oil YAMAHA WARRIOR 350 2003 User Guide

8-21
CAUTION:
Be sure no foreign material enters the crank-
case. 12. Warm up the engine for several minutes at
idle speed. Check for oil leakage while warm-
ing up.CAUTION:
If oil leakage is found, stop the engine immedi-
ately and check for the cause. Recommended oil:
See page 10-2.
Oil quantity:
Periodic oil change:
2.4 L
With oil filter replacement:
2.5 L
Total amount:
3.2 L
U5NF61.book Page 21 Wednesday, June 13, 2001 5:18 PM

8-23 1. Oil gallery bolt
1. Boulon de rampe de graissage
1. Perno del conducto de aceite
Oil pressure check
1. Put a cloth around the cylinder.
2. Slightly loosen the oil gallery bolt in the cylin-
der head.
3. Start the engine and keep it idling until oil be-
gins to seep from the oil gallery. If no oil
comes out after one minute, turn the engine
off so it will not seize and find the cause.
4. Start the engine, and then check the oil pres-
sure.
5. After checking, tighten the oil gallery bolt to
the specified torque.CAUTION:_ Be sure to check the oil pressure after replac-
ing the engine oil. _
Tightening torque:
Oil gallery bolt:
7 Nm (0.7 m·kgf)
U5NF61.book Page 23 Wednesday, June 13, 2001 5:18 PM

8-31 1. Unlock
1. Déverrouiller
1. Levántelo
1. Element retaining plate 2. Guide
3. Air filter element
1. Plaquette de retenue d’élément 2. Guide
3.Élément du filtre à air
1. Placa de retención del elemento 2. Guía
3. Elemento del filtro de air
6. Inspect the air filter element. If damaged, re-
place it.
7. Apply SAE 10W30 motor oil to the air filter el-
ement.NOTE:_ The element should be wet but not dripping. _8. Apply all-purpose grease to the air filter ele-
ment seat.
9. Install the air filter element on the guide.
10. Install the air filter element assembly and
parts removed for access.NOTE:_ The air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the machine is operated in extremely dusty
areas. Each time air filter element maintenance is
performed, check the air inlet to the filter case for
obstructions. Check the air cleaner rubber joint to
the carburetor and manifold fittings for an airtight
seal. Tighten all fittings securely to avoid the pos-
sibility of unfiltered air entering the engine.
U5NF61.book Page 31 Wednesday, June 13, 2001 5:18 PM

8-43

Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reaction
and lead to poor brake performance.


Be careful that water does not enter the master
cylinder when refilling. Water will significantly
lower the boiling point of the fluid and may re-
sult in vapor lock.


Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately.


Have a Yamaha dealer check the cause if the
brake fluid level goes down.
U5NF61.book Page 43 Wednesday, June 13, 2001 5:18 PM

8-63 1. O-rings
1. Joints toriques
1. Juntas tóricas
EBU00805
Lubricating the drive chain
The drive chain must be cleaned and lubricated at
the intervals specified in the periodic maintenance
and lubrication chart, otherwise it will quickly wear
out, especially when riding in dusty or wet areas.
Service the drive chain as follows.CAUTION:_ The drive chain must be lubricated after wash-
ing the ATV or riding in the rain. _1. Clean the drive chain with kerosene and a
small soft brush.CAUTION:_ To prevent damaging the O-rings, do not clean
the drive chain with steam cleaners, high-pres-
sure washers or inappropriate solvents. _2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a
special O-ring chain lubricant.CAUTION:_ Do not use engine oil or any other lubricants
for the drive chain, as they may contain sub-
stances that could damage the O-rings. _
U5NF61.book Page 63 Wednesday, June 13, 2001 5:18 PM

8-64
FBU00805
Lubrification de la chaîne de transmission
Il faut nettoyer et lubrifier la chaîne de transmission aux
fréquences spécifiées dans le tableau des entretiens et
graissages périodiques, sinon elle s’usera rapidement,
surtout lors de la conduite dans les régions humides ou
poussiéreuses. Entretenir la chaîne de transmission com-
me suit.ATTENTION:Il faut lubrifier la chaîne de transmission après avoir
lavé la moto ou après avoir roulé sous la pluie. _1. Laver la chaîne à l’aide de pétrole et d’une petite
brosse à poils doux.ATTENTION:Ne pas nettoyer la chaîne de transmission à la vapeur,
au jet à forte pression ou à l’aide de dissolvants inap-
propriés, car cela endommagerait ses joints toriques. _2. Essuyer la chaîne.
3. Lubrifier abondamment la chaîne avec un lubrifiant
spécial pour chaîne à joints toriques.ATTENTION:Ne pas utiliser de l’huile moteur ni tout autre lubri-
fiant, car ceux-ci pourraient contenir des additifs qui
vont endommager les joints toriques de la chaîne de
transmission. _
SBU00805
Lubricación de la cadena de transmisión
La cadena de transmisión debe limpiarse y lubricar-
se a los intervalos especificados para el manteni-
miento periódico y en la gráfica de lubricación, de lo
contrario se desgastaría con rapidez. especialmente
cuando se circula por zonas polvorientas o mojadas.
Realice el servicio de la cadena de transmisión de la
forma siguiente.AT E N C I O N :_ La cadena de transmisión debe lubricarse des-
pués de haber lavado el ATV o de haber circula-
do bajo la lluvia. _1. Limpie la cadena de transmisión con querose-
no y un cepillo blando pequeño.AT E N C I O N :_ Para evitar daños en las juntas tóricas, no limpie
la cadena de transmisión con limpiadores al va-
por, lavadores de alta presión ni solventes inade-
cuados. _2. Frote la cadena de transmisión para secarla.
3. Lubrique bien la cadena de transmisión con lubri-
cante especial para cadenas con juntas tóricas.AT E N C I O N :_ No emplee aceite de motor ni ningún otro lubri-
cante para la cadena de transmisión, porque es
posible que contengan substancias que pueden
dañar las juntas tóricas. _
U5NF61.book Page 64 Wednesday, June 13, 2001 5:18 PM

8-65
EBU00570
Cable inspection and lubrication
WARNING
Inspect cables frequently and replace if dam-
aged. Corrosion can result when the outer cov-
ering of control cables becomes damaged.
Cables can also become frayed or kinked. Op-
eration of controls could be restricted, which
could cause an accident or injury.Lubricate the inner cables and the cable ends. If
the cables do not operate smoothly, ask a Yamaha
dealer to replace them.
EBU00737
Brake and shift pedal/brake and clutch lever lu-
brication
Lubricate the pivoting parts of each lever and pedal.Recommended lubricant:
Engine oil
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
U5NF61.book Page 65 Wednesday, June 13, 2001 5:18 PM

8-77
WARNING
Battery electrolyte is poisonous and danger-
ous, causing severe burns, etc. It contains sul-
furic acid. Avoid contact with skin, eyes or
clothing.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg
or vegetable oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get
prompt medical attention. Batteries produce
explosive gases. Keep sparks, flame, ciga-
rettes or other sources of ignition away. Venti-
late when charging or using in an enclosed
space. Always shield your eyes when working
near batteries. KEEP OUT OF REACH OF CHIL-
DREN.
U5NF61.book Page 77 Wednesday, June 13, 2001 5:18 PM

9-7
EBU00526
B. STORAGE
Long term storage (60 days or more) of your ma-
chine will require some preventive procedures to
guard against deterioration. After thoroughly
cleaning the machine, prepare for storage as fol-
lows:
1. Fill the fuel tank with fresh fuel and add fuel
stabilizer (if available).NOTE:Use of fuel stabilizer eliminates the need to drain
the fuel system. Consult a Yamaha dealer if the
fuel system is to be drained instead.2. Remove the spark plug, pour about one ta-
blespoon of SAE 10W30 or 20W40 motor oil
in the spark plug hole and reinstall the spark
plug. Ground the spark plug wire and turn the
engine over several times to coat the cylinder
wall with oil.
3. Clean the drive chain thoroughly and lubri-
cate it. (See page 8-63.)
4. Lubricate all control cables.
U5NF61.book Page 7 Wednesday, June 13, 2001 5:18 PM

9-9
5. Block up the frame to raise all wheels off the
ground.
6. Tie a plastic bag over the exhaust pipe outlet
to prevent moisture from entering.
7. If storing in a humid or salt-air atmosphere,
coat all exposed metal surfaces with a light
film of oil. Do not apply oil to any rubber parts
or the seat cover.
8. Remove the battery and charge it. Store it in
a dry place and recharge it once a month. Do
not store the battery in an excessively warm
or cold place (less than 0°C or more than
30°C).NOTE:Make any necessary repairs before storing the
machine.
U5NF61.book Page 9 Wednesday, June 13, 2001 5:18 PM