2004 YAMAHA GRIZZLY 660 oil

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

8-97
EBU01186
Brake fluid replacement
Complete fluid replacement should be done only
by trained Yamaha service personnel. Have a
Yamaha dealer replace the following components
during periodic maintenance or when they are
damaged or leaking.

Replace the oil seals every two years.


Replace the brake hoses every four years.
EE.book Page 97 Tuesday, April 1, 2003 12:23 PM

8-107
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.
Recommended lubricant:
Engine oil
EE.book Page 107 Tuesday, April 1, 2003 12:23 PM

8-119
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.


lNTERNAL: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg or vegetable oil. Call a physi-
cian immediately.


EYES: Flush with water for 15 minutes
and get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of
ignition away. Ventilate when charging or us-
ing in an enclosed space. Always shield your
eyes when working near batteries.
KEEP OUT OF REACH OF CHILDREN.
EE.book Page 119 Tuesday, April 1, 2003 12:23 PM

9-7
EBU00427
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. Lubricate all control cables.
4. Block up the frame to raise all wheels off the
ground.
EE.book Page 7 Tuesday, April 1, 2003 12:23 PM

9-9
5. Tie a plastic bag over the exhaust pipe outlet
to prevent moisture from entering.
6. 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.
7. 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.
EE.book Page 9 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

10-2
10
Compression ratio 9.1 :1
Starting system Electric and recoil starter
Lubrication system Wet sump
Engine oil:
Type
Recommended engine oil classification API Service SE, SF, SG type or higherModel YFM660F
-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.
EE.book Page 2 Tuesday, April 1, 2003 12:23 PM