2003 YAMAHA GRIZZLY 660 engine

4-55
CAUTION:

Do not use accessories requiring more
than the above maximum capacity. This
may overload the circuit and cause the
fuse to blow.


If accessories are used without the engine
running or with the headlight turned on,
the battery will lose its charge and engine
starting may become difficult.


Do not use an automotive cigarette lighter
or other accessories with a plug that gets
hot because the jack can be damaged.
U5KM60.book Page 55 Thursday, June 21, 2001 2:40 PM

5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
BrakesCheck operation, free play, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.5-7 ~ 5-9,
8-91 ~ 8-105
FuelCheck fuel level.
Fill with fuel if necessary.5-11 ~ 5-13
Engine oilCheck oil level.
Fill with oil if necessary.5-15 ~ 5-17,
8-33 ~ 8-43
Coolant reservoirCheck coolant level.
Fill with coolant if necessary.8-55 ~ 8-65
Final gear oil/
Differential gear oilCheck for leakage.5-19 ~ 5-21,
8-43 ~ 8-53
ThrottleCheck for proper throttle cable operation. 5-23, 8-89
Wheels and tiresCheck tire pressure, wear and damage.5-27 ~ 5-33,
8-113 ~ 8-115
Fittings and FastenersCheck all fittings and fasteners. 5-23
LightsCheck for proper operation. 5-25, 8-127 ~ 133
Axle bootsCheck for damage. 8-67
U5KM60.book Page 1 Thursday, June 21, 2001 2:40 PM

5-11
EBU00909*
Fuel
Make sure there is sufficient gasoline in the tank.CAUTION:_ Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts such as the valves and piston
rings, as well as to the exhaust system. _
Recommended fuel:
For Europe: Regular unleaded gasoline only
with a research octane number of 91 or
higher.
For Australia: Unleaded gasoline only
Fuel tank capacity:
Total:
20 L
Reserve:
3.5 L
U5KM60.book Page 11 Thursday, June 21, 2001 2:40 PM

5-13 1. Fuel level 2. Filler tube
1. Niveau de carburant 2. Tube de remplissage
1. Nivel de combustible 2. Tubo del relleno
NOTE:_ (for Europe only)
If knocking or pinging occurs, use a different brand
of gasoline or higher octane grade._
WARNING
_

Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.


Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up any
spilled fuel immediately.


Do not refuel right after the engine has
been running and is still very hot.


Be sure the fuel tank cap is closed secure-
ly.
_
U5KM60.book Page 13 Thursday, June 21, 2001 2:40 PM

5-15
EBU00947
Engine oil
Make sure the engine oil is at the specified level.
Fill with oil as necessary. (See pages 8-33 ~ 8-43
for details.)
Recommended oil:
Recommended engine oil classification:
API Service SE, SF, SG type or higher
-20˚ -10˚ 0˚
10˚20˚ 30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
U5KM60.book Page 15 Thursday, June 21, 2001 2:40 PM

5-17
CAUTION:_ Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled “ENERGY CONSERVING II”)
contain anti-friction additives which will cause
clutch and/or starter clutch slippage, resulting
in reduced component life and poor engine
performance.
Oil quantity:
Total amount:
2.2 L
Periodic oil change:
1.9 L
With oil filter replacement:
2.0 L
U5KM60.book Page 17 Thursday, June 21, 2001 2:40 PM

5-21
EBU00678
Differential gear oil
Make sure the differential gear oil is at the speci-
fied level. Add oil as necessary. (See pages 8-49 ~
8-53 for details.)
EBU00497*
Coolant
Check the coolant level in the reservoir tank when
the engine is cold. (The coolant level will vary with
engine temperature.) The coolant level is satisfac-
tory if it is between the “FULL” and “LOW” marks
on the tank. If the coolant level is at or below the
“LOW” level, add tap water (soft water) to bring the
level up to “FULL”. Change the coolant every two
years. (See pages 8-55 ~ 8-65 for details.)CAUTION:_ Hard water or salt water is harmful to the en-
gine. You may use distilled water if you can’t
get soft water. _
Recommended oil:
SAE 80 API GL-4 Hypoid gear oil
U5KM60.book Page 21 Thursday, June 21, 2001 2:40 PM

5-23
WARNING
_ Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always put a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap. _
EBU00151
Throttle lever
Check to see that the throttle lever operates cor-
rectly. It must open smoothly and spring back to
idle position when released. Repair as necessary
for proper operation.
EBU00152
Fittings and Fasteners
Always check the tightness of chassis fittings and
fasteners before a ride. Take the machine to a
Yamaha dealer or refer to the Service Manual for
correct tightening torque.Reservoir tank capacity:
0.3 L
U5KM60.book Page 23 Thursday, June 21, 2001 2:40 PM