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6-17
PERIODIC MAINTENANCE AND MINOR REPAIR
6 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.
Tire information
This motorcycle is equipped with tube
tires.
EW000078
w8The front and rear tires should
be of the same make and
design, otherwise the handling
characteristics of the motorcy-
cle cannot be guaranteed.
8After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor Co., Ltd.
a
1
1. Side wall
a. Tire tread depthMinimum tire tread depth
(front and rear)1.6 mm
FRONT
Manufacturer Size Model
CHENG SHIN80/100-18 47P
C-916
80/100-18 M/C 47P
INOUE80/100-18 47P
MARBELLA NF27
80/100-18 M/C 47P
REAR
Manufacturer Size Model
CHENG SHIN 130/90-15 M/C 66P C-915
INOUE 130/90-15 M/C 66P
MARBELLA NR31
EAU00681
w8Have a Yamaha dealer replace
excessively worn tires.
Besides being illegal, operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
8The replacement of all wheel-
and brake-related parts,
including the tires, should be
left to a Yamaha dealer, who
has the necessary profession-
al knowledge and experience.
8It is not recommended to
patch a punctured tube. If
unavoidable, however, patch
the tube very carefully and
replace it as soon as possible
with a high-quality product.
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8-1
EAU01038
SPECIFICATIONS
8
Specifications
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
cCBe sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled “ENERGY
CONSERVING II”) 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
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8-2
SPECIFICATIONS
8
Fuel
Type Regular unleaded gasoline
Fuel tank capacity 11 L
Reserve amount 3.4 L
Carburetor
Manufacturer MIKUNI
Model ×quantity BDS26 ×1
Spark plug
Manufacturer/model NGK/CR7HSA or
DENSO/U22FSR-U
Gap 0.6–0.7 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 3.400
Secondary reduction system Chain drive
Secondary reduction ratio 3.688
Number of drive chain
sprocket teeth (rear/front) 59/16
Transmission type Constant mesh 5-speed
Operation Left foot operationGear ratio 1st 2.643
2nd 1.684
3rd 1.261
4th 1.000
5th 0.852
Chassis
Frame type Double cradle
Caster angle 35°
Trail 135 mm
Tires
Front
Type With tube
Size 80/100-18 47P
80/100-18 M/C 47P
Manufacturer/ CHENG SHIN/C-916
model INOUE/MARBELLA NF27
Rear
Type With tube
Size 130/90-15 M/C 66P
Manufacturer/ CHENG SHIN/C-915
model INOUE/MARBELLA NR31
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9-1
EAU01039
CONSUMER INFORMATION
9
EAU02944
Identification numbers
Identification numbers
Record the key identification number,
vehicle identification number and
model label information in the spaces
provided below for assistance when
ordering spare parts from a Yamaha
dealer or for reference in case the
vehicle is stolen.
1. KEY IDENTIFICATION
NUMBER:
2. VEHICLE IDENTIFICATION
NUMBER:
3. MODEL LABEL INFORMATION:
EAU01041
Key identification number
Key identification number
The key identification number is
stamped into the key tag.
Record this number in the space pro-
vided and use it for reference when
ordering a new key.
EAU01043
Vehicle identification number
Vehicle identification number
The vehicle identification number is
stamped into the steering head pipe.
Record this number in the space pro-
vided.NOTE:
The vehicle identification number is
used to identify your motorcycle and
may be used to register your motor-
cycle with the licensing authority in
your area.
1
1
1. Vehicle identification number 1. Key identification number
1
6
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9-2
CONSUMER INFORMATION
9
EAU03757
Model label
Model label
The model label is affixed to the loca-
tion shown. Record the information
on this label in the space provided.
This information will be needed when
ordering spare parts from a Yamaha
dealer.
1
1. Model label
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