YAMAHA KODIAK 450 2021 Service Manual

5-13
5
All wheels turn at the same speed when the dif-
ferential gear is locked, so it takes more effort
to turn the ATV. The effort needed to turn in-
creases with the riding speed. You may lose
control and have an accident if you cannot
make a sharp enough turn for the speed you
are traveling.
EBU18286Throttle leverPush the throttle lever to increase engine speed.
Spring tension returns the lever to the rest position
when released. Always check that the throttle le-
ver returns normally before starting the engine.
EBU18325Speed limiterThe speed limiter keeps the throttle from fully
opening, even when the throttle lever is pushed to
the maximum.
Adjusting the speed limiter1. Loosen the locknut.
2. To increase the maximum engine power
available and the maximum speed of the ATV,
turn the adjusting screw in direction (a). To
decrease the maximum engine power avail-
able and the maximum speed of the ATV, turn
1. Throttle lever
1. Locknut
2. Adjusting screw
3. No more than 12 mm (0.47 in)
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5-14
5the adjusting screw in direction (b). Do not
turn the adjusting screw out more than 12
mm (0.47 in) or the throttle cable could be
damaged. Always make sure the throttle lever
free play is adjusted to 2.0–4.0 mm (0.08–
0.16 in). (See page 9-38.)
WARNING! Im-
proper adjustment of the speed limiter and
throttle could cause throttle cable damage
or improper throttle operation. You could
lose control, resulting in an accident.
[EWB00242]
3. Tighten the locknut.EBU18393Front brake lever
The front brake lever is located on the right han-
dlebar. To apply the front brake, pull the brake le-
ver toward the handlebar grip.EBU18444Brake pedal and rear brake lever
1. Front brake lever
1
1. Brake pedal
1
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5-15
5
The brake pedal is located on the right side of the
ATV and the rear brake lever is located on the left
handlebar. To apply the rear brake, push down on
the brake pedal or pull the brake lever toward the
handlebar grip.
EBU18614Drive select leverThe drive select lever is used to shift the transmis-
sion into the low-range, high-range, neutral, re-
verse and park positions. See page 7-2 for drive
select lever operation.
1. Rear brake lever
1
1. Drive select lever
1
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5-16
5
EBU37980Fuel tank capRemove the fuel tank cap by turning it counter-
clockwise.
WARNING
EWB02522Gasoline and gasoline vapors are extremely
flammable. To avoid fires and explosions and
to reduce the risk of injury when refueling, fol-
low these instructions. 1. Before refueling, turn off the engine and besure that no one is sitting on the vehicle. Nev-
er refuel while smoking, or while in the vicinity of sparks, open flames, or other sources of
ignition such as the pilot lights of water heat-
ers and clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the pump nozzle into the fuel
tank filler hole. Stop filling when the fuel
reaches the bottom of the filler tube. Because
fuel expands when it heats up, heat from the
engine or the sun can cause fuel to spill out of
the fuel tank.1. Fuel tank cap
1
1. Fuel tank filler tube
2. Maximum fuel level
1
2
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5
3. Wipe up any spilled fuel immediately.
NOTICE: Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since fuel may
deteriorate painted surfaces or plastic
parts.
[ECB00982]
4. Turn the fuel tank cap fully clockwise to make sure it is securely closed.EBU38650FuelMake sure there is sufficient gasoline in the tank
before starting off. Refuel if necessary.
WARNING
EWB02532Gasoline is poisonous and can cause injury or
death. Handle gasoline with care. Never siphon
gasoline by mouth. If you should swallow some
gasoline or inhale a lot of gasoline vapor, or get
some gasoline in your eyes, see your doctor
immediately. If gasoline spills on your skin,
wash with soap and water. If gasoline spills on
your clothing, change your clothes.
TIPConfirm the gasoline pump nozzle has the same
fuel identification mark. Recommended fuel:Regular unleaded gasoline (Gasohol [E10]
acceptable)
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)1. EN228 fuel identification mark
1
E5
E10
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5-18
5About the recommended fuel
This model’s engine has been designed to use
regular unleaded gasoline. The research octane
number should be 95 or higher. If knocking or
pinging occurs, try a gasoline of a different brand
or higher octane.
TIPGasoline containing ethanol can be used if the
ethanol content does not exceed 10% (E10). Gas-
oline containing methanol is not recommended
because it can cause damage to the fuel system
or vehicle performance problems. NOTICEECB00071Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system.
EBU34141SeatTo remove the seat
Pull up the seat at the rear, and then pull the seat
rearward.1. Seat
1
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5-19
5
To install the seat
Insert the projections on the front of the seat into
the seat holders, and then push down on the seat
at the rear to lock it in place. Make sure that the
seat is securely fitted.
EBU37061Storage compartmentNOTICEECB00131Do not store metal or sharply edged objects,
like tools, in the storage compartment. If they
must be stored, wrap them in appropriate
cushion material to prevent damaging the stor-
age compartment. The storage compartment is located under the
seat. (See page 5-18.)
When storing any documents in the storage com-
partment, be sure to wrap them in a plastic bag so
that they will not get wet. When washing the ATV,
be careful not to let any water enter the storage
compartment.
1. Projection
2. Seat holder
1
12
2
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5-20
5Do not exceed the load limit of 2.0 kg (4 lb) for
the storage compartment.
 Do not exceed the maximum load of 240.0 kg
(530 lb) for the ATV.
EBU18964Front carrierDo not exceed the load limit of 40.0 kg (88 lb) for
the front carrier.
 Do not exceed the maximum load of 240.0 kg
(530 lb) for the ATV.
EBU18974Rear carrierDo not exceed the load limit of 80.0 kg (176 lb)
for the rear carrier.
 Do not exceed the maximum load of 240.0 kg
(530 lb) for the ATV.EBU1914AFront and rear shock absorbers The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
WARNING
EWB00401Always adjust the shock absorber assemblies
on the left and right side to the same setting.
Uneven adjustment can cause poor handling
and loss of stability, which could lead to an ac-
cident. Adjust the spring preload as follows.
Turn the spring preload adjusting ring in direction
(a) to increase the spring preload and thereby
harden the suspension, and in direction (b) to de-
crease the spring preload and thereby soften the
suspension.
Align the appropriate notch in the adjusting ring
with the position indicator on the shock absorber.
1. Storage compartment
1
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5-21
5
TIPA special wrench can be obtained at a Yamaha
dealer to make this adjustment. 1. Spring preload adjusting ring
2. Position indicator
12345
(a)
(b)
1
2
1. Special wrench
1
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5-22
5
EBU39230Winch
WARNING
EWB04350To reduce the risk of injury or death, read and
follow the Winch Owner’s Manual prior to use.
Never let anyone come between the winch and
pulled object or the winch and anchor point.
Do not use the winch unless all bystanders are
Front spring preload setting:
Minimum (soft):1
Standard: 2
Maximum (hard): 5
Rear spring preload setting: Minimum (soft):1
Standard: 2
Maximum (hard): 51. Winch
2. Fairlead
3. Hook
4. Hook strap
2
3
4 1
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