2012 YAMAHA TZR50 maintenance

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

Engine overheatingEWA10400
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, a\
nd then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the his-
sing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, \
provided that it is changed to the recommended
coolant as soon as possible.
Wait until the
engine has cooled.Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.
The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.
Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
6-39
6
1HD-F819D-E0 7/3/11 20:27 Página 76
2AS-F819D-E0.indd 7631/07/12 10:09

AAir filter element .......................................6-17
Anti-theft device housing .........................3-13
Autolube pump, adjusting........................6-28
BBattery......................................................6-32
Brake and clutch levers, checking andlubricating ..............................................6-29
Brake and shift pedals, checking and lubricating ..............................................6-29
Brake fluid level, checking .......................6-24
Brake fluid, changing ...............................6-25
Brake lever .................................................3-6
Brake light switches .................................6-23
Brake pedal ................................................3-6
Brake pedal free play, adjusting ..............6-22
CCables, checking and lubricating ............6-28
Carburetor, adjusting ...............................6-17
Care............................................................7-1
Catalytic converter .....................................3-9
Clutch lever ................................................3-5
Clutch lever free play, adjusting...............6-21
Coolant.....................................................6-14
Coolant temperature warning light ............3-3
Cowlings and panels, removing and installing ...................................................6-8
DDimmer switch ...........................................3-5
Drive chain slack ......................................6-25
Drive chain, cleaning and lubricating.......6-27
EEngine break-in ..........................................5-3
Engine idling speed .................................6-18 Engine oil .................................................3-10
Engine stop switch ....................................3-5
Engine trouble warning light ......................3-3
Engine, starting a warm .............................5-2
FFront and rear brake pads, checking ......6-23
Front brake lever free play, checking.......6-22
Front fork, checking .................................6-31
Fuel ............................................................3-8
Fuel cock..................................................3-11
Fuel consumption, tips for reducing ..........5-3
Fuel tank breather/overflow hose ..............3-9
Fuel tank cap .............................................3-7
Fuse, replacing.........................................6-33
HHandlebar switches ...................................3-4
Headlight bulb, replacing .........................6-34
Horn switch ................................................3-5
IIdentification numbers ...............................9-1
Ignition circuit cut-off system ..................3-14
Indicator and warning lights ......................3-2
LLicense plate light bulb, replacing ...........6-36
MMain switch/steering lock ..........................3-1
Maintenance and lubrication, periodic ......6-4
Maintenance, emission control system .....6-3
Matte color, caution ...................................7-1
Model label ................................................9-1
NNeutral indicator light.................................3-2
OOil level warning light .................................3-2
PParking .......................................................5-4
Part locations .............................................2-1
Pass switch ................................................3-5
RRear view mirrors .....................................3-13
SSafety information ......................................1-1
Seat ..........................................................3-12
Shift pedal ..................................................3-6
Shift pedal position, adjusting .................6-22
Shifting .......................................................5-2
Sidestand .................................................3-14
Sidestand, checking and lubricating .......6-30
Spark plug, checking ...............................6-11
Specifications.............................................8-1
Speedometer unit ......................................3-3
Start switch ................................................3-5
Starter (choke) lever .................................3-12
Starting a cold engine ................................5-1
Steering, checking ...................................6-31
Storage.......................................................7-3
TTachometer ................................................3-4
Tail/brake light bulb, replacing .................6-35
Throttle grip and cable, checking
and lubricating .......................................6-28
Throttle grip free play, adjusting ..............6-18
Tires .........................................................6-19
Tool kit ........................................................6-1
Transmission oil .......................................6-13
Troubleshooting .......................................6-37
Troubleshooting charts ............................6-38
Turn signal indicator light ...........................3-2
INDEX
1HD-F819D-E0 7/3/11 20:27 Página 85
2AS-F819D-E0.indd 8531/07/12 10:09