Page 46 of 86

6-16
1
2
3
4
5
6
7
8
9
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00637
Adjusting the valve
clearance
The valve clearance changes with
use, resulting in improper air-fuel mix-
ture and/or engine noise. To prevent
this from occurring, the valve clear-
ance must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAU00647
Tires
To ensure maximum performance as
well as the long and safe operation of
your motorcycle, note the following
points regarding the specified tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
EW000082
w
8The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the tempera-
ture of the tires equals the
ambient temperature).
8The tire air pressure must be
adjusted in accordance with
the riding speed and with the
total weight of rider, passen-
ger, cargo, and accessories
approved for this model.
*Total weight of rider, passenger, cargo and
accessories
Tire air pressure (measured on cold tires)
Load* Front Rear
175 kPa 200 kPa
Up to 90 kg (1.75 kg/cm
2, (2.0 kg/cm2,1.75 bar) 2.00 bar)
90 kg load–225 kPa 225 kPa
maximum load*(2.25 kg/cm
2, (2.25 kg/cm2,
2.25 bar) 2.25 bar)
Maximum load* 183 kg
5JX-9-E0 4/9/0 4:11 AM Page 44
Page 47 of 86

1
2
3
4
5
6
7
8
9
6-17
PERIODIC MAINTENANCE AND MINOR REPAIR
EWA00012
w
Because loading has an enormous
impact on the handling, braking,
performance and safety character-
istics of your motorcycle, you
should keep the following precau-
tions in mind.
8NEVER OVERLOAD THE
MOTORCYCLE! Operation of
an overloaded motorcycle may
result in tire damage, loss of
control, or severe injury. Make
sure that the total weight of
rider, passenger, cargo, and
accessories does not exceed
the specified maximum load
for the vehicle.
8Do not carry along loosely
packed items, which can shift
during a ride.
8Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.8Adjust the suspension and tire
air pressure with regard to the
load.
8Check the tire condition and
air pressure before each ride.
Tire inspection
The tires must be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragments in it, or
if the sidewall is cracked, have a
Yamaha dealer replace the tire imme-
diately.
NOTE:
The tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.
1. Tread depth
2. Side wall
1
2
Minimum tire tread
depth (front and rear)1.6 mm
5JX-9-E0 4/9/0 4:11 AM Page 45
Page 55 of 86

1
2
3
4
5
6
7
8
9
6-25
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU03238
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the oil
seals of the brake master cylinder
and caliper as well as the brake hose
replaced at the intervals listed below
or whenever it is damaged or leaking.
8Oil seals: Replace every two
years.
8Brake hose: Replace every four
years.2. Shift the transmission into the
neutral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain,
and then measure the drive
chain slack as shown.
4. If the drive chain slack is incor-
rect, adjust it as follows.
EAU00744
Drive chain slack
The drive chain slack should be
checked before each ride and adjust-
ed if necessary.
To check the drive chain slack
1. Place the motorcycle on a level
surface and hold it in an upright
position.
NOTE:
When checking and adjusting the
drive chain slack, the motorcycle
should be positioned straight up and
there should be no weight on it.
a. Drive chain slack
a
Drive chain slack:
30–40 mm
5JX-9-E0 4/9/0 4:11 AM Page 53
Page 78 of 86

7
EAU01038
SPECIFICATIONS
8-1
Specifications
Model XVS125
Dimensions
Overall length 2,320 mm
Overall width 910 mm
Overall height 1,075 mm
Seat height 670 mm
Wheel base 1,530 mm
Ground clearance 150 mm
Minimum turning radius 2,900 mm
Basic weight (with oil and full
fuel tank)156 kg
Engine
Engine type Air-cooled 4-stroke, SOHC,
gasoline
Cylinder arrangement V-type 2-cylinder
Displacement 124 cm
3
Bore ´Stroke 41.0 ´47.0 mm
Compression ratio 11:1
Starting system Electric starter
Lubrication system Wet sumpEngine oil
Type
Recommended engine oil
classification API Service SE, SF, SG type
or higher
cC
Be sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled “Energy
Conserving”) 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
replacement 1.4 L
With oil filter element
replacement 1.6 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
8
5JX-9-E0 4/9/0 4:11 AM Page 76
Page 80 of 86
8
SPECIFICATIONS
8-3
Maximum load* 183 kg
Air pressure (cold tire)
up to 90 kg load*
Front
175 kPa (1.75 kg/cm2, 1.75 bar)
Rear200 kPa (2.00 kg/cm2, 2.00 bar)
90 kg load–maximum
load*
Front
225 kPa (2.25 kg/cm2, 2.25 bar)
Rear225 kPa (2.25 kg/cm2, 2.25 bar)
*Load is total weight of cargo, rider, passenger and accessories.
Wheels
Front
Type Spoke wheel
Size 18 ´1.60
Rear
Type Spoke wheel
Size 15 M/C ´MT 3.00
Brakes
Front
Type Single disc brake
Operation Right hand operation
Fluid DOT 4Rear
Type Drum brake
Operation Right foot operation
Suspension
Front
Type Telescopic fork
Rear
Type Swingarm
Shock absorber/spring
Front
Type Coil spring / oil damper
Rear
Type Coil spring / oil damper
Wheel travel
Front 140 mm
Rear 100 mm
Electrical system
Ignition system Transistorized coil ignition
(digital)
Charging system
Type A.C. magneto
Standard output 14 V, 23 A @ 5,000 r/min
5JX-9-E0 4/9/0 4:11 AM Page 78
Page 82 of 86
8
SPECIFICATIONS
8-5
EAU01064
Conversion table
All specification data in this manual are listed in SI and
METRIC UNITS.
Use this table to convert METRIC unit data to
IMPERIAL unit data.
Ex.
METRIC MULTIPLIER IMPERIAL
** mm´0.03937 = ** in
2 mm´0.03937 = 0.08 inMETRIC TO IMPERIAL
Metric unit Multiplier Imperial unit
m • kg 7.233 ft • lb
Torquem • kg 86.794 in• lb
cm • kg 0.0723 ft • lb
cm • kg 0.8679 in • lb
Weightkg 2.205 lb
g 0.03527 oz
Speed km/hr 0.6214 mph
km 0.6214 mi
m 3.281 ft
Distance m 1.094 yd
cm 0.3937 in
mm 0.03937 in
cc (cm3) 0.03527 oz (IMP liq.)
Volume/ cc (cm3) 0.06102 cu • in
Capacity L (liter) 0.8799 qt (IMP liq.)
L (liter) 0.2199 gal (IMP liq.)
kg/mm 55.997 lb/in
Misc. kg/cm2 14.2234 psi (lb/in2)
Centigrade (°C)9/5 + 32Fahrenheit (°F)
CONVERSION TABLE
5JX-9-E0 4/9/0 4:11 AM Page 80