2006 YAMAHA YFZ450 brakes

8-85
EBU16070
Brake fluid level inspection
Insufficient brake fluid may let air enter the
brake system, possibly causing the brakes to
become ineffective.
Before riding, check that the brake fluid is above
the minimum level mark and replenish if neces-
sary. A low brake fluid level may indicate worn
brake pads and/or brake system leakage. If the
brake fluid level is low, be sure to check the
brake pads for wear and the brake system for
leakage.
1. Minimum level mark 1. Repère de niveau minimum 1. Marca de mínimo
FrontAvantDelantero
1
1. Minimum level mark 1. Repère de niveau minimum 1. Marca de mínimo
RearArrièreTrasero
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8-93
EBU11880
Front brake lever free play
The front brake lever should have a free play of
zero mm at the lever end. If not, have a Yamaha
dealer check the brake system.
w
Operating with improperly serviced or
adjusted brakes could cause loss of braking
ability which could lead to an accident.
After servicing:
8Make sure the brakes operate smoothly
and that the free play is correct.
8Make sure the brakes do not drag.
8Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
a. Brake lever free play a. Jeu du levier de freina. Juego de la palanca de freno
5TG-9-62 8 5/13/05 1:48 PM Page 8-93

8-95
EBU10790
Brake pedal height adjustment
The top of the brake pedal should be positioned
15.3 mm below the top of the footrest. If not,
have a Yamaha dealer adjust it.
w
Operating with improperly serviced or
adjusted brakes could cause loss of braking
ability, which could lead to an accident.
After servicing:
8Make sure the brakes operate smoothly
and that the brake pedal position is cor-
rect.
8Make sure the brakes do not drag.
8Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
a
a. Brake pedal positiona. Hauteur de la pédale de freina. Altura del pedal del freno
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8-99
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 lock-
nut to the specified torque.
cC
When tightening the locknut, hold the adjust-
ing bolt with a wrench so that the adjusting
bolt does not turn together with the locknut.
w
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
accident. 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 m0kgf)
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9-3
cC
Excessive water pressure may cause water
seepage and deterioration of wheel bearings,
brakes, transmission seals and electrical
devices. Many expensive repair bills have
resulted from improper high pressure deter-
gent applications such as those available in
coin-operated car washers.
4. Once the majority of the dirt has been
hosed off, wash all surfaces with warm
water and mild, detergent-type soap. An
old toothbrush or bottle brush is handy for
hard-to-get-at places.
5. Rinse the machine off immediately with
clean water and dry all surfaces with a
chamois, clean towel or soft absorbent
cloth.
6. Dry the chain and lubricate it to prevent
rust.
7. Clean the seat with a vinyl upholstery
cleaner to keep the cover pliable and
glossy.
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9-5
8. Automotive type wax may be applied to all
painted and chrome plated surfaces.
Avoid combination cleaner-waxes. Many
contain abrasives which may mar the paint
or protective finish.
When finished, start the engine and let it
idle for several minutes.
w
Wet brakes may have reduced stopping abili-
ty, increasing the chance of an accident.
Test the brakes after washing. Apply the
brakes several times at slow speeds to let
friction dry out the linings.
5TG-9-62 9-11 5/12/05 6:14 PM Page 9-5