2012 YAMAHA TTR50 tires

TABLE OF CONTENTS
LOCATION OF IMPORTANT
LABELS ............................................1-1
SAFETY INFORMATION .................. 2-1
DESCRIPTION .................................. 3-1
Left view .......................................... 3-1
Right view ........................................ 3-2
Controls and instruments ................3-3
INSTRUMENT AND CONTROL
FUNCTIONS....................................... 4-1
Main switch ..................................... 4-1
Handlebar switches ........................ 4-1
Speed limiter .................................. 4-2
Shift pedal ......................................4-3
Brake lever ..................................... 4-3
Brake pedal .................................... 4-3
Fuel tank cap .................................. 4-4
Fuel ................................................ 4-4
Fuel tank breather hose ................. 4-5
Fuel cock ........................................ 4-6
Starter (choke) lever ....................... 4-7
Seat ................................................ 4-7
Sidestand ....................................... 4-8
Starting circuit cut-off system ......... 4-8FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 5-1
OPERATION AND IMPORTANT
RIDING POINTS................................ 6-1
Starting and warming up a cold
engine ......................................... 6-1
Starting a warm engine .................. 6-2
Shifting ........................................... 6-2
Engine break-in .............................. 6-3
Parking ........................................... 6-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 7-1
Periodic maintenance chart for
the emission control system ....... 7-2
General maintenance and
lubrication chart .......................... 7-3
Checking the spark plug ................ 7-6
Engine oil ....................................... 7-7
Cleaning the air filter element ........ 7-8
Cleaning the spark arrester ......... 7-10
Adjusting the carburetor ............... 7-11
Adjusting the engine idling
speed ........................................ 7-11
Checking the throttle grip free
play ........................................... 7-12
Valve clearance ........................... 7-12
Tires ............................................. 7-13
Spoke wheels .............................. 7-14
Adjusting the clutch free play ....... 7-14Adjusting the brake lever free
play ........................................... 7-15
Adjusting the brake pedal free
play ........................................... 7-16
Checking the shift pedal ............... 7-16
Checking the front and rear brake
shoes ........................................ 7-17
Drive chain slack .......................... 7-17
Cleaning and lubricating
the drive chain .......................... 7-19
Checking and lubricating
the cables ................................. 7-19
Checking and lubricating
the throttle grip and cable ......... 7-20
Checking and lubricating
the brake lever .......................... 7-20
Checking and lubricating
the brake pedal ......................... 7-20
Checking and lubricating
the sidestand ............................ 7-21
Lubricating the swingarm pivots ... 7-21
Checking the front fork ................. 7-21
Checking the steering .................. 7-22
Checking the wheel bearings ....... 7-22
Battery .......................................... 7-23
Replacing the fuse ....................... 7-24
Supporting the motorcycle ........... 7-25
Front wheel .................................. 7-26
Rear wheel ................................... 7-27
Troubleshooting ........................... 7-29
Troubleshooting chart .................. 7-30
U1P686E0.book Page 1 Thursday, April 14, 2011 1:20 PM

LOCATION OF IMPORTANT LABELS
1-6
1Familiarize yourself with the following pictograms and read the explanatory text.
**.* kPa
*.** kgf/cm²
*.* psi**.* kPa
*.** kgf/cm²
*.* psi
Read the Owner’s manual.
This unit contains high-pressure
nitrogen gas.
Mishandling can cause
an explosion. Do not incinerate,
puncture or open.
Turn off the main switch after
riding to avoid draining the
battery.Use unleaded gasoline only.
Measure the tire pressure when
the tires are cold.
Adjust the tire pressure.
Improper tire pressure can
cause loss of control.
Loss of control can result in
severe injury or death.
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SAFETY INFORMATION
2-3
2


Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories to your motorcycle
can adversely affect stability and han-
dling if the weight distribution of the mo-
torcycle is changed. To avoid the
possibility of an accident, use extreme
caution when adding accessories to
your motorcycle. Use extra care when
riding a motorcycle that has added ac-
cessories. Here are some general
guidelines to follow if adding accesso-
ries to your motorcycle:
Operation of an overloaded vehicle
could cause an accident.


The weight of the operator must
not exceed 40.0 kg (88 lb).


Accessory weight should be kept
as low and close to the motorcycle
as possible. Securely pack your
heaviest items as close to the cen-
ter of the vehicle as possible and
make sure to distribute the weightas evenly as possible on both
sides of the motorcycle to mini-
mize imbalance or instability.


Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories are securely attached to
the motorcycle before riding.
Check accessory mounts fre-
quently.
Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
Never attach any large or heavy
items to the handlebar, front
fork, or front fender.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in aposition to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories, and
Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed to your vehicle that change any
of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or death.
You are responsible for injuries related
to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.
U1P686E0.book Page 3 Thursday, April 14, 2011 1:20 PM

SAFETY INFORMATION
2-4
2


Never install accessories that
would impair the performance of
your motorcycle. Carefully inspect
the accessory before using it to
make sure that it does not in any
way reduce ground clearance or
cornering clearance, limit suspen-
sion travel, steering travel or con-
trol operation.
Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution. If accesso-
ries are added to the handlebar
or front fork area, they must be
as lightweight as possible and
should be kept to a minimum.
Bulky or large accessories may
seriously affect the stability of
the motorcycle. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become un-
stable in cross winds.
Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-tor and may limit control ability,
therefore, such accessories are
not recommended.


Use caution when adding electri-
cal accessories. If electrical acces-
sories exceed the capacity of the
motorcycle’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Aftermarket Tires and Rims
The tires and rims that came with your
motorcycle were designed to match the
performance capabilities and to provide
the best combination of handling, brak-
ing, and comfort. Other tires, rims, siz-
es, and combinations may not be
appropriate. Refer to page 7-13 for tire
specifications and more information on
replacing your tires.
Transporting the Motorcycle
Be sure to observe following instruc-
tions before transporting the motorcy-
cle in another vehicle.


Remove all loose items from the
motorcycle.


Check that the fuel cock (if
equipped) is in the “OFF” position
and that there are no fuel leaks.


Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.


Shift the transmission in gear (for
models with a manual transmis-
sion).


Secure the motorcycle with tie-
downs or suitable straps that are
attached to solid parts of the mo-
torcycle, such as the frame or up-
per front fork triple clamp (and not,
for example, to rubber-mounted
handlebars or turn signals, or parts
that could break). Choose the lo-
cation for the straps carefully so
the straps will not rub against
painted surfaces during transport.


The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the mo-
torcycle will not bounce excessive-
ly during transport.
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-2
5
Control cablesMake sure that operation is smooth.
Lubricate if necessary.7-19
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.7-17, 7-19
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.7-13, 7-14
Shift pedalMake sure that operation is smooth.
Correct if necessary.7-16
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.7-20
Brake leverMake sure that operation is smooth.
Lubricate lever pivoting point if necessary.7-20
SidestandMake sure that operation is smooth.
Lubricate pivot if necessary.7-21
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Engine stop switchCheck operation.4-1 ITEM CHECKS PAGE
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-3
7
EAU3534B
General maintenance and lubrication chart TIP

From 7000 km (4200 mi) or 18 months, repeat the maintenance intervals starting from 3000 km (1800 mi) or 6 months.


Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
No. ITEM CHECKS AND MAINTENANCE JOBSINITIAL ODOMETER READINGS
1000 km
(600 mi) or
1 month or
30 hours3000 km
(1800 mi) or
6 months or
90 hours5000 km
(3000 mi) or
12 months or
150 hours
1*ClutchCheck operation.
Adjust if necessary.√√√
2*Front brakeCheck operation.
Adjust brake lever free play and replace brake shoes if
necessary.√√√
3*Rear brakeCheck operation.
Adjust brake pedal free play and replace brake shoes if
necessary.√√√
4*WheelsCheck runout, spoke tightness and for damage.
Tighten spokes if necessary.√√√
5*TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.√√
6*Wheel bearingsCheck bearings for smooth operation.
Replace if necessary.√√
7*Swingarm pivot bearingsCheck bearing assemblies for looseness.
Moderately repack with lithium-soap-based grease.√√
U1P686E0.book Page 3 Thursday, April 14, 2011 1:20 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-13
7
EAU39824
Tires To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA15370
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.
The tire air pressure must be
checked and adjusted on cold tires
(i.e., when the temperature of the
tires equals the ambient tempera-
ture).
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
Tire information
This motorcycle is equipped with spoke
wheels and tube tires.
WARNING
EWA10461
The front and rear tires should be of
the same make and design, other-
wise the handling characteristics of
the vehicle may be different, which
could lead to an accident.After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha Motor Co., Ltd.
WARNING
EWA15541


Have a Yamaha dealer replace
excessively worn tires. Operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
Standard tire air pressure:
Fr o nt :
100 kPa (1.00 kgf/cm², 15 psi)
Rear:
100 kPa (1.00 kgf/cm², 15 psi)
1. Tire sidewall
2. Tire tread depthMinimum tire tread depth (front and
rear):
4.0 mm (0.16 in)
12
Front tire:
Size:
2.50-10 4PR
Manufacturer/model:
CHENG SHIN/C183A
Rear tire:
Size:
2.50-10 4PR
Manufacturer/model:
CHENG SHIN/C183A
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-14
7


The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience.


It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a high-
quality product.


Ride conservatively after
changing a tire since the tire
must seat itself on the rim prop-
erly. Failure to allow proper
seating may cause tire failure,
which may result in damage to
the motorcycle and injury to the
rider.
EAU21943
Spoke wheels
WARNING
EWA10610
The wheels on this model are not de-
signed for use with tubeless tires.
Do not attempt to use tubeless tires
on this model.To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified wheels.

The wheel rims should be checked
for cracks, bends, warpage or oth-
er damage, and the spokes for
looseness or damage before each
ride. If any damage is found, have
a Yamaha dealer replace the
wheel. Do not attempt even the
smallest repair to the wheel. A de-
formed or cracked wheel must be
replaced.


The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
EAU46251
Adjusting the clutch free play The clutch free play must be checked
and, if necessary, adjusted as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
1. Remove the clutch adjusting
screw cover by removing the
screws.
2. Loosen the locknut.
3. Slowly turn the clutch adjusting
screw in direction (a) until resis-
tance is felt, and then turn it 1/8
turn in direction (b).1. Screw
2. Clutch adjusting screw cover
U1P686E0.book Page 14 Thursday, April 14, 2011 1:20 PM