2011 YAMAHA GRIZZLY 550 engine

9-2
9
EBU27261Storage Short-term
Always store your ATV in a cool, dry place and, if
necessary, protect it against dust with a porous
cover. NOTICE: Storing the ATV in a poorly ven-
tilated room or covering it with a tarp while it is
still wet, will allow water and humidity to seep
in and cause rust. To prevent corrosion, avoid
damp cellars, stables (because of the presence
of ammonia) and areas where strong chemi-
cals are stored.
[ECB00721]
Long-term
Before storing your ATV for several months:
1. Follow all the instructions in the “Cleaning”
section of this chapter.
2. Fill up the fuel tank and add fuel stabilizer (if
available) to prevent the fuel from deteriorat-
ing.3. Perform the following steps to protect the cyl-
inder, piston rings, etc. from corrosion.
a. Remove the spark plug cap and spark
plug.
b. Pour a teaspoonful of engine oil into the
spark plug bore.
c. Install the spark plug cap onto the spark
plug, and then place the spark plug on the
cylinder head so that the electrodes are
grounded. (This will limit sparking during
the next step.)
d. Turn the engine over several times with the
starter. (This will coat the cylinder wall with
oil.)
e. Remove the spark plug cap from the spark
plug, and then install the spark plug and
the spark plug cap.
4. Lubricate all control cables and the pivoting
points of all levers and pedals.
5. Check and, if necessary, correct the tire air
pressure, and then block up the ATV so that
all of its wheels are off the ground. Alternative-
ly, turn the wheels a little every month in order
to prevent the tires from becoming degraded
in one spot. Specified amount:
7.5 ml of stabilizer to each liter of fuel (or 1
oz of stabilizer to each gallon of fuel)U28P62E0.book Page 2 Thursday, March 11, 2010 3:25 PM

10-1
10
EBU25960
SPECIFICATIONS
Dimensions:Overall length:
2065 mm (81.3 in)
Overall width:
1180 mm (46.5 in)
Overall height:
1240 mm (48.8 in)
Seat height:
905 mm (35.6 in)
Wheelbase:
1250 mm (49.2 in)
Ground clearance:
275 mm (10.8 in)
Minimum turning radius:
3200 mm (126 in)Weight:With oil and fuel:
294.0 kg (648 lb)Noise and vibration level:Noise level (77/311/EEC):
YFM5FGA 79.0 dB(A)@2950 r/min
YFM5FGPA 79.0 dB(A)@2950 r/min
YFM5FGPHA 79.0 dB(A)@2950 r/min
YFM5FGPSEA 79.0 dB(A)@2950 r/minNoise level 40 CFR Part 205 Subpart D (Acceleration):
YFM5FGA 76.8 dB(A)
YFM5FGPA 76.8 dB(A)
YFM5FGPHA 76.8 dB(A)
YFM5FGPSEA 76.8 dB(A)
Vibration on seat (EN1032, ISO5008):
YFM5FGA Will not exceed 0.5 m/s²
YFM5FGPA Will not exceed 0.5 m/s²
YFM5FGPHA Will not exceed 0.5 m/s²
YFM5FGPSEA Will not exceed 0.5 m/s²
Vibration on handlebar (EN1032, ISO5008):
YFM5FGA Will not exceed 2.5 m/s²
YFM5FGPA Will not exceed 2.5 m/s²
YFM5FGPHA Will not exceed 2.5 m/s²
YFM5FGPSEA Will not exceed 2.5 m/s²
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
558 cm³
Bore × stroke:
92.0 × 84.0 mm (3.62 × 3.31 in)
Compression ratio:
9.30 :1
Starting system:
Electric starter
U28P62E0.book Page 1 Thursday, March 11, 2010 3:25 PM

10-2
10
Lubrication system:
Wet sumpEngine oil:Recommended brand:
YAMALUBE
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:
YFM550FAPA Unleaded gasoline only
YFM5FGA Regular unleaded gasoline only
YFM5FGPA Regular unleaded gasoline only
YFM5FGPHA Regular unleaded gasoline only
YFM5FGPSEA 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)
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
U28P62E0.book Page 2 Thursday, March 11, 2010 3:25 PM

10-5
10
Voltage, capacity:
12 V, 18.0 AhHeadlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 35/35 W × 2
Tail/brake light:
12 V, 5.0/21.0 W × 1
Meter lighting:
EL
Neutral indicator light:
LED
Reverse indicator light:
LED
Coolant temperature warning light:
LED
Engine trouble warning light:
LED
EPS warning light:
YFM550FAPA LED
YFM5FGPA LED
YFM5FGPHA LED
YFM5FGPSEA LED
Park indicator light:
LED
On-Command four-wheel-drive/differential gear lock
indicator:
LCD
High-range indicator light:
LEDLow-range indicator light:
LED
Differential gear lock indicator light:
LED
Fuses:Main fuse:
40.0 A
Fuel injection system fuse:
15.0 A
EPS fuse:
YFM550FAPA 40.0 A
YFM5FGPA 40.0 A
YFM5FGPHA 40.0 A
YFM5FGPSEA 40.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
5.0 A
Ignition fuse:
15.0 A
Auxiliary DC jack fuse:
15.0 A
Four-wheel-drive motor fuse:
15.0 A
Radiator fan fuse:
20.0 A
U28P62E0.book Page 5 Thursday, March 11, 2010 3:25 PM

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-23
Air filter element, cleaning ............................................ 8-38
Axle boots .................................................................... 8-52BBattery .......................................................................... 8-55
Brake fluid, changing .................................................... 8-49
Brake fluid level, checking ............................................ 8-47
Brake hose protectors, checking the rear .................... 8-47
Brake lever, front .......................................................... 4-14
Brake levers, checking and lubricating ......................... 8-53
Brake pads, checking the front and rear ...................... 8-46
Brake pedal and rear brake lever ................................. 4-14
Brake pedal, checking and lubricating ......................... 8-54
Brake pedal free play, adjusting ................................... 8-50
Brakes .......................................................................... 8-45
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-52
Carrier, front ................................................................. 4-21
Carrier, rear .................................................................. 4-21
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-33
Coolant temperature warning light ................................. 4-3DDifferential gear oil ................................................ 5-3, 8-30Drive select lever .......................................................... 4-15
Drive select lever and driving in reverse ........................ 6-2
Drive select lever safety system cable, adjusting ......... 8-45
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-24
Engine stop switch ......................................................... 4-7
Engine trouble warning light ........................................... 4-3
EPS warning light (for EPS model) ................................ 4-3FFinal gear oil .......................................................... 5-3, 8-28
Four-wheel-drive/differential gear lock indicator ............ 4-4
Front and rear brake lever free play, checking ............. 8-49
Fuel ....................................................................... 4-16, 5-3
Fuel tank cap ................................................................ 4-15
Fuses, replacing ........................................................... 8-59HHandlebar switches ........................................................ 4-7
Headlight beam, adjusting ............................................ 8-62
Headlight bulb, replacing .............................................. 8-61
High-range indicator light ............................................... 4-2
Horn switch .................................................................... 4-8IIdentification numbers .................................................. 11-1
Indicator lights and warning lights .................................. 4-2
Instruments, lights and switches .................................... 5-7
U28P62E0.book Page 1 Thursday, March 11, 2010 3:25 PM

LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-8
Low-range indicator light ................................................ 4-2MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2
Multi-function display ..................................................... 4-5NNeutral indicator light ..................................................... 4-2OOn-Command differential gear lock switch .................. 4-10
On-Command four-wheel-drive switch ........................... 4-9
Override switch .............................................................. 4-8
Owner’s manual and tool kit ........................................... 8-2PPanels, removing and installing ................................... 8-10
Park indicator light ......................................................... 4-2
Parking ........................................................................... 6-5
Parking on a slope ......................................................... 6-5
Part locations ................................................................. 3-1RRadiator grills, removing .............................................. 8-21
Rear knuckle pivots, lubricating ................................... 8-55
Reverse indicator light ................................................... 4-2
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-18Shock absorber assemblies,
adjusting the front and rear ........................................ 4-21
Spark arrester, cleaning ............................................... 8-42
Spark plug, checking ................................................... 8-22
Specifications ............................................................... 10-1
Speed limiter ................................................................ 4-13
Stabilizer bushes, checking ......................................... 8-54
Starting the engine ......................................................... 6-1
Start switch .................................................................... 4-8
Steering shaft, lubricating ............................................ 8-55
Storage .......................................................................... 9-2
Storage compartments ................................................ 4-18
TTail/brake light bulb, replacing ..................................... 8-63
Throttle cable free play, adjusting ................................ 8-44
Throttle lever ......................................................... 4-13, 5-4
Tires ............................................................................... 5-4
Troubleshooting ........................................................... 8-65
Troubleshooting charts ................................................ 8-66VValve clearance ........................................................... 8-45
V-belt case drain plug .................................................. 8-44
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-54
Wheel, installing ........................................................... 8-64
Wheel, removing .......................................................... 8-64
U28P62E0.book Page 2 Thursday, March 11, 2010 3:25 PM