2002 YAMAHA TDR 125 ignition

EAU00009
TABLE OF CONTENTS
GIVE SAFETY THE RIGHT OF WAY ............... 1-1
DESCRIPTION .................................................. 2-1
Left view ......................................................... 2-1
Right view ...................................................... 2-2
Controls and instruments ............................... 2-3INSTRUMENT AND CONTROL FUNCTIONS
..... 3-1
Main switch/steering lock ............................... 3-1
Indicator and warning lights ........................... 3-2
Speedometer unit ........................................... 3-3
Tachometer .................................................... 3-3
Coolant temperature gauge ........................... 3-4
Handlebar switches ........................................ 3-4
Clutch lever .................................................... 3-6
Shift pedal ...................................................... 3-6
Brake lever ..................................................... 3-7
Brake pedal .................................................... 3-7
Fuel tank cap ................................................. 3-7
Fuel (except for Switzerland and Austria) ...... 3-8
Fuel (for Switzerland and Austria)................... 3-8
Catalytic converter
(for Switzerland and Austria) ........................ 3-9
2-stroke engine oil ........................................ 3-10
Fuel cock ...................................................... 3-11
Starter (choke) lever .................................... 3-12
Seat .............................................................. 3-12Helmet holder ............................................... 3-13
Adjusting the shock absorber assembly ........3-13
YEIS handling precautions ........................... 3-14
YPVS ........................................................... 3-15
Sidestand ..................................................... 3-15
Ignition circuit cut-off system ........................ 3-16
PRE-OPERATION CHECKS ............................ 4-1
Pre-operation check list ................................. 4-1
OPERATION AND IMPORTANT RIDING
POINTS ............................................................. 5-1
Starting a cold 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 the cowlings and
panel ............................................................ 6-5
123
456
5AE-28199-E5 honbun 7/6/01 10:18 AM Page 5

3-1
EAU00027
INSTRUMENT AND CONTROL FUNCTIONS
3
EAU00029
Main switch/steering lockThe main switch/steering lock con-
trols the ignition and lighting systems,
and is used to lock the steering. The
various 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.
EAU00040
LOCK
The steering is locked, and all electri-
cal systems are off. The key can be
removed.
To lock the steering1. Turn the handlebars all the way
to the left.
2. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.
To unlock the steeringPush the key in, and then turn it to
“OFF” while still pushing it.
EW000016
wNever turn the key to “OFF” or
“LOCK” while the motorcycle is
moving, otherwise the electrical
systems will be switched off,
which may result in loss of control
or an accident. Make sure that the
motorcycle is stopped before turn-
ing the key to “OFF” or “LOCK”.
EAU01574
.
.
(Parking)
The steering is locked, and the tail-
lights and auxiliary lights are on, but
all other electrical systems are off.
The key can be removed.
The steering must be locked before
the key can be turned to “
.
”.
ECA00043
cCDo not use the parking position for
an extended length of time, other-
wise the battery may discharge.
OFFON
LOCKPPUSH
YM-8
IGNITION
ON
OFF
LOCK
PARKING
a
b
a. Push.
b. Turn.
5AE-28199-E5 honbun 7/6/01 10:18 AM Page 11

3-6
EAU03890
Engine stop switch “#/$”
Set this switch to “#” before starting
the engine. Set this switch to “$” to
stop the engine in case of an emer-
gency, such as when the motorcycle
overturns or when the throttle cable is
stuck.
EAU00143
Start switch “,”
Push this switch to crank the engine
with the starter.
EC000005
cCSee page 5-1 for starting instruc-
tions prior to starting the engine.
EAU00152
Clutch leverThe 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
3-16 for an explanation of the ignition
circuit cut-off system.)
EAU00157
Shift pedalThe 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
6-speed constant-mesh transmission
equipped on this motorcycle.
INSTRUMENT AND CONTROL FUNCTIONS
3
21
1
1
1. Engine stop switch “#/$”
2. Start switch “,”1. Shift pedal 1. Clutch lever
5AE-28199-E5 honbun 7/6/01 10:18 AM Page 16

3-15
INSTRUMENT AND CONTROL FUNCTIONS
3
EAU00326
YPVSThis model is equipped with the
YPVS (Yamaha Power Valve
System). This system boosts engine
performance and efficiency by means
of a variable valve in the exhaust
port. The YPVS valve is constantly
adjusted in accordance with the
engine speed by a computer-con-
trolled servomotor.
Since the YPVS is an important part
of the engine and requires very
sophisticated adjustment, have a
Yamaha dealer, who has the neces-
sary professional knowledge and
experience, make this adjustment.
EC000023
cCThe YPVS has been set and exten-
sively tested at the Yamaha facto-
ry. Changing these settings with-
out sufficient technical knowledge
may result in poor performance of
or damage to the engine.YPVS operation noises can be heard
in the following instances:
8When the key is turned to “ON”
and the engine is started.
8When the engine stalls with the
key in the “ON” position.
EC000024
cCIf the YPVS does not operate, have
a Yamaha dealer check it.
EAU00330
SidestandThe sidestand is located on the left
side of the frame. Raise the side-
stand or lower it with your foot while
holding the motorcycle upright.NOTE:
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain situ-
ations. (See further down for an
explanation of the ignition circuit cut-
off system.)
1
1. YPVS
5AE-28199-E5 honbun 7/6/01 10:18 AM Page 25

3-16
EW000044
wThe motorcycle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up),
otherwise the sidestand could con-
tact the ground and distract the
operator, resulting in a possible
loss of control. Yamaha’s ignition
circuit cut-off system has been
designed to assist the operator in
fulfilling the responsibility of rais-
ing the sidestand before starting
off. Therefore, check this system
regularly as described below and
have a Yamaha dealer repair it if it
does not function properly.
EAU03720
Ignition circuit cut-off
systemThe ignition circuit cut-off system
(comprising the sidestand switch,
clutch switch and neutral switch) has
the following functions.
8It prevents starting when the
transmission is in gear and the
sidestand is up, but the clutch
lever is not pulled.
8It prevents starting when the
transmission is in gear and the
clutch lever is pulled, but the
sidestand is still down.
8It cuts the running engine when
the transmission is in gear and
the sidestand is moved down.
Periodically check the operation of
the ignition circuit cut-off system
according to the following procedure.
EW000045
wIf a malfunction is noted, have a
Yamaha dealer check the system
before riding.
INSTRUMENT AND CONTROL FUNCTIONS
3 5AE-28199-E5 honbun 7/6/01 10:18 AM Page 26

4-3
PRE-OPERATION CHECKS
4
NOTE:
Pre-operation checks should be made each time the motorcycle is used. Such an inspection can be accomplished in a
very short time; and the added safety it assures is more than worth the time involved.
EWA00033
wIf any item in the Pre-operation check list is not working properly, have it inspected and repaired before operat-
ing the motorcycle.Chassis fasteners•Make sure that all nuts, bolts and screws are properly tightened.
•Tighten if necessary.—
Instruments, lights, signals
and switches•Check operation.
•Correct if necessary.3-2–3-6
Sidestand switch•Check operation of ignition circuit cut-off system.
•If system is defective, have Yamaha dealer check vehicle.3-15–3-17 ITEM CHECKS PAGE
5AE-28199-E5 honbun 7/6/01 10:18 AM Page 30

5-1
EAU00372
OPERATION AND IMPORTANT RIDING POINTS
5
EAU00373
w8Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or func-
tion that you do not thorough-
ly understand.
8Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
8Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
EAU04271
Starting a cold engineIn order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
8The transmission is in the neutral
position.
8The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
w8Before starting the engine,
check the function of the igni-
tion circuit cut-off system
according to the procedure
described on page 3-17.
8Never ride with the sidestand
down.1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch
is set to “#”.3. Shift the transmission into the
neutral position.
NOTE:
When the transmission is in the neu-
tral position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical
circuit.4. Turn the starter (choke) on and
completely close the throttle.
(See page 3-12 for starter
(choke) operation.)
5. Start the engine by pushing the
start switch.NOTE:
If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank the
engine more than 10 seconds on any
one attempt.
5AE-28199-E5 honbun 7/6/01 10:18 AM Page 31

6-41
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU03087
TroubleshootingAlthough Yamaha motorcycles
receive a thorough inspection before
shipment from the factory, trouble
may occur during operation. Any
problem in the fuel, compression, or
ignition systems, for example, can
cause poor starting and loss of
power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcy-
cle require any repair, take it to a
Yamaha dealer, whose skilled techni-
cians have the necessary tools,
experience, and know-how to service
the motorcycle properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life
and can lead to expensive repair
bills.
5AE-28199-E5 honbun 7/6/01 10:18 AM Page 76