YAMAHA TZR50 2003 Owner's Manual

EAU12941
Brake pedal
1. Brake pedal
The brake pedal is on the right side of
the motorcycle. To apply the rear bra-
ke, press down on the brake pedal.
EAU13000
Fuel tank cap
1. Key over
2. Open
To remove the fuel tank cap
Insert the key into the lock and turn it
1/4 turn clockwise. The lock will be
released and the fuel tank cap can be
removed.
To install the fuel tank cap
1. Push the fuel tank cap into posi-
tion with the key inserted in the
lock.
2. Turn the key counterclockwise 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 loc-
ked.
EWA11140
s s
WARNING
Make sure that the fuel tank cap is
properly installed before riding.
1. Filling tube
2. Fuel level
EAU13270
Your Yamaha engine has been desig-
ned to use regular unleaded gasoline
with a research octane number of 91
or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. Use
of unleaded fuel will extend spark plug
life and reduce maintenance costs.
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
13,8 L (3.03 Imp.gal)
Fuel reserve amount:
2,2 L (0.48 Imp.gal)
3
INSTRUMENT AND CONTROL FUNCTIONS
3-5
1
1 22
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EAU13431
Catalytic converter
This model is equipped with a cataly-
tic converter in the exhaust system.
EWA10860
s s
WARNING
The exhaust system is hot after
operation. Make sure that the
exhaust system has cooled down
before doing any maintenance
work.
ECA10700
CAUTION
The following precautions must be
observed to prevent a fire hazard or
other damages.
Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
Never park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
Do not allow the engine to idle
too long.
EAU13460
2-stroke engine oil
1. 2-stroke engine oil tank
2. 2-stroke engine oil tank cap
Make sure that there is sufficient oil in
the 2-stroke engine oil tank. Add the
recommended 2-stroke engine oil if
necessary.
NOTE:
Make sure that the 2-stroke engine oil
tank cap is properly installed.
EAU13560
Fuel cock
1. Fuel reserve switch
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
RES OFFFUEL
Recommended oil:
Yamalube 2 or equivalent 2-stroke
engine oil (JASO grade “FC”, or
ISO grades “EG-C” or “EG-D”)
Oil quantity:
1,35 L (1,18 Imp.qt)
3
INSTRUMENT AND CONTROL FUNCTIONS
3-6
12
1
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ON
With the lever in this position, fuel
flows to the carburetor. Normal riding
is done with the lever in this position.
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!
EAU13590
Starter (choke) lever “q q”
Starting a cold engine requires a
richer air-fuel mixture, which is sup-
plied by the starter (choke).
Move the lever in direction (a) to turn
on the starter (choke).Move the lever in direction (b) to turn
off the starter (choke).
EAU13940
Seat
1. Seat
2. Seat lock
To remove the seat
1. Insert the key into the seat lock,
and then turn it clockwise.
2. While holding the key in that
position, lift the rear of the seat,
and then pull the seat off.
To install the seat
1. Insert the projection on the front
of the seat into the seat holder as
shown.
2. Push the rear of the seat down to
lock it in place.3. Remove the key.
NOTE:
Make sure that the seat is properly
secured before riding.
EAU14411
Storage compartment
U-lock
This storage compartment is desig-
ned to hold an optional genuine
Yamaha U-LOCK. (Other locks may
not fit.) When placing a U-LOCK in
the storage compartment, securely
fasten it with the straps. When the U-
LOCK is not in the storage compart-
ment, be sure to secure the straps to
prevent losing them.
3
INSTRUMENT AND CONTROL FUNCTIONS
3-7
b
a
1
2
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When storing the owner’s manual or
other documents in the storage com-
partment, be sure to wrap them in a
plastic bag so that they will not get
wet. When washing the motorcycle,
be careful not to let any water enter
the storage compartment.
EAU15300
Sidestand
1. Side stand
The sidestand is located on the left
side of the frame. Raise the sidestand
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
situations. (See further down for an
explanation of the ignition circuit cut-
off system.)
EWA10240
s s
WARNING
The vehicle must not be ridden with
the sidestand down, or if the sides-
tand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control. Yama-
ha’s ignition circuit cut-off system
has been designed to assist the
operator in fulfilling the responsibi-
lity of raising 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 pro-
perly.
EAU15311
Ignition circuit cut-off
system
The ignition circuit cut-off system
(comprising the sidestand switch,
clutch switch and neutral switch) has
the following functions.
It prevents starting when the
transmission is in gear and the
sidestand is up, but the clutch
lever is not pulled.
It prevents starting when the
transmission is in gear and the
clutch lever is pulled, but the
sidestand is still down.
It 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.
EWA10250
s s
WARNING
If a malfunction is noted, have a
Yamaha dealer check the system
before riding.
3
INSTRUMENT AND CONTROL FUNCTIONS
3-8
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INSTRUMENT AND CONTROL FUNCTIONS
3-9
3
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is turned on.
3. Turn the key on.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
This check is most reliable if performed with
a warmed-up engine.
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO YES NONOTE:
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NOTE:
This check is most reliable if performed with a warmed-up engine.
INSTRUMENT AND CONTROL FUNCTIONS
3-10
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EAU15591
The condition of a vehicle is the
owner’s responsibility. Vital compo-
nents can start to deteriorate quickly
and unexpectedly, even if the vehicle
remains unused (for example, as a
result of exposure to the elements).
Any damage, fluid leakage or loss of
tire air pressure could have serious
consequences. Therefore, it is very
important, in addition to a thorough
visual inspection, to check the follo-
wing points before each ride.
NOTE:
Pre-operation checks should be
made each time the vehicle is used.
Such an inspection can be accom-
plished in a very short time; and the
added safety it assures is more than
worth the time involved.
EWA11150
s s
WARNING
If any item in the Pre-operation
check list is not working properly,
have it inspected and repaired
before operating the vehicle.
4
PRE-OPERATION CHECKS
4-1
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EAU15603
Pre-operation check list
PRE-OPERATION CHECKS
4-2
4
ITEM CHECKS PAGE
• Check fuel level in fuel tank.
Fuel• Refuel if necessary.3-5
• Check fuel line for leakage.
• Check oil level in oil tank.
2-stroke engine oil• If necessary, add recommended oil to specified level. 3-6
• Check vehicle for oil leakage.
Transmission oil• Check oil level in transmission case.
• If necessary, add recommended oil to specified level.6-6
• Check coolant level in reservoir.
Coolant• If necessary, add recommended coolant to specified level. 6-8
• Check cooling system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check lever free play.
• Adjust if necessary.
Front brake• Check brake pads for wear. 6-14
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Rear brake• Replace if necessary. 6-14
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
Clutch• Lubricate cable if necessary.
6-12
• Check lever free play.
• Adjust if necessary.
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ITEM CHECKS PAGE
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-9
• If necessary, have Yamaha dealer adjust cable free play and
lubricate cable and grip housing.
Control cables• Make sure that operation is smooth.
• Lubricate if necessary.6-17
• Check chain slack.
Drive chain• Adjust if necessary.
6-16
• Check chain condition.
• Lubricate if necessary.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
6-10
• Check air pressure.
• Correct if necessary.
Brake and clutch levers• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.6-18
Sidestand• Make sure that operation is smooth.
• Lubricate pivot if necessary.6-18
Chassis fasteners• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.—
Instruments, lights, signals • Check operation.
and switches• Correct if necessary.—
Engine stop switch• Check operation.3-3
Sidestand switch• Check operation of ignition circuit cut-off system.
• If system is defective, have Yamaha dealer check vehicle.3-8
PRE-OPERATION CHECKS
4-3
4
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EAU16000
Starting a cold engine
In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
The transmission is in the neutral
position.
The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EWA10290
s s
WARNING
Before starting the engine,
check the function of the igni-
tion circuit cut-off system
according to the procedure
described on page 3-9.
Never 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 “f”.
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 3-7.)
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.
ECA11160
CAUTION
If the oil level warning light flickers
or remains on after starting, imme-
diately stop the engine, and then
check the engine oil level and the
vehicle for oil leakage. If necessary,
add engine oil, and then check thewarning light again. If the warning
light does not go off after starting
with sufficient engine oil, have a
Yamaha dealer check the electrical
circuit.
6. After starting the engine, move
the starter (choke) back halfway.
ECA11040
CAUTION
For maximum engine life, never
accelerate hard when the engine is
cold!
7. When the engine is warm, turn
the starter (choke) off.
NOTE:
The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off.
5
OPERATION AND IMPORTANT RIDING POINTS
5-1
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