2021 YAMAHA KODIAK 450 engine oil

9-21
9
TIPSkip steps 6–10 if the oil filter cartridge is not be-
ing replaced. 6. Remove panels C and D. (See page 9-10.)
7. Remove the oil filter cartridge with an oil filterwrench.1. Engine oil drain bolt
2. Gasket
12
1. Oil filter cartridge
1. Oil filter wrench
11
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9-22
9
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. 10. 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.1. O-ring
1. Torque wrenchTightening torque:Oil filter cartridge:17 N

9-23
9
12. Refill with the specified amount of the recom-
mended engine oil.
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.
13. Check the engine oil filler cap O-ring for dam-
age, and then install the filler cap.
14. Start the engine and let it idle for several min- utes while checking for oil leakage. If any oil
leakage is found, immediately turn the engine
off and check for the cause.
15. Turn the engine off, wait at least ten minutes, and then check the oil level and correct it if
necessary.
16. Install panel E.EBU38620Why YamalubeYAMALUBE oil is a Genuine YAMAHA Part born of the engineers’ passion and belief that engine oil is
an important liquid engine component. We form
teams of specialists in the fields of mechanical en-
gineering, chemistry, electronics and track test-
ing, and have them develop the engine together
with the oil it will use. Yamalube oils take full ad-
vantage of the base oil’s qualities and blend in the
ideal balance of additives to make sure the final oil
clears our performance standards. Thus,
Yamalube mineral, semisynthetic and synthetic oils have their own distinct characters and value.
Yamaha’s experience gained over many years of
Recommended oil:
See page 11-1.
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)
UBEY60E0.book Page 23 Monday, July 27, 2020 10:46 AM

9-24
9research and development into oil since the
1960’s helps make Yamalube the best choice for
your Yamaha engine.
EBU28569Final 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 chart.
To check the final gear oil level
1. Park 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 levelTightening torque:Final gear oil filler bolt:22 N·m (2.2 kgf·m, 16 lb·ft)1
2
3
4
UBEY60E0.book Page 24 Monday, July 27, 2020 10:46 AM

9-35
9
5. Pull off the lock plate from the main air filter
assembly, and then remove the air filter ele-
ment (sponge material) from the frame.
6. Wash the air filter elements gently but thor- oughly with YAMALUBE Air Filter Cleaner, or
a dedicated parts cleaning solvent.
WARNING! Always use parts cleaning sol- vent. Never use low-flash-point solvents
or gasoline because the engine could
catch fire or explode.
[EWB01943]
7. Squeeze out the excess moisture, and let dry. NOTICE: Do not twist the sponge material
when squeezing it.
[ECB00442]
8. Check the air filter elements (sponge material) for damage, replace if necessary.
9. Apply YAMALUBE Foam Air Filter Oil (or equivalent) to the air filter elements.TIPThe sponge material should be wet but not drip-
ping. 10. Install the sub air filter element.
11. Install the main air filter element onto its frame, then the lock plate, and then install the
main air filter assembly.
1. Frame
2. Air filter element (sponge material)
3. Lock plate
1
2
3
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10-2
10
EBU27264StorageShort-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. Make any necessary repairs and perform all outstanding maintenance.
2. Follow all the instructions in the Cleaning sec- tion of this chapter.
3. Fill up the fuel tank and add fuel stabilizer (Fu- el Med Rx if available), and then run the en-
gine for 5 minutes to distribute the treated
fuel. 4. Perform the following steps to protect the en-
gine from internal 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.
5. Lubricate all control cables and the pivoting points of all levers and pedals.
6. Put the frame on stands or blocks to raise all wheels off the ground. (Alternatively, turn the
wheels each month to prevent the tires from
degrading in one spot.)
7. Cover the muffler outlet with a plastic bag to prevent moisture from entering it.
Specified amount:
7.5 ml per liter of fuel (1 oz per gallon)UBEY60E0.book Page 2 Monday, July 27, 2020 10:46 AM

11-2
11
Bore × stroke:
84.5 × 75.0 mm (3.33 × 2.95 in)
Compression ratio: 10.0 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
SAE viscosity grades:5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50 Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Quantity: Oil change: 2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter removal: 2.40 L (2.54 US qt, 2.11 Imp.qt)
Final gear oil:Type:Yamaha Friction Modified Shaft Drive Gear Oil
Quantity: 0.38 L (0.40 US qt, 0.33 Imp.qt)Differential gear oil:Type:Yamaha Friction Modified Shaft Drive Gear Oil or SAE 80
API GL-4 Hypoid gear oil0 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
UBEY60E0.book Page 2 Monday, July 27, 2020 10:46 AM

13-1
13
INDEX
AAccessories and loading ................................................ 7-5
Accessories, DC jack ...................................................5-24
Air filter, cleaning ......................................................... 9-33
Axle boots .................................................................... 9-47BBattery .......................................................................... 9-53
Brake fluid, changing ...................................................9-42
Brake fluid level, checking ........................................... 9-40
Brake lever free play, checking the front ..................... 9-42
Brake lever, front .......................................................... 5-14
Brake levers, checking and lubricating ........................ 9-49
Brake light switches ..................................................... 9-48
Brake pads and friction plates, checking ..................... 9-40
Brake pedal and rear brake lever ................................. 5-14
Brake pedal, checking and lubricating ........................ 9-50
Brakes .......................................................................... 9-39
Brakes, front and rear .................................................... 6-3
Brake/tail light bulb, replacing ..................................... 9-63CCables, checking and lubricating ................................. 9-49
Carrier, front ................................................................. 5-20
Carrier, rear .................................................................. 5-20
Chassis fasteners ........................................................... 6-7
Cleaning ....................................................................... 10-1
Coolant ................................................................. 6-3, 9-29
Coolant temperature warning light ................................. 5-2DDifferential gear lock, indicator (equipped models) ....... 5-4Differential gear oil ......................................................... 6-3
Differential gear oil, changing ...................................... 9-27
Display unit .................................................................... 5-4
Drive select lever .......................................................... 5-15
Drive select lever and driving in reverse ........................ 7-2
Drive shaft universal joint, lubricating .......................... 9-51
EEmissions Certification label (for Europe) .................... 12-1
Engine break-in .............................................................. 7-4
Engine oil ....................................................................... 6-3
Engine oil and oil filter cartridge .................................. 9-19
Engine stop switch ......................................................... 5-9
Engine trouble warning light .......................................... 5-3
EPS warning light (equipped models) ............................ 5-3FFinal gear oil ......................................................... 6-3, 9-24
Four-wheel drive indicator light ..................................... 5-4
Four-wheel drive switch (On-Command 4WD) ............ 5-11
Fuel ...................................................................... 5-17, 6-3
Fuel tank cap ............................................................... 5-16
Fuses, replacing ........................................................... 9-57HHandlebar switches ....................................................... 5-7
Headlight beam, adjusting ........................................... 9-62
Headlight bulb, replacing ............................................. 9-59
Horn switch .................................................................... 5-9IIdentification numbers ................................................... 1-1
Indicator lights and warning lights ................................. 5-1
UBEY60E0.book Page 1 Monday, July 27, 2020 10:46 AM