2011 YAMAHA TTR50 air filter

TABLE OF CONTENTS
LOCATION OF IMPORTANT
LABELS ............................................1-1
SAFETY INFORMATION .................. 2-1
DESCRIPTION .................................. 3-1
Left view .......................................... 3-1
Right view ........................................ 3-2
Controls and instruments ................3-3
INSTRUMENT AND CONTROL
FUNCTIONS....................................... 4-1
Main switch ..................................... 4-1
Handlebar switches ........................ 4-1
Speed limiter .................................. 4-2
Shift pedal ......................................4-3
Brake lever ..................................... 4-3
Brake pedal .................................... 4-3
Fuel tank cap .................................. 4-4
Fuel ................................................ 4-4
Fuel tank breather hose ................. 4-5
Fuel cock ........................................ 4-6
Starter (choke) lever ....................... 4-7
Seat ................................................ 4-7
Sidestand ....................................... 4-8
Starting circuit cut-off system ......... 4-8FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 5-1
OPERATION AND IMPORTANT
RIDING POINTS................................ 6-1
Starting and warming up a cold
engine ......................................... 6-1
Starting a warm engine .................. 6-2
Shifting ........................................... 6-2
Engine break-in .............................. 6-3
Parking ........................................... 6-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 7-1
Periodic maintenance chart for
the emission control system ....... 7-2
General maintenance and
lubrication chart .......................... 7-3
Checking the spark plug ................ 7-6
Engine oil ....................................... 7-7
Cleaning the air filter element ........ 7-8
Cleaning the spark arrester ......... 7-10
Adjusting the carburetor ............... 7-11
Adjusting the engine idling
speed ........................................ 7-11
Adjusting the throttle cable free
play ........................................... 7-12
Valve clearance ........................... 7-13
Tires ............................................. 7-13
Spoke wheels .............................. 7-14
Adjusting the clutch free play ....... 7-15Adjusting the brake lever free
play ........................................... 7-15
Adjusting the brake pedal free
play ........................................... 7-16
Checking the shift pedal ............... 7-17
Checking the front and rear brake
shoes ........................................ 7-17
Drive chain slack .......................... 7-18
Cleaning and lubricating
the drive chain .......................... 7-19
Checking and lubricating
the cables ................................. 7-20
Checking and lubricating
the throttle grip and cable ......... 7-20
Checking and lubricating
the brake lever .......................... 7-20
Checking and lubricating
the brake pedal ......................... 7-21
Checking and lubricating
the sidestand ............................ 7-21
Lubricating the swingarm pivots ... 7-21
Checking the front fork ................. 7-22
Checking the steering .................. 7-22
Checking the wheel bearings ....... 7-23
Battery .......................................... 7-23
Replacing the fuse ....................... 7-25
Supporting the motorcycle ........... 7-25
Front wheel .................................. 7-26
Rear wheel ................................... 7-28
Troubleshooting ........................... 7-29
Troubleshooting chart .................. 7-31
U1P685E0.book Page 1 Tuesday, April 20, 2010 3:18 PM

DESCRIPTION
3-1
3
EAU10410
Left view
12 34 5
76
1. Fuel cock (page 4-6)
2. Throttle stop screw (page 7-11)
3. Air filter element (page 7-8)
4. Fuse (page 7-25)
5. Battery (page 7-23)
6. Engine oil drain bolt (page 7-7)
7. Shift pedal (page 4-3)U1P685E0.book Page 1 Tuesday, April 20, 2010 3:18 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-2
7
EAU39944
Periodic 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 CHECKS AND MAINTENANCE JOBSINITIAL ODOMETER READINGS
1000 km
(600 mi) or
1 month or
30 hours3000 km
(1800 mi) or
6 months or
90 hours5000 km
(3000 mi) or
12 months or
150 hours
1*Fuel lineCheck fuel hoses for cracks or damage.
Replace if necessary.√√
2 Spark plugCheck condition.
Adjust gap and clean.√√
3*Valve clearanceCheck and adjust valve clearance when engine is cold.√
4*Air filter elementClean with solvent.
Replace if necessary.√√
5*Crankcase breather sys-
temCheck ventilation hose for cracks or damage and drain
any deposits.
Replace if necessary.√√√
6*CarburetorCheck engine idling speed and starter operation.
Adjust if necessary.√√√
7 Exhaust systemCheck for leakage.
Tighten if necessary.
Replace gasket(s) if necessary.√√
8*Spark arresterClean.√
9 Engine oilChange (warm engine before draining).√√√
U1P685E0.book Page 2 Tuesday, April 20, 2010 3:18 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-5
7
EAU40000
TIPThe air filter needs more frequent service if you are riding in unusually wet or dusty areas.U1P685E0.book Page 5 Tuesday, April 20, 2010 3:18 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-8
7 3. Remove the engine oil filler cap,
the drain bolt and the gasket to
drain the oil from the crankcase.
4. Install a new gasket and the en-
gine oil drain bolt, and then tighten
the bolt to the specified torque.
5. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the engine
oil filler cap.
NOTICE
ECA11620


In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.


Make sure that no foreign 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, im-
mediately 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.
EAU39834
Cleaning the air filter element The air filter element should be cleaned
as follows 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 the air filter case cover by
removing the screws.
2. Pull the sponge material and the
air filter mesh out.
1. Engine oil drain bolt
2. GasketTightening torque:
Engine oil drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
12
Recommended engine oil:
See page 9-1.
Oil change quantity:
0.80 L (0.85 US qt, 0.70 Imp.qt)
1. Screw
2. Air filter case cover
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-9
7
3. Clean the mesh with solvent, and
then wipe the solvent off.
4. Clean the sponge material with
solvent, and then squeeze the re-
maining solvent out. WARNING!
Use only a dedicated parts
cleaning solvent. To avoid therisk of fire or explosion, do not
use gasoline or solvents with a
low flash point.
[EWA10431]
NOTICE:
To avoid damaging the foam
material, handle it gently and
carefully, and do not twist or
wring it.
[ECA10511]
5. Apply oil of the recommended type
to the entire surface of the sponge
material, and then squeeze the ex-
cess oil out.TIPThe sponge material should be wet but
not dripping.
6. Insert the mesh and the sponge
material into the air filter case.
NOTICE: Make sure that the
mesh and the sponge material
are properly seated in the air fil-
ter case. The engine should
never be operated without the
mesh and the sponge material
installed, otherwise the pis-
ton(s) and/or cylinder(s) may
become excessively worn.
[ECA15572]
7. Install the air filter case cover by in-
stalling the screws.
To clean the air filter check hose
1. Check the hose at the bottom of
the air filter case for accumulated
dirt or water.
1. Sponge material
1. Air filter mesh
Recommended oil:
Yamaha foam air filter oil or other
quality foam air filter oil
U1P685E0.book Page 9 Tuesday, April 20, 2010 3:18 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-10
7 2. If dirt or water is visible, remove
the hose, clean it, and then install
it.
EAU40421
Cleaning the spark arrester The spark arrester should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
WARNING
EWA10980


Always let the exhaust system
cool prior to touching exhaust
components.


Do not start the engine when
cleaning 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 ar-
rester portion of the tailpipe and in-
side of the tailpipe housing.
1. Air filter check hose
1. Bolt
2. Tailpipe
1. Spark arrester
1
U1P685E0.book Page 10 Tuesday, April 20, 2010 3:18 PM

SPECIFICATIONS
9-1
9
Dimensions:Overall length:
1305 mm (51.4 in)
Overall width:
595 mm (23.4 in)
Overall height:
775 mm (30.5 in)
Seat height:
555 mm (21.9 in)
Wheelbase:
925 mm (36.4 in)
Ground clearance:
135 mm (5.31 in)
Minimum turning radius:
1400 mm (55.1 in)Weight:With oil and fuel:
57 kg (126 lb)Noise and vibration level:Noise level (77/311/EEC):
TT-R50E 76.7 dB(A)@4250 r/min
Vibration on seat (EN1032, ISO5008):
TT-R50E Will not exceed 0.5 m/s²
Vibration on handlebar (EN1032, ISO5008):
TT-R50E Will not exceed 2.5 m/s²Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
49 cm³
Bore × stroke:
36.0 × 48.6 mm (1.42 × 1.91 in)Compression ratio:
9.50 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Periodic oil change:
0.80 L (0.85 US qt, 0.70 Imp.qt)Air filter:Air filter element:
Wet element
Fuel:Recommended fuel:
TT-R50E Regular unleaded gasoline or
gasohol (E10)
TT-R50EA Regular unleaded gasoline or
gasohol (E10) (CAN)
TT-R50EA Unleaded gasoline or gasohol
(E10) (AUS)(NZL)
Fuel tank capacity:
3.1 L (0.82 US gal, 0.68 Imp.gal)
Fuel reserve amount:
0.4 L (0.11 US gal, 0.09 Imp.gal)Carburetor:Type × quantity:
VM11 x 1Spark plug(s):Manufacturer/model:
NGK/CR7HSA
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-disc and centrifugal
automaticTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
67/18 (3.722)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
37/13 (2.846)
–20–10 0
1020 30 40 50 ˚C 10 30 50 70 90 110 0 130 ˚F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U1P685E0.book Page 1 Tuesday, April 20, 2010 3:18 PM