nale après avoir retiré les boulons.
2. Placer le véhicule sur une surface de niveau.
3. Placer un récipient sous le carter de transmission fi-
nale afin d’y recueillir l’huile vidangée.
4. Déposer le boulon de l’orifice de remplissage et le
boulon de vidange afin de vidanger l’huile.
5. Monter le boulon de vidange, puis le serrer au cou-
ple spécifié.
6. Verser de l’huile de transmission finale du type re-
commandé jusqu’au goulot de l’orifice de remplis-
sage. Couple de serrage:
Boulon de vidange du carter de transmission
finale:
23 Nm (2,3 m·kgf)
Huile recommandée:
Voir page 10-9.
Quantité d’huile:
0,25 l
Cambio del aceite de la transmisión final
1. Desmonte la cubierta del cárter de la transmi-
sión final extrayendo los pernos.
2. Sitúe la máquina sobre una superficie nivelada.
3. Coloque un recipiente debajo del cárter de la
transmisión final para el aceite usado.
4. Quite el perno del orificio de llenado y el perno
de drenaje para drenar el aceite.
5. Instale el perno de drenaje y apriételo al par
prescrito.
6. Añada aceite de la transmisión final hasta el
borde del orificio de llenado. Par de apriete:
Perno de drenaje del aceite del cárter de la
transmisión final:
23 Nm (2,3 m·kgf)
Aceite recomendado:
Ver página 10-15.
Cantidad de aceite:
0,25 L
E-8.fm Page 24 Thursday, May 8, 2003 3:02 PM

10-4
Transmission:
Primary reduction system Spur gear
Primary reduction ratio 73/22 (3.318)
Secondary reduction system Shaft drive
Secondary reduction ratio 19/18
× 46/11 (4.414)
Transmission type Constant mesh, 5-speed forward, 1-speed reverse
Operation Left foot operation
Gear Ratio:
1st 34/12 (2.833)
2nd 34/19 (1.789)
3rd 29/22 (1.318)
4th 26/25 (1.040)
5th 23/28 (0.821)
Reverse 73/22
× 34/12
× 19/18 (9.924)
Chassis:
Frame type Steel tube
Caster angle 4°
Trail 20 mm
Tire:
Type Tubeless
Size: Front AT22
× 7-10
Size: Rear AT22 × 10-10 Model YFM250X
U4XE65.book Page 4 Tuesday, May 6, 2003 1:38 PM