2005 YAMAHA BRUIN 250 service

8-63 1. Front brake lever
a. Front brake lever free play
1. Levier de frein avant
a. Jeu du levier de frein avant
1. Palanca del freno delantero
a. Juego de la palanca del freno delantero
EBU11880
Front brake lever free play
The front brake lever should have a free play of
zero mm at the lever end. If not, have a Yamaha
dealer check the brake system.
WARNING
_ Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:

Make sure the brakes operate smoothly
and that the free play is correct.


Make sure the brakes do not drag.


Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
_
U1P060.book Page 63 Monday, August 2, 2004 12:19 PM

8-71 1. Locknut 2. Adjusting bolt
a. Rear brake lever free play
1. Contre-écrou 2. Boulon de réglage
a. Jeu du levier de frein arrière
1. Contratuerca 2. Perno de ajuste
a. Juego de la palanca de freno trasero
3. Turn the adjusting bolt until free play at the
brake lever pivot is 5.0–7.0 mm.
4. Tighten the locknut.
5. Install the footboard.
WARNING
_ Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability,
which could lead to an accident.
After servicing:

Make sure the brakes operate smoothly
and that the free play is correct.


Make sure the brakes do not drag.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
_
U1P060.book Page 71 Monday, August 2, 2004 12:19 PM

8-98
4. Poser une ampoule de phare neuve dans la fixation
d’ampoule, puis la fixer en accrochant les languet-
tes sur l’ampoule.ATTENTION:_ Ne jamais toucher le verre d’une ampoule de phare
afin de ne pas laisser de résidus graisseux. La graisse
réduit la transparence du verre mais aussi la lumino-
sité de l’ampoule, ainsi que sa durée de service. Net-
toyer soigneusement toute crasse ou trace de doigts
sur l’ampoule avec un chiffon imbibé d’alcool ou de
diluant pour peinture. _5. Reposer la fixation de l’ampoule de phare en la
tournant dans le sens des aiguilles d’une montre.
6. Reposer le cache de la fixation d’ampoule à l’arriè-
re du phare. 4. Inserte una bombilla de faro nueva en el porta-
bombillas y, enganche entonces las lengüetas
en la bombilla.
AT E N C I O N :_ No toque la parte de vidrio de la bombilla del faro
para que no se ensucie de grasa, porque de lo
contrario, la transparencia del vidrio, la luminosi-
dad de la bombilla y la vida útil de la bombilla
quedarían adversamente afectadas. Limpie bien
toda la suciedad y huellas dactilares de la bombi-
lla del faro con un paño humedecido en alcohol
o disolvente. _5. Instale el portabombillas del faro girándolo ha-
cia la derecha.
6. Instale la cubierta del portabombillas del faro en
la parte posterior del faro.
U1P060.book Page 98 Monday, August 2, 2004 12:19 PM

8-103
EBU00413
Troubleshooting
Although Yamaha machines receive a rigid in-
spection before shipment from the factory, trouble
may occur during operation.
Any problem in the fuel, compression, or ignition
systems can cause poor starting and loss of pow-
er. The troubleshooting chart describes a quick,
easy procedure for making checks. If your ma-
chine requires any repair, take it to a Yamaha
dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to prop-
erly service your machine. Use only genuine
Yamaha parts on your machine. Imitation parts
may look like Yamaha parts, but they are often in-
ferior. Consequently, they have a shorter service
life and can lead to expensive repair bills.
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe in-
jury or property damage. Make sure there are
no open flames or sparks in the area, including
pilot lights from water heaters or furnaces.
U1P060.book Page 103 Monday, August 2, 2004 12:19 PM

10-2
10
Starting system Electric starter and recoil starter
Lubrication system Wet sump
Engine oil:
Type
Recommended engine oil classification: API Service SE, SF, SG type or higher
Quantity:
Without oil filter element removal 1.50 L
With oil filter element removal 1.60 LModel YFM250B
-20˚ -10˚ 0˚
10˚20˚ 30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
CAUTION:
In order to prevent clutch slippage (since the en-
gine 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.
U1P060.book Page 2 Monday, August 2, 2004 12:19 PM

10-8
Taux de compression 8,70:1
Système de démarrage Démarreur électrique et à réenroulement
Système de graissage Carter humide
Huile de moteur:
Type
Classification d’huile de moteur recommandée API Service de type SE, SF, SG ou supérieur Modèle YFM250B
-20˚ -10˚ 0˚
10˚20˚ 30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
ATTENTION:
Ne pas mélanger d’additif chimique à l’huile afin d’éviter
tout patinage de l’embrayage, car l’huile moteur lubrifie
également l’embrayage. Ne pas utiliser des huiles de grade
diesel “CD” ni des huiles de grade supérieur à celui spécifié.
S’assurer également de ne pas utiliser une huile portant la
désignation “ENERGY CONSERVING II” ou la même dé-
signation avec un chiffre plus élevé.
U1P060.book Page 8 Monday, August 2, 2004 12:19 PM