2011 YAMAHA GRIZZLY 550 radiator

Parking ....................................................... 6-5
Parking on a slope ..................................... 6-5
Accessories and loading ............................ 6-6
RIDING YOUR ATV ...................................... 7-1
GETTING TO KNOW YOUR ATV............... 7-2
RIDE WITH CARE AND GOOD
JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............. 7-9
TURNING YOUR ATV .............................. 7-12
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL.................................. 7-16
CROSSING A SLOPE............................... 7-17
CROSSING THROUGH SHALLOW
WATER ................................................... 7-18
RIDING OVER ROUGH TERRAIN ........... 7-21
SLIDING AND SKIDDING ......................... 7-21
WHAT TO DO IF... .................................... 7-22
WHAT TO DO... ........................................ 7-23
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-2
Periodic maintenance chart for
the emission control system ..................... 8-3
General maintenance and lubrication
chart ......................................................... 8-5Removing and installing panels ................8-10
Removing the radiator grills ......................8-21
Checking the spark plug ...........................8-22
Engine oil and oil filter cartridge ................8-24
Final gear oil .............................................8-28
Differential gear oil ....................................8-30
Coolant .....................................................8-33
Cleaning the air filter element ...................8-38
Cleaning the spark arrester ......................8-42
V-belt case drain plug ...............................8-44
Adjusting the throttle cable free play .........8-44
Valve clearance ........................................8-45
Adjusting the drive select lever safety
system cable ...........................................8-45
Brakes .......................................................8-45
Checking the front and rear brake pads ...8-46
Checking the rear brake hose
protectors ................................................8-47
Checking the brake fluid level ...................8-47
Changing the brake fluid ...........................8-49
Checking the front and rear brake lever
free play ..................................................8-49
Adjusting the brake pedal free play ..........8-50
Axle boots .................................................8-52
Checking and lubricating the cables .........8-52
Checking and lubricating the front and
rear brake levers .....................................8-53
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3-1
3
EBU17680
DESCRIPTION
EBU17690Left view
EBU17700Right view
1. Radiator cap
2. Battery
3. Fuses
4. Air filter case
5. Spark arrester
6. Engine oil dipstick
7. Oil filter cartridge
8. Coolant reservoir
5
1. Rear shock absorber assembly spring preload adjusting
ring
2. Rear storage compartment and tool kit
3. Fuel tank cap cover
4. Front shock absorber assembly spring preload adjusting
ring
5. Spark plug
6. Brake pedal
7. V-belt case drain plug
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4-3
4
EBU28664Coolant temperature warning light“”
This warning light comes on when the engine over-
heats. When this occurs during operation, stop the
engine as soon as it is safe to do so and allow it to
cool down for about 10 minutes.
The electrical circuit of the warning light can be
checked by turning the key to “ON”. The warning
light should come on for a few seconds, and then
go off.
If the warning light does not come on initially when
the key is turned to “ON”, or if the warning light re-
mains on, have a Yamaha dealer check the electri-
cal circuit.NOTICEECB00891
The engine may overheat if the ATV is over-
loaded. In this case, reduce the load to spec-
ification.
The engine may also overheat if mud or dirt
has accumulated on the radiator (i.e., after
riding in wet terrain). In this case, see page
8-21 for an explanation on how to access the
radiator.

Start the engine after making sure that the
warning light is out. Continuous use while
the warning light is on may cause damage to
the engine.EBU27284Engine trouble warning light“”
This warning light comes on or flashes when an
electrical circuit monitoring the engine is not work-
ing correctly. When this occurs, have a Yamaha
dealer check the self-diagnosis system. (See page
4-7 for an explanation of the self-diagnosis device.)
The electrical circuit of the warning light can be
checked by turning the key to “ON”. The warning
light should come on for a few seconds, and then
go off.
If the warning light does not come on initially when
the key is turned to “ON”, or if the warning light re-
mains on, have a Yamaha dealer check the electri-
cal circuit.EBU29061Electric Power Steering warning light “EPS”
(for EPS model)
This warning light comes on when the key is turned
to “ON”, and then goes off once the engine is start-
ed. If the warning light remains on or comes on af-
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8-21
8 2. Install the rear carrier by installing the bolts
and tightening them to the specified torques.
3. Install the seat.
EBU28671Removing the radiator grills The radiator grills can be removed to access the
radiator for cleaning.
To remove a radiator grill
Remove the quick fastener, pull the radiator grill
outward at the top, and then pull it upward.
To install a radiator grill
Place the radiator grill in its original position, and
then install the quick fastener. Tightening torques:
Carrier bolt (upper):
53 Nm (5.3 m·kgf, 38 ft·lbf)
Carrier bolt (lower):
53 Nm (5.3 m·kgf, 38 ft·lbf)
Carrier bolt (under the fenders):
7 Nm (0.7 m·kgf, 5.1 ft·lbf)1. Radiator grill
2. Quick fastener
21
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8-34
8protected against frost and corrosion. If
water has been added to the coolant, have
a Yamaha dealer check the antifreeze con-
tent of the coolant as soon as possible,
otherwise the effectiveness of the coolant
will be reduced.
[ECB01011]
TIP
The radiator fan is automatically switched on or
off according to the coolant temperature in the
radiator.
If the engine overheats, see page 8-66 for fur-
ther instructions.EBU27764To change the coolant
WARNING
EWB01890Wait 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 place a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap.1. Place the ATV on a level surface.
2. Remove panels D and F. (See page 8-10.)
3. Place a container under the engine, and then
remove the coolant drain bolt and its gasket.
(Use a trough or a similar object as shown to
prevent coolant from spilling on the engine
guard.)
1. Coolant reservoir cap
2. Maximum level mark
3. Minimum level markCoolant reservoir capacity (up to the maxi-
mum level mark):
0.24 L (0.25 US qt, 0.21 Imp.qt)
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8-35
8
4. Remove panel B. (See page 8-10.)5. Remove the radiator cap.
6. Remove the coolant reservoir cap.
7. Disconnect the hose on the coolant reservoir
side, and then drain the coolant from the cool-
ant reservoir.
1. Coolant drain bolt
2. Gasket
1. Trough
12
1. Radiator cap
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8-36
88. After draining the coolant, thoroughly flush the
cooling system with clean tap water.
9. Install the coolant drain bolt and its new gas-
ket, and then tighten the bolt to the specified
torque.
10. Connect the coolant reservoir hose.
11. Pour the recommended coolant into the radia-
tor until it is full.12. Pour the recommended coolant into the reser-
voir to the maximum level mark, and then in-
stall the reservoir cap. NOTICE: Mix
antifreeze with distilled water only. Howev-
er, if distilled water is not available, soft
water may be used for refilling. Do not use
hard water or salt water since they are
harmful to the engine.
[ECB00991]
13. Loosen the water pump air bleed bolt, without
removing it, to allow all of the air to escape
from the air bleed bolt hole.
1. Coolant reservoir hoseTightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol antifreeze con-
taining corrosion inhibitors for aluminum en-
gines
Coolant quantity:
Radiator capacity (including all routes):
1.99 L (2.10 US qt, 1.75 Imp.qt)
Coolant reservoir capacity (up to the maxi-
mum level mark):
0.24 L (0.25 US qt, 0.21 Imp.qt)
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8-38
818. When coolant begins to flow out of the bolt
hole, tighten the cylinder head air bleed bolt to
the specified torque.
19. Start the engine and let it idle for ten minutes.
20. Rev the engine five times.
21. Pour the recommended coolant into the radia-
tor until it is full.22. Stop the engine and allow it to cool. If the cool-
ant level has dropped after the engine has
cooled, add sufficient coolant until it reaches
the top of the radiator, and then install the ra-
diator cap.
23. Start the engine, and then check for coolant
leakage.
TIPIf any leakage is found, have a Yamaha dealer
check the cooling system.24. Install the V-belt cooling duct, and then tighten
the clamp screw.
25. Install the panels.EBU27805Cleaning the air filter element The air filter element should be cleaned at the in-
tervals specified in the periodic maintenance and
lubrication chart. Clean or, if necessary, replace
the air filter element more frequently if you are
riding in unusually wet or dusty areas.TIPThere are two check hoses at the bottom of the air
filter case, which are located behind panels D and
E. (See page 8-10 for an explanation on removing
1. Cylinder head air bleed boltTightening torque:
Cylinder head air bleed bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
U28P62E0.book Page 38 Thursday, March 11, 2010 3:25 PM