2020 YAMAHA KODIAK 450 differential

EBU17421
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS .............................. 1-1
SAFETY INFORMATION ................................ 2-1
DESCRIPTION................................................ 3-1Left view ...................................................... 3-1
Right view.................................................... 3-1
Controls and instruments............................ 3-2
INSTRUMENT AND CONTROL
FUNCTIONS ................................................... 4-1 Main switch ................................................. 4-1
Indicator lights and warning lights .............. 4-1
Display unit ................................................. 4-4
Handlebar switches .................................... 4-7
Throttle lever ............................................. 4-13
Speed limiter ............................................. 4-13
Front brake lever ....................................... 4-14
Brake pedal and rear brake lever .............. 4-14
Drive select lever ....................................... 4-15
Fuel tank cap............................................. 4-16
Fuel ........................................................... 4-17
Seat ........................................................... 4-18 Storage compartment............................... 4-19
Front carrier .............................................. 4-20
Rear carrier ............................................... 4-20
Front and rear shock absorbers .............. 4-20
Winch (for Europe) .................................... 4-22
Trailer hitch (equipped models) ................ 4-23
Auxiliary DC jack....................................... 4-24
Winch pre-wiring (for Oceania) ................. 4-25
PRE-OPERATION CHECKS .......................... 5-1 Fuel ............................................................. 5-3
Engine oil .................................................... 5-3
Final gear oil ............................................... 5-3
Differential gear oil ...................................... 5-3
Coolant ....................................................... 5-3
Front and rear brakes ................................. 5-3
Throttle lever ............................................... 5-4
Tires ............................................................ 5-4
Chassis fasteners ....................................... 5-7
Instruments, lights and switches ................ 5-7
OPERATION .................................................. 6-1 Starting the engine ..................................... 6-1UBB562E0.book Page 1 Thursday, March 14, 2019 9:59 AM

Operating the drive select lever and driving in reverse ....................................... 6-2
Engine break-in ........................................... 6-4
Parking ........................................................ 6-4
Parking on a slope ...................................... 6-5
Accessories and loading ............................. 6-5
RIDING YOUR ATV ........................................ 7-1 GETTING TO KNOW YOUR ATV ................ 7-2
RIDE WITH CARE AND GOOD JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............... 7-9
TURNING YOUR ATV................................ 7-12
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL .................................. 7-16
CROSSING A SLOPE................................ 7-17
CROSSING THROUGH SHALLOW WATER .................................................... 7-18
RIDING OVER ROUGH TERRAIN ............. 7-20
SLIDING AND SKIDDING.......................... 7-21
WHAT TO DO IF... ..................................... 7-22
WHAT TO DO... ......................................... 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT................................................ 8-1 Owner’s Manual and tool kit ....................... 8-2 Periodic maintenance chart: Emission
control system .......................................... 8-3
Periodic maintenance chart: General maintenance and lubrication .................... 8-5
Removing and installing panels ................ 8-10
Checking the spark plug........................... 8-17
Engine oil and oil filter cartridge ............... 8-19
Why Yamalube ......................................... 8-23
Final gear oil ............................................. 8-24
Changing the differential gear oil .............. 8-27
Coolant ..................................................... 8-29
Cleaning the air filter ................................. 8-33
Cleaning the spark arrester ...................... 8-36
V-belt cooling duct check hose ................ 8-37
V-belt case drain plug............................... 8-37
Adjusting the throttle lever free play ......... 8-38
Valve clearance......................................... 8-39
Brakes....................................................... 8-39
Checking the front brake pads and rear brake friction plates ................................ 8-40
Checking the brake fluid level .................. 8-40
Changing the brake fluid .......................... 8-42
Checking the front brake lever free play... 8-42
Adjusting the rear brake lever and brake pedal ....................................................... 8-42
Axle boots................................................. 8-47
Brake light switches ................................. 8-48
UBB562E0.book Page 2 Thursday, March 14, 2019 9:59 AM

4-1
4
EBU17739
INSTRUMENT AND CONTROL FUNCTIONS
EBU29913Main switch“” (on)
All electrical systems are supplied with power. The
engine can be started. The key cannot be re-
moved.
“ ” (off)
All electrical systems are off. The key can be re-
moved.
EBU26699Indicator lights and warning lightsFor non-differential gear lock models
OFF ON
1. Neutral indicator light “N”
2. Reverse indicator light “R”
3. Park indicator light “P”
4. Coolant temperature warning light “ ”
5. Electric Power Steering warning light “EPS” (equipped models)
6. Engine trouble warning light “ ”
7. Four-wheel drive indicator light “ ”1
2
3 4
6
7
5
UBB562E0.book Page 1 Thursday, March 14, 2019 9:59 AM

4-2
4For differential gear lock models
EBU17861Neutral indicator light “ ”
This indicator light comes on when the transmis-
sion is in the neutral position.
EBU17831Reverse indicator light “ ”
This indicator light comes on when the transmis-
sion is in the reverse position.EBU17971Park indicator light “ ”
This indicator light comes on when the transmis-
sion is in the park position.EBU34562Coolant temperature warning light “ ”
This warning light comes on when the engine
overheats. When this occurs during operation,
stop the engine as soon as it is safe to do so and
allow it to cool down for about 10 minutes.
The electrical circuit of the warning light can be
checked by turning the key to “ ” (on). The
warning light should come on for a few seconds,
and then go off.
If the warning light does not come on initially when
the key is turned to “ ” (on), or if the warning
light remains on, have a Yamaha dealer check the
electrical circuit.TIPThe radiator fan turns on or off automatically ac-
cording to the coolant temperature.
1. Neutral indicator light “N”
2. Reverse indicator light “R”
3. Park indicator light “P”
4. Coolant temperature warning light “ ”
5. Electric Power Steering warning light “EPS”
6. Engine trouble warning light “ ”
7. Four-wheel drive indicator light “ ”
8. Differential gear lock indicator light “ ” 1
2
3
4
6
7
8
5
DIFF.LOCK
UBB562E0.book Page 2 Thursday, March 14, 2019 9:59 AM

4-3
4
NOTICEECB02401The engine may overheat if the ATV is over-
loaded. Reduce the load to specification.
 The engine may overheat if mud or dirt has
accumulated on the radiator. Gently clean
the radiator. (See page 9-1.)
 Continuous use while the warning light is on
will damage the engine. EBU27288Engine trouble warning light “ ”
The electrical circuit of the warning light can be
checked by turning the key to “ ” (on). The
warning light should come on for a few seconds,
and then go off.
If the warning light does not come on initially when
the key is turned to “ ” (on), or if the warning
light remains on, have a Yamaha dealer check the
vehicle.
For non-differential gear lock models
This warning light comes on or flashes when an
electrical circuit monitoring the engine is not work-
ing correctly. When this occurs, have a Yamaha
dealer check the self-diagnosis system. For differential gear lock models
This warning light comes on or flashes if a problem
is detected in the electrical circuit monitoring the
engine. When this occurs, the display will indicate
an error code (see page 4-6). Have a Yamaha
dealer check the self-diagnosis system.
EBU30572Electric Power Steering warning light “EPS”
(equipped models)
This warning light comes on when the key is
turned to “ ” (on), and then goes off once the
engine is started. If the warning light remains on or
comes on after the engine is started, the EPS sys-
tem may not be working correctly. When this oc-
curs, have a Yamaha dealer check the EPS
system.
The electrical circuit of the warning light can be
checked by turning the key to “ ” (on). If the
warning light does not come on, have a Yamaha
dealer check the electrical circuit.TIP
If the engine is stopped using the engine stop
switch and the key is in the “ ” (on) position,
the EPS warning light comes on to indicate that
the power assistance for the steering is not
functioning.
UBB562E0.book Page 3 Thursday, March 14, 2019 9:59 AM

4-4
4
If the steering load is too heavy (i.e., excessive
steering use when the ATV is traveling at a slow
speed), the power assist is reduced to protect
the EPS motor from overheating.
EBU17955Four-wheel drive indicator light “ ”
This indicator light comes on when the drivetrain
is set to “4WD” (four-wheel drive).TIPDue to the synchronizing mechanism in the differ-
ential gear case, the light may not come on until
the ATV starts moving. EBU38750Differential gear lock indicator light “ ”
(equipped models)
This indicator light comes on when the drivetrain
is set to “4WD” with the differential gear locked.TIPWhen the On-Command differential gear lock
switch is set to “LOCK”, the “ ” indicator light will
flash until the differential gear is completely locked
or unlocked. Turn the handlebar or start moving to
help the differential lock to engage or disengage.
EBU37053Display unit The display unit is equipped with the following:
speedometer
 fuel gauge
 multi-function display
 self-diagnosis device1. Select button “SEL”
2. Fuel gauge
3. Speedometer
4. Multi-function display1 2
4
3
UBB562E0.book Page 4 Thursday, March 14, 2019 9:59 AM

4-6
4Odometer and tripmeter
The odometer shows the total distance traveled
by the vehicle.
The tripmeter shows the distance traveled since it
was last reset.
To reset the tripmeter, push the select button
“SEL” for one second.
TIP
The odometer will lock at 99999.
 The tripmeter will reset and continue counting
after 9999.9 is reached. Service tripmeter
The service tripmeter shows the distance traveled
since it was reset at the last maintenance.
To reset the service tripmeter, push the select but-
ton “SEL” for one second.TIPThe service tripmeter will reset and continue
counting after 9999.9 is reached. Hour meter
The hour meter shows the total time the engine
has been running. Self-diagnosis device
This model is equipped with a self-diagnosis de-
vice for various electrical circuits.
For non-differential gear lock models
If a problem is detected in any of those circuits,
the engine trouble warning light will come on or
flash.
If this occurs, have a Yamaha dealer check the ve-
hicle.
1. Error code display
2. Engine trouble warning light “ ”
2
1
UBB562E0.book Page 6 Thursday, March 14, 2019 9:59 AM

4-7
4
For differential gear lock models
If a problem is detected in any of those circuits,
the engine trouble warning light will come on or
flash, and the display will indicate an error code.
If the display indicates an error code, note the
code number and have a Yamaha dealer check
the vehicle.
NOTICEECB01181To prevent engine damage, be sure to consult
a Yamaha dealer as soon as possible if this oc-
curs.
EBU18068Handlebar switchesFor Oceania1. Light switch “ / /OFF”
2. Engine stop switch “ / ”
3. Start switch “ ”
4. Horn switch “ ”
3421
UBB562E0.book Page 7 Thursday, March 14, 2019 9:59 AM