2015 YAMAHA GRIZZLY 450 drain bolt

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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8-20
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)
U2LC61E0.book Page 20 Wednesday, February 26, 2014 3:56 PM

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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8-25
8
To change the differential gear oil
1. Place the ATV on a level surface.
2. Place an oil pan under the differential gear case to collect the used oil.
3. Remove the differential gear oil filler bolt, the differential gear oil drain bolt and their gasket
to drain the oil from the differential 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 differential gear
oil to the brim of the filler hole as shown.
NOTICE: Be sure no foreign material en-
ters the differential gear case.
[ECB00412]
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.
1
2
3
4
U2LC61E0.book Page 25 Wednesday, February 26, 2014 3:56 PM

8-27
8
ter since they are harmful to the engine. If
water has been used instead of coolant,
replace it with coolant as soon as possible,
otherwise the cooling system will not be
protected against frost and corrosion. If
water has been added to the coolant, have
a Yamaha dealer check the antifreeze con-
tent of the coolant as soon as possible,
otherwise the effectiveness of the coolant
will be reduced.
[ECB01012]
TIP
The radiator fan is automatically switched on or
off according to the coolant temperature in the
radiator.
 If the engine overheats, see page 8-65 for fur-
ther instructions. EBU23606To change the coolant
WARNING
EWB01891Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always place a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap. 1. Place the ATV on a level surface.
2. Remove panels D and E. (See page 8-10.)
3. Place a container under the engine, and then
remove the coolant drain bolt and its gasket.
(Use a trough or a similar object as shown to
prevent coolant from spilling on the footrest.)
1. Coolant reservoir capCoolant reservoir capacity (up to the maxi-
mum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
U2LC61E0.book Page 27 Wednesday, February 26, 2014 3:56 PM

8-28
84. Remove the front carrier and panel B. (See
page 8-10.)
5. Remove the radiator cap.
6. Remove panel C. (See page 8-10.)
7. Remove the coolant reservoir cap.
8. Disconnect the coolant reservoir hose on the coolant reservoir side, and then drain the
coolant from the coolant reservoir.
1. Coolant drain bolt
2. Gasket
1. Trough
2
1
1. Radiator cap
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8-29
8
9. After draining the coolant, thoroughly flush
the cooling system with clean tap water.
10. Install the coolant drain bolt and its new gas- ket, and then tighten the bolt to the specified
torque.
11. Connect the coolant reservoir hose.
12. Pour the recommended coolant into the res- ervoir to the maximum level mark, and then
install the reservoir cap. NOTICE: Mix anti- freeze with distilled water only. However, if
distilled water is not available, soft water
may be used for refilling. Do not use hard
water or salt water since they are harmful
to the engine.
[ECB00992]
13. Pour the recommended coolant into the radi-
ator until it is full.
14. Install the radiator cap, start the engine, let it idle for several minutes, and then turn it off.
15. Remove the radiator cap to check the coolant level in the radiator. If it is low, add sufficient
coolant until it reaches the top of the radiator,
and then install the radiator cap.
1. Coolant reservoir hoseTightening torque:Coolant drain bolt:10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
Antifreeze/water mixture ratio: 1:1
Recommended antifreeze: High-quality ethylene glycol antifreeze con-
taining corrosion inhibitors for aluminum
engines
Coolant quantity: Radiator capacity (including all routes):1.32 L (1.40 US qt, 1.16 Imp.qt)
Coolant reservoir capacity (up to the maxi-
mum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
U2LC61E0.book Page 29 Wednesday, February 26, 2014 3:56 PM

9-2
9
EBU25934StorageShort-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. Turn the fuel cock lever to “OFF”.
3. Drain the carburetor float chamber by loosen- ing the drain bolt; this will prevent fuel depos-
its from building up. Pour the drained fuel into
the fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if available) to prevent the fuel from deteriorat-
ing. 5. 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.
6. Lubricate all control cables and the pivoting points of all levers and pedals.
7. 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-
Specified amount:
7.5 ml of stabilizer to each liter of fuel (or 1
oz of stabilizer to each gallon of fuel)U2LC61E0.book Page 2 Wednesday, February 26, 2014 3:56 PM