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EAU01175
OwnerÕs tool kitThe ownerÕs tool kit is located behind
panel B. (See page 6-6 for panel
removal and installation procedures.)
The service information included in
this manual and the tools provided in
the ownerÕs tool kit are intended to
assist you in the performance of pre-
ventive maintenance and minor
repairs. However, additional tools
such as a torque wrench may be nec-
essary to perform certain mainte-
nance work correctly.1.OwnerÕs tool kit
EAU00464
Safety is an obligation of the owner.
Periodic inspection, adjustment and
lubrication will keep your vehicle in
the safest and most efficient condi-
tion possible. The most important
points of inspection, adjustment, and
lubrication are explained on the fol-
lowing pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a
general guide under normal riding
conditions. However, DEPENDING
ON THE WEATHER, TERRAIN,
GEOGRAPHICAL LOCATION, AND
INDIVIDUAL USE, THE MAINTE-
NANCE INTERVALS MAY NEED TO
BE SHORTENED.
EW000060
wIf you are not familiar with motor-
cycle maintenance work, have a
Yamaha dealer do it for you.
NOTE:
If you do not have the tools or experi-
ence required for a particular job,
have a Yamaha dealer perform it for
you.
EW000063
wModifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle
unsafe for use. Consult a Yamaha
dealer before attempting any
changes.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
6-4
22Engine oil filter element¥Replace.ÖÖÖ
23
*Front and rear brake
switches¥Check operation.ÖÖÖÖÖÖ
24Moving parts and cables¥Lubricate.ÖÖÖÖÖ
25*Lights, signals and
switches¥Check operation.
¥Adjust headlight beam.ÖÖÖÖÖÖ NO.ITEMCHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
16121824
EAU03541
NOTE:
8The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8Hydraulic brake service
8
Regularly check and, if necessary, correct the brake fluid level.
8
Every two years replace the internal components of the brake master cylinder and caliper, and change the brake
fluid.
8
Replace the brake hoses every four years and if cracked or damaged.
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU01168
Adjusting the engine idling
speedThe engine idling speed must be
checked and, if necessary, adjusted
as follows at the intervals specified in
the periodic maintenance and lubrica-
tion chart.NOTE:
A diagnostic tachometer is needed to
make this adjustment.1.Attach the tachometer to the
spark plug lead.
2.Start the engine and warm it up
for several minutes at 1,000Ð
2,000 r/min while occasionally
revving it to 4,000Ð5,000 r/min.NOTE:
The engine is warm when it quickly
responds to the throttle.
EAU00629
Adjusting the carburetorThe carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, most
carburetor adjustments should be left
to a Yamaha dealer, who has the
necessary professional knowledge
and experience. The adjustment
described in the following section,
however, may be serviced by the
owner as part of routine mainte-
nance.
EC000094
cCThe carburetor has been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine.
3.Check the engine idling speed
and, if necessary, adjust it to
specification by turning the throt-
tle stop screw. To increase the
engine idling speed, turn the
screw in direction a. To
decrease the engine idling speed,
turn the screw in direction b.NOTE:
If the specified idling speed cannot
be obtained as described above,
have a Yamaha dealer make the
adjustment.1.Throttle stop screw
1b
a
Engine idling speed:
1,250Ð1,450 r/min
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PERIODIC MAINTENANCE AND MINOR REPAIR
2.Wipe the drive chain dry.
3.Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
ECA00052
cCDo not use engine oil or any other
lubricants for the drive chain, as
they may contain substances that
could damage the O-rings.
EAU02962
Checking and lubricating the
cablesThe 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.
Recommended lubricant:
Engine oil
EAU03006
Lubricating the drive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly
wear out, especially when riding in
dusty or wet areas. Service the drive
chain as follows.
EC000097
cCThe drive chain must be lubricated
after washing the motorcycle or
riding in the rain.1.Clean the drive chain with
kerosene and a small soft brush.
ECA00053
cCTo prevent damaging the O-rings,
do not clean the drive chain with
steam cleaners, high-pressure
washers or inappropriate solvents.
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To service the rear wheel
Raise the rear wheel off the ground
by using a motorcycle stand or, if a
motorcycle stand is not available, by
placing a jack either under each side
of the frame in front of the rear wheel
or under each side of the swingarm.
EAU03239
Front wheelTo remove the front wheel
EW000122
w8It is advisable to have a
Yamaha dealer service the
wheel.
8Securely support the motorcy-
cle so that there is no danger
of it falling over.1.Disconnect the speedometer
cable from the front wheel.1.Speedometer cable
1
EAU01579
Supporting the motorcycleSince this model is not equipped with
a centerstand, follow these precau-
tions when removing the front and
rear wheel or performing other main-
tenance requiring the motorcycle to
stand upright. Check that the motor-
cycle is in a stable and level position
before starting any maintenance. A
strong wooden box can be placed
under the engine for added stability.
To service the front wheel
1.Stabilize the rear of the motorcy-
cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing
a jack under the frame in front of
the rear wheel.
2.Raise the front wheel off the
ground by using a motorcycle
stand.
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EAU03189
Rear wheelTo remove the rear wheel
EW000122
w8It is advisable to have a
Yamaha dealer service the
wheel.
8Securely support the motorcy-
cle so that there is no danger
of it falling over.1.Loosen the axle nut and the
brake torque rod nut at the brake
shoe plate.1.Axle nut
1
2.Lift the rear wheel off the ground
according to the procedure on
page 6-37.
3.Disconnect the brake torque rod
from the brake shoe plate by
removing the nut and the bolt.
4.Remove the brake pedal free
play adjusting nut, and then dis-
connect the brake rod at the
brake camshaft lever.1.Brake torque rod nut
2.Brake torque rod
3.Brake pedal free play adjusting nut
4.Brake rod
5.Brake camshaft lever
2
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5.Tighten the wheel axle to the
specified torque.
6.Tighten the front wheel axle
pinch bolt to the specified torque.
7.Push down hard on the handle-
bar several times to check for
proper fork opertion.
8.Connect the speedometer cable. Tightening torque:
Wheel axle:
59 Nm (5.9 mákg)Tightening torque:
Front wheel axle pinch bolt:
20 Nm (2.0 mákg)
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EAU01008
TroubleshootingAlthough Yamaha motorcycles
receive a thorough inspection before
shipment from the factory, trouble
may occur during operation. Any
problem in the fuel, compression, or
ignition systems, for example, can
cause poor starting and loss of
power.
The following troubleshooting chart
represents a quick and easy proce-
dure for checking these vital systems
yourself. However, should your
motorcycle require any repair, take it
to a Yamaha dealer, whose skilled
technicians have the necessary tools,
experience, and know-how to service
the motorcycle properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life
and can lead to expensive repair
bills.
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EAU01038
SPECIFICATIONS
8-1
8
Specifications
ModelXVS125
Dimensions
Overall length2,320 mm
Overall width910 mm
Overall height1,075 mm
Seat height670 mm
Wheel base1,530 mm
Ground clearance150 mm
Minimum turning radius2,900 mm
Basic weight (with oil and full
fuel tank)156 kg
Engine
Engine typeAir-cooled 4-stroke, SOHC,
gasoline
Cylinder arrangementV-type 2-cylinder
Displacement124 cm
3
Bore ´Stroke41.0 ´47.0 mm
Compression ratio11:1
Starting systemElectric starter
Lubrication systemWet sumpEngine oil
Type
Recommended engine oil
classificationAPI Service SE, SF, SG type
or higher
cCBe sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled ÒEnergy
ConservingÓ) contain anti-friction additives which will cause
clutch and/or starter clutch slippage, resulting in reduced
component life and poor engine performance.
Quantity
Without oil filter element
replacement1.4 L
With oil filter element
replacement1.6 L
Total amount (dry engine)1.75 L
Air filter typeDry element
–10° 0° 10° 20° 30°
40°
SAE 10W/30
SAE 10W/40
SAE 20W/40
SAE 20W/50
–20°
SAE 15W/40 50°C
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