OWNER’S MANUAL
MANUEL DU PROPRIÉTAIRE
MANUAL DEL PROPIETARIO
YFZ450SEW
5D3-28199-61
YAMAHA MOTOR CO., LTD.
PRINTED IN JAPAN
2006.05-0.3x2 !
(E,F,S)
This A
OWNER’S MANUAL
YFZ450SEW
5D3-28199-61-E0
EBU17170
INTRODUCTION
EBU17320
Congratulations on your purchase of the Yamaha YFZ450SEW. This ATV represents the result of many
years of Yamaha experience in the production of fine sporting, touring, and pacesetting racing machines.
With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability
that have made Yamaha a leader in these fields.
This manual will provide you with a good basic understanding of the features and operation of this ATV.
This manual includes important safety information. It provides information about special techniques and skills necessary to ride the ATV.
dures. If you have any questions regarding the operation or maintenance of your ATV, please consult a
Yamaha dealer.
AN IMPORTANT SAFETY MESSAGE:
●
READ THIS MANUAL COMPLETELY BEFORE OPERATING YOUR ATV. MAKE SURE YOU UNDERSTAND ALL INSTRUCTIONS.
●
PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE ATV.
●
THIS ATV, AND ANY OTHER ATV OVER 90 cc, SHOULD NOT BE RIDDEN BY ANYONE UNDER 16
YEARS OF AGE.
●
THIS ATV IS A HIGH-PERFORMANCE ATV FOR OFF-ROAD USE ONLY, FOR SPORT-TYPE RECREATIONAL AND COMPETITIVE USE BY EXPERIENCED OPERATORS.
It also includes basic maintenance and inspection proce-
EBU17330
WARNING
CAUTION:
NOTE:
IMPORTANT MANUAL INFORMATION
EBU17341
FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS INJURY OR DEATH.
Particularly important information is distinguished in this manual by the following notations:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
Failure to follow WARNING instructions could result in severe injury
or death to the ATV operator, a bystander, or a person inspecting or
repairing the ATV.
A CAUTION indicates special precautions that must be taken to avoid
damage to the ATV.
A NOTE provides key information to make procedures easier or clearer.
* Product and specifications are subject to change without notice.
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IMPORTANT NOTICE
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Welcome to the Yamaha world of motor sports!
This ATV is designed and manufactured for use on UNPAVED surfaces only. It is unsafe to operate this
ATV on any paved surface, paved street, paved road or motorway.
Please check your local riding laws and regulations before operating this ATV.
AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE.
from other vehicles, including motorcycles and
cars. A collision or rollover can occur quickly, even
during routine maneuvers such as turning and
riding on hills or over obstacles, if you fail to take
proper precautions.
SEVERE INJURY OR DEATH can result if you do
not follow these instructions:
●
Read this manual and all labels carefully and follow the operating procedures described.
●
Never operate an ATV without proper training or
instruction.
●
Always follow the age recommendation:
– A child under 16 years old should never operate an ATV with engine size greater than 90 cc.
●
Never allow a child under age 16 to operate an
ATV without adult supervision, and never allow
continued use of an ATV by a child if he or she
An ATV handles differently
does not have the abilities to operate it safely.
●
Never carry a passenger on an ATV.
●
Always avoid operating an ATV on any paved
surfaces, including sidewalks, driveways, parking lots and paved streets.
●
Never operate an ATV on any paved street,
paved road or motorway.
●
Watch carefully for other vehicles when operating on unpaved public streets or roads. Make
sure you know your country’s laws and regulations before you ride on unpaved public streets
or roads.
●
Never operate an ATV without wearing an approved motorcycle helmet that fits properly. You
should also wear eye protection (goggles or face
shield), gloves, boots, a long-sleeved shirt or a
jacket, and long pants.
●
Never consume alcohol or drugs before or while
operating this ATV.
●
Never operate at speeds too fast for your skills
or the riding conditions. Always go at a speed
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that is proper for the terrain, visibility, operating
conditions, and your experience.
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Never attempt wheelies, jumps, or other stunts.
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Always inspect your ATV each time you use it to
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make sure it is in safe operating condition. Always follow the inspection and maintenance
3
procedures and schedules described in this
manual.
4
●
Always keep both hands on the handlebars and
both feet on the footrests of the ATV during op-
5
eration.
●
Always go slowly and be extra careful when op-
6
erating on unfamiliar terrain. Always be alert to
changing terrain conditions when operating the
7
ATV.
●
Never operate on excessively rough, slippery or
8
loose terrain until you have learned and prac-
9
ticed the skills necessary to control the ATV on
such terrain. Always be especially cautious on
these kinds of terrain.
●
Always follow proper procedures for turning as
described in this manual. Practice turning at low
speeds before attempting to turn at faster
speeds and never turn at excessive speeds.
●
Never operate the ATV on hills too steep for the
ATV or for your abilities. Practice on smaller hills
before attempting larger hills.
●
Always follow proper procedures for climbing
hills as described in this manual. Check the terrain carefully before you start up any hill. Never
climb hills with excessively slippery or loose surfaces. Shift your weight forward. Never open the
throttle suddenly or make sudden gear changes.
Never go over the top of a hill at high speed.
●
Always follow proper procedures for going down
hills and for braking on hills as described in this
manual. Check the terrain carefully before you
start down any hill. Shift your weight backward.
Never go down a hill at high speed. Avoid going
down a hill at an angle that would cause the vehicle to lean sharply to one side. Go straight
down the hill where possible.
●
Always follow proper procedures for crossing
the side of a hill as described in this manual.
Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the
ATV. Never attempt to turn the ATV around on
any hill until you have mastered the turning technique described in this manual on level ground.
Avoid crossing the side of a steep hill if possible.
●
Always use proper procedures if you stall or roll
backwards when climbing a hill. To avoid stall-
1-2
ing, use the proper gear and maintain a steady
speed when climbing a hill. If you stall or roll
backwards, follow the special procedure for
braking described in this manual. Dismount on
the uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following
the procedure described in this manual.
●
Always check for obstacles before operating in a
new area.
●
Never attempt to operate over large obstacles,
such as large rocks or fallen trees. Always follow
proper procedures when operating over obstacles as described in this manual.
●
Always be careful when skidding or sliding.
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain. On extremely slippery surfaces, such as
ice, go slowly and be very cautious in order to reduce the chance of skidding or sliding out of control.
●
Never operate an ATV in fast flowing water or in
water deeper than that recommended in this
manual. Remember that wet brakes may have
reduced stopping ability. Test your brakes after
leaving water. If necessary, apply them several
times to let friction dry out the linings.
●
Always use the size and type of tires specified in
this manual.
●
Always maintain proper tire pressure as described in this manual.
●
Never modify an ATV through improper installation or use of accessories.
●
Never exceed the stated load capacity for an
ATV. Cargo should be properly distributed and
securely attached. Reduce speed and follow instructions in this manual for carrying cargo or
pulling a trailer. Allow greater distance for braking.
EWB00061
WARNING
●
Always turn off the engine when refueling.
●
Do not refuel right after the engine has been
running and is still very hot.
●
Do not spill gasoline on the engine or exhaust pipe/muffler when refueling. Never refuel while smoking, or in the vicinity of
sparks, open flames, or other sources of ignition such as the pilot lights of water heaters and clothes dryers. Gasoline can catch
fire and you could be burned.
●
When transporting the ATV in another vehicle, be sure it is kept upright and that the fuel
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cock is in the “OFF” position. Otherwise, fuel
may leak out of the carburetor or fuel tank.
1
●
Gasoline is poisonous. If you should swallow some gasoline or inhale a lot of gasoline
2
vapor, or get some gasoline in your eyes,
seek medical help immediately. If gasoline
3
spills on your skin, wash with soap and water. If gasoline spills on your clothing,
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change your clothes.
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EWB00070
WARNING
Always operate your ATV in an area with adequate ventilation. Never start or run the engine
in a closed area. Exhaust fumes are poisonous
and may cause loss of consciousness and
death within a short time.
1-4
EBU17660
LOCATION OF THE WARNING AND SPECIFICATION LABELS
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2-1
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1
Read and understand all of the labels on your ATV. These labels contain important information for safe and
proper operation.
2
Never remove any labels from your ATV. If a label becomes difficult to read or comes off, request a replacement label from your Yamaha dealer.
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2-2
ForEurope
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2
ForEuropeForOceania
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1
YAMAHA MOTOR CO., LTD.
SHIZUOKA JAPAN
p
4GB-2155A-00
Before you operate this vehicle,
GB
read the owner’s manual.
Lesen Sie die Bedienungsanleitung
D
bevor Sie dieses Fahrzeug fahren.
Antes de conducir este vehículo,
E
lea el Manual del Propietario.
Lire le manuel du propriétaire avant
F
d’utiliser ce véhicule.
Prima di usare il veicolo,
I
leggete il manuale di istruzioni.
Voor het gebruik van dit voertuig
NL
de handleiding met aandacht lezen.
Antes de utilizar este veículo,
P
leia o manual do proprietário.
Innan du kör detta fordon,
S
läs handboken.
2-3
5FK-21568-00
Improper ATV use can result in SEVERE
WARNING
INJURY or DEATH.
ALWAYS USE
AN APPROVED ON PUBLIC PASSENGERS WITH DRUGS
HELMET ANDROADS
PROTECTIVE
NEVER
9
without proper training or instruction.
9
at speeds too fast for your skills or
the conditions.
9
on public roads-a collision can occur
with another vehicle.
9
with a passenger-passengers affect balance
and steering and increase risk
of losing control.
ALWAYS :
9 use proper riding techniques to avoid
vehicle overturns on hills and rough terrain
and it turns.
9
avoid paved surfaces-pavement may
seriously affect handling and control.
All electrical systems are supplied with power, and
the engine can be started. The key cannot be removed.
OFFON
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2
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OFF
All electrical systems are off. The key can be removed.
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1. Main switch
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4-1
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Indicator light and warning light
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1. Neutral indicator light “N”
2. Coolant temperature warning light “”
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Neutral indicator light “”
This indicator light comes on when the transmis-
10
sion is in the neutral position.
11
EBU17930
1
Coolant 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.
2
The electrical circuit of the warning light can be
checked according to the following procedure.
1. Set the engine stop switch to “” and turn the
key to “ON”.
2. Shift the transmission into the neutral position
or pull the clutch lever.
3. Push the start switch. If the warning light does
not come on while the start switch is pushed,
have a Yamaha dealer check the electrical circuit.
ECB00010
CAUTION:
●
The engine may overheat if the ATV is overloaded. In this case, reduce the load to specification.
●
Start the engine after making sure that the
warning light is out. Continuous use while
the warning light is on may cause damage to
the engine.
4-2
EBU18060
Handlebar switches
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2
3
1. Light switch “LIGHTS”
2. Engine stop switch “ENG. STOP”
3. Start switch “START”
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Engine stop switch “ENG. STOP”
Set this switch to “RUN” before starting the engine.
The engine stop switch controls the ignition and
stops the engine when it is running. Use this switch
to stop the engine in an emergency situation. The
engine will not start or run when this switch is set
to “OFF”.
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Start switch “START”
Push this switch to crank the engine with the starter.
ECB00050
CAUTION:
See the starting instructions on page 6-1 prior
to starting the engine.
EBU18120
Light switch “LIGHTS”
Set this switch to “LO” to turn on the low beams
and the taillight. Set the switch to “HI” to turn on the
high beams and the taillight. Set the switch to
“OFF” to turn off all the lights.
NOTE:
The headlights and the taillight can be turned on
only when the engine is running.
EBU18280
Throttle lever
Once the engine is running, movement of the throttle lever will increase the engine speed.
Regulate the speed of the ATV by varying the
throttle position. Because the throttle is springloaded, the ATV will decelerate, and the engine will
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4-3
return to an idle any time the hand is removed from
the throttle lever.
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1. Throttle lever
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Before starting the engine, check the throttle to be
sure it is operating smoothly. Make sure it returns
9
to the idle position as soon as the lever is released.
EWB00250
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WARNING
Malfunction of the throttle could make it difficult to speed up or slow down when you need
to. This could cause an accident. Check the operation of the throttle lever before you start the
engine. If the throttle does not work smoothly,
check for the cause. Correct the problem be-
fore riding the ATV or consult a Yamaha dealer.
EBU18321
Speed limiter
Your ATV was delivered with an adjustable speed
limiter. The speed limiter keeps the throttle from
fully opening, even when the throttle lever is
pushed to the maximum.
1. 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 available
and the maximum speed of the ATV, turn the
adjusting screw in direction (b).
4-4
3
1. Locknut
2. Adjusting screw
3. No more than 12 mm (0.47 in)
(a)
(See page 8-29.)
1
2
EBU18382
Clutch lever
The clutch lever is located on the left handlebar
(b)
and the ignition circuit cut-off system is incorporated in the clutch lever holder. To disengage the
clutch, pull the clutch lever toward the handlebar
grip. To engage the clutch, release the clutch lever.
The clutch lever should be pulled rapidly and re-
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5
leased slowly for smooth clutch operation. (See
page 6-1 for a description of the ignition circuit cut-
6
off system.)
7
3. Tighten the locknut.
EWB00240
WARNING
Improper adjustment of the speed limiter and
throttle could cause throttle cable damage or
improper throttle operation. You could lose
control, have an accident or be injured. 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).
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1. Clutch lever
4-5
EBU18411
Brake lever
1
The brake lever is located at the right handlebar
grip. To apply the front brake, pull the brake lever
2
toward the handlebar grip.
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2
1
1. Brake lever
2. Locknut
3. Brake lever position adjusting bolt
4. Distance between brake lever and handlebar grip
EBU18432
Brake pedal
The brake pedal is located on the right side of the
ATV. To apply the rear brake, push down on the
brake pedal.
1
4
1. Brake pedal
EBU18520
Parking brake lever
Use the parking brake before starting the engine or
parking the ATV, especially on a slope. To apply
the parking brake, move the parking brake lever in
direction (a). To release the parking brake, move
the parking brake lever in direction (b).
4-6
1. Parking brake lever (locked position)
EWB00220
WARNING
●
Always set the parking brake before starting
the engine. The ATV could start moving unexpectedly if the parking brake is not applied. This could cause loss of control or a
collision.
●
Always be sure you have released the parking brake before you begin to ride. The brake
could overheat if you ride the ATV without releasing the parking brake. You could lose
braking performance which could cause an
accident. You could also wear out the brakes
prematurely.
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7
1. Parking brake lever (unlocked position)
EBU18530
Shift pedal
This ATV is equipped with a constant-mesh 5speed transmission. The shift pedal is located on
the left side of the engine and is used in combination with the clutch when shifting.
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1. Shift pedal
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EBU18720
1
Fuel tank cap
8
Remove the fuel tank cap by turning it counterclockwise.
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1
1. Fuel tank cap
EBU18810
Fuel
Make sure that there is sufficient fuel in the tank.
Fill the fuel tank to the bottom of the filler tube as
shown.
4-8
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