2021 YAMAHA KODIAK 450 radiator cap

4-1
4
EBU17681
DESCRIPTION
EBU17691Left view
EBU17701Right view
1. Radiator cap
2. Air filter
3. Battery
4. Fuses
5. Brake/tail light
6. Engine oil filler cap
7. Oil filter cartridge
8. Coolant reservoir
9. V-belt cooling duct check hose
1
2
3
4
5
9
7
8
6
1. Spark arrester
2. Storage compartment and tool kit
3. Fuel tank cap
4. Spark plug
5. Auxiliary DC jack
6. Front shock absorber
7. Winch
8. Rear brake light switch
9. Brake pedal
10.V-belt case drain plug
11.Rear shock absorber111
7
2
3
4
56
8
10
9
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9-30
93. If the coolant is at or below the minimum level
mark, remove panel C to access the coolant
reservoir. (See page 9-10.)
4. Remove the coolant reservoir cap. WARNING! Remove only the coolant res-
ervoir cap. Never attempt to remove the
radiator cap when the engine is hot.
[EWB02672]
5. Add coolant to the maximum level mark, in-stall the reservoir cap, and then install the
panel. NOTICE: If coolant is not available,
use distilled water or soft tap water in-
stead. Do not use hard water or salt water
since they are harmful to the engine. If wa-
ter has been used instead of coolant, re-
place 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-
1. Maximum level mark
2. Minimum level mark
1
2
1. Coolant reservoir cap
1
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9
tent of the coolant as soon as possible,
otherwise the effectiveness of the coolant
will be reduced.
[ECB01012]
EBU37131
To 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. Park the ATV on a level surface.
2. Remove the front carrier and panel F. (See page 9-10.)
3. Remove the radiator cap. 4. Remove panels D and E. (See page 9-10.)
5. 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. Radiator cap
1
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9
12. Pour the recommended coolant into the radi-
ator until it is full, and then install the radiator
cap.
13. Start the engine, let it idle for several minutes, and then turn it off.
TIPWhile the engine is idling, check the cooling sys-
tem for leaks. 14. When the engine is cool, remove the radiatorcap to check the coolant level in the radiator.
If it is low, add sufficient coolant until it reach-
es the top of the radiator, and then install the
radiator cap.
15. Install the panels and the front carrier.EBU37113Cleaning the air filterThe main air filter element and sub air filter ele-
ment should be cleaned every 20–40 hours of en-
gine operation. When servicing the air filter
elements, check the air filter case inlet for obstruc-
tions. Check the air filter case rubber joint to the
throttle body and the rubber joint manifold fittings
for an air-tight seal. Tighten all fittings securely to
avoid the possibility of unfiltered air entering the
engine.
TIP Replace the air filter elements if damaged.
 Service the air filter more frequently if you often
ride in wet or dusty areas.
 There is a check hose at the bottom of the air fil-
ter case. If dust or water collects in this hose,
empty the hose and clean the air filter case and
air filter elements. 1. Park the ATV on a level surface.
2. Remove the seat. (See page 5-18.)
3. Remove the air filter case cover by unhooking
the air filter case cover holders.1. Air filter case check hose
1
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9
Engine overheating
WARNING
EWB02291Wait 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 put a thick rag over the cap when opening.
Allow any remaining pressure to escape before completely removing the cap. TIP
Tap water can be used in an emergency. Change to the recommended coolant as soon as possible.
 The engine will tend to overheat if the radiator is caked with mud, or if the ATV is overloaded. Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer check
and repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.
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11-3
11
Quantity:0.23 L (0.24 US qt, 0.20 Imp.qt) (YFM450FWBD)
0.35 L (0.37 US qt, 0.31 Imp.qt) (YFM450FWB)Coolant quantity:Radiator (including all routes):1.32 L (1.40 US qt, 1.16 Imp.qt)
Coolant reservoir (up to the maximum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)Air filter:Air filter element:Wet element
Air filter oil grade:
Foam air-filter oilFuel:Recommended fuel:Regular unleaded gasoline (Gasohol [E10] acceptable)
Minimum research octane:
91
Fuel tank capacity: 14 L (3.7 US gal, 3.1 Imp.gal)
Fuel reserve amount: 4.0 L (1.06 US gal, 0.88 Imp.gal)Throttle body:ID mark:BB51Spark plug (s):Manufacturer/model:
NGK/DR7EA
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)
Drivetrain:Primary reduction ratio:1.000
Secondary reduction ratio:
7.944 (39/24 x 24/18 x 33/9)
Final drive: Shaft
Clutch type: Wet, centrifugal, shoe
Transmission type:
CVT automatic with reverse
Gear ratio: Transmission ratio:
2.550–0.750 : 1
Reverse gear: 1.706 (29/17)
Low range: 2.813 (45/16)
High range:
1.652 (38/23)Front tire:Size:AT25x8-12
Manufacturer/model:
CHENG SHIN/CU905Rear tire:Size:AT25x10-12
Manufacturer/model:
CHENG SHIN/CU906
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Ignition system:TCI
Charging system: AC magnetoBattery:Model:YTX20L-BS
Voltage, capacity: 12 V, 18.0 AhLights:Headlight:T19L, 30.0 W/30.0 W
Handlebar-mounted light: T15H, 35.0 W/36.5 W (YFM450FWBD)
Brake/tail light:
21.0 W/5.0 W
Meter lighting: LED
Neutral indicator light: LED
Reverse indicator light:
LED
Coolant temperature warning light: LED
Park indicator light: LED
Four-wheel-drive indicator light:
LED
Engine trouble warning light: LED
Differential gear lock indicator light: LED (YFM450FWBD) EPS warning light:
LED (YFM450FWBD)
Fuses:Main fuse:
40.0 A
Headlight fuse: 15.0 A
Signaling system fuse: 10.0 A
Ignition fuse:
10.0 A
Auxiliary DC jack fuse: 10.0 A
Fuel injection system fuse: 10.0 A
Four-wheel-drive motor fuse:
10.0 A (YFM450FWBD)
3.0 A (YFM450FWB)
Radiator fan motor fuse:
20.0 A
EPS fuse: 40.0 A (YFM450FWBD)EBU30403Noise and vibration levels statement (for Eu-
rope)
The figures quoted are emission levels and are not
necessarily safe working levels. Whilst there is a
correlation between the emission and exposure
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