clutch YAMAHA YFM660R 2002 Manuale de Empleo (in Spanish)

6-11 1. Reverse knob “REV”
2. Shift pedal
1. Bouton de marche arrière “REV”
2. Pédale de sélection
1. Botón de marcha atrás “REV”
2. Pedal del cambio
EBU00816
Reverse knob operation and reverse drivingCAUTION:
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, return
the throttle lever to the closed position, 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 press-
ing 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.
U5LP61.book Page 11 Monday, August 27, 2001 3:49 PM

6-15 1. Shift pedal N. Neutral position
R. Reverse
1. Pédale de sélection N. Point mort
R. Marche arrière
1. Pedal del cambio N. Posición de punto muerto
R. Marcha atrás
EBU00199
Shifting
This model has a 5-speed forward and 1-speed re-
verse transmission. The transmission allows you
to control the amount of power you have available
at a given speed or for starting, accelerating,
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 neutral.CAUTION:_

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 lubricated
when the engine is running. Inadequate lu-
brication may cause damage.


Always use the clutch when changing
gears. The engine, transmission and drive
train are not designed to withstand the
shock of forced shifting and can be dam-
aged by shifting without the clutch.
_
U5LP61.book Page 15 Monday, August 27, 2001 3:49 PM

6-17
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.
U5LP61.book Page 17 Monday, August 27, 2001 3:49 PM

6-19
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.
U5LP61.book Page 19 Monday, August 27, 2001 3:49 PM

6-29
EBU00993
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 lever.
3. With the front and rear brakes applied, apply
the parking brake and slowly release the
brake pedal.
U5LP61.book Page 29 Monday, August 27, 2001 3:49 PM

7-35
With the engine idling, pull the clutch lever to dis-
engage the clutch and shift into 1st gear, and then
release the parking brake. Open the throttle grad-
ually, and at the same time, release the clutch le-
ver slowly. Once the ATV has attained adequate
speed, release the throttle lever and at the 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 coordi-
nate 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 control. Avoid higher speeds un-
til you are thoroughly familiar with the operation of
your ATV.
WARNING
_ Always open the throttle gradually and release
the clutch lever slowly. Otherwise, the ATV
could wheelie which would increase the
chance of an accident. _
U5LP61.book Page 35 Monday, August 27, 2001 3:49 PM

8-8 * It is recommended that these items be serviced by a Yamaha dealer.
** Lithium-soap-based grease
NOTE:

Recommended brake fluid: DOT4


Brake fluid replacement:
1. When disassembling the master cylinder or caliper, replace the brake fluid. Normally check the brake
fluid level and add fluid as required.
2. On the inner parts of the master cylinder and caliper, replace the oil seals every two years.
3. Replace the brake hoses every four years, or if cracked or damaged.
Clutch*•Check operation.
•Adjust if necessary.Wheels*•Check balance/damage/runout.
•Replace if necessary.Wheel bearings*•Check bearing assembly for looseness/damage.
•Replace if damaged.Steering system*•Check operation.
•Repair if damaged.
•Check toe-in.
•Adjust if necessary.Upper and lower arm
pivot and steering
shaft*•Lubricate every 6 months.**Rear arm pivot*•Lubricate every 6 months.**Fittings and fasteners*•Check all chassis fittings and fasteners.
•Correct if necessary.
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
U5LP61.book Page 8 Monday, August 27, 2001 3:49 PM

8-27
11. Add sufficient oil of the recommended type to
raise it to the correct level, and then install
and tighten the oil tank filler cap.CAUTION:_

In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives with the
oil or use oils of a grade “CD” or higher. In
addition, do not use oils labeled “ENERGY
CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_
Recommended engine oil:
See page 10-2.
U5LP61.book Page 27 Monday, August 27, 2001 3:49 PM

8-71 1. Locknut 2. Adjusting bolt
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
1. Locknut 2. Adjusting bolt
a. Cable length
1. Contre-écrou 2. Boulon de réglage
a. Longueur de câble
1. Contratuerca 2. Perno de ajuste
a. Longitud del cable
EBU00953
Parking brake adjustment
Parking brake adjustment may be required if the
parking brake does not hold properly.
1. Fully loosen the parking brake cable adjust-
ing bolt locknut and the adjusting bolt on the
clutch lever.
2. Loosen the adjusting bolt locknut and the ad-
justing bolt on the rear brake caliper.
3. Turn the adjusting bolt on the clutch lever so
that cable length
a is 64 ~ 68 mm.NOTE:If the cable cannot be adjusted to specification,
consult a Yamaha dealer. _4. Tighten the adjusting bolt locknut on the
clutch lever.
U5LP61.book Page 71 Monday, August 27, 2001 3:49 PM

8-77 1. Locknut 2. Adjusting bolt c. Free play
1. Contre-écrou 2. Boulon de réglage c. Jeu
1. Contratuerca 2. Perno de ajuste c. Juego libre
1. Locknut 2. Adjusting nut
1. Contre-écrou 2.Écrou de réglage
1. Contratuerca 2. Tuerca de ajuste
EBU00741
Clutch lever free play adjustment
The clutch lever free play should be adjusted to
5~10mm.
1. Loosen the locknut at the clutch lever.
2. Turn the adjusting bolt at the clutch lever in
direction
a to increase the free play or in di-
rection
b to decrease the free play.
3. Tighten the locknut at the clutch lever.NOTE:If the specified free play cannot be obtained, pro-
ceed with the following steps.4. Loosen the locknut at the clutch lever.
5. Turn the adjusting bolt at the clutch lever in
direction
a to loosen the cable.
6. Loosen the locknut at the crankcase side.
7. Turn the adjusting nut at the crankcase in di-
rection
a to increase the free play or in direc-
tion
b to decrease the free play.
8. Tighten the locknut at the crankcase and the
clutch lever.
U5LP61.book Page 77 Monday, August 27, 2001 3:49 PM