2014 YAMAHA TTR50 engine

MOTORCYCLE CARE AND STORAGE
8-2
8off any d
etergent resi due usin g
plenty of water, as it is harmful
to plastic parts.
 Do not use any harsh chemical
prod ucts on plastic parts. Be
sure to avoi d using cloths or
spon ges which have been in
contact with stron g or a brasive
cleanin g prod ucts, solvent or
thinner, fuel ( gasoline), rust re-
movers or inhi bitors, brake flui d,
antifreeze or electrolyte.
 Do not use hi gh-pressure wash-
ers or steam-jet cleaners since
they cause water seepa ge an d
d eterioration in the followin g ar-
eas: seals (of wheel an d swin g-
arm bearin gs, fork an d b rakes),
electric components (couplers,
connectors, instruments,
switches an d lig hts), breather
hoses an d vents.
 For motorcycles equippe d with
a win dshield : Do not use stron g
cleaners or har d spon ges as
they will cause dullin g or
scrat

ching . Some cleanin g
compoun ds for plastic may
leave scratches on the win d- shield
. Test the pro duct on a
small hidden part of the win d-
shield to make sure that it does
not leave any marks. If the win d-
shield is scratche d, use a quality
plastic polishin g compoun d af-
ter washin g.
After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain or near the seaSince sea salt is extremely corrosive,
carry out the following steps after each
ride in the rain or near the sea.
1. Clean the motorcycle with cold water and a mild detergent, after
the engine has cooled down.
NOTICE: Do not use warm wa-
ter since it increases the corro-
sive action of the salt.
[ECA10792]
2. Apply a corrosion protection spray on all metal, including chrome-
and nickel-plated, surfaces to pre-
vent corrosion.
After cleanin g
1. Dry the motorcycle with a chamois or an absorbing cloth.
2. Immediately dry the drive chain and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally in-
duced discoloring of stainless-
steel exhaust systems can be re-
moved through polishing.)
4. To prevent corrosion, it is recom- mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean- er to remove any remaining dirt.
6. Touch up minor paint damage caused by stones, etc.
7. Wax all painted surfaces.
U2CJ81E0.book Page 2 Wednesday, July 10, 2013 3:54 PM

MOTORCYCLE CARE AND STORAGE8-3
8
8. Let the motorcycle dry completely
before storing or covering it.
WARNING
EWA14502
Contaminants on the b rakes or tires
can cause loss of control.  Make sure that there is no oil or
wax on the tires.
 If necessary, wash the tires with
warm water an d a mil d d eter-
g ent. Before rid ing at hi gher
spee ds, test the motorcycle’s
b rakin g performance an d cor-
nerin g b ehavior.NOTICE
ECA10801
 Apply spray oil an d wax spar-
in gly an d make sure to wipe off
any excess.
 Never apply oil or wax to any
rubber an d plastic parts, b ut
treat them with a suita ble care
prod uct.
 Avoi d usin g a brasive polishin g
compoun ds as they will wear
away the paint.
TIPConsult a Yamaha dealer for advice on
what products to use.
EAU26153
Stora geShort-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the mo-
torcycle.NOTICE
ECA10811
 Storin g the motorcycle in a
poorly ventilated room or cover-
in g it with a tarp, while it is still
wet, will allow water an d humi d-
ity to seep in an d cause rust.
 To prevent corrosion, avoi d
d amp cellars, stab les (because
of the presence of ammonia)
an d areas where stron g chemi-
cals are stored .Long-term
Before storing your motorcycle for sev-
eral months: 1. Follow all the instructions in the “Care” section of this chapter.
U2CJ81E0.book Page 3 Wednesday, July 10, 2013 3:54 PM

MOTORCYCLE CARE AND STORAGE
8-4
82. For motorcycles equipped with a
fuel cock that has an “OFF” posi-
tion: Turn the fuel cock lever to
“OFF”.
3. Drain the carburetor float chamber by loosening the drain bolt; this
will prevent fuel deposits from
building up. Pour the drained fuel
into the fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
5. Perform the following steps to protect the cylinder, piston rings,
etc. from corrosion.a. Remove the spark plug cap and spark plug.
b. Pour a teaspoonful of engine oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.) WARNING! To prevent d
am-
a g e or injury from sparkin g,
make sure to groun d the
spark plu g electro des while
turnin g the en gine over.
[EWA10952]
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
6. Lubricate all control cables and the pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
7. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
8. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
9. Remove the battery and fully charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex- cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
7-23.
TIPMake any necessary repairs before
storing the motorcycle.
U2CJ81E0.book Page 4 Wednesday, July 10, 2013 3:54 PM

SPECIFICATIONS
9-1
9
Dimensions:Overall length:1305 mm (51.4 in)
Overall width:
595 mm (23.4 in)
Overall height: 795 mm (31.3 in)
Seat height: 555 mm (21.9 in)
Wheelbase:
925 mm (36.4 in)
Ground clearance: 135 mm (5.31 in)Wei ght:Curb weight:
57 kg (126 lb)
Technical permissible mass (Maximum load +
Curb weight):
97 kg (214 lb)Noise an d vi bration 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: 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:Regular unleaded gasoline (Gasohol (E10)
acceptable)
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)Car buretor:Type × quantity:
VM11 x 1Spark plu g(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 ratio:3.722 (67/18)
Final drive:
Chain
Secondary reduction ratio: 2.846 (37/13)
Transmission type: Constant mesh 3-speed
Operation:
Left foot operation
Gear ratio: 1st:
3.250 (39/12)
–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
U2CJ81E0.book Page 1 Wednesday, July 10, 2013 3:54 PM

INDEXAAir filter element, cleaning ...................... 7-8BBattery .................................................. 7-23
Brake lever .............................................. 4-3
Brake lever, checking and lubricating ........................................... 7-20
Brake lever free play, adjusting ............ 7-15
Brake pedal............................................. 4-3
Brake pedal, checking and lubricating ........................................... 7-21
Brake pedal free play, adjusting ........... 7-16
Brake shoes, checking ......................... 7-17CCables, checking and lubricating ......... 7-20
Carburetor, adjusting ............................ 7-11
Care ........................................................ 8-1
Clutch free play, adjusting .................... 7-15DDrive chain, cleaning and lubricating .... 7-19
Drive chain slack................................... 7-18EEngine break-in....................................... 6-3
Engine idling speed .............................. 7-11
Engine oil ................................................ 7-7
Engine, starting a warm .......................... 6-2
Engine stop switch ................................. 4-2FFront fork, checking .............................. 7-22
Fuel ......................................................... 4-4
Fuel cock ................................................ 4-7
Fuel tank breather hose .......................... 4-6
Fuel tank cap .......................................... 4-4
Fuse, replacing ..................................... 7-25
HHandlebar switches ................................ 4-1IIdentification numbers .......................... 10-1LLabels, location ...................................... 1-1MMain switch ............................................ 4-1
Maintenance and lubrication, periodic ... 7-3
Maintenance, emission control
system.................................................. 7-2
Matte color, caution ............................... 8-1
Model label ........................................... 10-1PParking ................................................... 6-4
Part locations ......................................... 3-1SSafety information .................................. 2-1
Seat ........................................................ 4-8
Shifting ................................................... 6-2
Shift pedal .............................................. 4-3
Shift pedal, checking ............................ 7-17
Sidestand ............................................... 4-9
Sidestand, checking an d lubricating .... 7-21
Spark arrester, cleaning ....................... 7-10
Spark plug, checking.............................. 7-6
Specifications ......................................... 9-1
Speed limiter .......................................... 4-2
Starter (choke) lever ............................... 4-8
Starting and warming up a cold engine .................................................. 6-1
Starting circuit cut-off system ................ 4-9
Start switch ............................................ 4-2
Steering, checking................................ 7-22 Storage ...................................................8-3
Supporting the motorcycle ...................7-26
Swingarm pivots, lubricating ................7-21
TThrottle grip and cable, checking and
lubricating ...........................................7-20
Throttle grip free play, checking ...........7-12
Tires ......................................................7-13
Troubleshooting ....................................7-30
Troubleshooting chart ...........................7-31VValve clearance .....................................7-12
Vehicle Emission Control Information label (For Canada)...............................10-2
Vehicle identification number ................10-1WWheel bearings, checking .....................7-23
Wheel (front) ..........................................7-26
Wheel (rear) ...........................................7-28
Wheels ..................................................7-14
U2CJ81E0.book Page 1 Wednesday, July 10, 2013 3:54 PM