2001 YAMAHA YFM660R warning

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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 un-
der pressure. Always put a thick rag over the
cap when opening. Allow any remaining pres-
sure to escape before completely removing
the cap.
EBU00498
Chain
Check the general condition of the chain and
check the chain slack before every ride. Lubri-
cate and adjust the chain as necessary. (See
pages 8-77 ~ 8-83 for details.)

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EBU00158
Tires
Always use the recommended tires.
WARNING
Use of improper tires on this ATV, or opera-
tion of this ATV with improper or uneven tire
pressure, may cause loss of control, increasing
your risk of accident.
Pay attention to the following.
1. The tires listed below have been ap-
proved by Yamaha Motor Co., Ltd. for this
model. Other tire combinations are not
recommended.
Manufacturer Size Type
Front DUNLOP AT21 × 7-10 KT331
Rear DUNLOP AT20 × 10-9 KT335

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EBU00162
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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EBU00815
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. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON” and the en-
gine stop switch to “ ”.
4. Shift the transmission into neutral.

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4. Check behind you for people or obstacles,
then release the rear brake pedal.
5. Open the throttle lever gradually and con-
tinue to watch to the rear while backing.
WARNING
Improper operation in reverse could make you
hit an obstacle or person behind you, resulting
in serious injury. When you shift into reverse,
make sure there are no obstacles or people be-
hind you. When it is safe to proceed, go slowly.

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6. Shift into second gear (be careful not to
shift into neutral).
7. Open the throttle part way and gradually
release 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 lever gradually.

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EBU00208
To decelerate:
When slowing down or stopping, release the
throttle 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. Improp-
er use of the brakes or shifting can cause the
tires to lose traction, reducing control and in-
creasing the possibility of an accident.
WARNING
Make sure the engine has sufficiently slowed
before shifting to a lower gear. Engaging a
lower gear when the engine speed is too high
could make the wheels stop rotating. This
could cause loss of control, an accident and in-
jury. It could also cause engine or drive train
damage.

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EBU00214
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 brakes in low gear.
2. Stop the engine and release the clutch le-
ver.
3. With the front and rear brakes applied, ap-
ply the parking brake and slowly release
the rear brake pedal.