Yamaha TW125 User manual

PRINTED ON RECYCLED PAPER PRINTED IN JAPAN
2000·5–0.1×1(E) !
OWNER’S MANUAL
5EK-28199-E2
TW125
YAMAHA MOTOR CO.,LTD.

PRINTED ON RECYCLED PAPER PRINTED IN JAPAN
2000·5–0.1×1(E) !
OWNER’S MANUAL
5EK-28199-E2
TW125
YAMAHA MOTOR CO.,LTD.

EAU03338 INTRODUCTION
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Welcome to the Yamaha world of motorcycling!
As the owner of a TW125, you are benefiting from Yamaha’s vast experience and newest technology
regarding the design and manufacture of high-quality products, which have earned Yamaha a reputa-
tion for dependability.
Please take the time to read this manual thoroughly, so as to enjoy all advantages of your TW125.
The owner’s manual does not only instruct you in how to operate, inspect and maintain your motorcy-
cle, but also in how to safeguard yourself and others from trouble and injury.
In addition, the many tips given in this manual will help keep your motorcycle in the best possible
condition. If you have any further questions, do not hesitate to contact your Yamaha dealer.
The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first!
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EAU00005
IMPORTANT MANUAL INFORMATION
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Particularly important information is distinguished in this manual by the following notations:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
Failure to follow WARNING instructions could result in severe injury or death to the
motorcycle operator, a bystander, or a person inspecting or repairing the motorcycle.
A CAUTION indicates special precautions that must be taken to avoid damage to
the motorcycle.
A NOTE provides key information to make procedures easier or clearer.
Q
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cC
NOTE:
NOTE:
8This manual should be considered a permanent part of this motorcycle and should remain
with it even if the motorcycle is subsequently sold.
8Yamaha continually seeks advancements in product design and quality. Therefore, while this
manual contains the most current product information available at the time of printing, there
may be minor discrepancies between your motorcycle and this manual. If you have any ques-
tions concerning this manual, please consult your Yamaha dealer.
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IMPORTANT MANUAL INFORMATION
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EW000002
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PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING
THIS MOTORCYCLE.
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TW125
OWNER’S MANUAL
©2000 by Yamaha Motor Co., Ltd.
1st Edition, May 2000
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan.
EAU03337
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EAU00009 TABLE OF CONTENTS
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GIVE SAFETY THE RIGHT OF WAY..................1-1
DESCRIPTION ....................................................2-1
Left view.............................................................2-1
Right view ..........................................................2-2
Controls and instruments...................................2-3
INSTRUMENT AND CONTROL
FUNCTIONS........................................................3-1
Main switch........................................................3-1
Indicator lights....................................................3-1
Speedometer unit ..............................................3-2
Handlebar switches............................................3-2
Clutch lever........................................................3-4
Shift pedal..........................................................3-4
Brake lever.........................................................3-4
Brake pedal........................................................3-5
Fuel tank cap .....................................................3-5
Fuel....................................................................3-6
Fuel cock............................................................3-7
Starter (choke) knob “1”...................................3-8
Steering lock......................................................3-8
Seat ...................................................................3-9
Helmet holder.....................................................3-9
Shock absorber................................................3-10
Carrier..............................................................3-10
Luggage strap holders.....................................3-10
Sidestand.........................................................3-11
Ignition circuit cut-off system............................3-11
PRE-OPERATION CHECKS...............................4-1
Pre-operation check list .....................................4-1
OPERATION AND IMPORTANT RIDING
POINTS................................................................5-1
Starting the engine.............................................5-1
Starting a warm engine......................................5-2
Shifting...............................................................5-3
Recommended shift points
(for Switzerland only).......................................5-3
Tips for reducing fuel consumption....................5-4
Engine break-in..................................................5-4
Parking...............................................................5-5
PERIODIC MAINTENANCE AND MINOR
REPAIR................................................................6-1
Owner’s tool kit ..................................................6-1
Periodic maintenance and lubrication chart.......6-2
Removing and installing cowling and panels.....6-5
Checking the spark plug ....................................6-7
Engine oil and oil filter element..........................6-9
Cleaning the air filter element and
check hose.....................................................6-12
Adjusting the carburetor...................................6-14
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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......................................6-30
Checking 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
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1-1
EAU00021 QGIVE SAFETY THE RIGHT OF WAY
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Motorcycles are fascinating vehicles, which can give you an unsurpassed feeling of power and free-
dom. However, they also impose certain limits, which you must accept; even the best motorcycle
does not ignore the laws of physics.
Regular care and maintenance are essential for preserving value and operating condition of your
motorcycle. Moreover, what is true for the motorcycle is also true for the rider: good performance
depends on being in good shape. Riding under the influence of medication, drugs and alcohol is, of
course, out of the question. Motorcycle riders — more than car drivers — must always be at their
mental and physical best. Under the influence of even small amounts of alcohol, there is a tendency
to take dangerous risks.
Protective clothing is as essential for the motorcycle rider as seat belts are for car drivers and passen-
gers. Always wear a complete motorcycle suit (whether made of leather or tear-resistant synthetic
materials with protectors), sturdy boots, motorcycle gloves and a properly fitting helmet. Optimum pro-
tective wear, however, should not encourage carelessness. Although full-coverage helmets and suits,
in particular, create an illusion of total safety and protection, motorcyclists will always be vulnerable.
Riders who lack critical self-control run the risk of going too fast and are apt to take chances. This is
even more dangerous in wet weather. The good motorcyclist rides safely, predictably and defensively
— avoiding all dangers, including those caused by others.
Enjoy your ride!
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2-1
EAU00026
DESCRIPTION
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91. Fuel tank (page 3-5)
2. Fuel cock (page 3-7)
3. Helmet holder (page 3-9)
4. Luggage strap holders (page 3-10)
5. Chain adjusting plates (page 6-26)
6. Air filter element (page 6-12)
7. Shift pedal (page 3-4)
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Left view
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2-2
DESCRIPTION
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8. Carrier (page 3-10)
9. Battery (page 6-31)
10. Engine oil level check window (page 6-9)
11. Brake pedal (page 3-5, 6-21)
12. Owner’s tool kit (page 6-1)
13. Fuse (page 6-34)
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Right view
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2-3
DESCRIPTION
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91. Clutch lever (page 3-4, 6-19)
2. Left handlebar switches (page 3-2)
3. Speedometer unit (page 3-2)
4. Starter (choke) knob (page 3-8)
5. Main switch (page 3-1)
6. Indicator lights panel (page 3-1)
7. Right handlebar switches (page 3-3)
8. Brake lever (page 3-4, 6-20)
9. Throttle grip (page 6-15, 6-28)
10. Fuel tank cap (page 3-5)
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45678
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Controls and instruments
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3-1
EAU00027 INSTRUMENT AND CONTROL FUNCTIONS
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EAU00028
Main switch
The main switch controls the ignition
and lighting systems. The various
main switch positions are described
below.
EAU00036
ON
All electrical systems are supplied
with power, and the engine can be
started. The key cannot be removed.
EAU00038
OFF
All electrical systems are off. The key
can be removed.
EAU00056
Indicator lights
EAU00057
Turn signal indicator light “5”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
EAU00061
Neutral indicator light “N”
This indicator light comes on when
the transmission is in the neutral
position.
1. Turn indicator light “5”
2. High beam indicator light “&”
3. Neutral indicator light “N”
EAU00063
High beam indicator light “&”
This indicator light comes on when
the high beam of the headlight is
switched on.
OFF ON
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3-2
INSTRUMENT AND CONTROL FUNCTIONS
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EAU01087
Speedometer unit
The speedometer unit is equipped
with a speedometer, an odometer
and a tripmeter. The speedometer
shows riding speed. The odometer
shows the total distance traveled.
The tripmeter shows the distance
traveled since it was last set to zero
with the reset knob. The tripmeter
can be used to estimate the distance
that can be traveled with a full tank of
fuel. This information will enable you
to plan future fuel stops.
1. Speedometer
2. Odometer
3. Trip odometer
4. Reset knob
EAU00118
Handlebar switches
EAU00121
Dimmer switch
Set this switch to “&” for the high
beam and to “%” for the low beam.
1. Lights switch
2. Dimmer switch
3. Turn signal switch
4. Horn switch “*”
NOTE:
Only for the German model equipped
with a speed limiter:
The speed limiter prevents the motor-
cycle from exceeding a riding speed
of 80 km/h.
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3-3
INSTRUMENT AND CONTROL FUNCTIONS
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EAU00127
Turn signal switch
To signal a right-hand turn, push this
switch to “6”. To signal a left-hand
turn, push this switch to “4”. When
released, the switch returns to the
center position. To cancel the turn
signal lights, push the switch in after
it has returned to the center position.
EAU00129
Horn switch “*”
Press this switch to sound the horn.
EAU00134
Light switch
Set this switch to “'” to turn on
the auxiliary light, meter lighting and
taillight. Set the switch to “:” to turn
on the headlight also.
EAU00143
Start switch “,”
Push this switch to crank the engine
with the starter.
EC000005
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See page 5-1 for starting instruc-
tions prior to starting the engine.
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EAU00138
Engine stop switch
Set this switch to “$” to stop the
engine in case of an emergency,
such as when the motorcycle over-
turns or when the throttle cable is
stuck.
1. Engine stop switch
2. Start switch “,”
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3-4
INSTRUMENT AND CONTROL FUNCTIONS
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EAU00157
Shift pedal
The shift pedal is located on the left
side of the engine and is used in
combination with the clutch lever
when shifting the gears of the
5-speed constant-mesh transmission
equipped on this motorcycle.
1. Shift pedal
N. Neutral
EAU00152
Clutch lever
The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the han-
dlebar grip. To engage the clutch,
release the lever. The lever should
be pulled rapidly and released slowly
for smooth clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the igni-
tion circuit cut-off system. (See page
3-11 for an explanation of the ignition
circuit cut-off system.)
1. Clutch lever
EAU00158
Brake lever
The brake lever is located at the right
handlebar grip. To apply the front
brake, pull the lever toward the han-
dlebar grip.
1. Brake lever
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N
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3-5
INSTRUMENT AND CONTROL FUNCTIONS
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EAU00162
Brake pedal
The brake pedal is on the right side
of the motorcycle. To apply the rear
brake, press down on the brake
pedal.
1. Brake pedal
EAU01498
Fuel tank cap
To open the fuel tank cap
1. Insert the key into the lock and
turn it 1/4 turn counterclockwise.
2. Turn the fuel tank cap counter-
clockwise, and then pull it off.
1. Fuel tank cap
a. Unlock
b. Open
To close the fuel tank cap
1. Insert the fuel tank cap into the
tank opening with the key insert-
ed in the lock, and then turn the
cap clockwise.
2. Turn the key clockwise to the
original position, and then
remove it.
NOTE:
The fuel tank cap cannot be installed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly installed and
locked.
EWA00025
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Make sure that the fuel tank cap is
properly closed before riding.
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3-6
INSTRUMENT AND CONTROL FUNCTIONS
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EAU01183
Fuel
Make sure that there is sufficient fuel
in the tank. Fill the fuel tank to the
bottom of the filler tube as shown in
the illustration. EW000130
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8Do not overfill the fuel tank,
otherwise it may overflow
when the fuel warms up and
expands.
8Avoid spilling fuel on the hot
engine.
1. Filler tube
2. Fuel level
EAU00185
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Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted sur-
faces or plastic parts.
EAU00191
NOTE:
If knocking (or pinging) occurs, use
gasoline of a different brand or with a
higher octane grade.
Recommended fuel:
Regular unleaded gasoline
with a research octane number
of 91 or higher
Fuel tank capacity:
Total amount:
7.0 L
Reserve amount:
1.0 L
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INSTRUMENT AND CONTROL FUNCTIONS
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EAU03050
Fuel cock
The fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has three positions:
OFF
With the lever in this position, fuel will
not flow. Always return the lever to
this position when the engine is not
running.
1. Arrow mark positioned over “OFF” ON
With the lever in this position, fuel
flows to the carburetor. Normal riding
is done with the lever in this position.
1. Arrow mark positioned over “ON” RES
This indicates reserve. If you run out
of fuel while riding, move the lever to
this position. Fill the tank at the first
opportunity. Be sure to set the lever
back to “ON” after refueling!
1. Arrow mark positioned over “RES”
RES
ON
FUEL
OFF
1
OFF: Closed position
OFF
ON
FUEL
RES
1
RES
RES: Reserve position
ON FUEL
RES
OFF
1
ON
ON: Normal position
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3-8
INSTRUMENT AND CONTROL FUNCTIONS
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EAU03032
Starter (choke) knob “1”
Starting a cold engine requires a rich-
er air-fuel mixture, which is supplied
by the starter (choke).
Move the knob in direction ato turn
on the starter (choke).
Move the knob in direction bto turn
off the starter (choke).
1. Starter (choke) knob “1”
EAU02934
Steering lock
To lock the steering
1. Turn the handlebar all the way to
the right.
2. Open the steering lock cover,
and then insert the key.
3. Turn the key 1/8 turn counter-
clockwise, push it in while turning
the handlebar slightly to the left,
and then turn the key 1/8 turn
clockwise.
4. Check that the steering is locked,
remove the key, and then close
the lock cover.
1. Steering lock
2. Cover
To unlock the steering
1. Open the steering lock cover,
and then insert the key.
2. Push the key in, turn it 1/8 turn
counterclockwise so that it
moves out, and then release it.
3. Remove the key, and then close
the lock cover.
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