torque YAMAHA YFM660R 2001 Notices Demploi (in French)

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A. Spring length
A. Longueur du ressort
A. Longitud del muelle
3. The length of the spring (installed) chang-
es 1 mm per turn of the adjusting ring.
4. Tighten the locknut to the specified
torque.
CAUTION:
Always tighten the locknut against the spring
adjusting ring, then torque it to specification. Measurement “A”:
Installed length:
Minimum (hard): 245 mm
Standard: 253 mm
Maximum (soft): 260 mm
Tightening torque:
42 Nm (4.2 m·kg)

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Throttle lever
Check to see that the throttle lever operates
correctly. It must open smoothly and spring
back to idle position when released. Repair as
necessary for proper operation.
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Fittings and Fasteners
Always check the tightness of chassis fittings
and fasteners before a ride. Take the machine
to a Yamaha dealer or refer to the Service Man-
ual for correct tightening torque.
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Lights
Check the headlight and tail/brake light to
make sure they are in working condition. Re-
pair as necessary for proper operation.
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Switches
Check the operation of the headlight switch,
engine stop switch and any other switches. Re-
pair as necessary for proper operation.

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1. Owner’s manual
2. Owner’s tool kit
3. Low-pressure tire gauge
1. Manuel du propriétaire
2. Trousse à outils
3. Manomètre basse pression pour pneus
1. Manual del propietario
2. Equipo de herramientas
3. Manómetro de baja presión
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Owner’s manual and tool kit
You are recommended to put this owner’s
manual and low-pressure tire gauge in the vi-
nyl bag and always carry them along with the
owner’s tool kit under the seat. The service in-
formation included in this manual is intended
to provide you, the owner, with the necessary
information for completing your own preven-
tive maintenance and minor repairs. The tools
provided in the Owner’s tool kit are sufficient
for this purpose, except that a torque wrench is
also necessary to properly tighten nuts and
bolts.
NOTE:
If you do not have a torque wrench available
during a service operation requiring one, take
your machine to a Yamaha dealer to check the
torque settings and adjust them as necessary.

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1. Engine oil filter cartridge
2. Oil filter wrench
1. Cartouche du filtre à huile de moteur
2. Clé pour filtre à huile
1. Cartucho del filtro de aceite de motor
2. Llave para filtros de aceite
7. Remove the oil filter cartridge with an oil
filter wrench.
NOTE:
An oil filter wrench is available at a nearby
Yamaha dealer.
8. Install a new oil filter cartridge and tighten
it to the specified torque with an oil filter
wrench.
9. Install the crankcase engine oil drain bolt
and the engine oil tank drain bolt, then
tighten them to the specified torques. Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kg)
Tightening torques:
Crankcase engine oil drain bolt:
30 Nm (3.0 m·kg)
Engine oil tank drain bolt:
25 Nm (2.5 m·kg)

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6. Disconnect the hose on the coolant reser-
voir side, and then drain the coolant from
the coolant reservoir.
7. After draining the coolant, thoroughly
flush the cooling system with clean tap
water.
8. Replace the coolant drain bolt washer if it
is damaged, and then tighten the coolant
drain bolt to the specified torque.
9. Install the coolant reservoir hose.
10. Pour the recommended coolant into the
radiator until it is full. Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kg)
1. Hose
1. Flexible
1. Manguera

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a. Spark plug gap
a. Écartement des électrodes
a. Separación entre electrodos de la bujía
Before installing the spark plug, measure the
electrode gap with a feeler gauge and adjust to
specification.
When installing the spark plug, always clean
the gasket surface and use a new gasket. Wipe
off any grime from the threads and tighten to
the specified torque.Spark plug gap:
0.8 ~ 0.9 mm
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kg)

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5. Screw in the adjusting bolt on the brake
caliper by hand until it feels tight, then
screw it out 1/8 turn. Tighten the adjusting
bolt locknut to the specified torque.
WARNING
Operating with improperly adjusted brakes
could cause the brakes to malfunction result-
ing in reduced braking performance. This
could increase the chance of a collision or acci-
dent. After adjusting the parking brake, block
the rear of the machine off the ground and
spin the rear wheels. Check to make sure there
is no brake drag. If brake drag is noticed, per-
form the adjustment again. Tightening torque:
16 Nm (1.6 m·kg)

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Drive chain slack adjustment
1. Loosen the rear wheel hub upper and low-
er nuts.
2. Loosen the adjusting bolt locknuts on
each side of the swingarm. To tighten the
drive chain, turn the adjusting bolts in di-
rectiona. To loosen the drive chain, turn
the adjusting bolts in direction b and
push the wheels forward. Turn each ad-
justing bolt exactly the same amount to
maintain correct axle alignment.
There are alignment marks on each side of the
swingarm and on the hub. Use them to check
for proper wheel axle alignment.
3. After adjusting, tighten the locknuts and
the wheel hub nuts to the specified
torques.
Tightening torques:
Locknut:
16 Nm (1.6 m·kg)
Upper wheel hub nut:
90 Nm (9.0 m·kg)
Lower wheel hub nut:
90 Nm (9.0 m·kg)
1. Upper wheel hub nut 2. Lower wheel hub nut
1. Écrou supérieur de moyeu de roue
2. Écrou inférieur de moyeu de roue
1. Tuerca superior del buje de la rueda
2. Tuerca inferior del buje de la rueda
1. Locknut (× 2) 2. Adjusting bolt (× 2)
3. Alignment marks (× 2)
1. Contre-écrou (× 2) 2. Boulon de réglage (× 2)
3. Repères d’alignement (× 2)
1. Contratuerca (× 2) 2. Perno de ajuste (× 2)
3. Marcas de alineación (× 2)

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Wheel installation
When installing a wheel, reverse the removal
procedure.
NOTE:
When installing a front wheel, the arrow
mark on the tire must point toward the
rotating direction of the wheel.
When installing a rear wheel, the wording
on the tire “SIDE FACING OUTWARDS”
must be facing outwards.
Tighten the wheel nuts to the specified torque.
Wheel nut torque:
Front: 45 Nm (4.5 m·kg)
Rear: 45 Nm (4.5 m·kg)
1. Arrow mark
1. Flèche
1. Flecha
1. “SIDE FACING OUTWARDS”
1. Inscription “SIDE FACING OUTWARDS”
1. “SIDE FACING OUTWARDS”

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HOW TO USE THE CONVERSION TABLE
All specification data in this manual are listed
in SI and METRIC UNITS.
Use this table to convert METRIC unit data to
IMPERIAL unit data.
Ex.
CONVERSION TABLE
METRIC MULTIPLIER IMPERIAL
**mm
× 0.03937 = **in
2 mm
× 0.03937 = 0.08 in
METRIC TO IMPERIAL
Metric unit Multiplier Imperial unit
Torquem·kg
m·kg
cm·kg
cm·kg7.233
86.794
0.0723
0.8679ft·lb
in·lb
ft·lb
in·lb
Weightkg
g2.205
0.03527lb
oz
Speed km/hr 0.6214 mph
Distancekm
m
m
cm
mm0.6214
3.281
1.094
0.3937
0.03937mi
ft
yd
in
in
Volume /
Capacitycc (cm
3)
cc (cm3)
lt (liter)
lt (liter)0.03527
0.06102
0.8799
0.2199oz (IMP liq.)
cu·in
qt (IMP liq.)
gal (IMP liq.)
Misc.kg/mm
kg/cm
2
Centigrade
(

°C)55.997
14.2234
9/5 + 32 lb/in
psi (lb/in
2)
Fahrenheit (

°F)