clutch YAMAHA YFM660R 2004 Notices Demploi (in French)

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
EBU12102
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 then shift the transmis-
sion into first gear.
2. While applying the brake pedal, turn the re-
verse knob clockwise with your right hand.
3. Apply the clutch lever and shift the transmis-
sion 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. _
U5LP63.book Page 11 Monday, March 10, 2003 2:06 PM

6-13
4. Check behind you for people or obstacles,
and then release the brake pedal.
5. Open the throttle lever gradually, and at the
same time, release the clutch lever slowly,
and continue to watch to the rear while back-
ing.
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. _
U5LP63.book Page 13 Monday, March 10, 2003 2:06 PM

6-15 1. Shift pedal N. Neutral position
R. Reverse position
1. Pédale de sélection N. Point mort
R. Marche arrière
1. Pedal del cambio N. Posición de punto muerto
R. Posición de marcha atrás
EBU01173
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 the closed 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.
_
U5LP63.book Page 15 Monday, March 10, 2003 2:06 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.
U5LP63.book Page 17 Monday, March 10, 2003 2:06 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.
U5LP63.book Page 19 Monday, March 10, 2003 2:06 PM

6-29
EBU01175
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 rear brake applied, apply the parking
brake and slowly release the brake pedal.
U5LP63.book Page 29 Monday, March 10, 2003 2:06 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. _
U5LP63.book Page 35 Monday, March 10, 2003 2:06 PM

8-7
EBU00262
PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
Valves*• Check valve clearance.
 Adjust if necessary.
Cooling system Check coolant leakage.
 Repair if necessary.
 Replace coolant every 24 months.Spark plug Check condition.
 Adjust gap and clean.
 Replace if necessary.Air filter element Clean.
 Replace if necessary.Every 20–40 hours
(More often in wet or dusty areas.)
Carburetor* Check starter (choke) operation.
 Adjust engine idling speed.Crankcase breather
system* Check breather hose for cracks or damage.
 Replace if necessary.Exhaust system* Check for leakage.
 Tighten if necessary.
 Replace gasket if necessary.Fuel line* Check fuel hose for cracks or damage.
 Replace if necessary.Engine oil
 Replace. (Warm engine before draining.)Engine oil filter cartridge
 Replace.Drive chain
 Check and adjust slack/alignment/clean/lube.Front brake* Check free play/operation/fluid leakage/
See NOTE Page 8-8.
 Correct if necessary.Rear brake* Check operation/fluid leakage/See NOTE Page 8-8.
 Correct if necessary.Clutch* Check operation.
 Adjust if necessary.Wheels* Check balance/damage/runout.
 Replace if necessary.E-8.fm Page 7 Tuesday, March 11, 2003 2:06 PM

8-29
CAUTION:_

In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives. Do not
use oils with a diesel specification of “CD”
or oils of a higher quality than specified. 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.
Oil quantity:
Periodic oil change:
1.9 L
With oil filter cartridge replacement:
1.95 L
Total amount:
2.3 L
U5LP63.book Page 29 Monday, March 10, 2003 2:06 PM

8-75 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
1. Locknut 2. Adjusting bolt
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
EBU01192
Parking brake adjustment
Parking brake adjustment may be required if the
parking brake does not hold properly. The cable
length
A should be adjusted to 64–68 mm.
1. Fully loosen the locknut and the adjusting bolt
at the clutch lever.
2. Loosen the locknut and the adjusting bolt at
the rear brake caliper.
3. Turn the adjusting bolt at the clutch lever in
direction
a to increase the cable length or in
direction
b to decrease the cable length.NOTE:_ If the cable cannot be adjusted to specification,
consult a Yamaha dealer. _4. Tighten the locknut at the clutch lever.
U5LP63.book Page 75 Monday, March 10, 2003 2:06 PM