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EAU00634
Adjusting the throttle cable
free playThe throttle cable free play should
measure 3Ð5 mm at the throttle grip.
Periodically check the throttle cable
free play and, if necessary, adjust it
as follows.NOTE:
The engine idling speed must be cor-
rectly adjusted before checking and
adjusting the throttle cable free play.a.Free play
a
2 1
b
a
1.Loosen the locknut.
2.To increase the throttle cable
free play, turn the adjusting nut
in direction a. To decrease the
throttle cable free play, turn the
adjusting nut in direction b.
3.Tighten the locknut.1.Locknut
2.Adjusting nut
EAU03804
TiresTo maximize the performance, dura-
bility, 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
w8The 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.
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EWA00012
wBecause 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 air pressure
(measured on cold tires)
Load*FrontRear
Up to 90 kg175 kPa
(1.75 kg/cm
2
1.75 bar)200 kPa
(2.00 kg/cm
2
2.00 bar)
90 kgÐmaximum175 kPa
(1.75 kg/cm
2
1.75 bar)225 kPa
(2.25 kg/cm
2
2.25 bar)
Maximum load*180 kg
179 kg (CH, A)
*Total weight of rider, passenger, cargo and
accessories
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.
1a
1.Side wall
a.Tread depthMinimum tire tread depth
(front and rear)1.6 mm
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EAU03073
Changing the brake fluidHave 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 master cylinder and
caliper as well as the brake hoses
replaced at the intervals listed below
or whenever they are damaged or
leaking.
8Oil seals: Replace every two
years.
8Brake hoses: Replace every four
years.
EAU00744
Drive chain slackThe 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
a.Drive chain slack2.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. Drive chain slack:
25Ð40 mm
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SPECIFICATIONS
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78
9
Specifications
ModelTDR125
Dimensions
Overall length2,120 mm
(F, GB, IRL, B, P, GR, E)
2,185 mm (S, SF, D, CH, A)
Overall width840 mm
Overall height1,295 mm
Seat height850 mm
Wheel base1,405 mm
Ground clearance270 mm
Minimum turning radius2,200 mm
Basic weight (with oil and full
fuel tank)135 kg
136 kg (CH, A)
Engine
Engine typeLiquid cooled 2-stroke,
gasoline
Cylinder arrangementForward inclined single
cylinder
Displacement125 cm
3
Bore ´Stroke56.0 ´50.7 mm
Compression ratio6.6:1
Starting systemElectric starter
Lubrication systemSeparate lubrication
(Yamaha Autolube)Engine oil (2-cycle)
TypeYamalube 2 or equivalent
2-stroke engine oil
Capacity
Total amount1.2 L
Transmission oil
TypeSAE 10W30 SE motor oil
Capacity
Periodic oil change0.75 L
Total amount0.8 L
Cooling system capacity
(total amount)1.05 L
Air filterWet type element
Fuel
TypeRegular unleaded gasoline
Fuel tank capacity11 L
Reserve amount2.2 L
Carburetor
ManufacturerMIKUNI
Model ´quantityTM28SS ´1
EAU01038
SPECIFICATIONS
8-1
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SPECIFICATIONS
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9
8-2 Spark plug
Manufacturer/modelNGK / BR9ES
Spark plug gap0.7Ð0.8 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction systemHelical gear
Primary reduction ratio71/22 (3.227)
Secondary reduction systemChain drive
Secondary reduction ratio3.563
Number of drive chain
sprocket teeth (Rear/front)57/16
Transmission typeConstant mesh 6-speed
OperationLeft foot
Gear ratio1st2.833
2nd1.875
3rd1.412
4th1.143
5th0.957
6th0.818
Chassis
Frame typeSemi double cradle
Caster angle26¡
Trail116 mmTires
Front
TypeTubeless
Size100/90-18 56P
Manufacturer/BRIDGESTONE / TW53
modelDUNLOP / D602F
Rear
TypeTubeless
Size130/80-17 65P
Manufacturer/BRIDGESTONE / TW54
modelDUNLOP / D602
Maximum load*180 kg
179 kg (CH, A)
Air pressure (cold tire)
up to 90 kg load*
Front175 kPa (1.75 kg/cm
2, 1.75 bar)
Rear200 kPa (2.00 kg/cm2, 2.00 bar)
90 kg loadÐMaximum
load*
Front175 kPa (1.75 kg/cm2, 1.75 bar)
Rear225 kPa (2.25 kg/cm2, 2.25 bar)
* Total weight of rider, passenger, cargo and accessories
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SPECIFICATIONS
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EAU01064
Conversion tableAll 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.
METRICMULTIPLIERIMPERIAL
** mm´0.03937=** in
2 mm´0.03937=0.08 inCONVERSION TABLE
METRIC TO IMPERIAL
Metric unitMultiplierImperial unit
m¥kg7.233ft¥lb
Torquem¥kg86.794in¥lb
cm¥kg0.0723ft¥lb
cm¥kg0.8679in¥lb
Weightkg2.205lbg0.03527oz
Speedkm/hr0.6214mph
km0.6214mi
m3.281ft
Distancem1.094yd
cm0.3937in
mm0.03937in
cc (cm
3)0.03527oz (IMP liq.)
Volume/cc (cm3)0.06102cu¥in
CapacityL (liter)0.8799qt (IMP liq.)
L (liter)0.2199gal (IMP liq.)
kg/mm55.997lb/in
Misc.kg/cm
2
14.2234psi (lb/in
2)
Centigrade (¡C)9/5+32Fahrenheit (¡F)
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