Oil YAMAHA BRUIN 250 2005 User Guide

8-9 * It is recommended that these items be serviced by a Yamaha dealer.
NOTE:

Recommended brake fluid: DOT 4


Brake fluid replacement:
When disassembling the master cylinder or caliper, replace the brake fluid. Normally check the
brake fluid level and add fluid as required.
On the inner parts of the master cylinder and caliper, replace the oil seals every two years.
Replace the brake hoses every four years, or if cracked or damaged.
Battery*Check specific gravity.
Check that the breather hose is routed correctly.
Correct if necessary.Lights and switches*Check operation.
Adjust headlight beams.
ITEM ROUTINEWhichever
comes firstINITIAL EVERY
month136612
km
(mi)320
(200)1,200
(750)2,400
(1,500)2,400
(1,500)4,800
(3,000)
hours 20 75 150 150 300
U1P060.book Page 9 Monday, August 2, 2004 12:19 PM

8-11
Huile de moteurChanger. (Faire d’abord chauffer le moteur.)Élément du filtre à huile mo-
teurNettoyer.Crépine à huile moteurNettoyer.Huile de transmission
finaleContrôler le niveau et s’il y a fuite.
Changer.Frein avant*Contrôler le fonctionnement et l’étanchéité. Voir N.B. page 8-12.
Réparer si nécessaire.Frein arrière*Contrôler le fonctionnement.
Régler si nécessaire.Câble de sécurité du levier
de présélection*Contrôler le fonctionnement.
Régler si nécessaire.Embrayage*Contrôler le fonctionnement.
Régler si nécessaire.Roues*Contrôler l’équilibrage, l’état et le voile.
Réparer si nécessaire.Roulements de roue*Contrôler les roulements (jeu, endommagement).
Remplacer si endommagés.Suspension avant et
arrière*Contrôler le fonctionnement.
Réparer si nécessaire.Direction*Contrôler le fonctionnement et remplacer si endommagée.
Contrôler la convergence et régler si nécessaire.Arbre de direction*Lubrifier tous les 6 mois à la graisse à base de savon au lithium
(graisse universelle)Visserie*Contrôler le serrage de toute la visserie du châssis.
Corriger si nécessaire.
DESCRIPTION VÉRIFICATIONÀ la 1ère des
deux
échéancesINITIAL TOUS LES
mois136612
km
(mi)320
(200)1.200
(750)2.400
(1.500)2.400
(1.500)4.800
(3.000)
heures 20 75 150 150 300
U1P060.book Page 11 Monday, August 2, 2004 12:19 PM

8-17 1. Engine oil filler cap
2. Dipstick
3. Maximum level mark
4. Minimum level mark
1. Bouchon de remplissage d’huile de moteur
2. Jauge
3. Repère de niveau maximum
4. Repère de niveau minimum
1. Tapa del filtro de aceite de motor
2. Varilla de nivel de aceite
3. Marca de nivel máximo
4. Marca de nivel mínimo
EBU11005
Engine oil and oil filter element
The engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter element cleaned at the intervals speci-
fied in the periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the ATV on a level surface.
2. Warm up the engine for several minutes, and
then turn it off.
3. Wait at least ten minutes until the oil level set-
tles before checking.
4. Remove the engine oil filler cap, and then
wipe the dipstick off with a clean rag. Insert
the dipstick in the filler hole (without screwing
it in), and then remove it again to check the oil
level.NOTE:_

Be sure to wait at least ten minutes until the
oil level settles before checking.


The oil level should be between the minimum
and maximum level marks.
_
U1P060.book Page 17 Monday, August 2, 2004 12:19 PM

8-19 1. Engine oil drain bolt 2. O-ring
3. Compression spring 4. Engine oil strainer
1. Boulon de vidange de l’huile moteur
2. Joint torique
3. Ressort de compression
4. Crépine à huile de moteur
1. Perno de drenaje del aceite de motor
2. Junta tórica
3. Muelle de compresión
4. Tamiz de aceite de motor
5. If the engine oil is at or below the minimum
level mark, add sufficient oil of the recom-
mended type to raise it to the correct level.CAUTION:_ Make sure that no foreign material enters the
crankcase. _6. Insert the dipstick into the oil filler hole, and
then tighten the engine oil filler cap.
To change the engine oil (with or without oil fil-
ter element cleaning)
1. Place the ATV on a level surface.
2. Warm up the engine for several minutes, and
then turn it off.
3. Place a container under the engine to collect
the used oil.
4. Remove the engine oil filler cap, and then re-
move the engine oil drain bolt to drain the oil
from the crankcase.
U1P060.book Page 19 Monday, August 2, 2004 12:19 PM

8-21 1. Footboard 2. Bolt (× 8)
1. Repose-pied 2. Boulon (× 8)
1. Plataforma para los pies 2. Perno (× 8)
1. Adjusting nut (brake rod)
1.Écrou de réglage (tringle de frein)
1. Tuerca de ajuste (barra del freno)
CAUTION:_ When removing the engine oil drain bolt, the
compression spring, oil strainer and O-ring
will fall out. Take care not to lose these parts. _NOTE:_ Skip steps 5–11 if the oil filter element is not being
cleaned. _5. Remove the footboard by removing the bolts.
6. Fully loosen the brake pedal free play adjust-
ing nut, push the brake pedal downward, and
then remove the oil filter element cover bolts.
U1P060.book Page 21 Monday, August 2, 2004 12:19 PM

8-23 1. Oil filter element cover 2. Adjusting nut
1. Couvercle de l’élément du filtre à huile 2.Écrou de réglage
1. Cubierta del elemento del filtro de aceite
2. Tuerca de ajuste
1. Engine oil filter element 2. O-ring
1.Élément du filtre à huile de moteur 2. Joint torique
1. Elemento del filtro de aceite de motor
2. Junta tórica
7. Remove the oil filter element cover and oil fil-
ter element.NOTE:_ To remove or install the oil filter element cover and
oil filter element, move the select lever safety sys-
tem cable away from the cover. _CAUTION:_ Do not loosen the adjusting nuts shown when
removing the oil filter element cover or oil filter
element. _8. Clean the oil strainer and oil filter element
with solvent.
9. Check the O-ring for damage and replace it if
necessary.NOTE:_ Make sure the O-ring is seated properly. _
U1P060.book Page 23 Monday, August 2, 2004 12:19 PM

8-25
10. Install the oil filter element.
11. Install the oil filter element cover by installing
the bolts, and then tightening them to the
specified torque.
12. Install the oil strainer, compression spring,
O-ring and engine oil drain bolt, and then
tighten the engine oil drain bolt to the speci-
fied torque.CAUTION:_ Before installing the engine oil drain bolt, be
sure to install the O-ring, compression spring
and oil strainer. _
Tightening torque:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf)
U1P060.book Page 25 Monday, August 2, 2004 12:19 PM

8-27
13. Add the specified amount of the recommend-
ed engine oil, then install and tighten the en-
gine oil filler cap.CAUTION:_

In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives. Do not
use oils with a diesel specification of “CD”
or oils of a higher quality than specified. In
addition, do not use oils labeled “ENERGY
CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_
Recommended engine oil:
See page 10-2.
Oil quantity:
Without oil filter element removal:
1.50 L
With oil filter element removal:
1.60 L
U1P060.book Page 27 Monday, August 2, 2004 12:19 PM

8-29 1. Bolt A (× 6) 2. Bolt B (× 2)
1. Boulon A (× 6) 2. Boulon B (× 2)
1. Perno A (× 6) 2. Perno B (× 2)
14. Start the engine, and then let it idle for seve-
ral minutes while checking it for oil leakage. If
oil is leaking, immediately turn the engine off
and check for the cause.
15. Turn the engine off, and then check the oil
level and correct it if necessary.
16. Install the footboard by installing the bolts,
and then tightening them to the specified
torque.
17. Adjust the brake pedal free play. (See page
8-67.) Tightening torque:
Footboard bolt A:
3.8 Nm (0.38 m·kgf)
Footboard bolt B:
6.5 Nm (0.65 m·kgf)
U1P060.book Page 29 Monday, August 2, 2004 12:19 PM

8-31 1. Final gear oil
2. Correct oil level
3. Final gear oil filler bolt
1. Huile de transmission finale
2. Niveau d’huile correct
3. Boulon de l’orifice de remplissage du carter de transmission finale
1. Aceite de la transmisión final
2. Nivel de aceite exacto
3. Perno del orificio de llenado de aceite de la transmisión final
EBU11453
Final gear oil
Checking the final gear oil
1. Place the ATV on a level surface.
2. Remove the oil filler bolt, and then check the
oil level in the final gear case.NOTE:_ The oil level should be at the brim of the filler hole. _3. If the oil is below the brim of the filler hole,
add sufficient oil of the recommended type to
raise it to the correct level.CAUTION:_ Be sure no foreign material enters the final
gear case. _4. Install the oil filler bolt, and then tighten it to
the specified torque.
Tightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf)
U1P060.book Page 31 Monday, August 2, 2004 12:19 PM