2001 YAMAHA TW125 tires

Adjusting the engine idling speed ....................6-14
Adjusting the throttle cable free play ................6-15
Adjusting the valve clearance ..........................6-16
Tires .................................................................6-16
Spoke wheels ..................................................6-18
Adjusting the clutch lever free play ..................6-19
Adjusting the brake lever free play...................6-20
Adjusting the brake pedal position and
free play .........................................................6-21
Adjusting the rear brake light switch ................6-22
Checking the front brake pads and
rear brake shoes ............................................6-23
Checking the brake fluid level ..........................6-24
Changing the brake fluid ..................................6-25
Drive chain slack ..............................................6-25
Lubricating the drive chain ...............................6-26
Checking and lubricating the cables ................6-27
Checking and lubricating the throttle grip
and cable .......................................................6-28
Checking and lubricating the brake and
shift pedals .....................................................6-28
Checking and lubricating the brake and
clutch levers ...................................................6-29
Checking and lubricating the sidestand ...........6-29
Lubricating the rear suspension .......................6-29
Checking the front fork .....................................6-30
Checking the steering ......................................6-30Checking the wheel bearings ...........................6-31
Battery..............................................................6-31
Replacing the fuse ...........................................6-34
Replacing the headlight bulb ...........................6-35
Replacing a turn signal light bulb .....................6-36
Replacing the tail/brake light bulb ....................6-37
Supporting the motorcycle ...............................6-37
Front wheel ......................................................6-38
Rear wheel .......................................................6-39
Troubleshooting ...............................................6-41
Troubleshooting chart ......................................6-42
MOTORCYCLE CARE AND STORAGE .............7-1
Care ...................................................................7-1
Storage ..............................................................7-4
SPECIFICATIONS ...............................................8-1
Conversion table ................................................8-5
CONSUMER INFORMATION ..............................9-1
Identification numbers ........................................9-1
Key identification number...................................9-1
Vehicle identification number .............................9-1
Model label.........................................................9-2
TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
789
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 6

4-1
EAU01114
PRE-OPERATION CHECKS
1
2
34
5
6
7
8
9 The condition of a vehicle is the ownerÕs responsibility. Vital components can start to deteriorate quickly and unexpect-
edly, even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leak-
age or loss of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thor-
ough visual inspection, to check the following points before each ride.
EAU03328
Pre-operation check list
ITEM CHECKS PAGE
Front brake9Check operation, free play, fluid level and vehicle for fluid leakage.
3-4, 6-20, 6-23Ð6-25
9Fill with DOT 4 brake fluid if necessary.
Rear brake9Check operation, condition and free play.
3-5, 6-21Ð6-239Adjust if necessary.
Clutch9Check operation, condition and free play.
3-4, 6-19Ð6-209Adjust if necessary.
Throttle grip and housing9Check smooth operation.
6-15, 6-289Lubricate if necessary.
Engine oil9Check oil level.
6-9Ð6-129Add oil if necessary.
Drive chain9Check chain slack and condition.
6-25Ð6-279Adjust if necessary.
Wheels and tires9Check tire air pressure, for wear, damage and spoke tightness.
6-16Ð6-199Tighten spokes if necessary.
Brake and shift pedal shafts9Check smooth operation.
6-289Lubricate if necessary.
Brake and clutch lever pivots9Check smooth operation.
6-299Lubricate if necessary.
Sidestand pivot9Check smooth operation.
6-299Lubricate if necessary.
Chassis fasteners9Make sure that all nuts, bolts and screws are properly tightened.
Ñ
9Tighten if necessary.
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 23

6-3
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
10
*Wheels¥ Check runout, spoke tightness and for damage.
¥ Tighten spokes if necessary.ÖÖÖÖ
11*Tires¥ Check tread depth and for damage.
¥ Replace if necessary.
¥ Check air pressure.
¥ Correct if necessary.ÖÖÖÖ
12*Wheel bearings¥ Check bearing for looseness or damage.ÖÖÖÖ
13*Swingarm¥ Check operation and for excessive play.ÖÖÖÖ
¥ Lubricate with lithium-soap-based grease. Every 24,000km
14 Drive chain¥ Check chain slack.
¥ Make sure that the rear wheel is properly aligned.
¥ Clean and lubricate.Every 500 km and after washing
the motorcycle in the rain
15*Steering bearings¥ Check bearing play and steering for roughness.ÖÖÖÖÖ
¥ Lubricate with lithium-soap-based greaseEvery 24,000km
16*Chassis fasteners¥ Make sure that all nuts, bolts and screws are properly tightened.ÖÖÖÖ Ö
17 Sidestand¥ Check operation.
¥ Lubricate.ÖÖÖÖ Ö
18*Sidestand switch¥ Check operation.ÖÖÖÖÖ Ö
19*Front fork¥ Check operation and for oil leakage.ÖÖÖÖ
20*Rear shock absorber
assembly pivoting
points¥ Check operation and shock absorber for oil leakage.ÖÖÖÖ
¥ Lubricate with lithium-soap-based grease.ÖÖ
21*Carburetor¥ Check starter (choke) operation.
¥ Adjust engine idling speed.ÖÖÖÖÖ Ö NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 6 12 18 24
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 32

6-16
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU00637
Adjusting the valve
clearanceThe 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.
EAU03563
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.
Tire air pressure
(measured on cold tires)
Load* Front Rear
150 kPa 150 kPa
Up to 80 kg 1.50 kg/cm
2, 1.50 kg/cm
2,
1.50 bar 1.50 bar
80 kgÐ150 kPa 175 kPa
Maximum *1.50 kg/cm
2, 1.75 kg/cm
2,
1.50 bar 1.75 bar
125 kPa 125 kPa
Off-road riding 1.25 kg/cm
2, 1.25 kg/cm
2,
1.25 bar 1.25 bar
Maximum load* 180 kg
* Total weight of rider, passenger, cargo and
accessories
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 45

6-17
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EWA00040
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 tire air pressure with
regard to the load.
8Check the tire condition and
air pressure before each ride.
1a
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. Side wall
a. Tread depthMinimum tire tread depth
(front and rear)1.6 mm
EW000079
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.
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 46

6-18
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9 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.
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.
EAU00685
Spoke wheelsTo 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 TypeBRIDGESTONE
130/80-18 66P TW31
REAR
Manufacturer Size Type
BRIDGESTONE
180/80-14M/C 78P TW34
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 47

7-3
MOTORCYCLE CARE AND STORAGE
1
2
3
4
5
67
8
9After cleaning
1. Dry the motorcycle with a
chamois or an absorbing cloth.
2. Immediately dry the drive chain
and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally
induced discoloring of stainless-
steel exhaust systems can be
removed through polishing.)
4. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal, includ-
ing chrome- and nickel-plated,
surfaces.
5. Use spray oil as a universal
cleaner to remove any remaining
dirt.
6. Touch up minor paint damage
caused by stones, etc.
7. Wax all painted surfaces.8. Let the motorcycle dry complete-
ly before storing or covering it.
EWA00001
w8Make sure that there is no oil
or wax on the brakes or tires.
If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild
detergent.
8Before operating the motorcy-
cle test its braking perfor-
mance and cornering behav-
ior.
ECA00013
cC8Apply spray oil and wax spar-
ingly and make sure to wipe
off any excess.
8Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
8Avoid using abrasive polish-
ing compounds as they will
wear away the paint.NOTE:
Consult a Yamaha dealer for advice
on what products to use.
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 74

7-5
MOTORCYCLE CARE AND STORAGE
1
2
3
4
5
67
8
96. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/centerstand.
7. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground.
Alternatively, turn the wheels a
little every month in order to pre-
vent the tires from becoming
degraded in one spot.
8. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
9. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a
month. Do not store the battery
in an excessively cold or warm
place (less than 0 ¡C or more
than 30 ¡C). For more informa-
tion on storing the battery, see
page 6-33.
NOTE:
Make any necessary repairs before
storing the motorcycle.
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 76