2000 YAMAHA TDR 125 engine

3-7
INSTRUMENT AND CONTROL FUNCTIONS
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921
EAU00138Engine stop switch
The engine stop switch is a safety
device for use in an emergency such
as when the motorcycle overturns or
if trouble occurs in the throttle sys-
tem. Turn the switch to “#” to start
the engine.
In case of emergency, turn the switch
to “$” to stop the engine.
1. Engine stop switch
2. Start switch “,”
EAU00143Start switch “, ,
”
The starter motor cranks the engine
when pushing the start switch.
EC000005
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See starting instructions prior to
starting the engine.
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3-8
1
EAU00152Clutch lever
The clutch lever is located on the left
handlebar, and the ignition circuit cut-
off system is incorporated in the
clutch lever holder. Pull the clutch
lever to the handlebar to disengage
the clutch, and release the lever to
engage the clutch. The lever should
be pulled rapidly and released slowly
for smooth clutch operation. (Refer to
the engine starting procedures for a
description of the ignition circuit cut-
off system.)
EAU00158Front brake lever
The front brake lever is located on
the right handlebar. Pull it toward the
handlebar to apply the front brake.
1. Front brake lever
INSTRUMENT AND CONTROL FUNCTIONS
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1
1. Clutch lever
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1 N1
EAU00157Shift pedal
This motorcycle is equipped with a
constant-mesh 6-speed transmission.
The shift pedal is located on the left
side of the engine and is used in
combination with the clutch when
shifting.
1. Shift pedal
N. Neutral
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3-10
INSTRUMENT AND CONTROL FUNCTIONS
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EW000130
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Do not overfill the fuel tank. Avoid
spilling fuel on the hot engine. Do
not fill the fuel tank above the bot-
tom of the filler tube or it may
overflow when the fuel heats up
later and expands.
EAU00185
cC
Always wipe off spilled fuel imme-
diately with a dry and clean soft
cloth. Fuel may deteriorate painted
surfaces or plastic parts.
3 2
1
1. Filler tube
2. Filling nozzle
3. Fuel level
EAU01183
Fuel
(except for Switzerland and
Austria)
Make sure there is sufficient fuel in
the tank. Fill the fuel tank to the bot-
tom of the filler tube as shown in the
illustration.
EW000130
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Do not overfill the fuel tank. Avoid
spilling fuel on the hot engine. Do
not fill the fuel tank above the bot-
tom of the filler tube or it may
overflow when the fuel heats up
later and expands.
2
1 3 4
1. Filler tube
2. Filling nozzle
3. Leaf valve
4. Fuel level
EAU01184*
(for Switzerland and Austria)
Make sure there is sufficient fuel in
the tank. When refueling, be sure to
insert the filling nozzle into the filler
hole and fill the tank to the bottom of
the filler tube as shown in the illustra-
tion.
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INSTRUMENT AND CONTROL FUNCTIONS
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EAU00191
NOTE:
If knocking or pinging occurs, use a
different brand of gasoline or higher
octane grade.
EAU01084
Catalyzer
(for Switzerland and Austria)
This motorcycle is equipped with a
catalytic converter in the exhaust
chamber.
EW000128
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The exhaust system is hot during
and directly after engine operation.
Make sure the exhaust system has
cooled down before making any
adjustment to or lubricating the
motorcycle.
EC000114
cC
The following must be observed to
prevent a fire hazard or other dam-
ages.
8 8
Use only unleaded gasoline.
Use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
8 8
Never park this motorcycle in
an area that would cause a fire
hazard such as grass or other
materials that may easily burn.
8 8
Do not allow the engine to idle
for very long.Recommended fuel:
Regular unleaded gasoline
with a research octane
number of 91 or higher.
Fuel tank capacity:
Total:
11.0 L
Reserve:
2.2 L
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INSTRUMENT AND CONTROL FUNCTIONS
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9ON1
1. Arrow mark pointing to “ON”
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.ON
With the lever in this position, fuel
flows to the carburetor. Normal riding
is done with the lever in this position.
1
OFF
1. Arrow mark pointing to “OFF”
EAU02956
Two-stroke engine oil
Make sure the two-stroke engine oil
is at the specified level. Fill with oil as
necessary.
1
1. Filler cap
Recommended oil:
Yamalube 2 or 2-stroke
engine oil (JASO FC grade or
ISO EG-C, EG-D grade)
Oil quantity:
1.2 L
OFF: closed positionON: normal position
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1
a
b1
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!EAU02976
Starter (choke) “1”
Starting a cold engine requires a rich-
er air-fuel mixture. A separate starter
circuit supplies this mixture.
Move in direction ato turn on the
starter (choke).
Move in direction bto turn off the
starter (choke).
EAU01619Seat
To remove
Insert the key into the lock and turn it
clockwise.
1. Starter(choke) “1” 1. Unlock
3-13
INSTRUMENT AND CONTROL FUNCTIONS
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1
RES
1. Arrow mark pointing to “RES”
RES: reserve position
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EAU00326
Y.P.V.S. (Yamaha Power Valve
System)
The Y.P.V.S. is a vital part of the
engine and requires very sophisticat-
ed adjustment. Adjustment should be
left to a Yamaha dealer who has the
professional knowledge and experi-
ence to do so.
EC000023
cC
The Y.P.V.S. was set at the
Yamaha factory after many tests. If
the settings are disturbed by
someone without sufficient techni-
cal knowledge, poor engine perfor-
mance and damage may result.
The Y.P.V.S. operation can be heard
in the following instances:
8When the main switch is turned
on and the engine is started.
8When the engine stalls while the
main switch is on.
EC000024
cC
If the Y.P.V.S. does not operate,
ask a Yamaha dealer to inspect the
vehicle.
EAU00330Sidestand
This model is equipped with an igni-
tion circuit cut-off system. The motor-
cycle must not be ridden when the
sidestand is down. The sidestand is
located on the left side of the frame.
(Refer to page 5-1 for an explanation
of this system.)
INSTRUMENT AND CONTROL FUNCTIONS
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3-17
EW000044
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This motorcycle must not be oper-
ated with the sidestand in the
down position. If the stand is not
properly retracted, it could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha has designed into
this motorcycle a lockout system
to assist the operator in fulfilling
the responsibility of retracting the
sidestand. Please check carefully
the operating instructions listed
below and if there is any indication
of a malfunction, return the motor-
cycle to a Yamaha dealer immedi-
ately for repair.
EAU00331
Sidestand/clutch switch
operation check
Check the operation of the sidestand
switch and clutch switch against the
information below.
EW000045
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If improper operation is noted,
consult a Yamaha dealer immedi-
ately.
INSTRUMENT AND CONTROL FUNCTIONS
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9TURN THE MAIN SWITCH TO “ON” AND
THE ENGINE STOP SWITCH TO “#”.
TRANSMISSION IS IN GEAR AND
SIDESTAND IS UP.
PULL IN CLUTCH LEVER AND
PUSH THE START SWITCH.
ENGINE WILL START.
CLUTCH SWITCH IS OK.
SIDESTAND IS DOWN.
ENGINE WILL STALL.
SIDESTAND SWITCH IS OK.
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