brake YAMAHA YZF600 2000 User Guide

PERIODIC MAINTENANCE AND MINOR REPAIR
6-24
6
EW000109
WARNING
@ A soft or spongy feeling in the brake
pedal can indicate the presence of
air in the brake system. This air
must be removed by bleeding the
brake system before the motorcycle
is operated. Air in the system will
cause greatly diminished braking
capability and can result in loss of
control and an accident. Have a
Yamaha dealer inspect and bleed
the system if necessary. @
EAU00713
Brake light switch adjustmentThe rear brake light switch is activated
by the brake pedal and is properly ad-
justed when the brake light comes on
just before braking takes effect. To ad-
just the rear brake light switch, hold the
switch body so it does not rotate while
turning the adjusting nut. Turn the ad-
justing nut in direction a
to make the
brake light come on earlier.
Turn the adjusting nut in direction b
to
make the brake light come on later.1. Brake light switch
2. Adjusting nut
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-25
6
EAU00715
Checking the front and rear
brake padsA wear indicator is provided on each
brake. This indicator allows checking of
brake pad wear without disassembling
the brake. Apply the brake and inspect
the wear indicator. If the indicator is
ALMOST in contact with the disc plate,
ask a Yamaha dealer to replace the
pads.
EAU00731
Inspecting the brake fluid
levelInsufficient 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 and replen-
ish when necessary.
Observe these precautions:l
When checking the fluid level,
make sure the top of the master
cylinder is level by turning the han-
dlebars.
1. Wear indicator (´ 2)Front
1. Wear indicator (´ 2)Rear
1. Minimum level mark
2. Maximum level markFront
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-26
6
l
Use only the designated quality
brake fluid. Otherwise, the rubber
seals may deteriorate, causing
leakage and poor brake perfor-
mance.
l
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor brake performance.
l
Be careful that water does not en-
ter the master cylinder when refill-
ing. Water will significantly lower
the boiling point of the fluid and
may result in vapor lock.
l
Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.
l
Have a Yamaha dealer check the
cause if the brake fluid level goes
down.
EAU00742
Brake fluid replacementThe brake fluid should be replaced only
by trained Yamaha service personnel.
Have the Yamaha dealer replace the
following components during periodic
maintenance or when they are dam-
aged or leaking:l
oil seals (every two years)
l
brake hoses (every four years)
1. Minimum level markRecommended brake fluid: DOT 4Rear
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6
EAU02984
Brake and shift pedal
lubricationLubricate the pivoting parts.
EAU02985
Brake and clutch lever
lubricationLubricate the pivoting parts.
EAU02986
Sidestand lubricationLubricate the sidestand pivoting point
and metal-to-metal contact surfaces.
Check that the sidestand moves up
and down smoothly.
EW000113
WA R N I N G
@ If the sidestand does not move
smoothly, consult a Yamaha dealer. @
Recommended lubricant:
Engine oil
Recommended lubricant:
Engine oil
Recommended lubricant:
Engine oil
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6
EAU00790
Rear suspension lubricationLubricate the pivoting parts.
EAU02939
Front fork inspectionVisual check
EW000115
WA R N I N G
@ Securely support the motorcycle so
there is no danger of it falling over. @Check for scratches or damage on the
inner tube and excessive oil leakage
from the front fork.
Operation check
1. Place the motorcycle on a level
place.
2. Hold the motorcycle in an upright
position and apply the front brake.
3. Push down hard on the handle-
bars several times and check if the
fork rebounds smoothly.
EC000098
CAUTION:@ If any damage or unsmooth move-
ment is found with the front fork,
consult a Yamaha dealer. @
Recommended lubricant:
Molybdenum disulfide grease
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAU01623*
Tail/brake light bulb
replacement1. Remove the screws and the lens.
2. Remove the defective bulb by
pushing it inward and turning it
counterclockwise.
3. Install a new bulb by pushing it in-
ward and turning it clockwise.
4. Install the lens and tighten the
screws.
EC000108
CAUTION:@ Do not over-tighten the screws as
the lens may break. @
EAU01095
Turn signal light bulb
replacement1. Remove the screw and the lens.
2. Remove the defective bulb by
pushing it inward and turning it
counterclockwise.
3. Install a new bulb by pushing it in-
ward and turning it clockwise.
4. Install the lens and tighten the
screw.
EAU01252*
Front wheel removal
EW000122
WA R N I N G
@ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so there is no danger of it
falling over.
@1. Remove the speedometer cable
from the front wheel side.
2. Remove the front fender bolts and
front fender.
1. Screw (´ 2)
1. Screw
1. Speedometer cable
2. Front fender bolt (´ 4)
3. Front fender
4. Caliper bolt (´ 2)
5. Brake hose holder
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6 3. Loosen the pinch bolt, wheel axle
and caliper bolts.
4. Elevate the wheel.
5. Remove the brake hose holders
and calipers.
NOTE:@ Do not depress the brake lever when
the calipers are off the discs as the
brake pads will be forced shut. @6. Remove the wheel axle and
speedometer gear unit. Make sure
the motorcycle is properly support-
ed.
EAU01469*
Front wheel installation1. Install the speedometer gear unit
into the wheel hub. Make sure the
wheel hub and the speedometer
gear unit are installed with the pro-
jections meshed into the slots.
2. Lift up the wheel between the front
fork legs. Make sure the slot in the
speedometer gear unit fits over
the stopper on the front fork outer
tube.
3. Install the wheel axle and let the
motorcycle down.4. Install the calipers, caliper bolts
and brake hose holders. Make
sure there is enough gap between
the brake pads before installing
the calipers onto the brake discs.
5. Tighten the wheel axle, pinch bolt
and caliper bolts to the specified
torques.
6. Push down hard on the handle-
bars several times to check for
proper fork operation.
7. Install the speedometer cable.
8. Install the front fender and bolts.
1. Pinch bolt
2. Wheel axle
3. Caliper bolt (´ 2)
1. Speedometer gear unit
2. Slot
3. Stopper
Tightening torque:
Wheel axle:
65 Nm (6.5 m·kg)
Pinch bolt:
23 Nm (2.3 m·kg)
Caliper bolt:
40 Nm (4.0 m·kg)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU01247*
Rear wheel removal
EW000122
WARNING
@ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so there is no danger of it
falling over.
@
1. Loosen the wheel axle nut, brake
torque rod bolt and caliper bolts.
2. Elevate the wheel.
3. Remove the wheel axle nut, left
wheel axle guide and caliper bolts,
and then remove the caliper.4. Loosen the locknuts and drive
chain adjusting nuts.
5. Push the wheel forward and re-
move the drive chain.
1. Wheel axle nut
2. Left wheel axle guide
3. Locknut (´ 2)
4. Drive chain adjusting nut (´ 2)
5. Wheel axle
1. Brake torque rod bolt
1. Caliper bolt (´ 2)
2. Right wheel axle guide
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6 6. Pull out the wheel axle along with
the right wheel axle guide, remove
the caliper bracket, and then the
wheel assembly by pulling back-
wards.
NOTE:@ l
Do not depress the brake pedal
when the caliper is off the disc as
the brake pads will be forced shut.
l
You do not have to disassemble
the chain in order to remove or in-
stall the wheel.
@
EAU01246*
Rear wheel installation1. Install the wheel assembly, right
wheel axle guide, caliper bracket,
and then insert the wheel axle.
2. Install the caliper and caliper bolts.
Make sure there is enough gap
between the brake pads before in-
stalling the caliper onto the brake
disc.
3. Tighten the brake torque rod bolt
to the specified torque.
4. Install and adjust the drive chain.
(See page 6-27 for details about
adjusting the drive chain slack.)5. Install the left wheel axle guide
and wheel axle nut and let the
motorcycle down.
6. Tighten the wheel axle nut and
caliper bolts to the specified
torques.
1. Caliper bracket
Tightening torque:
Brake torque rod bolt:
30 Nm (3.0 m·kg)
Axle nut:
117 Nm (11.7 m·kg)
Caliper bolt:
40 Nm (4.0 m·kg)
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MOTORCYCLE CARE AND STORAGE
7-2
7
ECA00010
CAUTION:@ l
Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If you do use such
products for hard-to-remove
dirt, do not leave it on any long-
er than instructed, then thor-
oughly rinse it off with water,
immediately dry the area and
apply a corrosion protection
spray.
l
Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use
only a soft, clean cloth or
sponge with mild detergent and
water to clean plastic.
l
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.
l
Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel bearings,
swingarm bearings, forks and
brakes), electric components
(couplers, connectors, instru-
ments, switches and lights),
breather hoses and vents.
l
For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the wind-
shield. Test the product on a
small hidden part of the wind-
shield to make sure they do not
leave any marks. If the wind-
shield is scratched, use a quali-
ty plastic polishing compound
after washing.
@After riding in the rain, near the sea oron salt-sprayed roadsSince sea salt or salt sprayed on the
roads in the winter are extremely corro-
sive in combination with water, carry
out the following steps after each ride
in the rain, near the sea or on salt-
sprayed roads. (Salt sprayed in the
winter may remain on the roads well
into spring.)
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