Page 128 of 444
5-17
EBU10842
Engine oil
Make sure the engine oil is at the specified level.
Add oil as necessary. (See page 8-25.)
cC
8In 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.
8Make sure that no foreign material enters
the crankcase.
Recommended engine oil type and quantity:
See page 10-2.
5TG-9-62 5-6 5/13/05 1:45 PM Page 5-17
Page 284 of 444

8-27
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 recommend-
ed 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
engine 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.
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
5TG-9-62 8 5/13/05 1:48 PM Page 8-27
Page 346 of 444
8-89
Observe these precautions:
8When checking the brake fluid level, make
sure the top of the brake fluid reservoir is
level.
8Use only the designated quality brake fluid,
otherwise, the rubber seals may deteriorate,
causing leakage and poor brake performance.
8Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reac-
tion and lead to poor brake performance.
8Be 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.
8Brake fluid may deteriorate painted surfaces
or plastic parts. Always clean up spilled fluid
immediately.
8Have a Yamaha dealer check the cause if the
brake fluid level goes down.Recommended brake fluid: DOT 4
5TG-9-62 8 5/13/05 1:48 PM Page 8-89
Page 422 of 444
10-1
Model YFZ450V
Dimension:
Overall length 1,840 mm
Overall width 1,170 mm
Overall height 1,090 mm
Seat height 810 mm
Wheel base 1,280 mm
Ground clearance 255 mm
Minimum turning radius: 3,500 mm
Basic weight:
With oil and full fuel tank 169 kg
Engine:
Type Liquid cooled, 4-stroke, DOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 449.0cm
3
Bore ×Stroke 95.0 ×63.4 mm
Compression ratio 11.20 : 1
Starting system Electric starter
Lubrication system Dry sump
EBU04280
SPECIFICATIONS
5TG-9-62 9-11 5/12/05 6:14 PM Page 10-1
Page 423 of 444
10-2
ModelYFZ450V
Engine oil:
Type
Recommended engine oil classification: API Service SE, SF, SG type or higher
cC
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.
Quantity:
Without oil filter element replacement 1.75 L
With oil filter element replacement 1.85 L
–20° 10° 20° 30° 40°
10W30
10W40
20W40
20W5050°C
0° –10°
5W30
15W40
10
5TG-9-62 9-11 5/12/05 6:14 PM Page 10-2
Page 426 of 444
10-5
Model YFZ450V
Brake:
Front brake type Dual disc brake
operation Right hand operation
Rear brake type Single disc brake
operation Right foot operation
Suspension:
Front suspension Double wishbone
Rear suspension Swingarm (link suspension)
Shock absorber:
Front shock absorber Coil spring/Gas-Oil damper
Rear shock absorber Coil spring/Gas-Oil damper
Wheel travel:
Front wheel travel 230.0 mm
Rear wheel travel 270.0 mm
Electrical:
Ignition system D.C. C.D.I.
Generator system A.C. magneto
Battery type/voltage capacity GT7B-4/12V, 6.5 Ah
Headlight type: Krypton bulb
5TG-9-62 9-11 5/12/05 6:14 PM Page 10-5