fuel YAMAHA TTR50 2010 User Guide

PERIODIC MAINTENANCE AND ADJUSTMENT
7-2
7
EAU39943
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 Engine oilChange (warm engine before draining).√√√
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-13
7
EAU21401
Valve clearance The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU39822
Tires To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA15370
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.
The tire air pressure must be
checked and adjusted on cold tires
(i.e., when the temperature of the
tires equals the ambient tempera-
ture).
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
Tire information
This motorcycle is equipped with spoke
wheels and tube tires.
Standard tire air pressure:
Front:
100 kPa (1.00 kgf/cm², 15 psi)
Rear:
100 kPa (1.00 kgf/cm², 15 psi)
1. Tire sidewall
2. Tire tread depth
Minimum tire tread depth (front and
rear):
4.0 mm (0.16 in)
12
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-30
73. Connect the brake rod to the brake
camshaft lever, and then install the
brake pedal free play adjusting nut
onto the brake rod.
4. Lower the rear wheel so that it is
on the ground, and then put the
sidestand down.
5. Adjust the drive chain slack. (See
page 7-18.)
6. Tighten the axle nut to the speci-
fied torque.
7. Adjust the brake pedal free play.
(See page 7-16.)
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 waterheaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
Tightening torque:
Axle nut:
60 Nm (6.0 m·kgf, 43 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-31
7
EAU25902
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 charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
U1P684E0.book Page 31 Tuesday, April 28, 2009 10:22 AM

MOTORCYCLE CARE AND STORAGE
8-2
8 off any detergent residue using
plenty of water, as it is harmful
to plastic parts.


Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.


Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
electric components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.


For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning com-
pounds for plastic may leave
scratches on the windshield.Test the product on a small hid-
den part of the windshield to
make sure that it does not leave
any marks. If the windshield is
scratched, use a quality plastic
polishing compound after
washing.
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 wa-
ter and a mild detergent, after the
engine has cooled down.
NOTICE: Do not use warm water
since it increases the corrosive
action of the salt.
[ECA10791]
2. Apply a corrosion protection spray
on all metal, including chrome- and
nickel-plated, surfaces to prevent
corrosion.
After cleaning
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.
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MOTORCYCLE CARE AND STORAGE
8-3
88. Let the motorcycle dry completely
before storing or covering it.
WARNING
EWA14501
Contaminants on the brakes 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 and a mild deter-
gent. Before riding at higher
speeds, test the motorcycle’s
braking performance and cor-
nering behavior.
NOTICE
ECA10800


Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.


Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.


Avoid using abrasive polishing
compounds as they will wear
away the paint.
TIPConsult a Yamaha dealer for advice on
what products to use.
EAU26151
Storage Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.NOTICE
ECA10810


Storing the motorcycle in a
poorly ventilated room or cover-
ing it with a tarp, while it is still
wet, will allow water and humid-
ity to seep in and cause rust.


To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong 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.
2. For motorcycles equipped with a
fuel cock that has an “OFF” posi-
tion: Turn the fuel cock lever to
“OFF”.
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MOTORCYCLE CARE AND STORAGE
8-4
8 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 pro-
tect 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 dam-
age or injury from sparking,
make sure to ground thespark plug electrodes while
turning the engine over.
[EWA10951]
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
7-24.
TIPMake any necessary repairs before
storing the motorcycle.
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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:
57.0 kg (126 lb)Noise and vibration level:Noise level (77/311/EEC):
TT-R50E 76.7 dB(A)
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 only
TT-R50EZ Regular unleaded gasoline only
(CAN)
TT-R50EZ Unleaded gasoline only
(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)
Transmission type:
Constant mesh 3-speed
–20–10 0
1020 30 40 50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
10 30 50 70 90 110 0 130 ˚F
U1P684E0.book Page 1 Tuesday, April 28, 2009 10:22 AM

INDEXAAir filter element, cleaning....................... 7-8BBattery................................................... 7-24
Brake lever .............................................. 4-3
Brake lever, checking and lubricating ... 7-21
Brake lever free play, adjusting............. 7-16
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 .... 7-20
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................................................. 4-6
Fuel tank breather hose .......................... 4-6
Fuel tank cap .......................................... 4-4
Fuse, replacing ..................................... 7-25
HHandlebar switches ................................ 4-1IIdentification numbers .......................... 10-1KKey identification number ..................... 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 ........................................... 10-2PParking ................................................... 6-4
Part locations .......................................... 3-1SSafety information................................... 2-1
Seat ........................................................ 4-7
Shifting.................................................... 6-2
Shift pedal............................................... 4-3
Shift pedal, checking ............................ 7-17
Sidestand................................................ 4-8
Sidestand, checking and lubricating ..... 7-22
Spark arrester, cleaning ....................... 7-10
Spark plug, checking .............................. 7-6
Specifications ......................................... 9-1
Speed limiter........................................... 4-2
Starter (choke) lever ............................... 4-7
Starting and warming up a cold
engine .................................................. 6-1
Starting circuit cut-off system ................. 4-8
Start switch ............................................. 4-2Steering, checking................................. 7-23
Storage.................................................... 8-3
Supporting the motorcycle .................... 7-26
Swingarm pivots, lubricating ................. 7-22
TThrottle cable free play, adjusting ......... 7-12
Throttle grip and cable, checking and
lubricating ........................................... 7-21
Tires ...................................................... 7-13
Troubleshooting .................................... 7-30
Troubleshooting chart ........................... 7-31VValve clearance..................................... 7-13
Vehicle Emission Control Information
label (For Canada) .............................. 10-2
Vehicle identification number ................ 10-1WWheel bearings, checking ..................... 7-23
Wheel (front) ......................................... 7-27
Wheel (rear) .......................................... 7-28
Wheels .................................................. 7-14
U1P684E0.book Page 1 Tuesday, April 28, 2009 10:22 AM