2012 YAMAHA TTR110 maintenance

PERIODIC MAINTENANCE AND ADJUSTMENT
7-28
7
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel1. Stabilize the rear of the motorcycle by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der 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.
EAU24360
Front wheel
EAU41815
To remove the front wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of it
falling 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.1. Rubber cover
2. Brake lever free play adjusting bolt
3. Locknut
(a)
3
2
1
(a)
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-29
74. 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.
EAU41693
To install the front wheel 1. Install the brake shoe assembly into the wheel hub.
2. Lift the wheel up between the fork legs.TIPMake sure that the slot in the brake
shoe plate fits over the retainer on the
fork leg.
3. Insert the wheel axle from theright-hand 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.)
1. Axle nut
2. Washer
1. Wheel axle
1. Brake shoe assembly
1
1. Slot
2. RetainerTightening torque:Axle nut:35 Nm (3.5 m ·kgf, 25 ft· lbf)
21
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-30
7
7. While applying the front brake,
push down hard on the handlebar
several times to check for proper
fork operation.
EAU25080
Rear wheel
EAU41645
To remove the rear wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Disconnect the brake torque rodfrom 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 disconnect
the brake rod at the brake cam-
shaft lever.
3. Fully loosen the locknut and the drive chain slack adjusting nut on
both ends of the swingarm.1. Brake torque rod
2. Cotter pin
3. Brake torque rod bolt and nut
4. Brake shoe plate
1. Brake rod
2. Brake pedal free play adjusting nut
3. Brake camshaft lever
4. Wheel axle
U5B684E0.book Page 30 Monday, June 13, 2011 4:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-31
74. Loosen the axle nut.
5. Lift the rear wheel off the ground
according to the procedure on
page 7-28.
6. 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.
7. 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.8. Remove the wheel.
EAU41654
To install the rear wheel1. 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-hand
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 install the
brake pedal free play adjusting 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.
7. Insert a new cotter pin.
8. Adjust the drive chain slack. (See page 7-20.)
9. Tighten the axle nut to the speci- fied torque.
10. Adjust the brake pedal free play. (See page 7-19.)
1. Axle nut
2. Washer
3. Drive chain puller
4. Drive chain slack adjusting nut
5. Locknut
1 2
3 5
4
Tightening torque:
Brake torque rod nut:26 Nm (2.6 m ·kgf, 19 ft· lbf)
Tightening torque: Axle nut:60 Nm (6.0 m ·kgf, 43 ft· lbf)
U5B684E0.book Page 31 Monday, June 13, 2011 4:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-32
7
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 heaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
U5B684E0.book Page 32 Monday, June 13, 2011 4:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-33
7
EAU25903
Troubleshooting chart
Check the fuel level in
the fuel tank.1. Fuel
There 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. Compression
There 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. Ignition
Wipe 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. Battery
The 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.
DryWet
Open the throttle halfway and operate
the electric starter.
U5B684E0.book Page 33 Monday, June 13, 2011 4:46 PM

INDEXAAir filter element, cleaning..................... 7-11BBattery................................................... 7-26
Brake lever .............................................. 4-2
Brake lever, checking and lubricating ... 7-23
Brake lever free play, adjusting............. 7-18
Brake pedal ............................................. 4-3
Brake pedal, checking and lubricating ........................................... 7-23
Brake pedal free play, adjusting............ 7-19
Brake shoes, checking .......................... 7-20CCables, checking and lubricating .......... 7-22
Carburetor, adjusting ............................ 7-14
Care ........................................................ 8-1
Clutch free play, adjusting..................... 7-17DDrive chain, cleaning and lubricating .... 7-22
Drive chain slack ................................... 7-20EEngine break-in ....................................... 6-3
Engine idling speed............................... 7-14
Engine oil ................................................ 7-9
Engine, starting a warm .......................... 6-2
Engine stop switch .................................. 4-2FFront fork, checking .............................. 7-24
Fuel ......................................................... 4-3
Fuel cock................................................. 4-5
Fuel tank breather hose .......................... 4-5
Fuel tank cap .......................................... 4-3
Fuse, replacing ..................................... 7-27
HHandlebar switches ................................ 4-1IIdentification numbers .......................... 10-1KKickstarter............................................... 4-6LLabels, location....................................... 1-1MMain switch ............................................. 4-1
Maintenance and lubrication, periodic .... 7-4
Maintenance, emission control system... 7-3
Matte color, caution ................................ 8-1
Model label ........................................... 10-1PPanels, removing and installing .............. 7-7
Parking ................................................... 6-4
Part locations .......................................... 3-1SSafety information................................... 2-1
Seat ........................................................ 4-7
Shifting.................................................... 6-2
Shift pedal............................................... 4-2
Shift pedal, checking ............................ 7-19
Shock absorber assembly ...................... 4-7
Sidestand................................................ 4-8
Sidestand, checking and lubricating ..... 7-24
Spark arrester, cleaning ....................... 7-13
Spark plug, checking .............................. 7-8
Specifications ......................................... 9-1
Starter (choke) lever ............................... 4-6
Starting and warming up a cold engine .................................................. 6-1
Starting circuit cut-off system ................. 4-8 Start switch.............................................. 4-2
Steering, checking................................. 7-25
Storage.................................................... 8-3
Supporting the motorcycle .................... 7-28
Swingarm pivots, lubricating ................. 7-24
TThrottle grip and cable, checking and
lubricating ........................................... 7-23
Throttle grip free play, checking ............ 7-15
Tires ...................................................... 7-15
Tool kit..................................................... 7-2
Troubleshooting .................................... 7-32
Troubleshooting chart ........................... 7-33VValve clearance..................................... 7-15
Vehicle Emission Control Information label (For Canada) .............................. 10-2
Vehicle identification number ................ 10-1WWheel bearings, checking ..................... 7-25
Wheel (front) ......................................... 7-28
Wheel (rear) .......................................... 7-30
Wheels .................................................. 7-17
U5B684E0.book Page 1 Monday, June 13, 2011 4:46 PM