2005 YAMAHA YFZ450 lock

8-63 1. Projection (× 4) 2. Slot (× 4)
1. Saillie (× 4) 2. Fente (× 4)
1. Saliente (× 4) 2. Ranura (× 4)
7. Place the panel in the original position.
8. Install the fuel tank cap by turning it clock-
wise.
9. Install the bolts and the quick fastener
screws.
10. Install the seat.
U5TG61.book Page 63 Friday, April 2, 2004 11:28 AM

8-77 1. Locknut 2. Adjusting bolt
a. Throttle lever free play
1. Contre-écrou 2. Boulon de réglage
a. Jeu du levier d’accélération
1. Contratuerca 2. Perno de ajuste
a. Juego libre de la palanca del acelerador
EBU03070
Throttle lever adjustmentNOTE:_ Adjust the engine idling speed before adjusting the
throttle lever free play. _1. Loosen the locknut.
2. Turn the adjusting bolt until the throttle lever
free play is 2–4 mm.
3. Tighten the locknut.
U5TG61.book Page 77 Friday, April 2, 2004 11:28 AM

8-85 1. Brake fluid reservoir cover 2. Bolt (× 2)
1. Cache du réservoir de liquide de frein
2. Boulon (× 2)
1. Cubierta del depósito de líquido de frenos
2. Perno (× 2)
Observe these precautions:

When checking the brake fluid level, make sure
the top of the brake fluid reservoir is level.


Use only the designated quality brake fluid, oth-
erwise, the rubber seals may deteriorate, caus-
ing leakage and poor brake performance.


Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reaction
and lead to poor brake performance.


Be careful that water does not enter the brake
fluid reservoir when refilling. Water will signifi-
cantly lower the boiling point of the fluid and
may result in vapor lock.


Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately.


Have a Yamaha dealer check the cause if the
brake fluid level goes down. Recommended brake fluid: DOT 4
U5TG61.book Page 85 Friday, April 2, 2004 11:28 AM

8-93 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 nut
1. Contre-écrou 2.Écrou de réglage
1. Contratuerca 2. Tuerca de ajuste
EBU14160
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 56–60 mm.
1. Loosen the locknut and the adjusting nut on
the brake cable below the fuel tank.
2. Fully loosen the locknut and the adjusting bolt
at the rear brake caliper.
3. Turn the adjusting nut on the brake cable 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 on the brake cable.
U5TG61.book Page 93 Friday, April 2, 2004 11:28 AM

8-95
5. Screw in the adjusting bolt at the rear brake
caliper by hand until it feels tight, then screw it
out 1/8 turn. Tighten the locknut to the speci-
fied torque.CAUTION:_ When tightening the locknut, hold the adjust-
ing bolt with a wrench so that the adjusting
bolt does not turn together with the locknut. _
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 ac-
cident. 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, perform
the adjustment again. _
Tightening torque:
Locknut:
16 Nm (1.6 m·kgf)
U5TG61.book Page 95 Friday, April 2, 2004 11:28 AM

8-99 1. Adjusting nut c. Clutch lever free play
1.Écrou de réglage c. Jeu du levier d’embrayage
1. Tuerca de ajuste
c. Juego libre de la palanca del embrague
1. Locknut 2. Adjusting nut
1. Contre-écrou 2.Écrou de réglage
1. Contratuerca 2. Tuerca de ajuste
EBU14210
Clutch lever free play adjustment
The clutch lever free play should be adjusted to 8–
13 mm.
1. Fully turn the adjusting nut at the clutch lever
in direction
a to increase the free play or in
direction
b to decrease the free play.
If the specified free play cannot be obtained, pro-
ceed with the following steps.
2. Turn the adjusting nut at the clutch lever in di-
rection
a to loosen the cable.
3. Loosen the locknut at the crankcase side.
4. 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.
5. Tighten the locknut at the crankcase side.
U5TG61.book Page 99 Friday, April 2, 2004 11:28 AM

8-103 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 cubo de la rueda
2. Tuerca inferior del cubo de la rueda
1. Adjusting bolt (× 2) 2. Locknut (× 2)
3. Alignment marks
1. Boulon de réglage (× 2) 2. Contre-écrou (× 2)
3. Repères d’alignement
1. Perno de ajuste (× 2) 2. Contratuerca (× 2)
3. Marcas de alineación
EBU11940
Drive chain slack adjustment
1. Loosen the rear wheel hub upper and lower
nuts.
2. Loosen the locknuts on each side of the swin-
garm. To tighten the drive chain, turn the ad-
justing bolts in direction
a. To loosen the
drive chain, turn the adjusting bolts in direc-
tion
b and push the wheels forward. Turn
each adjusting bolt exactly the same amount
to maintain correct axle alignment.
U5TG61.book Page 103 Friday, April 2, 2004 11:28 AM

8-105
NOTE:_ 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·kgf)
Upper wheel hub nut:
85 Nm (8.5 m·kgf)
Lower wheel hub nut:
85 Nm (8.5 m·kgf)
U5TG61.book Page 105 Friday, April 2, 2004 11:28 AM