brake YAMAHA MAJESTY 250 2003 Owner's Manual

6-27
PERIODIC MAINTENANCE AND MINOR REPAIR
68Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for
it to develop its optimal charac-
teristics.
1. Loosen the locknut at the brake
lever.
2. To increase the brake lever free
play, turn the adjusting bolt in
direction a. To decrease the
brake lever free play, turn the
adjusting bolt in direction b.
3. Tighten the locknut.
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If proper adjustment cannot be
obtained as described, have a
Yamaha dealer make this adjust-
ment.
1
c
a
b
2
1. Locknut
2. Adjusting bolt
c. Brake lever free play
EAU00703
Adjusting the front and rear
brake lever free play
Front and rear brake lever free play, adjustingThe front and rear brake lever free
play should measure 2–5 mm as
shown. Periodically check the front
and rear brake lever free play and, if
necessary, adjust them as follows.
a b
c 1
2
1. Locknut
2. Adjusting bolt
c. Brake lever free playFRONT
REAR
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6-28
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU00721
Checking the front and rear
brake pads
Front and rear brake pads, checkingThe front and rear brake pads must
be checked for wear at the intervals
specified in the periodic maintenance
and lubrication chart.
2. Install the brake caliper bolt, and
then tighten it to the specified
torque.
1
1. Wear indicator groove
EAU04583
Front brake pads
Each front brake pad is provided with
a wear indicator groove, which allows
you to check the brake pad wear
without having to disassemble the
brake. Check the brake pad wear as
follows.
1. Remove the brake caliper bolt,
and then tilt the caliper forward
to inspect the wear indicator
groove. If a brake pad has worn
to the point that the wear indica-
tor groove has almost disap-
peared, have a Yamaha dealer
replace the brake pads as a set.
1
2
1. Brake caliper bolt
2. Brake caliper
FRONT
Tightening torque:
Brake caliper bolt:
26.5 Nm (2.65 m·kgf)
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6-29
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03939
Rear brake pads
Each rear brake pad is provided with
a wear indicator groove, which allows
you to check the brake pad wear
without having to disassemble the
brake. To check the brake pad wear,
check the wear indicator groove. If a
brake pad has worn to the point that
the wear indicator groove has almost
disappeared, have a Yamaha dealer
replace the brake pads as a set.
1
1. Wear indicator groove
Observe these precautions:
8When checking the fluid level,
make sure that the top of the
brake fluid reservoir is level.
8Use only the recommended qual-
ity brake fluid, otherwise the rub-
ber seals may deteriorate, caus-
ing leakage and poor braking
performance.
1
1. Minimum level mark
EAU04904
Checking the brake fluid
level
Brake fluid level, checkingInsufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. 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 leak-
age.
1
1. Minimum level mark
REARFRONTREAR
Recommended brake fluid:
DOT 4
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6-30
PERIODIC MAINTENANCE AND MINOR REPAIR
6 8Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking perfor-
mance.
8Be careful that water or dust
does not enter the brake fluid
reservoir when refilling. Water
will significantly lower the boiling
point of the fluid and may result
in vapor lock, and dirt may clog
the ABS hydraulic unit valves.
8Brake fluid may deteriorate paint-
ed surfaces or plastic parts.
Always clean up spilled fluid
immediately.
8As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
EAU02962
Checking and lubricating the
cables
Cables, checking and lubricatingThe operation of all control cables
and the condition of the cables
should be checked before each ride,
and the cables and cable ends
should be lubricated if necessary. If
a cable is damaged or does not move
smoothly, have a Yamaha dealer
check or replace it.
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Damage to the outer sheath may
interfere with proper cable opera-
tion and will cause the inner cable
to rust. Replace a damaged cable
as soon as possible to prevent
unsafe conditions.
EAU03976
Changing the brake fluidBrake fluid, changingHave a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic mainte-
nance and lubrication chart. In addi-
tion, have the oil seals of the master
cylinders and calipers as well as the
brake hoses replaced at the intervals
listed below or whenever they are
damaged or leaking.
8Oil seals: Replace every two
years.
8Brake hoses: Replace every four
years.Recommended lubricant:
Engine oil
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6-31
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU04034
Checking and lubricating the
throttle grip and cable
Throttle grip and cable, checking and lubricatingThe operation of the throttle grip
should be checked before each ride.
In addition, the cable should be lubri-
cated or replaced at the intervals
specified in the periodic maintenance
chart.
EAU03371
Checking and lubricating the
centerstand and sidestand
Centerstand and sidestand, checking and lubricatingThe operation of the centerstand and
sidestand should be checked before
each ride, and the pivots and metal-
to-metal contact surfaces should be
lubricated if necessary.
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If the centerstand or sidestand
does not move up and down
smoothly, have a Yamaha dealer
check or repair it.
EAU03118
Lubricating the front and
rear brake levers
Brake levers, lubricatingThe pivoting points of the front and
rear brake levers must be lubricated
at the intervals specified in the peri-
odic maintenance and lubrication
chart.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
Sidestand
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6-32
PERIODIC MAINTENANCE AND MINOR REPAIR
6
To check the operation
1. Place the scooter on a level sur-
face and hold it in an upright
position.
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and
rebounds smoothly.
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cC
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or
repair it.
EAU02939
Checking the front forkFront fork, checkingThe condition and operation of the
front fork must be checked as follows
at the intervals specified in the peri-
odic maintenance and lubrication
chart.
To check the condition
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Securely support the scooter so
that there is no danger of it falling
over.
Check the inner tubes for scratches,
damage and excessive oil leakage.
Centerstand
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
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6-40
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03618
Replacing a rear turn signal
light bulb
Turn signal light bulb (rear), replacing1. Place the scooter on the center-
stand.
2. Remove cowling C. (See page
6-10 for cowling removal and
installation procedures.)
EAU03619
Replacing a tail/brake light
bulb
Tail/brake light bulb, replacing1. Place the scooter on the center-
stand.
2. Remove cowling C. (See page
6-10 for cowling removal and
installation procedures.)
3. Remove the socket (together
with the bulb) by turning it coun-
terclockwise.
4. Remove the defective bulb by
pulling it out.
5. Insert a new bulb into the socket.
6. Install the socket (together with
the bulb) by turning it clockwise.
7. Install the cowling.
1
1. Socket
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7-2
SCOOTER CARE AND STORAGE
7 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 and swingarm bearings,
fork and brakes), electric com-
ponents (couplers, connec-
tors, instruments, switches
and lights), breather hoses
and vents.8 8
For scooters 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 that it
does not leave any marks. If
the windshield is scratched,
use a quality plastic polishing
compound after washing.After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottle-
brush for hard-to-reach areas.
Stubborn dirt and insects will come
off more easily if the area is covered
with a wet cloth for a few minutes
before cleaning.After riding in the rain, near the sea
or on salt-sprayed roads
Since sea salt or salt sprayed on the
roads during winter are extremely
corrosive in combination with water,
carry out the following steps after
each ride in the rain, near the sea or
on salt-sprayed roads.
NOTE:
Salt sprayed on roads in the winter
may remain well into spring.
1. Clean the scooter with cold water
and a mild detergent after the
engine has cooled down.
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Do not use warm water since it
increases the corrosive action of
the salt.
2. Apply a corrosion protection
spray on all metal, including
chrome- and nickel-plated, sur-
faces to prevent corrosion.
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7-3
SCOOTER CARE AND STORAGE
7After cleaning
1. Dry the scooter with a chamois
or an absorbing cloth.
2. 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.)
3. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal, includ-
ing chrome- and nickel-plated,
surfaces.
4. Use spray oil as a universal
cleaner to remove any remaining
dirt.
5. Touch up minor paint damage
caused by stones, etc.6. Wax all painted surfaces.
7. Let the scooter dry completely
before storing or covering it.
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8 8
Make sure that there is no oil
or wax on the brakes or tires.
If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild
detergent.
8 8
Before operating the scooter
test its braking performance
and cornering behavior.
ECA00013
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8
8
Apply spray oil and wax spar-
ingly and make sure to wipe
off any excess.
8 8
Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
8 8
Avoid using abrasive polish-
ing compounds as they will
wear away the paint.
NOTE:
Consult a Yamaha dealer for advice
on what products to use.
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8-3
SPECIFICATIONS
8
90 kg load–maximum load*
Front200 kPa (2.00 kgf/cm
2, 2.00 bar)
Rear225 kPa (2.25 kgf/cm
2, 2.25 bar)
* Total weight of rider, passenger, cargo and accessories
Wheels
Front
Type Cast wheel
Size 12 ×MT2.75
Rear
Type Cast wheel
Size 12 ×MT3.50
Brakes
Front
Type Single disc brake
Operation Right hand
Fluid DOT 4
Rear
Type Single disc brake
Operation Left hand
Fluid DOT 4Suspension
Front Telescopic fork
Rear Unit swing
Spring/shock absorbers
Front Coil spring/oil damper
Rear Coil spring/oil damper
Wheel travel
Front 100 mm
Rear 90 mm
Electrical
Ignition system Transistorized coil ignition
(digital)
Charging system
Type A.C. magneto
Standard output 14 V, 19.5 A @ 5,000 r/min
Battery
Type GT7B-4
Voltage, capacity 12 V, 6.5 AH
Headlight bulb typeHalogen bulb
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