2015 YAMAHA GRIZZLY 550 engine

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EBU27262StorageShort-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.
[ECB00722]
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. Alterna-
tively, turn the wheels a little every month in
order to prevent the tires from becoming de-
graded 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)U2LB61E0.book Page 2 Friday, February 21, 2014 3:03 PM

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EBU25962
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:Curb weight:
294.0 kg (648 lb)Noise and vibration level:Noise level (77/311/EEC):YFM550DF 79.0 dB(A)@2950 r/min (EUR)(FRA)(GBR)
YFM550PF 79.0 dB(A)@2950 r/min (EUR)(FRA)(GBR)
YFM550PHF 79.0 dB(A)@2950 r/min
Vibration on seat (EN1032, ISO5008): YFM550DF Will not exceed 0.5 m/s² (EUR)(FRA)(GBR)
YFM550PF Will not exceed 0.5 m/s² (EUR)(FRA)(GBR)
YFM550PHF Will not exceed 0.5 m/s² Vibration on handle (EN1032, ISO5008):
YFM550DF Will not exceed 2.5 m/s² (EUR)(FRA)(GBR)
YFM550PF Will not exceed 2.5 m/s² (EUR)(FRA)(GBR)
YFM550PHF Will not exceed 2.5 m/s²
Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Single cylinder
Displacement: 558 cm³
Bore × stroke:
92.0 × 84.0 mm (3.62 × 3.31 in)
Compression ratio: 9.3 : 1
Starting system: Electric starter
Lubrication system:
Wet sumpEngine oil:Recommended brand:YAMALUBE
U2LB61E0.book Page 1 Friday, February 21, 2014 3:03 PM

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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: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:
ID mark:28P7 10Spark plug (s):Manufacturer/model:NGK/LMAR6A-9
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:Wet, centrifugal automatic
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
U2LB61E0.book Page 2 Friday, February 21, 2014 3:03 PM

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Coolant temperature warning light:LED
EPS warning light: YFM550PF LED
YFM550PHF LED
Park indicator light: LED
On-Command four-wheel-drive/differential gear lock
indicator: LCD
Engine trouble warning light:
LED
High-range indicator light: LED
Low-range indicator light: LED
Differential gear lock indicator light:
LEDFuses:Main fuse:40.0 A
Fuel injection system fuse:
15.0 A
EPS fuse: YFM550PF 40.0 A
YFM550PHF 40.0 A
Headlight fuse: 10.0 A
Signaling system fuse: 5.0 A
Ignition fuse:
10.0 A Auxiliary DC jack fuse:
10.0 A
Four-wheel-drive motor fuse: 10.0 A
Radiator fan motor fuse:
20.0 A
EBU30402For Europe only
The figures quoted are emission levels and are not
necessarily safe working levels. Whilst there is a
correlation between the emission and exposure
levels, this cannot be used reliably to determine
whether or not further precautions are required.
Factors that influence the actual level of exposure
of work-force include the characteristics of the
work room, the other sources of noise, etc. i.e. the
number of machines and other adjacent process-
es, and the length of time for which an operator is
exposed to the noise. Also the permissible expo-
sure level can vary from country. This information,
however, will enable the user of the machine to
make a better evaluation of the hazard and risk.
U2LB61E0.book Page 5 Friday, February 21, 2014 3:03 PM

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INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-23
Air filter element, cleaning ........................................... 8-39
Axle boots .................................................................... 8-52BBattery ......................................................................... 8-55
Brake fluid, changing ................................................... 8-49
Brake fluid level, checking ........................................... 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 .......................................................................... 8-46
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, 8-31
Coolant temperature warning light ................................ 4-3DDifferential gear oil ................................................5-3, 8-29
Drive select lever ......................................................... 4-15
Drive select lever and driving in reverse ........................ 6-2Drive select lever safety system cable, adjusting ........ 8-46
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-22
Engine stop switch ........................................................ 4-8
Engine trouble warning light .......................................... 4-3
EPS warning light (for EPS model) ................................ 4-4FFinal gear oil ......................................................... 5-3, 8-26
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 ........................................... 8-63
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 ................................... 5-7LLabel locations ............................................................... 1-1
Light switch ................................................................... 4-8
Low-range indicator light ............................................... 4-2
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MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................8-5
Maintenance chart, emission control system ................ 8-3
Model label ................................................................... 11-1
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 .............................................. 8-19
Rear knuckle pivots, lubricating ................................... 8-55
Reverse indicator light ................................................... 4-2
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-18
Shock absorber assemblies, adjusting the front and rear ............................................................................. 4-21
Spark arrester, cleaning ............................................... 8-42
Spark plug, checking ...................................................8-20 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 lever ........................................................ 4-13, 5-4
Throttle lever free play, adjusting ................................. 8-45
Tires ............................................................................... 5-4
Troubleshooting ........................................................... 8-66
Troubleshooting charts ................................................ 8-67VValve clearance ............................................................ 8-46
V-belt case drain plug .................................................. 8-44
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-54
Wheel, installing ........................................................... 8-65
Wheel, removing .......................................................... 8-64
U2LB61E0.book Page 2 Friday, February 21, 2014 3:03 PM