2012 YAMAHA TZR50 ignition

SAFETY INFORMATION .....................1-1
DESCRIPTION.....................................2-1Left view ...........................................3-1
Right view .........................................3-1
Controls and instruments .................3-1
INSTRUMENT AND CONTROL
FUNCTIONS ........................................3-1 Main switch/steering lock .................3-1
Indicator and warning lights .............3-2
Turn signal indicator light ................3-2
Neutral indicator light ......................3-2
Oil level warning light ......................3-2
Coolant temperature warning light ...............................................3-3
Engine trouble warning light ............3-3
Speedometer unit .............................3-3
Tachometer .......................................3-4
Handlebar switches ..........................3-4
Pass switch ......................................3-5
Dimmer switch .................................3-5
Turn signal switch ............................3-5
Horn switch .....................................3-5
Engine stop switch ..........................3-5
Start switch ......................................3-5
Clutch lever .......................................3-5
Shift pedal.........................................3-6
Brake lever ........................................3-6
Brake pedal.......................................3-6
Fuel tank cap ....................................3-7 Fuel ...................................................3-8
Fuel tank breather/overflow hose .....3-9
Catalytic converter............................3-9
2-stroke engine oil ..........................3-10
Fuel cock ........................................3-11
Starter (choke) lever ......................3-12
Seat.................................................3-12
Anti-theft device housing................3-13
Rear view mirrors ............................3-13
Sidestand ........................................3-14
Ignition circuit cut-off system .........3-14
FOR YOUR SAFETY –
PRE-OPERATION CHECKS ...............4-1
OPERATION AND IMPORTANT
RIDING POINTS ..................................5-1 Starting a cold engine ......................5-1
Starting a warm engine ....................5-2
Shifting ..............................................5-2
Tips for reducing fuel consumption..................................5-3
Engine break-in.................................5-3
Parking ..............................................5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ....................................6-1 Owner’s tool kit .................................6-1
Periodic maintenance chart for the emission control system .........6-3 General maintenance and
lubrication chart ............................6-4
Removing and installing cowlings and panels .....................................6-8
Checking the spark plug ................6-11
Transmission oil ..............................6-13
Coolant ...........................................6-14
Air filter element ..............................6-17
Adjusting the carburetor .................6-17
Adjusting the engine idling speed..........................................6-18
Adjusting the throttle grip free play .......................................6-18
Tires ................................................6-19
Cast wheels ....................................6-21
Adjusting the clutch lever free play .......................................6-21
Checking the front brake lever free play .......................................6-22
Adjusting the brake pedal free play .......................................6-22
Adjusting the shift pedal position ...6-22
Brake light switches .......................6-23
Checking the front and rear brake pads ..................................6-23
Checking the brake fluid level ........6-24
Changing the brake fluid ................6-25
Drive chain slack.............................6-25
Cleaning and lubricating the drive chain ............................................6-27
TABLE OF CONTENTS
1HD-F819D-E0 7/3/11 20:27 Página 6
2AS-F819D-E0.indd 631/07/12 10:09

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock
The main switch/steering lock con-
trols the ignition and lighting systems,
and is used to lock the steering. The
various positions are described
below.
EAU10640
ON
All electrical circuits are supplied with
power, and the engine can be started.
The key cannot be removed.
TIP
The headlight, meter lighting and tai-
llight come on automatically when the
engine is started.
EAU10661
OFF
All electrical systems are off. The key
can be removed.
EWA10061
Never turn the key to “ ” or “ ”
while the vehicle is moving. Other-
wise the electrical systems will be
switched off, which may result in
loss of control or an accident.
EAU10683
LOCK
The steering is locked, and all electri-
cal systems are off. The key can be
removed.T
o lock the steering
1. Push
2. Turn
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “ ” position, and then turn it to
“ ” while still pushing it.
3. Remove the key.
WARNING
1HD-F819D-E0 7/3/11 20:27 Página 16
2AS-F819D-E0.indd 1631/07/12 10:09

EAU13212
Fuel
Make sure there is sufficient gasoline
in the tank.
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.
1. Before refueling, turn off the engi-ne and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the
vicinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.
1. Fuel tank filler tube
2. Maximum fuel level
3. Wipe up any spilled fuel imme-diately. NOTICE: Immediately
wipe off spilled fuel with a cle-
an, dry, soft cloth, since fuel
may deteriorate painted surfa-
ces or plastic parts.
[ECA10071]
4. Be sure to securely close the fuel tank cap.
EWA15151
Gasoline is poisonous and can cau-
se injury or death. Handle gasoline
with care. Never siphon gasoline by
mouth. If you should swallow some
gasoline or inhale a lot of gasoline vapor, or get some gasoline in your
eyes, see your doctor immediately.
If gasoline spills on your skin, wash
with soap and water. If gasoline
spills on your clothing, change your
clothes.
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 (3.65 US gal, 3.04 Imp.gal)
Fuel reserve amount: 2.2 L (0.58 US gal, 0.48 Imp.gal)
WARNING
WARNING
INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
1HD-F819D-E0 7/3/11 20:27 Página 23
2AS-F819D-E0.indd 2331/07/12 10:09

EAU15305
Sidestand
1. Sidestand
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.
TIP
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain
situations. (See the following section
for an explanation of the ignition cir-
cuit cut-off system.)
EWA10241
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 and have a Yama-
ha dealer repair it if it does not
function properly.
EAU15314
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.
TIP
This check is most reliable if perfor-
med with a warmed-up engine.
WARNING
INSTRUMENT AND CONTROL FUNCTIONS
3-14
3
1HD-F819D-E0 7/3/11 20:27 Página 29
2AS-F819D-E0.indd 2931/07/12 10:09

ITEMCHECKS PAGE
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. 3-4
Sidestand switch • Check operation of ignition circuit cut-off system.
• If system is not working correctly, have Yamaha dealer check vehicle. 3-14
FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-3
4
1HD-F819D-E0 7/3/11 20:27 Página 33
2AS-F819D-E0.indd 3331/07/12 10:09

EAU15951
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do
not understand, ask your Yamaha
dealer.
EWA10271
Failure to familiarize yourself with
the controls can lead to loss of
control, which could cause an acci-
dent or injury.
EAU16055
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.
See page 3-14 for more information. 1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ ” and make sure that the engine stop switch
is set to “ ”.
3. Shift the transmission into the neutral position. The neutral indi-
cator light should come on. If not,
ask a Yamaha dealer to check the
electrical circuit.
4. Turn the starter (choke) on and completely close the throttle.
(See page 3-12).
5. Start the engine by pushing the start switch.
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 preserve
the battery. Do not crank the
engine more than 10 seconds on
any one attempt.
6. After starting the engine, move the starter (choke) back halfway.
7. When the engine is warm, turn the starter (choke) off.
TIP
The engine is warm when it responds
quickly to the throttle with the starter
(choke) turned off.
ECA11042
For maximum engine life, never
accelerate hard when the engine is
cold!
NOTICE
WARNING
OPERATION AND IMPORTANT RIDING POINTS
5-1
5
1HD-F819D-E0 7/3/11 20:27 Página 34
2AS-F819D-E0.indd 3431/07/12 10:09

1. Bulb
3. Remove the burnt out bulb bypulling it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with the bulb) by pushing it in.
6. Install the license plate light cover by installing the screw.
EAU25871
Troubleshooting
Although Yamaha motorcycles recei-
ve a thorough inspection before ship-
ment 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, expe-
rience, 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.
EWA15141
When checking the fuel system, do
not smoke, and make sure there
are no open flames or sparks in the
area, including pilot lights from
water heaters or furnaces. Gasoli-
ne or gasoline vapors can ignite or
explode, causing severe injury or
property damage.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
6-37
6
1HD-F819D-E0 7/3/11 20:27 Página 74
2AS-F819D-E0.indd 7431/07/12 10:09

EAU25924
Troubleshooting charts
Starting problems or poor engine performance
Check the fuel level in
the fuel tank.
1. FuelThere is enough fuel.There is no fuel.Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.
2. CompressionThere is compression.
There is no compression.Check the ignition. Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.
3. IgnitionWipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.
4. BatteryThe engine turns over
quickly.
The engine turns over
slowly.The battery is good.
Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
Dry
WetOpen the throttle halfway and operate
the electric starter.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-38
6
1HD-F819D-E0 7/3/11 20:27 Página 75
2AS-F819D-E0.indd 7531/07/12 10:09