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8-38
85. Clean the mesh with solvent, and then wipe
the solvent off.
6. Wash the sponge material gently, but thor-
oughly, in solvent. WARNING! Always use
parts cleaning solvent to clean the sponge
material. Never use low-flash-point sol-
vents or gasoline to clean the sponge ma-
terial because the engine could catch fire
or explode.
[EWB01941]
7. Squeeze the excess solvent out of the sponge
material and let it dry. NOTICE: Do not twist
the sponge material when squeezing it.
[ECB00441]
8. Check the sponge material and replace it if
damaged.
9. Apply Yamaha foam air filter oil or other qual-
ity foam air filter oil to the sponge material.TIPThe sponge material should be wet but not drip-
ping.10. Install the mesh and the sponge material into
the air filter case. NOTICE: Make sure that
the air filter element is properly seated in
the air filter case. Never operate the engine
with the air filter element removed. This
will allow unfiltered air to enter the engine,
causing rapid engine wear and possible
1. Sponge material
2. Air filter meshU28P61E0.book Page 38 Wednesday, March 18, 2009 9:25 AM
Page 129 of 168
![YAMAHA GRIZZLY 550 2010 Owners Manual 8-39
8 engine damage. Additionally, operation
without the air filter element will affect the
fuel injection system with subsequent
poor performance and possible engine
overheating.
[ECB00761]
11. Ins YAMAHA GRIZZLY 550 2010 Owners Manual 8-39
8 engine damage. Additionally, operation
without the air filter element will affect the
fuel injection system with subsequent
poor performance and possible engine
overheating.
[ECB00761]
11. Ins](/manual-img/51/50420/w960_50420-128.png)
8-39
8 engine damage. Additionally, operation
without the air filter element will affect the
fuel injection system with subsequent
poor performance and possible engine
overheating.
[ECB00761]
11. Insert the projections on the air filter case cov-
er into the holders on the air filter case, and
then install the air filter case cover by hooking
the holders onto the cover.
12. Place the hoses in their original position as
shown.13. Install the panel.
TIPThe air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter element maintenance
is performed, check the air inlet of the air filter case
for obstructions. Check the air filter case rubber
joint to the throttle body and the rubber joint mani-
fold fittings for an air-tight seal. Tighten all fittings
securely to avoid the possibility of unfiltered air en-
tering the engine.1. Hose
1
U28P61E0.book Page 39 Wednesday, March 18, 2009 9:25 AM
Page 159 of 168

10-2
10
Type:
SAE 5W-30, 10W-30, 10W-40, 15W-40, 20W-40 or 20W-
50
Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Engine oil quantity:
Without oil filter cartridge replacement:
2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter cartridge replacement:
2.10 L (2.22 US qt, 1.85 Imp.qt)Final gear oil:Type:
SAE 80 API GL-4 Hypoid gear oil
Quantity:
0.20 L (0.21 US qt, 0.18 Imp.qt)
Differential gear oil:Type:
SAE 80 API GL-4 Hypoid gear oil
Quantity:
0.22 L (0.23 US qt, 0.19 Imp.qt)Cooling system:Coolant reservoir capacity (up to the maximum level mark):
0.24 L (0.25 US qt, 0.21 Imp.qt)
Radiator capacity (including all routes):
1.99 L (2.10 US qt, 1.75 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
YFM550FAPZ Unleaded gasoline only
YFM550FAZ Unleaded gasoline only
YFM5FGPHZ Regular unleaded gasoline only
YFM5FGPZ Regular unleaded gasoline only
YFM5FGZ Regular unleaded gasoline only
Fuel tank capacity:
20.0 L (5.28 US gal, 4.40 Imp.gal)
Fuel reserve amount:
4.5 L (1.19 US gal, 0.99 Imp.gal)Fuel injection:Throttle body:
Type/quantity:
40EIS/1Spark plug (s):Manufacturer/model:
NGK/LMAR6A-9
0 10 30 50 70 90 110 130 ˚F -20 -10 0 10 20 30 40 50 ˚CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
U28P61E0.book Page 2 Wednesday, March 18, 2009 9:25 AM
Page 166 of 168

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-23
Air filter element, cleaning ............................................ 8-36
Axle boots .................................................................... 8-49BBattery .......................................................................... 8-53
Brake fluid, changing .................................................... 8-46
Brake fluid level, checking ............................................ 8-45
Brake hose protectors, checking the rear .................... 8-44
Brake lever, front .......................................................... 4-14
Brake levers, checking and lubricating ......................... 8-50
Brake pads, checking the front and rear ...................... 8-43
Brake pedal and rear brake lever ................................. 4-14
Brake pedal, checking and lubricating ......................... 8-51
Brake pedal free play, adjusting ................................... 8-47
Brakes .......................................................................... 8-43
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-50
Carrier, front ................................................................. 4-21
Carrier, rear .................................................................. 4-21
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-30
Coolant temperature warning light ................................. 4-2DDifferential gear oil ................................................ 5-3, 8-28Drive select lever .......................................................... 4-15
Drive select lever and driving in reverse ........................ 6-2
Drive select lever safety system cable, adjusting ......... 8-43
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-22
Engine stop switch ......................................................... 4-7
Engine trouble warning light ........................................... 4-3
EPS warning light (for EPS model) ................................ 4-3FFinal gear oil .......................................................... 5-3, 8-26
Four-wheel-drive/differential gear lock indicator ............ 4-4
Front and rear brake lever free play, checking ............. 8-46
Fuel ....................................................................... 4-16, 5-3
Fuel tank cap ................................................................ 4-15
Fuses, replacing ........................................................... 8-56HHandlebar switches ........................................................ 4-7
Headlight beam, adjusting ............................................ 8-59
Headlight bulb, replacing .............................................. 8-58
High-range indicator light ............................................... 4-4
Horn switch .................................................................... 4-8IIdentification numbers .................................................. 11-1
Indicator lights and warning lights .................................. 4-2
Instruments, lights and switches .................................... 5-7
U28P61E0.book Page 1 Wednesday, March 18, 2009 9:25 AM