maintenance YAMAHA TT-R110E 2020 Owner's Guide

Periodic maintenance an d a djustment
7-26
7
EAU23273
Checkin g the front fork
The 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,
damage and excessive oil leakage.
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 d amage is foun d or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
EAU23285
Checkin g the steerin g
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
periodic maintenance and lubrication
chart.
1. Raise the front wheel off the ground. (See page 7-29.)
WARNING! To avoi d injury, se-
curely 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.
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Periodic maintenance an d a djustment
7-27
7
EAU23292
Checkin g the wheel b earings
The 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.
EAU23397
Battery
The battery is located behind panel B.
(See page 7-6.)
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 needs to be
checked and, if necessary, securely
fastened.
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 with
skin, eyes or clothin g an d al-
ways shiel d your eyes when
workin g near b atteries. In case
of contact, ad minister the fol-
lowin g FIRST AID.
EXTERNAL: Flush with plenty of water.
INTERNAL: Drink lar ge quan-
tities of water or milk an d im-
me diately call a physician.
EYES: Flush with water for 15 minutes and seek prompt
me dical attention.
1. Battery coupler
2. Battery band
3. Battery
2
3
1
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Periodic maintenance an d a djustment
7-28
7 
Batteries pro duce explosive hy-
d ro gen gas. Therefore, keep
sparks, flames, ci garettes, etc.,
away from the battery an d pro-
vi de sufficient ventilation when
char gin g it in an enclose d
space.
 KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
To char ge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
battery tends to discharge more quick-
ly if the vehicle is equipped with op-
tional electrical accessories.
NOTICE
ECA16522
To char ge a VRLA (Valve Re gulate d
Lea d Aci d) battery, a special (con-
stant-volta ge) battery char ger is re-
quire d. Using a conventional battery
char ger will dama ge the b attery.
To store the battery
1. If the model will not be used for more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
NOTICE: When removin g the
b attery, be sure the key is
turne d to “OFF” before discon-
nectin g the coupler.
[ECA16323]
2. If the battery will be stored for
more than two months, check it at
least once a month and fully char-
ge it if necessary. 3. Fully charge the battery before
installation. NOTICE: When in-
stallin g the b attery, be sure the
key is turned to “OFF” before
connectin g the coupler.
[ECA16931]
NOTICE
ECA16531
Always keep the b attery charged .
Storin g a d ischar ged battery can
cause permanent b attery damag e.
UB5185E0.book Page 28 Monday, June 17, 2019 9:04 AM

Periodic maintenance an d a djustment
7-29
7
EAU50432
Replacin g the fuse
The fuse is located inside the battery
coupler. (See page 7-27.)
If the fuse is blown, replace it as fol-
lows.
1. Turn the key to “OFF” and turn off all electrical circuits.
2. Disconnect the battery coupler.
3. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to
avoi d causin g extensive dam-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
4. Connect the battery coupler.
5. Turn the key to “ON”.
6. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU24351
Supportin g the motorcycle
Since 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.
1. Battery coupler
2. Fuse
3. Spare fuse
Specified fuse:
10.0 A
1 3
2
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Periodic maintenance an d a djustment
7-30
7
EAU24361
Front wheel
EAU56491
To remove the front wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no d anger of it
fallin g over.
1. Slide the rubber cover back at the
brake lever.
2. Loosen the locknut, and then turn the brake lever free play adjusting
bolt fully in direction (a).
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.
7. Remove the brake shoe assembly from the wheel hub by pulling it
out.
8. Remove the wheel.
To install the front wheel 1. Install the brake shoe assembly into the wheel hub.
2. Lift the wheel up between the fork legs.
TIP
Make sure that the slot in the brake
shoe plate fits over the retainer on the
fork leg.
1. Rubber cover
2. Brake lever free play adjusting bolt
3. Locknut
1. Axle nut
2. Washer
(a)
3
21
(a)
1. Wheel axle
1. Brake shoe assembly
1
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Periodic maintenance an d a djustment
7-31
7
3. Insert the wheel axle from the right
side, and then install the washer
and the axle nut.
4. Lower the front wheel so that it is on the ground, and then put the
sidestand down.
5. Tighten the axle nut to the speci- fied torque.
6. Adjust the brake lever free play. (See page 7-18.)
7. While applying the front brake, push down hard on the handlebar
several times to check for proper
fork operation.
EAU25081
Rear wheel
EAU56801
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. Disconnect the brake torque rod
from the brake shoe plate by re-
moving the cotter pin, the nut and
the bolt.
2. Remove the brake pedal free play adjusting nut, and then discon-
nect the brake rod at the brake
camshaft lever.
1. Slot
2. Retainer
Tightening torque:
Axle nut: 35 N·m (3.5 kgf·m, 26 lb·ft)
2
1
1. Brake torque rod
2. Cotter pin
3. Brake torque rod bolt and nut
4. Brake shoe plate
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Periodic maintenance an d a djustment
7-32
7 3. Fully loosen the locknut and the
drive chain slack adjusting nut on
both ends of the swingarm.
4. Loosen the axle nut.
5. Lift the rear wheel off the ground according to the procedure on
page 7-29.
6. Remove the axle nut, washer and drive chain puller on the left side,
and then pull the wheel axle out
together with the drive chain puller
from the right side. 7. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
TIP
The drive chain does not need to be
disassembled in order to remove and
install the wheel.
8. Remove the wheel.
To install the rear wheel 1. Install the drive chain onto the rear sprocket.
2. Lift the rear wheel off the ground, and then install the drive chain
puller and the wheel by inserting
the wheel axle from the right side.
3. Install the drive chain puller, wash- er and axle nut.
4. Lower the rear wheel so that it is on the ground, and then put the
sidestand down.
5. Install the brake rod onto the brake camshaft lever, and then in-
stall the brake pedal free play ad-
justing nut onto the brake rod.
6. Connect the brake torque rod to the brake shoe plate by installing
the bolt and nut, and then tighten
the nut to the specified torque.
1. Brake rod
2. Brake pedal free play adjusting nut
3. Brake camshaft lever
4. Wheel axle
1. Axle nut
2. Washer
3. Drive chain puller
4. Drive chain slack adjusting nut
5. Locknut
1 23 5
4
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Periodic maintenance an d a djustment
7-33
7
7. Insert a new cotter pin.
8. Adjust the drive chain slack. (See
page 7-21.)
9. Tighten the axle nut and both locknuts to the specified torque.
10. Adjust the brake pedal free play. (See page 7-19.)
EAU25853
Trou bleshootin g
Although 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, do
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.
Tightening torque:
Brake torque rod nut: 26 N·m (2.6 kgf·m, 19 lb·ft)
Ti ghtening torque:
Axle nut: 60 N·m (6.0 kgf·m, 44 lb·ft)
Locknut: 7 N·m (0.7 kgf·m, 5.2 lb·ft)
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Periodic maintenance an d a djustment
7-34
7
EAU67940
Trou bleshootin g chart
1. FuelThere is enough fuel.
There is no fuel.Supply fuel.
Check the battery.
The engine turns over
quickly.
The engine turns over
slowly.
The engine does not
start.
Check the battery.
The engine does not
start.
Check the ignition.
Wipe off with a dry
cloth and correct the
spark plug gap, or
replace the spark
plug.
Check the battery
lead connections,
and have a Yamaha
dealer charge the
battery if necessary.
2. BatteryThe battery is good.
3. IgnitionWet
Dry
There is compression.
There is no
compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.
Have a Yamaha dealer check the vehicle.
The engine does not
start.
Check the
compression.Have a Yamaha
dealer check the
vehicle.
Open the throttle
halfway and operate
the electric starter.
Remove the spark
plug and check
the electrodes.
Operate the electric
starter.
Check the fuel level
in the fuel tank.
Operate the electric
starter.
4. Compression
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11-1
11
Index
A
Air filter element, cleaning .................... 7-10
B
Battery .................................................. 7-27
Brake lever ............................................. 4-2
Brake lever, checking and
lubricating .......................................... 7-24
Brake lever free play, adjusting ............ 7-18
Brake pedal ............................................ 4-3
Brake pedal, checking and lubricating .......................................... 7-24
Brake pedal free play, adjusting........... 7-19
Brake shoes, checking ......................... 7-20
C
Cables, checking and lubricating ......... 7-23
Carburetor, adjusting ........................... 7-13
Care ........................................................ 8-1
Clutch free play, adjusting ................... 7-18
D
Drive chain, cleaning and lubricating ... 7-22
Drive chain slack .................................. 7-21
E
Engine break-in ...................................... 6-3
Engine idling speed .............................. 7-14
Engine oil ................................................ 7-8
Engine serial number............................ 10-1
Engine, starting a warm ......................... 6-2
Engine stop switch ................................. 4-1
F
Front fork, checking ............................. 7-26
Fuel......................................................... 4-4
Fuel cock ................................................ 4-6
Fuel tank breather hose ......................... 4-5
Fuel tank cap.......................................... 4-3
Fuse, replacing ..................................... 7-29
H
Handlebar switches................................ 4-1
I
Identification numbers.......................... 10-1
K
Kickstarter .............................................. 4-7
L
Labels, location ...................................... 1-1
M
Main switch ............................................ 4-1
Maintenance and lubrication, periodic ... 7-4
Maintenance, emission control
system.................................................. 7-3
Matte color, caution ............................... 8-1
Model label ........................................... 10-1
P
Panels, removing and installing .............. 7-6
Parking .................................................... 6-4
Part locations .......................................... 3-1
S
Safety information................................... 2-1
Seat......................................................... 4-8
Shifting .................................................... 6-2
Shift pedal............................................... 4-2
Shift pedal, checking ............................ 7-20
Shock absorber assembly ...................... 4-8
Sidestand ................................................ 4-9
Sidestand, checking and lubricating .... 7-25
Spark arrester, cleaning ........................ 7-12
Spark plug, checking .............................. 7-7
Specifications ......................................... 9-1
Starter (choke) lever ................................ 4-7
Starting and warming up a cold engine ................................................... 6-1
Starting circuit cut-off system ................ 4-9
Start switch ............................................. 4-1
Steering, checking ................................ 7-26
Storage ................................................... 8-4
Supporting the motorcycle ................... 7-29
Swingarm pivots, lubricating ................ 7-25
T
Throttle grip and cable, checking and lubricating ........................................... 7-23
Throttle grip free play, checking ........... 7-15
Tires ...................................................... 7-16
Tool kit .................................................... 7-2
Troubleshooting .................................... 7-33
Troubleshooting chart........................... 7-34
V
Valve clearance..................................... 7-15
Vehicle Emission Control Information label (For Canada) .............................. 10-2
Vehicle identification number ............... 10-1
W
Wheel bearings, checking..................... 7-27
Wheel (front).......................................... 7-30
Wheel (rear) ........................................... 7-31
Wheels .................................................. 7-17
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