2005 YAMAHA YFZ450 check oil

8-25 1. Engine oil tank 2. Engine oil tank filler cap
3. Dipstick 4. Maximum level mark
5. Minimum level mark 6. Engine oil filler cap
1. Réservoir d’huile de moteur
2. Bouchon de remplissage de l’huile de moteur
3. Jauge
4. Repère de niveau maximum
5. Repère de niveau minimum
6. Bouchon de remplissage d’huile de moteur
1. Depósito de aceite de motor
2. Tapa de relleno del depósito de aceite de motor
3. Varilla de medición
4. Marca de nivel máximo
5. Marca de nivel mínimo
6. Tapa del filtro de aceite de motor
3. Remove the engine oil tank filler cap, wipe
the dipstick clean with a clean rag, insert it
back into the filler hole (without screwing it
in), and then remove it again to check the oil
level.NOTE:_ The engine oil should be between the minimum
and maximum level marks. _4. If the engine oil is below the minimum level
mark, add sufficient oil of the recommended
type through the engine oil tank filler hole to
raise it to the correct level.NOTE:_ When adding oil, be careful not to overfill the en-
gine oil tank; the oil level rises faster starting from
the half-level-portion on the dipstick. _5. Insert the dipstick into the engine oil tank filler
hole, and then tighten the engine oil tank filler
cap.
U5TG61.book Page 25 Friday, April 2, 2004 11:28 AM

8-29 1. Crankcase engine oil drain bolt
1. Boulon de vidange d’huile du carter
1. Perno de drenaje de aceite de motor del cárter
1. Engine oil tank drain bolt
1. Boulon de vidange du réservoir d’huile
1. Perno de drenaje del depósito aceite de motor
4. Remove the engine oil filler cap and the
crankcase engine oil drain bolt.
5. Remove the engine oil tank filler cap and the
engine oil tank drain bolt.
6. Check the washers for damage, and replace
if necessary.
U5TG61.book Page 29 Friday, April 2, 2004 11:28 AM

8-31 1. Oil filter element cover 2. Bolt (× 3)
1. Couvercle de l’élément du filtre à huile
2. Boulon (× 3)
1. Cubierta del elemento del filtro de aceite
2. Perno (× 3)
1. Oil filter element 2. O-ring (× 4)
1.Élément du filtre à huile 2. Joint torique (× 4)
1. Filtro de aceite 2. Junta tórica (× 4)
NOTE:_ Skip steps 7–10 if the oil filter element is not being
replaced. _7. Remove the oil filter element cover by remov-
ing the bolts, and then remove the oil filter el-
ement.
8. Check the O-rings for damage, and replace
them if necessary.
9. Install a new oil filter element and the O-rings.NOTE:_ Make sure that the O-rings are properly seated. _10. Install the oil filter element cover by installing
the bolts, and then tighten them to the speci-
fied torque.
U5TG61.book Page 31 Friday, April 2, 2004 11:28 AM

8-37
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.
_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 engine guard by installing the bolts,
and then tighten them to the specified torque.
U5TG61.book Page 37 Friday, April 2, 2004 11:28 AM

8-85 1. Brake fluid reservoir cover 2. Bolt (× 2)
1. Cache du réservoir de liquide de frein
2. Boulon (× 2)
1. Cubierta del depósito de líquido de frenos
2. Perno (× 2)
Observe these precautions:

When checking the brake fluid level, make sure
the top of the brake fluid reservoir is level.


Use only the designated quality brake fluid, oth-
erwise, the rubber seals may deteriorate, caus-
ing leakage and poor brake performance.


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 brake
fluid reservoir when refilling. Water will signifi-
cantly lower the boiling point of the fluid and
may result 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. Recommended brake fluid: DOT 4
U5TG61.book Page 85 Friday, April 2, 2004 11:28 AM