2012 YAMAHA GRIZZLY 550 engine

9-1
9
EBU25860
CLEANING AND STORAGE
EBU25881Cleaning Frequent, thorough cleaning of your ATV will not
only enhance its appearance but will improve its
general performance and extend the useful life of
many components.1. Before cleaning the ATV: a. Block off the end of the exhaust pipe toprevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plug and all filler caps are properly installed.
2. If the engine case is excessively greasy, apply degreaser with a paint brush. Do not apply de-
greaser to the wheel axles.
3. Rinse the dirt and degreaser off with a garden hose. Use only enough pressure to do the job.
WARNING! Wet brakes may have reduced
stopping ability, increasing the chance of
an accident. Test the brakes after washing.
Apply the brakes several times at slow
speeds to let friction dry out the linings.
[EWB02311]
NOTICE: Excessive water pressure
may cause water seepage and deteriora- tion of wheel bearings, brakes, transmis-
sion seals and electrical devices. Many
expensive repair bills have resulted from
improper high-pressure detergent applica-
tions such as those available in coin-oper-
ated car washers.
[ECB00711]
4. Once most of the dirt has been hosed off,
wash all surfaces with warm water and mild,
detergent-type soap. An old toothbrush or bot-
tle brush is handy for hard-to-reach places.
5. Rinse the ATV off immediately with clean wa- ter and dry all surfaces with a chamois, clean
towel or soft absorbing cloth.
6. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and glossy.
7. Automotive type wax may be applied to all painted and chrome plated surfaces. Avoid
combination cleaner-waxes. Many contain
abrasives which may mar the paint or protec-
tive finish. When finished cleaning, start the
engine and let it idle for several minutes.
U1HS60E0.book Page 1 Tuesday, April 26, 2011 7:53 PM

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)U1HS60E0.book Page 2 Tuesday, April 26, 2011 7:53 PM

10-1
10
EBU25961
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):YFM5FGPB 79.0 dB(A)@2950 r/min
YFM5FGPHB 79.0 dB(A)@2950 r/min
Vibration on seat (EN1032, ISO5008): YFM5FGPB Will not exceed 0.5 m/s ²
YFM5FGPHB Will not exceed 0.5 m/s ²
Vibration on handlebar (EN1032, ISO5008): YFM5FGPB Will not exceed 2.5 m/s ²
YFM5FGPHB Will not exceed 2.5 m/s ²
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Forward-inclined single cylinder
Displacement:
558 cm ³
Bore × stroke:
92.0 × 84.0 mm (3.62 × 3.31 in)
Compression ratio: 9.30 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
YAMALUBE
U1HS60E0.book Page 1 Tuesday, April 26, 2011 7:53 PM

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:YFM550FAB Unleaded gasoline only
YFM550FADB Unleaded gasoline only
YFM5FGPB Regular unleaded gasoline only
YFM5FGPHB 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
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
U1HS60E0.book Page 2 Tuesday, April 26, 2011 7:53 PM

10-5
10
Tail/brake light:12 V, 5.0/21.0 W × 1
Meter lighting: EL (Electroluminescent)
Neutral indicator light:
LED
Reverse indicator light: LED
Coolant temperature warning light: LED
Engine trouble warning light:
LED
EPS warning light: YFM550FADB LED
YFM5FGPB LED
YFM5FGPHB LED
Park indicator light:
LED
On-Command four-wheel-drive/differential gear lock
indicator:
LCD
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:
YFM550FADB 40.0 A
YFM5FGPB 40.0 A
YFM5FGPHB 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 fuse: 20.0 A
EBU30400For EUR 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-
U1HS60E0.book Page 5 Tuesday, April 26, 2011 7:53 PM

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-23
Air filter element, cleaning ............................................ 8-39
Axle boots .................................................................... 8-52BBattery .......................................................................... 8-56
Brake fluid, changing ................................................... 8-49
Brake fluid level, checking ........................................... 8-48
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 .......................................................................... 8-46
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-53
Carrier, front ................................................................. 4-21
Carrier, rear .................................................................. 4-21
Chassis fasteners .......................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-32
Coolant temperature warning light ................................. 4-3DDifferential gear oil ................................................ 5-3, 8-29Drive select lever ......................................................... 4-15
Drive select lever and driving in reverse ........................ 6-2
Drive 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 ......................................................... 4-7
Engine trouble warning light .......................................... 4-3
EPS warning light (for EPS model) ................................ 4-3FFinal gear oil ......................................................... 5-3, 8-27
Four-wheel-drive/differential gear lock indicator ............ 4-4
Front and rear brake lever free play, checking ............ 8-50
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 .................................... 5-7
U1HS60E0.book Page 1 Tuesday, April 26, 2011 7:53 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 .............................................. 8-20
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 .......................................... 8-55
Starting the engine ......................................................... 6-1
Start switch ..................................................................... 4-8
Steering shaft, lubricating ............................................. 8-56
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 ..................................... 8-55
Wheel, installing ........................................................... 8-65
Wheel, removing .......................................................... 8-64
U1HS60E0.book Page 2 Tuesday, April 26, 2011 7:53 PM