brakes YAMAHA DT125R 2000 Owners Manual

6-20
PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU00685
WheelsTo ensure maximum performance,
long service, and safe operation, note
the following:
8Always inspect the wheels
before a ride. Check for cracks,
bends or warpage of the wheel.
Be sure the spokes are tight and
undamaged. If any abnormal
condition exists in a wheel, con-
sult a Yamaha dealer. Do not
attempt even small repairs to the
wheel. If a wheel is deformed or
cracked, it must be replaced.
8Tires and wheels should be bal-
anced whenever either one is
changed or replaced. Failure to
have a wheel balanced can
result in poor performance,
adverse handling characteristics,
and shortened tire life.
8Ride at moderate speeds after
changing a tire since the tire sur-
face must first be broken in for it
to develop its optimal character-
istics.
EAU00681
w8 8
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 replace-
ment should be left to a
Yamaha Service Technician.
8 8
Patching a punctured tube is
not recommended. If it is
absolutely necessary to do so,
use great care and replace the
tube as soon as possible with
a good quality replacement.
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.
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6-24
PERIODIC MAINTENANCE AND MINOR REPAIR
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98Use 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.
EAU00732
Inspecting the brake fluid
levelInsufficient 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
fill when necessary.
Observe these precautions:
8When checking the fluid level,
make sure the top of the master
cylinder is level by turning the
handlebars.
1
1.Minimum level mark FRONT
1
1.Minimum level markREARRecommended brake fluid:
DOT 4
8Refill 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.
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7-2
MOTORCYCLE CARE AND STORAGE
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8
9 8 8
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.
8 8
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 abra-
sive cleaning products, sol-
vent or thinner, fuel (gasoline),
rust removers or inhibitors,
brake fluid, antifreeze or elec-
trolyte.8 8
Do not use high-pressure
washers or steam-jet cleaners
since they cause water seep-
age and deterioration in the
following areas: seals (of
wheel bearings, swingarm
bearings, forks and brakes),
electric components (cou-
plers, connectors, instru-
ments, switches and lights),
breather hoses and vents.
8 8
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 plas-
tic may leave scratches on the
windshield. Test the product
on a small hidden part of the
windshield to make sure they
do not leave any marks. If the
windshield is scratched, use a
quality plastic polishing com-
pound after washing.
After riding in the rain, near the seaor on salt-sprayed roadsSince sea salt or salt sprayed on the
roads in the winter are extremely cor-
rosive 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.)
1.Clean your motorcycle with cold
water and soap after the engine
has cooled down.
ECA00012
cCDo not use warm water since it
increases the corrosive action of
the salt.2.Be sure to apply a corrosion pro-
tection spray on all (even
chrome- and nickel-plated) metal
surfaces to prevent corrosion.
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7-3
MOTORCYCLE CARE AND STORAGE
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8
9After cleaning
1.Dry the motorcycle with a
chamois or an absorbing cloth.
2.Immediately dry the drive chain
and lubricate it to prevent it from
rusting.
3.Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally
induced discoloring of stainless-
steel exhaust systems can be
removed through polishing.)
4.To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all (even
chrome- and nickel-plated) metal
surfaces.
5.Use spray oil as a universal
cleaner to remove any remaining
dirt.
6.Touch up minor paint damage
caused by stones, etc.
7.Wax all painted surfaces.
8.Let the motorcycle dry complete-
ly before storing it or covering it.
EWA00001
wMake sure that there is no oil or
wax on the brakes and tires. If nec-
essary, clean the brake discs and
linings with a regular brake disc
cleaner or acetone, and wash the
tires with warm water and mild
soap. Then, carefully test the
motorcycle for its braking perfor-
mance and cornering behavior.
ECA00013
cC8
8
Apply spray oil and wax spar-
ingly and wipe off any excess.
8 8
Never apply oil or wax on rub-
ber and plastic parts, but treat
them with a suitable care prod-
uct.
8 8
Avoid using abrasive polish-
ing compounds as they wear
away the paint.
NOTE:
Consult a Yamaha dealer for advice
on what products to use.
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8-3
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SPECIFICATIONS
90 kg load ~ maximum
load*
Front150 kPa (1.50 kg/cm
2, 1.50 bar)
Rear175 kPa (1.75 kg/cm2, 1.75 bar)
Off-road riding
Front125 kPa (1.25 kg/cm2, 1.25 bar)
Rear150 kPa (1.50 kg/cm2, 1.50 bar)
* Load is total weight of cargo, rider, passenger and accessories.
Wheels
Front
TypeSpoke wheel
Size1.60 ´21
Rear
TypeSpoke wheel
Size1.85 ´18
Brakes
Front
TypeSingle disc brake
OperationRight hand operation
FluidDOT 3 or DOT 4Rear
TypeSingle disc brake
OperationRight foot operation
FluidDOT 3 or DOT 4
Suspension
FrontTelescopic fork
RearSwingarm (link suspension)
Shock absorber
FrontCoil spring/oil damper
RearCoil-gas spring/oil damper
Wheel travel
Front270 mm
Rear260 mm
Electrical
Ignition systemC.D.I.
Charging system
TypeC.D.I. magneto
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