2015 YAMAHA TTR50 wheel

PERIODIC MAINTENANCE AND ADJUSTMENT
7-22
7
EAU42082
Checking the front forkThe condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
To check the con dition
Check the inner tubes for scratches
and damage.
To check the operation 1. Place the vehicle on a level surfa- ce and hold it in an upright posi-
tion. WARNING! To avoi d injury,
securely support the vehicle so
there is no dan ger of it fallin g
over.
[EWA10752]
2. While applying the front brake, push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
NOTICE
ECA10591
If any damag e is foun d or the front
fork does not operate smoothly,
have a Yamaha d ealer check or re-
pair it.
EAU23284
Checkin g the steerin gWorn 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
periodic maintenance and lubrication
chart.
1. Place a stand under the engine to raise the front wheel off the
ground. (See page 7-26 for more
information.) WARNING! To
avoi d injury, securely support
the vehicle so there is no dan ger
of it fallin g over.
[EWA10752]
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 steer-
ing.
U2CJ82E0.book Page 22 Monday, June 23, 2014 2:58 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-23
7
EAU23292
Checking the wheel b earingsThe front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
EAU40447
BatteryThe battery is located under the seat.
(See page 4-8.)
This model is equipped with a VRLA
(Valve Regulated Lead Acid) battery.
There is no need to check the electro-
lyte or to add distilled water. However,
the battery coupler connection needs
to be checked to make sure that it is
securely connected.
WARNING
EWA10761
 Electrolyte is poisonous an d
d an gerous since it contains sul-
furic aci d, which causes severe
b urns. Avoi d any contact with1. Battery
2. Battery coupler
1
2
U2CJ82E0.book Page 23 Monday, June 23, 2014 2:58 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-26
7
EAU24351
Supporting the motorcycleSince this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy- cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under the frame in front of the
rear wheel.
2. Raise the front wheel off the ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placing a jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU24361
Front wheel
EAU56363
To remove the front wheel
WARNING
EWA10822
To avoi
d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Remove the front fork leg guard
from each front fork leg by remov-
ing the bolts.1. Front fork leg guard
2. Bolt
U2CJ82E0.book Page 26 Monday, June 23, 2014 2:58 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-27
72. Disconnect the brake cable at the
wheel by removing the brake lever
free play adjusting nut at the brake
camshaft lever, then remove the
cable from the brake camshaft le-
ver.
3. Loosen the axle nut. 4. Lift the front wheel off the ground
according to the procedure in the
previous section “Supporting the
motorcycle”.
5. Remove the axle nut and washer.
6. Pull the wheel axle out, and then remove the wheel. 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 the
fork leg.
1. Brake cable
2. Brake camshaft lever
3. Brake lever free play adjusting nut
1. Axle nut
2. Washer
21
1. Wheel axle
U2CJ82E0.book Page 27 Monday, June 23, 2014 2:58 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-28
7
3. Lower the front wheel so that it is
on the ground, and then put the
sidestand down.
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 lever free play ad-
justing nut on the brake cable.
TIPIf the spring was removed, install it
onto the brake cable with its smaller di-
ameter end facing down.6. Adjust the brake lever free play.(See page 7-15.)
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.
EAU25081
Rear wheel
EAU56731
To remove the rear wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Loosen the axle nut.
1. Slot
2. RetainerTi ghtenin g torque:
Axle nut: 35 Nm (3.5 m·kgf, 25 ft·lbf)
2
1
1. Brake cable
2. Spring
12
1. Axle nut
2. Washer
3. Drive chain slack adjusting nut
4. Locknut
5. Drive chain puller
1
5
4
3
2
U2CJ82E0.book Page 28 Monday, June 23, 2014 2:58 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-29
72. Remove the brake pedal free play
adjusting nut, and then discon-
nect the brake rod from the brake
camshaft lever.
3. Fully loosen the locknut and drive chain slack adjusting nut on each
end of the swingarm.
4. Lift the rear wheel off the ground according to the procedure on
page 7-26.
5. Remove the axle nut, washer and the drive chain puller at the left-
hand side, then pull the wheel axle
out together with the drive chain
puller from the right-hand side. 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 and
install the wheel.
7. Remove the wheel.
To install the rear wheel 1. Install the drive chain onto the rear sprocket, lift the rear wheel off the
ground, and then install the wheel
by inserting the wheel axle togeth-
er with the drive chain puller from
the right-hand side.TIPMake sure that the slot in the brake
shoe plate fits over the retainer on the
swingarm.2. Install the drive chain puller at theleft-hand side, washer and axle
nut.
1. Brake pedal free play adjusting nut
2. Brake rod
3. Brake camshaft lever
1
2
3
1. Wheel axle
1
1. Slot
2. Retainer
U2CJ82E0.book Page 29 Monday, June 23, 2014 2:58 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-30
7
3. Connect the brake rod to the
brake camshaft lever, and then in-
stall the brake pedal free play ad-
justing nut onto the brake rod.
4. Lower the rear wheel so that it is on the ground, and then put the
sidestand down.
5. Adjust the drive chain slack. (See page 7-18.)
6. Tighten the axle nut to the speci- fied torque.
7. Adjust the brake pedal free play. (See page 7-16.)
EAU25852
Trou bleshootin gAlthough Yamaha motorcycles receive
a thorough inspection before shipment
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 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
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checkin g the fuel system, d o
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water heaters or furnaces. Gasoline or
g
asoline vapors can i gnite or ex-
plo de, causin g severe injury or prop-
erty damag e.
Tightenin g torque:
Axle nut: 60 Nm (6.0 m·kgf, 43 ft·lbf)
U2CJ82E0.book Page 30 Monday, June 23, 2014 2:58 PM

MOTORCYCLE CARE AND STORAGE8-1
8
EAU37834
Matte color cautionNOTICE
ECA15193
Some models are equipped with
matte colored finished parts. Be
sure to consult a Yamaha dealer for
a d vice on what prod ucts to use be-
fore cleanin g the vehicle. Usin g a
b rush, harsh chemical pro ducts or
cleanin g compoun ds when cleanin g
these parts will scratch or damag e
their surface. Wax also shoul d not
b e applie d to any matte colored fin-
ishe d parts.
EAU40466
CareWhile the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a mo-
torcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its
life and optimize its performance.
Before cleanin g
1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and cov- ers as well as all electrical cou-
plers and connectors, including
the spark plug cap, are tightly in-
stalled.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod- ucts onto seals, gaskets, sprock-
ets, the drive chain and wheel
axles. Always rinse the dirt and
degreaser off with water.
Cleanin g
NOTICE
ECA10773
Avoi d usin g stron g aci dic wheel
cleaners, especially on spoked
wheels. If such pro ducts are
use d on har d-to-remove dirt, do
not leave the cleaner on the af-
fected area any lon ger than in-
structed . Also, thorou ghly rinse
the area off with water, immed i-
ately dry it, an d then apply a cor-
rosion protection spray.
 Improper cleanin g can d amage
plastic parts (such as cowlin gs,
panels, win dshiel ds, hea dlig ht
lenses, meter lenses, etc.) an d
the mufflers. Use only a soft,
clean cloth or spon ge with wa-
ter to clean plastic. However, if
the plastic parts cannot be thor-
ou ghly cleaned with water, di-
lute d mil d d eter gent with water
may be used . Be sure to rinse
U2CJ82E0.book Page 1 Monday, June 23, 2014 2:58 PM