2004 YAMAHA GRIZZLY 660 oil level

8-35 1. Maximum level mark 2. Minimum level mark
1. Repère de niveau maximum 2. Repère de niveau minimum
1. Marca de nivel máximo 2. Marca de nivel mínimo
6. Insert the dipstick in the oil 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. _7. 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.
8. Insert the dipstick into the oil filler hole, and
then tighten the oil filler cap.
9. Install the panel.
EE.book Page 35 Tuesday, April 1, 2003 12:23 PM

8-45
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 spec-
ified. In addition, do not use oils labeled
“ENERGY CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_12. Start the engine and warm it up for several
minutes. While warming up, check for oil
leakage. If oil leakage is found, turn the en-
gine off immediately and check for the cause.
13. Turn the engine off, and then check the oil
level and correct it if necessary.
14. Install panel F.
EE.book Page 45 Tuesday, April 1, 2003 12:23 PM

8-47 1. Final gear oil drain bolt
1. Boulon de vidange de l’huile de couple conique arrière
1. Perno de drenaje de aceite de la transmisión final
EBU00880
Final gear oil
The final gear case must be checked for oil leak-
age before each ride. If any leakage is found, have
a Yamaha dealer check and repair the ATV.
Final gear oil replacement
1. Place the machine on a level place.
2. Place a container under the final gear case to
collect the used oil.
3. Remove the oil filler bolt and the drain bolt to
drain the oil.
4. Install the drain bolt and tighten it to the spec-
ified torque.
Tightening torque:
Drain bolt (final gear case):
23 Nm (2.3 m·kgf)
E-8.fm Page 47 Friday, April 4, 2003 3:02 PM

8-51 1. Differential gear oil
2. Differential gear case oil filler bolt
3. Specified level
1. Huile de différentiel
2. Boulon d’orifice de remplissage du carter de différentiel
3. Niveau d’huile spécifié
1. Aceite de engranajes del diferencial
2. Perno de relleno de aceite de la caja del diferencial
3. Nivel especificado
EBU00706
Differential gear oil
Differential gear oil measurement
1. Place the machine on a level place.
2. Remove the oil filler bolt and check the oil lev-
el. It should be up to the brim of the hole. If
the level is low, add sufficient oil to raise it to
the specified level.CAUTION:
Be sure no foreign material enters the differen-
tial gear case. 3. Install the oil filler bolt and tighten it to the
specified torque.
Tightening torque:
Oil filler bolt:
23 Nm (2.3 m·kgf)
EE.book Page 51 Tuesday, April 1, 2003 12:23 PM

8-53 1. Differential gear case oil drain bolt
1. Boulon de vidange de l’huile de différentiel
1. Perno de drenaje de aceite de engranajes del diferencial
Differential gear oil replacement
1. Place the machine on a level place.
2. Place a container under the differential gear
case to catch the oil.
3. Remove the filler bolt and drain bolt to drain
the oil.
4. Install the drain bolt and tighten it to the spec-
ified torque.
Tightening torque:
Drain bolt:
10 Nm (1.0 m·kgf)
EE.book Page 53 Tuesday, April 1, 2003 12:23 PM

8-95
3. Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reac-
tion and lead to poor brake performance.
4. Be careful that water does not enter the mas-
ter cylinder reservoir when refilling. Water will
significantly lower the boiling point of the fluid
and may result in vapor lock.
5. Brake fluid may deteriorate painted surfaces
or plastic parts. Always clean up spilled fluid
immediately.
6. Have a Yamaha dealer check the cause if the
brake fluid level goes down.
EE.book Page 95 Tuesday, April 1, 2003 12:23 PM

10-1
EBU00428
1-SPECIFICATIONS
Model YFM660F
Dimensions:
Overall length 2,085 mm
Overall width 1,150 mm
Overall height 1,210 mm
Seat height 880 mm
Wheelbase 1,275 mm
Minimum ground clearance 275 mm
Minimum turning radius 3,200 mm
Basic weight:
With oil and full fuel tank 290 kg
Noise and vibration level:
Noise level (77/311/EEC) 80 dB (A)
Vibration on seat (EN1032, ISO5008) Not exceed 0.5 m/s
2
Vibration on handlebar (EN1032, ISO5008) 2.8 m/s
2
Engine:
Engine type Liquid-cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 660 cm
3
Bore
× stroke 100
× 84 mm
EE.book Page 1 Tuesday, April 1, 2003 12:23 PM