tire pressure YAMAHA TTR50 2011 Owners Manual

LOCATION OF IMPORTANT LABELS
1-6
1Familiarize yourself with the following pictograms and read the explanatory text.
**.* kPa
*.** kgf/cm²
*.* psi**.* kPa
*.** kgf/cm²
*.* psi
Read the Owner’s manual.
This unit contains high-pressure
nitrogen gas.
Mishandling can cause
an explosion. Do not incinerate,
puncture or open.
Turn off the main switch after
riding to avoid draining the
battery.Use unleaded gasoline only.
Measure the tire pressure when
the tires are cold.
Adjust the tire pressure.
Improper tire pressure can
cause loss of control.
Loss of control can result in
severe injury or death.
U1P685E0.book Page 6 Tuesday, April 20, 2010 3:18 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-2
5
Control cablesMake sure that operation is smooth.
Lubricate if necessary.7-20
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.7-18, 7-19
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.7-13, 7-14
Shift pedalMake sure that operation is smooth.
Correct if necessary.7-17
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.7-21
Brake leverMake sure that operation is smooth.
Lubricate lever pivoting point if necessary.7-20
SidestandMake sure that operation is smooth.
Lubricate pivot if necessary.7-21
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Engine stop switchCheck operation.4-1 ITEM CHECKS PAGE
chapter5 Page 2 Friday, April 23, 2010 10:13 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-3
7
EAU3534B
General maintenance and lubrication chart 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*ClutchCheck operation.
Adjust if necessary.√√√
2*Front brakeCheck operation.
Adjust brake lever free play and replace brake shoes if
necessary.√√√
3*Rear brakeCheck operation.
Adjust brake pedal free play and replace brake shoes if
necessary.√√√
4*WheelsCheck runout, spoke tightness and for damage.
Tighten spokes if necessary.√√√
5*TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.√√
6*Wheel bearingsCheck bearings for smooth operation.
Replace if necessary.√√
7*Swingarm pivot bearingsCheck bearing assemblies for looseness.
Moderately repack with lithium-soap-based grease.√√
U1P685E0.book Page 3 Tuesday, April 20, 2010 3:18 PM

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.
EAU39824
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:
Fr o nt :
100 kPa (1.00 kgf/cm², 15 psi)
Rear:
100 kPa (1.00 kgf/cm², 15 psi)
1. Tire sidewall
2. Tire tread depthMinimum tire tread depth (front and
rear):
4.0 mm (0.16 in)
12
U1P685E0.book Page 13 Tuesday, April 20, 2010 3:18 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 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 the
spark 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
7-23.
TIPMake any necessary repairs before
storing the motorcycle.
U1P685E0.book Page 4 Tuesday, April 20, 2010 3:18 PM

SPECIFICATIONS
9-2
9
Transmission type:
Constant mesh 3-speed
Operation:
Left foot operation
Gear ratio:
1st:
39/12 (3.250)
2nd:
33/19 (1.736)
3rd:
28/23 (1.217)Chassis:Frame type:
Steel tube backbone
Caster angle:
25.50 °
Trail:
34.0 mm (1.34 in)Front tire:Type:
With tube
Size:
2.50-10 4PR
Manufacturer/model:
CHENG SHIN/KNOBBYRear tire:Type:
With tube
Size:
2.50-10 4PR
Manufacturer/model:
CHENG SHIN/KNOBBY
Loading:Maximum rider weight:
40.0 kg (88 lb)Tire air pressure (measured on cold
tires):
Front:
100 kPa (1.00 kgf/cm², 15 psi)
Rear:
100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:Wheel type:
Spoke wheel
Rim size:
10x1.40Rear wheel:Wheel type:
Spoke wheel
Rim size:
10x1.40Front brake:Type:
Drum brake
Operation:
Right hand operationRear brake:Type:
Drum brake
Operation:
Right foot operationFront suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil springWheel travel:
96.0 mm (3.78 in)
Rear suspension:Type:
Swingarm (monocross)
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
71.0 mm (2.80 in)Electrical system:Ignition system:
DC CDI
Charging system:
AC magnetoBattery:Model:
GT4B-5
Voltage, capacity:
12 V, 2.5 AhFuse:Fuse:
10.0 A
U1P685E0.book Page 2 Tuesday, April 20, 2010 3:18 PM