brake YAMAHA TDR 125 2000 User Guide

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9 Tire inspection
Always check the tires before operat-
ing the motorcycle. If center tread
depth reaches the limit as shown, if
the tire has a nail or glass fragments
in it, or if the side wall is cracked,
contact a Yamaha dealer immediate-
ly and have the tire replaced.
1
2
1. Tread depth
2. Side wall
NOTE:
These limits may be different by regu-
lation from country to country. If so,
conform to the limits specified by the
regulations of your own country.
Manufacturer Size Type
BRIDGESTONE 100/90-18 56P TW53
DUNLOP 100/90-18 56P D602F
FRONT
Manufacturer Size Type
BRIDGESTONE 130/80-17 65P TW54
DUNLOP 130/80-17 65P D602
REAR
Minimum tire tread
depth 0.8 mm
(front and rear)
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Operating the motorcycle with
excessively worn tires decrease
riding stability and can lead to loss
of control. Have excessively worn
tires replaced by a Yamaha dealer
immediately. Brakes, tires, and
related wheel parts replacement
should be left to a Yamaha Service
Technician.
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b
a3
EAU00696
Front brake lever free play
adjustment
The free play at the front brake lever
should be 2 ~ 5 mm.
1. Loosen the locknut.
2. Turn the adjusting bolt in direc-
tionato increase free play or in
directionbto decrease free play.
3. After adjusting, tighten the lock-
nut.
1. Locknut
2. Adjusting bolt
3. Free play
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8 8
Check the brake lever free
play. Be sure the brake is
working properly.
8 8
A soft or spongy feeling in the
brake lever 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.
a
1
EAU00712
Rear brake pedal height
adjustment
The top of the brake pedal should be
positioned 23 mm below the top of
the footrest. If not, ask a Yamaha
dealer to adjust it.
1. Footrest
a. Pedal height
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A soft or spongy feeling in the
brake pedal can indicate the pres-
ence 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
adjustment
The rear brake light switch is activat-
ed by the brake pedal and is properly
adjusted when the brake light comes
on just before braking takes effect.
To adjust the rear brake light switch,
hold the switch body so it does not
rotate while turning the adjusting nut.
Turn the adjusting nut in direction a
to make the brake light come on earli-
er.
Turn the adjusting nut in direction b
to make the brake light come on
later.
ba
1
2
1. Brake light switch
2. Adjusting nut
EAU00721
Checking the front and rear
brake pads
EAU00725
Front brake
A wear indicator groove is provided
on each brake pad. This indicator
allows checking of brake pad wear
without disassembling the brake.
Inspect the groove. If the groove has
almost disappeared, ask a Yamaha
dealer to replace the pads.
1
1. Wear indicator grooveFRONT
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1. Wear limit: 0.8 mmREAR
EAU00733
Inspecting the brake fluid
level
Insufficient brake fluid may let air
enter the brake system, possibly
causing the brakes to become inef-
fective.
Before riding, check that the brake
fluid is above the minimum level and
replenish when necessary.
Observe these precautions:
8When checking the fluid level,
make sure the top of the master
cylinder is level by turning the
handlebars.
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1. Minimum level markFRONT
1
1. Minimum level mark
8Use only the designated quality
brake fluid. Otherwise, the rub-
ber seals may deteriorate, caus-
ing leakage and poor brake per-
formance.
NOTE:
If DOT 4 is not available, DOT 3 can
be used for the front brake only.
REAR
Recommended fluid:
DOT 4
EAU00730
Rear brake
Inspect the pads through the window
as shown.
If the thickness is less than the speci-
fied value, have a Yamaha dealer
replace the pads.
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98Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor brake performance.
8Be careful that water does not
enter the master cylinder when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.
8Brake fluid may deteriorate paint-
ed surfaces or plastic parts.
Always clean up spilled fluid
immediately.
8Have a Yamaha dealer check
the cause if the brake fluid level
goes down.
EAU00742Brake fluid replacement
The brake fluid should be replaced
only by trained Yamaha service per-
sonnel. Have the Yamaha dealer
replace the following components
during periodic maintenance or when
they are damaged or leaking:
8oil seals (every two years)
8brake hoses (every four years)
EAU00744Drive chain slack check
NOTE:
Spin the wheel several times and find
the tightest position of the chain.
Check and/or adjust the chain slack
while it’s in this tightest position.
a
a. Chain slack
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EAU00774
Autolube pump adjustment
The autolube pump is a vital part of
the engine and requires very sophisti-
cated adjustment.
Adjusting should be left to a Yamaha
dealer who has the professional
knowledge and experience to do so.
EAU02984
Brake and shift pedal
lubrication
Lubricate the pivoting parts.
Recommended lubricant:
Engine oil
EAU02985
Brake and clutch lever
lubrication
Lubricate the pivoting parts.
Recommended lubricant:
Engine oil
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9 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.
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If any damage or unsmooth move-
ment is found with the front fork,
consult a Yamaha dealer.
EAU00794Steering inspection
Periodically inspect the condition of
the steering. Worn out or loose steer-
ing bearings may be dangerous.
Place a stand under the engine to
raise the front wheel off the ground.
Hold the lower end of the front forks
and try to move them forward and
backward. If any free play can be felt,
ask a Yamaha dealer to inspect and
adjust the steering. Inspection is eas-
ier if the front wheel is removed.
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Securely support the motorcycle
so there is no danger of it falling
over.
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1. Speedometer cable
EAU00894Front wheel removalEW000122
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It is advisable to have a
Yamaha dealer service the
wheel.
8 8
Securely support the motorcy-
cle so there is no danger of it
falling over.
1. Remove the speedometer cable
from the front wheel side.
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1. Pinch bolt
2. Wheel axle
2. Loosen the pinch bolt and wheel
axle.
3. Elevate the front wheel by plac-
ing a suitable stand under the
engine.
4. Remove the wheel axle and the
front wheel.
NOTE:
Do not depress the brake lever when
the disc and caliper are separated.
1
1. Bulb
3. Install a new bulb by pushing it
inward and turning it clockwise.
4. Install the lens and tighten the
screw.
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3. Install the wheel axle and let the
motorcycle down.
4. Push down hard on the handle-
bars several times to check for
proper fork operation.
5. Tighten the wheel axle to the
specified torque.
6. Install the pinch bolt and tighten
it to the specified torque.
7. Install the speedometer cable.Tightening torque:
Wheel axle:
59 Nm (5.9 m0kg)
Pinch bolt:
20 Nm (2.0 m0kg)
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EAU01618Rear wheel removalEW000122
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It is advisable to have a
Yamaha dealer service the
wheel.
8 8
Securely support the motorcy-
cle so there is no danger of it
falling over.
1. Loosen the axle nut.
1. Locknut
2. Adjusting nut
3. Axle nut
EAU01394Front wheel installation
1. Install the speedometer gear unit
into the wheel hub. Make sure
the wheel hub and the
speedometer gear unit are
installed with the projections
meshed into the slots.
2. Lift up the wheel between the
front fork legs and guide the
brake disc between the brake
pads. Make sure the slot in the
speedometer gear unit fits over
the stopper on the front fork
outer tube.
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2. Elevate the rear wheel by placing
a suitable stand under the
engine.
3. Remove the axle nut.
4. Loosen the locknuts and chain
adjusting nuts on each side.
5. Push the wheel forward and
remove the drive chain.
6. While supporting the brake
caliper, pull out the wheel axle.
7. Remove the wheel assembly.
NOTE:
8Do not depress the brake pedal
when the disc and caliper are
separated.
8You do not have to disassemble
the chain in order to remove or
install the rear wheel.
EAU01620
Rear wheel installation
1. Install the rear brake caliper.
Make sure the slot in the caliper
bracket is fit over the stopper on
the swingarm.
2. Install the rear wheel and chain.
Guide the brake disc between
the brake pads. Make sure there
is enough gap between the
brake pads before inserting the
brake disc.
3. Install the wheel axle and axle
nut, and let the motorcycle down.
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