2015 YAMAHA TTR110 Owners Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
7-6
7
EAU40001
TIPThe air filter needs more frequent service if you are riding in unusually wet or dusty areas.
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-7
7
EAU18773
Removing an d installin g pan-
elsThe panels shown need to be removed
to perform some of the maintenance
jobs described in this chapter. Refer to
this section each time a panel needs to
be removed and installed.
EAU56170
Panel A
To remove the panel1. Remove the seat. (See page 4-8.)
2. Remove the bolts and the quick
fastener screws, and then take the
panel off. To install the panel
1. Place the panel in the original po-
sition, and then install the bolts
and the quick fastener screws.
2. Install the seat.
Panel B
To remove the panel1. Remove the seat. (See page 4-8.)
2. Remove the bolt, and then pull the panel off as shown.
1. Panel A
1
1. Panel B
1
1. Panel A
2. Bolt
3. Quick fastener screw
3
1
2
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
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7
To install the panel
1. Place the panel in the original po-
sition, and then install the bolt.
2. Install the seat.
EAU19605
Checkin g the spark plu gThe spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic main-
tenance and lubrication chart. In addi-
tion, the condition of the spark plug
can reveal the condition of the engine.
To remove the spark plu g
1. Remove the spark plug cap.
2. Remove the spark plug as shown, with the spark plug wrench includ-
ed in the owner’s tool kit. To check the spark plu
g
1. Check that the porcelain insulator around the center electrode of the
spark plug is a medium-to-light
tan (the ideal color when the vehi-
cle is ridden normally).
TIPIf the spark plug shows a distinctly dif-
ferent color, the engine could be oper-
ating improperly. Do not attempt to
diagnose such problems yourself. In-
stead, have a Yamaha dealer check
the vehicle.
1. Panel B
2. Bolt
3. Projection
3
1
2
1. Spark plug cap
1
1. Spark plug wrench
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-9
72. Check the spark plug for electrode
erosion and excessive carbon or
other deposits, and replace it if
necessary.
3. Measure the spark plug gap with a wire thickness gauge and, if nec-
essary, adjust the gap to specifi-
cation. To install the spark plu
g
1. Clean the surface of the spark plug gasket and its mating surfa-
ce, and then wipe off any grime
from the spark plug threads.
2. Install the spark plug with the spark plug wrench, and then tight-
en it to the specified torque.
TIPIf a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.3. Install the spark plug cap.
EAU39846
Engine oilThe engine oil level should be checked
before each ride. In addition, the oil
must be changed at the intervals spec-
ified in the periodic maintenance and
lubrication chart.
To check the en gine oil level
1. Place the motorcycle on a level surface and hold it in an upright
position. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles, remove the engine oil filler
cap, wipe the engine oil dipstick
clean, insert it back into the oil fill-
er hole (without screwing it in), and
then remove it again to check the
oil level.TIPThe engine oil should be between the
tip of the dipstick and the maximum
level mark.
Specifie d spark plu g:
NGK/CR6HSA1. Spark plug gapSpark plu g g ap:
0.6–0.7 mm (0.024–0.028 in)
Ti ghtenin g torque:
Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-10
7
4. If the engine oil is not between the
tip of the dipstick and the maxi-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
5. Insert the dipstick into the oil filler hole, and then tighten the oil filler
cap.
To chan ge the en gine oil
1. Start the engine, warm it up for several minutes, and then turn it
off.
2. Place an oil pan under the engine to collect the used oil. 3. Remove the engine oil filler cap,
the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
4. Install a new gasket and the drain bolt, and then tighten the drain
bolt to the specified torque.
5. Refill with the specified amount of the recommended engine oil, and
then install and tighten the oil filler
cap.
NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a dd ition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
 Make sure that no forei gn mate-
rial enters the crankcase.6. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
7. Turn the engine off, and then check the oil level and correct it if
necessary.
1. Engine oil filler cap
2. Engine oil dipstick
3. Maximum level mark
4. Tip of the engine oil dipstick
1
3
4
2
1. Engine oil drain bolt
2. Gasket
Ti ghtenin g torque:
Engine oil drain bolt: 20 Nm (2.0 m·kgf, 14 ft·lbf)
1
2
Recommended engine oil: See page 9-1.
Oil change quantity: 0.80 L (0.85 US qt, 0.70 Imp.qt)
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-11
7
EAU41638
Cleaning the air filter elementThe air filter element should be cleaned
or replaced at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean or, if necessary, re-
place the air filter element more
frequently if you are riding in unusually
wet or dusty areas.
To clean the air filter element
1. Remove panel A. (See page 7-7.)
2. Remove the air filter case cover by removing the screws.
3. Pull the sponge material and the air filter mesh out. 4. Clean the mesh with solvent, and
then wipe the solvent off.
5. Clean the sponge material with solvent, and then squeeze the re-
maining solvent out. WARNING!
Use only a d ed icated parts
cleanin g solvent. To avoi d the
risk of fire or explosion, do not
use gasoline or solvents with a
low flash point.
[EWA10432]
NOTICE:
To avoi d damag ing the foam
material, han dle it g ently an d
carefully, an d d o not twist or
wrin g it.
[ECA10512]
6. Apply oil of the recommended
type to the entire surface of the
sponge material, and then
squeeze the excess oil out.TIPThe sponge material should be wet but
not dripping.7. Insert the mesh and the spongematerial into the air filter case.
NOTICE: Make sure that the
mesh an d the spon ge material
are properly seate d in the air fil-
ter case. The en gine shoul d
never be operated without the
1. Air filter case cover
2. Screw
2
1
1. Sponge material
2. Air filter mesh
1
2
Recommen
ded oil:
Yamaha foam air filter oil or other
quality foam air filter oil
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-12
7
mesh an
d the spon ge material
installe d, otherwise the pis-
ton(s) an d/or cylin der(s) may
b ecome excessively worn.
[ECA15573]
8. Install the air filter case cover by
installing the screws.TIPMake sure that the spark plug lead is
inserted into the guide as shown.
9. Install the panel.
To clean the air filter check hose1. Check the hoses at the bottom of the air filter case for accumulated
dirt or water. 2. If dirt or water is visible, remove
the hoses, clean them, and then
reinstall them.1. Spark plug lead
2. Guide
1. Air filter check hose
11
2
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-13
7
EAU40422
Cleaning the spark arresterThe spark arrester should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
WARNING
EWA10981
 Always let the exhaust system
cool prior to touching exhaust
components.
 Do not start the en gine when
cleanin g the exhaust system.TIPMake sure to select a well-ventilated
area free of combustible materials to
clean the spark arrester.1. Remove the tailpipe by removing
the bolts, and then pulling it out of
the muffler. 2. Tap the tailpipe lightly, and then
use a wire brush to remove any
carbon deposits from the spark
arrester portion of the tailpipe and
inside of the tailpipe housing. 3. Insert the tailpipe into the muffler,
and then install and tighten the
bolts to the specified torque.
TIPMake sure to align the bolt holes when
inserting the tailpipe.
1. Tailpipe
2. Tailpipe bolt
1. Spark arrester
21
1
Ti
ghtenin g torque:
Tailpipe bolt: 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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