2001 YAMAHA YFM660R clutch

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CAUTION:
Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled “Energy Conserving”) con-
tain anti-friction additives which will cause
clutch and/or starter clutch slippage, resulting
in reduced component life and poor engine
performance.
Oil quantity:
Total amount:
2.3 L
With oil filter cartridge replacement:
1.95 L
Periodic oil change:
1.9 L

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1. Fully open 2. Half open
3. Closed
1. Complètement ouvert 2. Mi-ouvert
3. Fermé
1. Abre completamente 2. Semiabierto
3. Cerrado
NOTE:
This model is equipped with an ignition circuit
cut-off system. The engine can be started un-
der the following conditions.


When the transmission is in neutral. The
neutral indicator light should come on. If
the light does not come on, ask a Yamaha
dealer to inspect it.


When the clutch is disengaged with the
transmission in any position. However, it
is recommended to shift into neutral be-
fore starting the engine.
5. Use the starter (choke) in reference to the
figure:
Position
1: Cold engine start-
ambient temperature below 5 ˚C.
Position
2: Cold engine start-
ambient temperature at 0 ˚C ~
30˚C and warming up position.
Position
3: Cold engine start-
ambient temperature above
25˚C and warm engine start po-
sition.

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EBU00816
Reverse knob operation and reverse driving
CAUTION:
Before shifting, stop the machine and return
the throttle lever to its closed position. Other-
wise the transmission may be damaged.
1. Bring the machine to a complete stop, re-
turn the throttle lever to the closed posi-
tion, apply the clutch lever, and shift the
transmission into first gear.
2. While applying the rear brake pedal, turn
the reverse knob clockwise with your right
hand.
3. Shift the transmission into reverse by
pressing down on the shift pedal.
NOTE:
When in reverse, the reverse indicator light
should be on. If the light does not come on, ask
a Yamaha dealer to inspect the machine.
1. Reverse knob
2. Shift pedal
1. Bouton de marche arrière
2. Pédale de sélection
1. Botón de marcha atrás
2. Pedal del cambio

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1. Shift pedal N. Neutral
R. Reverse
1. Pédale de sélection N. Point mort
R. Marche arrière
1. Pedal del cambio N. Punto muerto
R. Marcha atrás
EBU00199
Shifting
This model has a 5-speed forward and 1-speed
reverse transmission. The transmission allows
you to control the amount of power you have
available at a given speed or for starting, accel-
erating, climbing hills, etc. To shift into neutral,
return the throttle lever to its original position,
apply the clutch and repeatedly depress the
shift pedal until it stops. When it stops, it will
be in first gear. Raise the pedal slightly to neu-
tral.
CAUTION:
1. Do not coast for long periods with the en-
gine off, and do not tow the machine a
long distance. Even in neutral position,
the transmission is only properly lubricat-
ed when the engine is running. Inade-
quate lubrication may cause damage.
2. Always use the clutch when changing
gears. The engine, transmission and driv-
etrain are not designed to withstand the
shock of forced shifting and can be dam-
aged by shifting without the clutch.

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EBU00204
To start out and accelerate:
1. Release the throttle lever.
CAUTION:
Always close the throttle while shifting gears.
Otherwise, damage to the engine and drive
train may result.
2. Pull the clutch lever to disengage the
clutch.
3. Shift into first gear.
4. Open the throttle gradually and at the
same time, release the clutch lever slowly.
5. Once the machine has attained adequate
speed, release the throttle, and at the
same time, quickly pull in the clutch lever.

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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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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.

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With the engine idling, pull the clutch lever to
disengage the clutch and shift into 1st gear,
and then release the parking brake. Open the
throttle gradually, and at the same time, re-
lease the clutch lever slowly. Once the ATV has
attained adequate speed, release the throttle
lever and at same time, quickly pull in the
clutch lever and shift into 2nd gear. Open the
throttle part way and gradually release the
clutch. Use this same procedure as you move
into the higher gears. Be sure to coordinate the
use of the throttle and shift pedal properly. If
the throttle is applied too abruptly or if the
throttle is not released during shifting, or if the
shift pedal is not released before applying the
throttle, the front wheels may lift off the
ground resulting in a loss of directional con-
trol. Avoid higher speeds until you are thor-
oughly familiar with the operation of your ATV.
WARNING
Always open the throttle gradually and re-
lease the clutch lever slowly. Otherwise, the
machine could wheelie which would increase
the chance of an accident.