2009 YAMAHA TTR50 brake

PERIODIC MAINTENANCE AND ADJUSTMENT
6-20
6
EAU23093
Checking and lubricating the
cables The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING! Damage to the outer
housing of cables may result in in-
ternal rusting and cause interfer-
ence with cable movement. Replace
damaged cables as soon as possi-
ble to prevent unsafe conditions.[EWA10711]EAU23111
Checking and lubricating the
throttle grip and cable The operation of the throttle grip should
be checked before each ride. In addi-
tion, the cable should be lubricated at
the intervals specified in the periodic
maintenance chart.
EAU43622
Checking and lubricating the
brake lever The operation of the brake lever should
be checked before each ride, and the
lever pivot should be lubricated if nec-
essary.
Recommended lubricant:
Yamaha Chain and Cable Lube or
engine oil
Recommended lubricant:
Lithium-soap-based grease
U1P683E0.book Page 20 Tuesday, April 29, 2008 2:05 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
6
EAU23182
Checking and lubricating the
brake pedal The operation of the brake pedal
should be checked before each ride,
and the pedal pivot should be lubricat-
ed if necessary.
EAU23202
Checking and lubricating the
sidestand The operation of the sidestand should
be checked before each ride, and the
sidestand pivot and metal-to-metal
contact surfaces should be lubricated if
necessary.
WARNING
EWA10731
If the sidestand does not move up
and down smoothly, have a Yamaha
dealer check or repair it. Otherwise,
the sidestand could contact the
ground and distract the operator, re-sulting in a possible loss of control.
EAUM1650
Lubricating the swingarm piv-
ots The swingarm pivots must be lubricat-
ed at the intervals specified in the peri-
odic maintenance and lubrication chart.
Recommended lubricant:
Lithium-soap-based grease
Recommended lubricant:
Lithium-soap-based grease
Recommended lubricant:
Lithium-soap-based grease
U1P683E0.book Page 21 Tuesday, April 29, 2008 2:05 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-22
6
EAU42081
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
Check the inner tubes for scratches
and damage.
To check the operation
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10751]
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
EAU23283
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground. (See page 6-25 for more
information.) WARNING! To
avoid injury, securely support
the vehicle so there is no danger
of it falling over.
[EWA10751]
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
U1P683E0.book Page 22 Tuesday, April 29, 2008 2:05 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-26
6 a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24360
Front wheel
EAU39792
To remove the front wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of itfalling over.
1. Remove the guard from each front
fork leg by removing the bolts.
2. Disconnect the brake cable at the
wheel by removing the brake lever
free play adjusting nut at the brakecamshaft lever, then remove the
cable from the brake camshaft le-
ver.
3. Loosen the axle nut.1. Front fork leg guard
2. Bolt
1. Brake cable
2. Brake camshaft lever
3. Brake lever free play adjusting nut
1. Axle nut
2. Washer
U1P683E0.book Page 26 Tuesday, April 29, 2008 2:05 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-27
64. Lift the front wheel off the ground
according to the procedure on
page 6-25.
5. Remove the axle nut and washer.
6. Pull the wheel axle out, and then
remove the wheel.
EAU39801
To install the front wheel
1. Lift the wheel up between the fork
legs.
2. Insert the wheel axle from the
right-hand side.TIPMake sure that the slot in the brake
shoe plate fits over the retainer on thefork leg.3. Lower the front wheel so that it is
on the ground.
4. Install the washer and axle nut,
and then tighten the axle nut to the
specified torque.
5. Connect the brake cable to the
brake camshaft lever, and then in-
stall the brake cable free play ad-
justing nut on the brake cable.
6. Adjust the brake lever free play.
(See page 6-15.)7. While applying the front brake,
push down hard on the handlebar
several times to check for proper
fork operation.
8. Install each front fork leg guard by
installing the bolts.1. Wheel axle
1. Slot
2. RetainerTightening torque:
Axle nut:
35 Nm (3.5 m·kgf, 25 ft·lbf)
2
1
U1P683E0.book Page 27 Tuesday, April 29, 2008 2:05 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-28
6
EAU25080
Rear wheel
EAU39771
To remove the rear wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of itfalling over.
1. Loosen the axle nut.
2. Remove the brake pedal free play
adjusting nut, and then disconnect
the brake rod from the brake cam-
shaft lever.3. Loosen the locknut and drive chain
adjusting nut on each end of the
swingarm.
4. Lift the rear wheel off the ground
according to the procedure on
page 6-25.
5. Remove the axle nut and washer,
then pull the wheel axle out.6. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
TIPThe drive chain does not need to be
disassembled in order to remove andinstall the wheel.
1. Axle nut
2. Washer
3. Drive chain slack adjusting nut
4. Locknut
1
4
3
2
1. Brake pedal free play adjusting nut
2. Brake rod
3. Brake camshaft lever
1
2
3
1. Wheel axle
U1P683E0.book Page 28 Tuesday, April 29, 2008 2:05 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-29
67. Remove the wheel.
EAU39781
To install the rear wheel
1. Install the drive chain onto the rear
sprocket, and then install the
wheel by inserting the wheel axle
from the right-hand side.TIPMake sure that the slot in the brake
shoe plate fits over the retainer on theswingarm.
2. Connect the brake rod to the brake
camshaft lever, and then install the
brake pedal free play adjusting nut
onto the brake rod.3. Adjust the drive chain slack. (See
page 6-17.)
4. Install the washer and axle nut,
and then lower the rear wheel so
that it is on the ground.
5. Tighten the axle nut to the speci-
fied torque.
6. Adjust the brake pedal free play.
(See page 6-16.)
EAU25851
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, 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 inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water
1. Slot
2. Retainer
Tightening torque:
Axle nut:
60 Nm (6.0 m·kgf, 43 ft·lbf)
U1P683E0.book Page 29 Tuesday, April 29, 2008 2:05 PM

MOTORCYCLE CARE AND STORAGE
7-2
7contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.


Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
electric components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.


For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning com-
pounds for plastic may leave
scratches on the windshield.
Test the product on a small hid-
den part of the windshield to
make sure that it does not leave
any marks. If the windshield isscratched, use a quality plastic
polishing compound after
washing.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain or near the seaSince sea salt is extremely corrosive,
carry out the following steps after each
ride in the rain or near the sea.
1. Clean the motorcycle with cold wa-
ter and a mild detergent, after the
engine has cooled down.
NOTICE: Do not use warm water
since it increases the corrosive
action of the salt.
[ECA10791]
2. Apply a corrosion protection spray
on all metal, including chrome- and
nickel-plated, surfaces to prevent
corrosion.After cleaning
1. Dry the motorcycle with a chamois
or an absorbing cloth.
2. Immediately dry the drive chain
and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally in-
duced discoloring of stainless-
steel exhaust systems can be re-
moved through polishing.)
4. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean-
er to remove any remaining dirt.
6. Touch up minor paint damage
caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely
before storing or covering it.
WARNING
EWA14501
Contaminants on the brakes or tires
can cause loss of control.
U1P683E0.book Page 2 Tuesday, April 29, 2008 2:05 PM