2000 YAMAHA XV125S maintenance

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98Use only the designated quali-
ty brake fluid. Otherwise, the
rubber seals may deteriorate,
causing leakage and poor
brake performance.
NOTE:
If DOT 4 is not available, DOT 3 can
be used.
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 significant-
ly lower the boiling point of
the fluid and may result in
vapor lock. Recommended brake fluid:
DOT 4
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00727
Rear brake
Apply the brake and inspect the
wear indicator.
If the indicator reaches the wear
limit line, ask a Yamaha dealer to
replace the shoes.
1. Wear limit line
2. Wear indicator
EAU00732Inspecting 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 fill when necessary.
Observe these precautions:
8When checking the fluid level,
make sure the top of the mas-
ter cylinder is level by turning
the handlebars.
1. Minimum level mark
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PERIODIC MAINTENANCE AND MINOR REPAIR
8Brake fluid may deteriorate
painted 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
personnel. Have the Yamaha deal-
er replace the following compo-
nents during periodic maintenance
or when they are damaged or leak-
ing:
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.
To check the chain slack the motor-
cycle must be held straight up with
both wheels on the ground and
without rider. Check the slack at
the position shown in the illustra-
tion. Normal slack is approximately
30 ~ 40 mm. If the slack exceeds
40 mm, adjust.
a. Chain slack
a
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9To tighten the chain, turn the
chain adjusting nuts in direc-
tion a. To loosen the chain,
turn the chain adjusting nuts in
direction band push the
wheel forward. Turn each
chain adjusting nut exactly the
same amount to maintain cor-
rect axle alignment. There are
marks on each side of the
swingarm. Use these marks to
align the rear wheel.
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Too little chain slack will overload
the engine and other vital parts.
Keep the slack within the specified
limits.
5. After adjusting, be sure to
tighten each chain adjusting
locknut. Then tighten the axle
nut to the specified torque.
Tightening torque:
Axle nut:
105 Nm (10.5 m·kg)
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00750Drive chain slack adjustment
1. Loosen the rear brake pedal
free play adjusting nut.
1. Rear brake pedal free play adjusting nut
2. Remove the cotter pin from
the axle nut.
3. Loosen the axle nut.
4. Loosen the chain adjusting
locknuts on each side of the
swingarm.
1. Cotter pin
2. Alignment marks
3. Locknut
4. Chain adjusting nut
5. Axle nut
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b
a
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PERIODIC MAINTENANCE AND MINOR REPAIR
7. Adjust the free play in the
brake pedal.
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Check the operation of the brake
light after adjusting the rear brake.
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6. Insert a new cotter pin into the
axle nut and bend the end of
the cotter pin as shown. If the
notch in the axle nut and the
cotter pin hole do not match,
tighten the nut slightly to align
them.
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Always use a new cotter pin on
the axle nut.
1. Cotter pin
EAU00769Drive chain lubrication
The chain consists of many parts
which work with each other. If the
chain is not maintained properly, it
will wear out quickly. Therefore,
the chain must be serviced regular-
ly. This service is especially neces-
sary when riding in dusty areas.
This motorcycle is equipped with a
sealed type chain. Steam cleaning,
high-pressure washes, and sol-
vents can damage chain so do not
use these for cleaning it. Use only
kerosene to clean the drive chain.
Wipe it dry, and thoroughly lubri-
cate it with SAE 30 ~ 50W motor
oil. Do not use any other lubricants
on the drive chain. They may con-
tain solvents that could damage
the sealed chain.
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EAU00773Throttle cable and grip
lubrication
The throttle twist grip assembly
should be greased at the time that
the cable is lubricated, since the
grip must be removed to get at the
end of the throttle cable. After
removing the screws, hold the end
of the cable up in the air and put in
several drops of lubricant. With the
throttle grip disassembled, coat the
metal surface of the grip assembly
with a suitable all-purpose grease.
PERIODIC MAINTENANCE AND MINOR REPAIR
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Be sure to oil the chain after wash-
ing the motorcycle or riding in the
rain.
EAU02962Cable inspection and
lubrication
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Damage to the outer housing of
cables may lead to internal rusting
and interfere with the cable move-
ment. Replace damaged cables as
soon as possible to prevent unsafe
conditions.
Lubricate the cables and cable ends.
If a cable does not operate smooth-
ly, ask a Yamaha dealer to replace it.
Recommended lubricant:
Engine oil
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU02984Brake and shift pedal
lubrication
Lubricate the pivoting parts.
EAU02985Brake and clutch lever
lubrication
Lubricate the pivoting parts.
Recommended lubricant:
Engine oil
Recommended lubricant:
Engine oil
EAU02986Sidestand lubrication
Lubricate the sidestand pivoting
point and metal-to-metal contact
surfaces. Check that the sidestand
moves up and down smoothly.
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If the sidestand does not move
smoothly, consult a Yamaha deal-
er.
Recommended lubricant:
Engine oil
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EAU00794Steering inspection
Periodically inspect the condition
of the steering. Worn out or loose
steering bearings may be danger-
ous. 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 easier if the
front wheel is removed.
PERIODIC MAINTENANCE AND MINOR REPAIR
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 han-
dlebars 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.
EAU02939Front fork inspection
Visual checkEW000115
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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.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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Securely support the motorcycle
so there is no danger of it falling
over.
EAU01144Wheel bearings
If there is play in the front or rear
wheel hub or if the wheel does not
turn smoothly, have a Yamaha
dealer inspect the wheel bearings.
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EAU01071Battery
Check the level of the battery elec-
trolyte and make sure that the ter-
minals are tight.
Fill with distilled water if the elec-
trolyte level is low.
1. Battery
2. Battery breather hose
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