warning YAMAHA YFZ450 2005 Owner's Manual

5-11 1. Fuel tank filler tube
2. Fuel level
1. Tube de remplissage du réservoir de carburant
2. Niveau de carburant
1. Tubo de llenado del depósito de combustible
2. Nivel de combustible
WARNING
_

Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.


Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up any
spilled fuel immediately.


Do not refuel right after the engine has
been running and is still very hot.


Be sure the fuel tank cap is closed secure-
ly.
_
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5-17
WARNING
_ Wait 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. _
EBU04980
Chain
Check the general condition of the chain and
check the chain slack before every ride. Lubricate
and adjust the chain as necessary. (See pages
8-101–8-109 for details.)
EBU10830
Throttle lever
Check to see that the throttle lever operates cor-
rectly. It must open smoothly and spring back to
the idle position when released. Have a Yamaha
dealer repair as necessary for proper operation.
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5-21
EBU01580
Tires
Always use the recommended tires.
WARNING
_ Use of improper tires on this ATV, or operation
of this ATV with improper or uneven tire pres-
sure, may cause loss of control, increasing
your risk of accident.
Pay attention to the following.
1. The tires listed below have been approved
by Yamaha Motor Co., Ltd. for this model.
Other tire combinations are not recom-
mended.ACE-01E
Manufacturer Size Type
Front DUNLOP AT21
× 7R-10KT331A
Radial
Rear DUNLOP AT20
× 10R-9KT355
Radial
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6-1
EBU01620
1-OPERATION
Read the Owner’s Manual carefully before riding
the ATV.
WARNING
_ Read the Owner’s Manual carefully to become
familiar with all controls. Loss of control could
cause an accident or injury. If there is a control
or function you do not understand, ask your
Yamaha dealer. _
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6-3
EBU14120
Starting a cold engine
WARNING
_ Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the ATV, which could lead to an acci-
dent or collision. _1. Apply the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON” and the engine
stop switch to “RUN”.
4. Shift the transmission into neutral.
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6-15
6. Shift into second gear (be careful not to shift
into neutral).
7. Open the throttle part way and gradually re-
lease the clutch lever.
8. Follow the same procedure when shifting to
the next higher gear.
WARNING
_ Opening the throttle abruptly or releasing the
clutch lever too quickly would increase the
chance of an accident or could make the ma-
chine wheelie including overturn. Always open
the throttle gradually and release the clutch le-
ver gradually. _
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6-17
EBU02080
To decelerate:
When slowing down or stopping, release the throt-
tle and apply the brakes smoothly and evenly. As
you slow down, shift to a lower gear. Be sure that
the engine has sufficiently slowed before engaging
a lower gear. Improper use of the brakes or shift-
ing can cause the tires to lose traction, reducing
control and increasing the possibility of an acci-
dent.
WARNING
_ Make sure the engine has sufficiently slowed
before shifting to a lower gear. Engaging a low-
er gear when the engine speed is too high
could make the wheels stop rotating. This
could cause loss of control, an accident and
injury. It could also cause engine or drive train
damage. _
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6-25
EBU14270
Parking on a slope
WARNING
_ Avoid parking on hills or other inclines. Park-
ing on a hill or other incline could cause the
ATV to roll out of control, increasing the
chance of an accident. If you must park on an
incline, put the machine in low gear, apply the
parking brake, and block the front and rear
wheels with rocks or other objects.
Do not park the ATV at all on hills that are so
steep you could not walk up them easily. _1. Bring the machine to a stop by applying the
front brake.
2. With the front and rear brake applied, pull the
clutch lever, shift into the neutral position,
and then apply the parking brake.
3. Stop the engine by setting the engine stop
switch to “OFF”.
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6-35

Ride more slowly than you would without a
load. The more weight you carry, the slower
you should go. Although conditions vary, it is
good practice not to exceed 2nd gear whenev-
er you are carrying heavier loads or when tow-
ing a trailer.


Allow more braking distance. A heavier vehicle
takes longer to stop.


Avoid making sharp turns unless at very slow
speeds.


Avoid hills and rough terrain. Choose terrain
carefully. Added weight affects the stability and
handling of the ATV.WARNING
_ Never exceed the stated load capacity for this
ATV. Overloading this ATV or carrying or tow-
ing cargo improperly could cause changes in
vehicle handling which could lead to an acci-
dent. Cargo should be properly distributed and
securely attached. Reduce speed when carry-
ing cargo or pulling a trailer. Allow greater dis-
tance for braking. _
U5TG61.book Page 35 Friday, April 2, 2004 11:28 AM

7-5
RIDE WITH CARE AND GOOD JUDGEMENT
Get training if you are inexperienced.
Beginners should get training from a certified in-
structor.
Become familiar with this ATV at slow speeds first,
even if you are an experienced operator. Do not
attempt to operate at maximum performance until
you are totally familiar with the ATV’s handling and
performance characteristics.
WARNING
_ Never operate this ATV without proper instruc-
tion. Beginning and inexperienced operators
should regularly practice the skills and the op-
erating techniques described in this Owner’s
Manual. The risk of an accident is greatly in-
creased if the operator does not know how to
operate the ATV properly in different situations
and on different types of terrain. _
U5TG61.book Page 5 Friday, April 2, 2004 11:28 AM