2015 YAMAHA GRIZZLY 450 engine

8-17
8
TIPIf the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least ten minutes until the oil set-
tles for an accurate reading. 4. Remove the engine oil filler cap, and thenwipe the engine oil dipstick off with a clean
rag.
5. Insert the dipstick into the filler hole (without screwing it in), and then remove it again to
check the oil level.
TIPThe engine oil should be between the tip of the
dipstick and the maximum level mark. 6. If the engine oil is not between the tip of thedipstick and the maximum level mark, add
sufficient oil of the recommended type to
raise it to the correct level. NOTICE: Be sure
the engine oil is at the correct level, other-
wise engine damage may result.
[ECB00852]
7. Insert the dipstick into the oil filler hole, and then tighten the engine oil filler cap.
1. Engine oil filler cap
1. Engine oil dipstick
2. Maximum level mark
3. Tip of the engine oil dipstick
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8-18
88. Install the panel.
To change the engine oil (with or without oil fil-
ter cartridge replacement) 1. Place the ATV on a level surface.
2. Remove panel E. (See page 8-10.)
3. Start the engine, warm it up for several min- utes, and then turn it off.
4. Place an oil pan under the engine to collect the used oil.
5. Remove the engine oil filler cap, and then re- move the engine oil drain bolt and its gasket
to drain the oil from the crankcase.
TIPSkip steps 6–10 if the oil filter cartridge is not be-
ing replaced. 6. Remove panels C and D. (See page 8-10.)
7. Remove the oil filter cartridge with an oil filterwrench.
1. Engine oil drain bolt
2. Gasket
12
1. Oil filter cartridge
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8-19
8
TIPAn oil filter wrench is available at a nearby Yamaha
dealer. 8. Apply a thin coat of engine oil to the O-ring ofthe new oil filter cartridge.
TIPMake sure that the O-ring is properly seated. 9. Install the new oil filter cartridge with an oil fil-ter wrench, and then tighten it to the specified
torque with a torque wrench.
1. Oil filter wrench
1. O-ring
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8-20
810. Install panels D and C.
11. Install the engine oil drain bolt and its new gasket, and then tighten the bolt to the spec-
ified torque. 12. Refill with the specified amount of the recom-
mended engine oil, and then install and tight-
en the engine oil filler cap.
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.
1. Torque wrenchTightening torque:
Oil filter cartridge:17 Nm (1.7 m·kgf, 12 ft·lbf)
Tightening torque: Engine oil drain bolt:23 Nm (2.3 m·kgf, 17 ft·lbf)
Recommended oil:See page 10-1.
Oil quantity: Without oil filter cartridge replacement:2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter cartridge replacement: 2.40 L (2.54 US qt, 2.11 Imp.qt)
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8-21
8

Make sure that no foreign material enters the
crankcase.
13. 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.
14. Turn the engine off, wait at least ten minutes, and then check the oil level and correct it if
necessary.
15. Install panel E.EBU30271Final 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 level 1. Place the ATV on a level surface. 2. Remove the final gear oil filler bolt and its gas-
ket, and then check the oil level in the final
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 oil filler bolt gasket for damage, and replace it if necessary.
5. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified torque.
1. Final gear oil filler bolt
2. Gasket
3. Final gear oil
4. Correct oil level1
2
3
4
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8-22
8To change the final gear oil
1. Place the ATV on a level surface.
2. Remove the engine guard and the final gear case guard by removing the bolts.
3. Place an oil pan under the final gear case to collect the used oil. 4. Remove the final gear oil filler bolt, the final
gear oil drain bolt and their gasket to drain the
oil from the final gear case.
5. Install the drain bolt and its new gasket, and then tighten the bolt to the specified torque.
Tightening torque:
Final gear oil filler bolt:22 Nm (2.2 m·kgf, 16 ft·lbf)
1. Engine guard
2. Final gear case guard
3. Bolt
2
3 3
1. Final gear oil drain bolt
2. GasketTightening torque:
Final gear oil drain bolt:22 Nm (2.2 m·kgf, 16 ft·lbf)
12
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8-23
8
6. Refill with the recommended final gear oil to
the brim of the filler hole as shown. NOTICE:
Be sure no foreign material enters the final
gear case.
[ECB00422]
TIPIf the recommended oil is not available, SAE80W-
90 API GL-5 Hypoid gear oil may be used instead. However, when using this oil, noise from the final
gear case may occur when applying the rear
brake.
7. Check the oil filler bolt gasket for damage,
and replace it if necessary.
8. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified torque.
9. Check the final gear case for oil leakage. If oil is leaking, check for the cause.
10. Install the engine guard and the final gear case guard by installing the bolts, and then
tightening them to the specified torques.
1. Final gear oil filler bolt
2. Gasket
3. Final gear oil
4. Correct oil levelRecommended final gear oil:See page 10-1.1
2
3
4
Tightening torque: Final gear oil filler bolt:22 Nm (2.2 m·kgf, 16 ft·lbf)
Tightening torques: Engine guard bolt:7 Nm (0.7 m·kgf, 5.1 ft·lbf)
Final gear case guard bolt: 7 Nm (0.7 m·kgf, 5.1 ft·lbf)
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8-26
88. Check the differential gear case for oil leak-
age. If oil is leaking, check for the cause.
EBU23471CoolantThe coolant level should be checked before each
ride. In addition, the coolant must be changed at
the intervals specified in the periodic maintenance
and lubrication chart.EBU27127To check the coolant level1. Place the ATV on a level surface.TIPThe coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture. 2. Check the coolant level in the coolant reser- voir.
TIPThe coolant should be between the minimum and
maximum level marks. 3. If the coolant is at or below the minimum levelmark, remove panel C to access the coolant
reservoir. (See page 8-10.)
4. Remove the coolant reservoir cap, add cool- ant or distilled water to the maximum level
mark, install the reservoir cap, and then install
the panel. NOTICE: If coolant is not avail-
able, use distilled water or soft tap water
instead. Do not use hard water or salt wa-
Tightening torque:
Differential gear oil filler bolt:23 Nm (2.3 m·kgf, 17 ft·lbf)1. Maximum level mark
2. Minimum level mark
1
2
U2LC61E0.book Page 26 Wednesday, February 26, 2014 3:56 PM