ECO mode YAMAHA TW125 2003 Owners Manual

6-18
PERIODIC MAINTENANCE AND MINOR REPAIR
6 Tire information
This motorcycle is equipped with tube
tires.
EW000078
w
8The 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.
EAU00681
w
8Have 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.
EAU00685
Spoke wheels
To maximize the performance, dura-
bility, and safe operation of your
motorcycle, note the following points
regarding the specified wheels.
8The wheel rims should be
checked for cracks, bends or
warpage, and the spokes for
looseness or damage before
each ride. If any damage is
found, have a Yamaha dealer
replace the wheel. Do not
attempt even the smallest repair
to the wheel. A deformed or
cracked wheel must be replaced.
8The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced.
An unbalanced wheel can result
in poor performance, adverse
handling characteristics, and a
shortened tire life.
FRONT
Manufacturer Size Type
BRIDGESTONE130/80-18 M/C 66P TW-203
REAR
Manufacturer Size Type
BRIDGESTONE180/80-14 M/C 78P TW-204
5RS-9-E1 (TW125) 8/23/02 11:37 AM Page 49

8-1
EAU01038
SPECIFICATIONS
8
SpecificationsSpecifications
Model TW125
Dimensions
Overall length 2,135 mm
Overall width 820 mm
Overall height 1,120 mm
Seat height 820 mm
Wheelbase 1,350 mm
Ground clearance 255 mm
Minimum turning radius 2,100 mm
Basic weight (with oil and full
fuel tank)127 kg
Engine
Engine type Air-cooled 4-stroke, SOHC
Cylinder arrangement Forward inclined
single cylinder
Displacement 124 cm
3
Bore ×Stroke 57.0 ×48.8 mm
Compression ratio 10:1
Starting system Electric starter
Lubrication system Wet sumpEngine oil
Type
Recommended engine oil
classification API Service SE, SF, SG type
or higher
cC
In order to prevent clutch slippage (since the engine oil also
lubricates the clutch), do not mix any chemical additives. Do
not use oils with a diesel specification of “CD” or oils of a
higher quality than specified. In addition, do not use oils
labeled “ENERGY CONSERVING II” or higher.
Capacity
Without oil filter element
removal 1.0 L
With oil filter element removal 1.1 L
Total amount (dry engine) 1.3 L
–10° 0° 10° 20° 30°
40°
SAE 10W/30
SAE 10W/40
SAE 20W/40
SAE 20W/50
–20°
SAE 15W/40 50°C
5RS-9-E1 (TW125) 8/23/02 11:37 AM Page 80

8-2
SPECIFICATIONS
8
Air filterWet type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 7.0 L
Reserve amount 1.7 L
Carburetor
Manufacturer TEIKEI
Model ×quantity MV28 ×1
Spark plug
Manufacturer/Type NGK/DR8EA
Gap 0.6–0.7 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 74/20 (3.700)
Secondary reduction system Chain drive
Secondary reduction ratio 3.643
Number of drive chain
sprocket teeth (rear/front) 51/14
Transmission type Constant mesh 5-speed
Operation Left foot operationGear ratio 1st 2.250
2nd 1.476
3rd 1.125
4th 0.926
5th 0.793
Chassis
Frame type Diamond
Caster angle 25.83°
Trail 93 mm
Tires
Front
Type With tube
Size 130/80-18 M/C 66P
Manufacturer/ BRIDGESTONE/TW-203
model
Rear
Type With tube
Size 180/80-14 M/C 78P
Manufacturer/ BRIDGESTONE/TW-204
model
5RS-9-E1 (TW125) 8/23/02 11:37 AM Page 81

9-1
EAU01039
CONSUMER INFORMATION
9
EAU02944
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:
EAU01043
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. Vehicle identification number
EAU01042
Key identification number
The key identification number is
stamped into the key.
Record this number in the space pro-
vided and use it for reference when
ordering a new key.
1
1. Key identification number
1
6
5RS-9-E1 (TW125) 8/23/02 11:37 AM Page 85

9-2
CONSUMER INFORMATION
9
EAU03757
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
5RS-9-E1 (TW125) 8/23/02 11:37 AM Page 86