Yamaha YZ450FX 2023, Owner'S Manual

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SAFETY INFORMATION
1-2
dents are the result of head injuries. The use of
a safety helmet is the single most critical factor
in the prevention or reduction of head injuries.
1. Always wear an approved helmet.
2. Wear a face shield or goggles. Wind in your
unprotected eyes could contribute to an im-
pairment of vision that could delay seeing a
hazard.
3. The use of a jacket, heavy boots, trousers,
gloves, etc., is effective in preventing or re-
ducing abrasions or lacerations.
4. Never wear loose-fitting clothes, otherwise
they could catch on the control levers, foot-
rests, or wheels and cause injury or an acci-
dent.
5. Always wear protective clothing that covers
your legs, ankles, and feet. The engine or ex-
haust system become very hot during or after
operation and can cause burns.
Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon monoxide, a
deadly gas. Breathing carbon monoxide can
cause headaches, dizziness, drowsiness, nau-
sea, confusion, and eventually death.
Carbon Monoxide is a colorless, odorless, taste-
less gas which may be present even if you do
not see or smell any engine exhaust. Deadly lev-
els of carbon monoxide can collect rapidly and
you can quickly be overcome and unable to save
yourself. Also, deadly levels of carbon monoxide
can linger for hours or days in enclosed or poorly
ventilated areas. If you experience any symp-
toms of carbon monoxide poisoning, leave the
area immediately, get fresh air, and SEEK MED-
ICAL TREATMENT.
1. Do not run engine indoors. Even if you try to
ventilate engine exhaust with fans or open
windows and doors, carbon monoxide can
rapidly reach dangerous levels.
2. Do not run engine in poorly ventilated or par-
tially enclosed areas such as barns, garages,
or carports.
3. Do not run engine outdoors where engine ex-
haust can be drawn into a building through
openings such as windows and doors.
Genuine Yamaha Accessories
Choosing accessories for your vehicle is an im-
portant decision. Genuine Yamaha accessories,
which are available only from a Yamaha dealer,
have been designed, tested, and approved by
Yamaha for use on your vehicle.
Many companies with no connection to Yamaha
manufacture parts and accessories or offer oth-
er modifications for Yamaha vehicles. Yamaha
is not in a position to test the products that these
aftermarket companies produce. Therefore,
Yamaha can neither endorse nor recommend
the use of accessories not sold by Yamaha or
modifications not specifically recommended by
Yamaha, even if sold and installed by a Yamaha
dealer.
Aftermarket Parts, Accessories, and Modifi-
cations
While you may find aftermarket products similar
in design and quality to genuine Yamaha acces-
sories, recognize that some aftermarket acces-
sories or modifications are not suitable because
of potential safety hazards to you or others. In-
stalling aftermarket products or having other
modifications performed to your vehicle that
change any of the vehicle’s design or operation
characteristics can put you and others at greater
risk of serious injury or death. You are responsi-
ble for injuries related to changes in the vehicle.
Keep the following guidelines in mind, as well as
those provided under “Loading” when mounting
accessories.
1. Never install accessories that would impair
the performance of your motorcycle. Careful-
ly inspect the accessory before using it to
make sure that it does not in any way reduce
ground clearance or cornering clearance, lim-
it suspension travel, steering travel or control
operation.
•
Accessories fitted to the handlebar or the
front fork area can create instability due to im-
proper weight distribution. If accessories are
added to the handlebar or front fork area,
they must be as lightweight as possible and
should be kept to a minimum.
•
Bulky or large accessories may seriously af-
fect the stability of the motorcycle. Wind may
attempt to lift the motorcycle, or the motorcy-
cle may become unstable in cross winds.
•
Certain accessories can displace the opera-
tor from his or her normal riding position. This
improper position limits the freedom of move-
ment of the operator and may limit control
ability, therefore, such accessories are not
recommended.
2. Use caution when adding electrical accesso-
ries. If electrical accessories exceed the ca-
pacity of the motorcycle’s electrical system,
an electric failure could result, which could
cause a dangerous loss of lights or engine
power.