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Carburetor adjustment ..................................6-15
Idle speed adjustment ...................................6-15
Throttle cable free play adjustment..............6-16
Valve clearance adjustment ..........................6-16
Tires.................................................................6-17
Wheels ............................................................6-19
Clutch lever free play adjustment .................6-19
Front brake lever free play adjustment ........6-20
Rear brake pedal height and free play
adjustment ......................................................6-21
Brake light switch adjustment.......................6-22
Checking the front brake pads and rear brake
shoes ...............................................................6-22
Inspecting the brake fluid level .....................6-23
Brake fluid replacement.................................6-24
Drive chain slack check ..................................6-24
Drive chain slack adjustment ........................6-25
Drive chain lubrication...................................6-26
Cable inspection and lubrication ..................6-27
Throttle cable and grip lubrication ...............6-27
Brake and shift pedal lubrication ..................6-28
Brake and clutch lever lubrication ................6-28
Sidestand lubrication .....................................6-28
Front fork inspection ......................................6-29
Steering inspection ........................................6-29
Wheel bearings ..............................................6-30Battery .............................................................6-30
Fuse replacement ...........................................6-32
Headlight bulb replacement ..........................6-33
Turn signal light bulb replacement ..............6-34
Taillight bulb replacement ............................6-35
Supporting the motorcycle ...........................6-36
Front wheel removal ......................................6-36
Front wheel installation .................................6-37
Rear wheel removal .......................................6-38
Rear wheel installation ..................................6-39
Troubleshooting .............................................6-40
Troubleshooting chart ...................................6-41
MOTORCYCLE CARE AND STORAGE ..............7-1
Care ...................................................................7-1
Storage..............................................................7-4
SPECIFICATIONS................................................8-1
How to use the conversion table ....................8-5
CONSUMER INFORMATION .............................9-1
Identification number records.........................9-1
Key identification number ...............................9-1
Vehicle identification number .........................9-1
Model label .......................................................9-2
TABLE OF CONTENTS
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EAU01038
SPECIFICATIONS
Specifications
Model XV125S
Dimensions
Overall length 2,190 mm
Overall width 805 mm
Overall height 1,140 mm
Seat height 685 mm
Wheel base 1,495 mm
Ground clearance 145 mm
Minimum turning radius 2,800 mm
Basic weight (with oil and full
fuel tank)147 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 10.7:1
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
Periodic oil change 1.4 L
With oil filter replacement 1.6 L
Total amount 1.7 L
Air filterWet type element
8-1
–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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SPECIFICATIONS
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Fuel
Type Regular unleaded gasoline
Fuel tank capacity 9.5 L
Reserve amount 2.6 L
Carburetor
Type/quantity BDS26/1
Manufacturer MIKUNI
Spark plug
Manufacturer / Type NGK / CR6HSA or
DENSO / U20FSR-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 3.615
Number of sprocket teeth
(Rear/Front) 47/13
Transmission type Constant mesh 5-speed
Operation Left foot operationGear ratio 1st 2.643
2nd 1.684
3rd 1.261
4th 1.000
5th 0.821
Chassis
Frame type Double cradle
Caster angle 32°
Trail 120 mm
Tire
Type With tube
Front
Size 3.00-18 47P
Manufacturer/ CHENG SHIN / C-916
model
Rear
Size 130/90-15 M/C 66P
Manufacturer/ CHENG SHIN / C-915
model
8-2
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EAU01039
CONSUMER INFORMATION
9-1
EAU02944Identification number
records
Record the key identification num-
ber, vehicle identification number
and model label information in the
spaces provided 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:
EAU01042Key identification number
The key identification number is
stamped on the key.
Record this number in the space
provided and use it for reference
when obtaining a new key.
1. Key identification number
EAU01043Vehicle identification
number
The vehicle identification number
is stamped into the steering head
pipe.
Record this number in the space
provided.
NOTE:
The vehicle identification number
is used to identify your motorcycle
and may be used to register your
motorcycle with the licensing
authority in your state.
1. Vehicle identification number
1
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1
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CONSUMER INFORMATION
9-2
EAU01050Model label
The model label is affixed to the
frame under the seat. (See page
3-9 for seat removal procedures.)
Record the information on this
label in the space provided. This
information will be needed to
order spare parts from your
Yamaha dealer.
1. Model label
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