2012 YAMAHA GRIZZLY 550 page 10-1

Checking and lubricating the brake pedal ...................................................... 8-54
Checking the wheel hub bearings ............ 8-55
Checking the stabilizer bushes ................ 8-55
Lubricating the rear knuckle pivots ........... 8-55
Lubricating the steering shaft ................... 8-56
Battery ...................................................... 8-56
Replacing a fuse ...................................... 8-59
Replacing a headlight bulb ....................... 8-61
Adjusting a headlight beam ...................... 8-63
Replacing the tail/brake light bulb ............ 8-63
Removing a wheel .................................... 8-64
Installing a wheel ...................................... 8-65
Troubleshooting ....................................... 8-66
Troubleshooting charts ............................. 8-67
CLEANING AND STORAGE .......................... 9-1 Cleaning ..................................................... 9-1
Storage ....................................................... 9-2
SPECIFICATIONS ...................................... 10-1
CONSUMER INFORMATION ...................... 11-1 Identification numbers .............................. 11-1
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5-6
5
Tire information
This ATV is equipped with tubeless tires with
valves.
WARNING
EWB02551Use of improper tires on this ATV may cause
loss of control, increasing your risk of an acci-
dent.After extensive tests, only the tires listed below
have been approved for this model by Yamaha
Motor Manufacturing Corporation of America.1. Tire wear limit
Fro nt: Manufacturer/model:YFM550FAB CHENG SHIN/C828
YFM550FADB CHENG SHIN/C828
YFM5FGPB MAXXIS/MU19
YFM5FGPHB MAXXIS/MU19
Size: AT25 x 8-12
Type: Tu b e l e s s
Rear: Manufacturer/model:YFM550FAB CHENG SHIN/C828
YFM550FADB CHENG SHIN/C828
YFM5FGPB MAXXIS/MU20
YFM5FGPHB MAXXIS/MU20
Size: AT25 x 10-12
Type: Tu b e l e s s
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8-26
8
9. Install panel F.
10. Install the engine oil drain bolt and its new gasket, and then tighten the bolt to the speci-
fied torque. 11. Refill with the specified amount of the recom-
mended engine oil, and then insert the dip-
stick completely into the oil filler hole.
TIPBe sure to wipe off spilled oil on any parts after the
engine and exhaust system have cooled down.NOTICEECB00300
In order to prevent clutch slippage (since the
engine oil also lubricates the clutch), do not
mix any chemical additives. Do not use oils
with a diesel specification of “CD ” or oils of
a higher quality than specified. In addition,
do not use oils labeled “ENERGY CONSERV-
ING II ” or higher.
1. Torque wrenchTightening torque:
Oil filter cartridge:17 Nm (1.7 m ·kgf, 12 ft ·lbf)
Tightening torque: Engine oil drain bolt:30 Nm (3.0 m ·kgf, 22 ft ·lbf)
Recommended oil:
See page 10-1.
Oil quantity: Without oil filter cartridge replacement:2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter car tridge replacement: 2.10 L (2.22 US qt, 1.85 Imp.qt)
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8-29
85. Refill with the recommended final gear oil to
the brim of the check hole as shown. NOTICE:
Be sure no foreign material enters the final
gear case.
[ECB00421]
6. Check the oil level check bolt gasket and the oil filler bolt gasket for damage, and replace
them if necessary.
7. Install the oil level check bolt, the oil filler bolt and their gasket, and then tighten the bolts to
the specified torques.
8. Check the final gear case for oil leakage. If oil is leaking, check for the cause.EBU23426Differential gear oil The differential gear case must be checked for oil
leakage before each ride. If any leakage is found,
have a Yamaha dealer check and repair the ATV.
In addition, the differential gear oil level must be
checked and the oil changed as follows at the in-
tervals specified in the periodic maintenance and
lubrication chart.
Tightening torque:
Final gear oil drain bolt:23 Nm (2.3 m ·kgf, 17 ft· lbf)
1. Final gear oil
2. Gasket
3. Final gear oil level check bolt
4. Correct oil levelRecommended final gear oil:
See page 10-1.
1
243
Tightening torques:Final gear oil level check bolt:10 Nm (1.0 m ·kgf, 7.2 ft ·lbf)
Final gear oil filler bolt: 23 Nm (2.3 m ·kgf, 17 ft· lbf)
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8-31
84. Install the drain bolt and its new gasket, and
then tighten the bolt to the specified torque.
5. Refill with the recommended differential gear oil to the brim of the filler hole as shown.
NOTICE: Be sure no foreign material en-
ters the differential gear case.
[ECB00411]
6. Check the oil filler bolt gasket for damage, and replace it if necessary.
7. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified torque.
1. Differential gear oil drain bolt
2. GasketTightening torque:Differential gear oil drain bolt:9.8 Nm (0.98 m ·kgf, 7.1 ft· lbf)
12
1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil levelRecommended differential gear oil:
See page 10-1.
Tightening torque: Differential gear oil filler bolt:23 Nm (2.3 m ·kgf, 17 ft· lbf)
1
2
3
4
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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
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10-3
10
Spark plug gap:0.8 –0.9 mm (0.031 –0.035 in)Clutch:Clutch type:
Wet, centrifugal automaticTransmission:Primary reduction system:V-belt
Secondary reduction system:
Shaft drive
Secondary reduction ratio: 41/21 × 24/18 × 33/9 (9.544)
Transmission type: V-belt automatic
Operation:
Left hand operation
Reverse gear: 23/14 × 28/23 (2.000)
Low range: 31/16 (1.938)
High range:
31/27 (1.148)Chassis:Frame type:Steel tube frame
Caster angle:
5.0 °
Trail: 26.0 mm (1.02 in)
Front tire:Type:Tubeless
Size:
AT25 x 8-12
Manufacturer/model: YFM550FAB CHENG SHIN/C828
YFM550FADB CHENG SHIN/C828
YFM5FGPB MAXXIS/MU19
YFM5FGPHB MAXXIS/MU19Rear tire:Type:
Tubeless
Size: AT25 x 10-12
Manufacturer/model: YFM550FAB CHENG SHIN/C828
YFM550FADB CHENG SHIN/C828
YFM5FGPB MAXXIS/MU20
YFM5FGPHB MAXXIS/MU20Loading:Maximum loading limit:220.0 kg (485 lb)
(Total weight of rider, cargo, accessories, and tongue)Tire air pressure (measured on cold tires):Recommended:Front:35.0 kPa (0.350 kgf/cm ², 5.0 psi)
Rear: 30.0 kPa (0.300 kgf/cm ², 4.4 psi)
U1HS60E0.book Page 3 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