2015 YAMAHA GRIZZLY 550 oil change

2-5
2
ungrounded or broken wiring. Visually check
for broken wiring and leaking fuel. Leaking
fuel can be confirmed by the odor of gasoline.
4. Once immediate safety hazards are con- firmed not to exist, you may remove your hel-
met to more closely inspect your vehicle.
Check for external signs of wear, broken
parts, fluid leaks, cracks in the frame, sus-
pension damage, wheel damage, and so on.
Fuel, oil, and coolant usually give off a notice-
able odor.
5. If your vehicle will not restart or if it is unsafe to ride, then turn off all vehicle systems (en-
gine stop switch, main switch, and fuel cock),
and then signal or go for help.
Aftermarket Parts, Accessories, and Modifica-
tions
While you may find aftermarket products similar in
design and quality to genuine Yamaha accesso-
ries, recognize that some aftermarket accessories
or modifications are not suitable because of po-
tential safety hazards to you or others. Installing
aftermarket products or having other modifica-
tions performed to your vehicle that change any of
the vehicle’s design or operation characteristics
can put you and others at greater risk of serious injury or death. You are responsible for injuries re-
lated to changes in the vehicle. Keep the following
guidelines in mind, as well as those provided un-
der “Loading” when mounting accessories.

Never install accessories that would impair the
performance of your ATV. Carefully inspect the
accessory before using it to make sure that it
does not in any way reduce ground clearance,
limit suspension travel, steering travel or control
operation.
 Accessories fitted to the ATV can create insta-
bility due to improper weight distribution.
 Bulky or large accessories may seriously affect
the stability of the ATV.
 Certain accessories can displace the operator
from his or her normal riding position. This im-
proper position limits the freedom of movement
of the operator and may limit control ability,
therefore, such accessories are not recom-
mended.
 Use caution when adding electrical accesso-
ries. If electrical accessories exceed the capac-
ity of the ATV’s electrical system, an electric
failure could result, which could cause a dan-
gerous loss of lights or engine power.
U2LB61E0.book Page 5 Friday, February 21, 2014 3:03 PM

8-7
8
11*Shock absorber as-
semblies • Check operation and correct if necessary.
• Check for oil leakage and replace if necessary.
√√√
12 *Stabilizer bushes • Check for cracks or other damage, and replace if
necessary. √√√
13 *Rear knuckle pivots • Lubricate with lithium-soap-based grease. √√√
14 *Steering shaft • Lubricate with lithium-soap-based grease. √√√
15 *Steering system • Check operation and repair or replace if dam-
aged.
• Check toe-in and adjust if necessary. √√√√√
16 *Engine mount • Check for cracks or other damage, and replace if
necessary. √√√
17 *Axle boots • Check for cracks or other damage, and replace if
necessary. √√√√√
18 Engine oil • Change.
• Check ATV for oil leakage, and correct if neces-
sary. √ √√√
19 Engine oil filter car-
tridge • Replace.
√√√
20 Differential gear oil • Change.
• Check ATV for oil leakage, and correct if neces-
sary. √√
NO.
ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes first month136612
km (mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U2LB61E0.book Page 7 Friday, February 21, 2014 3:03 PM

8-8
8
21 Final gear oil• Change.
• Check ATV for oil leakage, and correct if neces-
sary. √√
22 Cooling system • Check coolant level and ATV for coolant leakage,
and correct if necessary. √√√√√
• Replace coolant. Every 2 years
23 *Moving parts and
cables • Lubricate.
√√√√
24 *Drive select lever
safety system cable • Check operation and adjust or replace if neces-
sary. √√√
25 *Throttle lever • Check operation.
• Check throttle lever free play, and adjust if neces-
sary.
• Lubricate cable and lever housing. √√√√√
26 *Front and rear
brake switches • Check operation and correct if necessary.
√√√√√
27 *Lights and switches • Check operation and correct if necessary.
• Adjust headlight beams.
√√√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev-
er comes first month136612
km (mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U2LB61E0.book Page 8 Friday, February 21, 2014 3:03 PM

8-22
8
TIPIf a torque wrench is not available when installing
the spark plug, a good estimate of the correct
torque is 1/4–1/2 turn past finger tight. However,
the spark plug should be tightened to the speci-
fied torque as soon as possible. 3. Install the spark plug cap.EBU27468Engine oil and oil filter cartridgeThe engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter cartridge replaced at the intervals
specified in the periodic maintenance and lubrica-
tion chart.
To check the engine oil level1. Place the ATV on a level surface.
2. Check the engine oil level on a cold engine.
TIPIf the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least 10 minutes until the oil set-
tles for an accurate reading. 3. Remove the access cover by turning it coun- terclockwise.
4. Remove the engine oil dipstick, and then wipe it off with a clean rag.
Tightening torque:
Spark plug:13 Nm (1.3 m·kgf, 9.4 ft·lbf)1. Access cover
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8-24
8To change the engine oil (with or without oil fil-
ter cartridge replacement)
1. Place the ATV on a level surface.
2. Remove the access cover by turning it coun- terclockwise.
3. Place an oil pan under the engine to collect the used oil.
4. Remove the dipstick, and then remove the engine oil drain bolt and its gasket to drain the
oil from the crankcase.
TIPSkip steps 5–9 if the oil filter cartridge is not being
replaced. 5. Remove panel F. (See page 8-10.)
6. Remove the oil filter cartridge with an oil filterwrench.TIPAn oil filter wrench is available at a nearby Yamaha
dealer. 7. Apply a thin coat of engine oil to the O-ring ofthe new oil filter cartridge.
1. Engine oil drain bolt
2. Gasket
12
1. Oil filter cartridge
2. Oil filter wrench
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8-26
811. 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. NOTICEECB00301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. 
Make sure that no foreign material enters the
crankcase.
12. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
13. Turn the engine off, wait at least ten minutes, and then check the oil level and correct it if
necessary.
14. Install the access cover by turning it clock- wise.EBU27307Final gear oilThe final gear case must be checked for oil leak-
age before each ride. If any leakage is found, have
a Yamaha dealer check and repair the ATV. In ad-
dition, the final gear oil level must be checked and
the oil changed as follows at the intervals speci-
fied in the periodic maintenance and lubrication
chart.
To check the final gear oil level1. Place the ATV on a level surface.
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 cartridge replacement: 2.10 L (2.22 US qt, 1.85 Imp.qt)
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8-28
8To change the final gear oil
1. Place the ATV on a level surface.
2. Place an oil pan under the final gear case to collect the used oil.
3. Remove the final gear oil filler bolt, the final gear oil level check bolt, the final gear oil drain
bolt and their gasket to drain the oil from the
final gear case.
4. Install the drain bolt and its new gasket, and then tighten the bolt to the specified torque. 5. Refill with the recommended final gear oil to
the brim of the check hole as shown.
NOTICE: Be sure no foreign material en-
ters the final gear case.
[ECB00422]
1. Final gear oil drain bolt
2. Gasket
12
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
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8
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.
EBU23427Differential gear oilThe 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. To check the differential gear oil level
1. Place the ATV on a level surface.
2. Remove the differential gear oil filler bolt and its gasket, and then check the oil level in the
differential gear case. The oil level should be
at the brim of the filler hole.
3. If the oil is below the brim of the filler hole, add sufficient oil of the recommended type to
raise it to the correct level.
4. Check the gasket for damage, and replace it if necessary.
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)
1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil level
1
2
3
4
U2LB61E0.book Page 29 Friday, February 21, 2014 3:03 PM