2020 YAMAHA TT-R110E engine

Operation and important ri din g points
6-3
6
sion, an
d d rive train, which are
not desi gne d to withstan d the
shock of shiftin g when the
throttle grip is open.
EAU39912To start out an d accelerate
1. Close the throttle.
2. Shift into first gear and release the shift pedal. NOTICE: Always
close the throttle before shiftin g
g ears, otherwise damag e to the
en gine an d d rive train may re-
sult.
[ECA15462]
3. Open the throttle gradually.
4. Once the motorcycle has reached a speed high enough to change
gears, close the throttle.
5. Shift into second gear and release the shift pedal.
6. Open the throttle gradually.
7. Follow the same procedure when shifting to the next higher gear.
EAU16711To decelerate
1. Close the throttle and apply both the front and the rear brakes to
slow the motorcycle.
2. Downshift through the gears and shift the transmission into the neu-
tral position when the motorcycle
is almost completely stopped.
EAU39921
Engine break-in
There is never a more important period
in the life of your engine than the first 5
hours of riding. It is also important to
accustom the rider to the motorcycle
during this time. Please read the fol-
lowing information carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
5 hours of operation. The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided. However, momen-
tary full-throttle operation under load
(i.e., two to three seconds maximum)
does not harm the engine. Each full-
throttle acceleration should be fol-
lowed with a substantial rest period for
the engine. To allow the engine to cool
down from the temporary buildup of
heat, cruise at a lower engine speed.
After the first 5 hours of operation,
thoroughly check the motorcycle for
loose parts, oil leakage and any other
problems. Be sure to inspect and make
adjustments thoroughly, especially ca-
ble and drive chain slack and loose
spokes. In addition, check all fittings
and fasteners for looseness, and tight-
en if necessary.
NOTICE
ECA10271
If any en gine trou ble shoul d occur
d urin g the en gine break-in perio d,
imme diately have a Yamaha dealer
check the vehicle.
UB5185E0.book Page 3 Monday, June 17, 2019 9:04 AM

Operation and important rid ing points
6-4
6
EAU17172
Parkin g
When parking, stop the engine, re-
move the key from the main switch,
and then turn the fuel cock lever to
“OFF”.
WARNING
EWA10312
Since the en gine an d exhaust
system can become very hot,
park in a place where pe destri-
ans or chil dren are not likely to
touch them an d b e burne d.
 Do not park on a slope or on soft
groun d, otherwise the vehicle
may overturn, increasin g the
risk of a fuel leak an d fire.
 Do not park near grass or other
flamma ble materials which
mi ght catch fire.
UB5185E0.book Page 4 Monday, June 17, 2019 9:04 AM

Periodic maintenance an d a djustment
7-2
7
EAU17303
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replace-
ment, or repair of the emission control
devices and systems may be per-
formed by any repair establishment or
individual that is certified (if applicable).
Yamaha dealers are trained and equipped to perform these particular
services.
EAU17312
Owner’s tool kit
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.
TIP
If you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you.
UB5185E0.book Page 2 Monday, June 17, 2019 9:04 AM

Periodic maintenance an d a djustment
7-3
7
EAU69172
Perio dic maintenance chart for the emission control system
TIP
 From 7000 km (4200 mi) or 18 months, repeat the maintenance intervals
starting from 3000 km (1800 mi) or 6 months.
 Items marked with an asterisk should be performed by a Yamaha dealer as
they require special tools, data and technical skills.
No. ITEM 13 5
0.6 1.8 3 16 12
30 90 150
1 *Fuel line • Check fuel hoses for cracks or
damage.
• Replace if necessary. √√
2Spark plu g• Check condition.
• Adjust gap and clean.
√√
3 *Valve clearance • Check and adjust valve clear-
ance when engine is cold. √
4 Air filter element • Clean with solvent.
• Replace if necessary.
√√
5 *Crankcase
breather
system • Check ventilation hose for
cracks or damage and drain
any deposits.
• Replace if necessary. √√ √
6 *Car buretor • Check engine idling speed and
starter operation.
• Adjust if necessary. √√ √
7 Exhaust system • Check for leakage.
• Tighten if necessary.
• Replace gasket(s) if necessary. √√
8 *Spark arrester • Clean. √
9En gine oil • Change (warm engine before
draining). √√ √X 1000 km
X 1000 mi month
CHECKS AND
MAINTENANCE JOBS
hours
INITIALODOMETER READINGS
UB5185E0.book Page 3 Monday, June 17, 2019 9:04 AM

Periodic maintenance an d a djustment
7-7
7
EAU19607
Checkin g the spark plu g
The 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).
TIP
If 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.
2. Check the spark plug for electrodeerosion 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.
1. Spark plug cap
1. Spark plug wrench
1
1
Specified spark plu g:
NGK/CR6HSA
1. Spark plug gap
Spark plu g g ap:
0.6–0.7 mm (0.024–0.028 in)
UB5185E0.book Page 7 Monday, June 17, 2019 9:04 AM

Periodic maintenance an d a djustment
7-8
7 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.
TIP
If 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.
EAU39848
Engine oil
The 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 filler
hole (without screwing it in), and
then remove it again to check the
oil level.
TIP
The engine oil should be between the
tip of the dipstick and the maximum
level mark.
Tightenin g torque:
Spark plug: 13 N·m (1.3 kgf·m, 9.6 lb·ft)
1. Engine oil filler cap
2. O-ring
3. Engine oil dipstick
4. Maximum level mark
5. Tip of the engine oil dipstick
1
4
5
3
2
UB5185E0.book Page 8 Monday, June 17, 2019 9:04 AM

Periodic maintenance an d a djustment
7-9
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. Check the O-ring for damage, and replace it if necessary.
6. 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.
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 specified . 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. Check the O-ring for damage, and replace it if necessary.
7. Install and tighten the engine oil filler cap.
8. 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.
1. Engine oil drain bolt
2. Gasket
Tightening torque:
Engine oil drain bolt: 20 N·m (2.0 kgf·m, 15 lb·ft)
12
Recommended engine oil:
See page 9-1.
Oil change quantity: 0.80 L (0.85 US qt, 0.70 Imp.qt)
1. Engine oil filler cap
2. O-ring
2
1
UB5185E0.book Page 9 Monday, June 17, 2019 9:04 AM

Periodic maintenance an d a djustment
7-10
7 9. Turn the engine off, and then
check the oil level and correct it if
necessary.
EAU41638
Cleanin g the air filter element
The 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 7-6.)
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.
1. Air filter case cover
2. Screw
1. Sponge material
2. Air filter mesh
2
1
1
2
UB5185E0.book Page 10 Monday, June 17, 2019 9:04 AM