2009 YAMAHA TTR50 fuel

TABLE OF CONTENTS
SAFETY INFORMATION .................. 1-1
DESCRIPTION .................................. 2-1
Left view .......................................... 2-1
Right view ........................................ 2-2
Controls and instruments ................2-3
INSTRUMENT AND CONTROL
FUNCTIONS....................................... 3-1
Main switch ..................................... 3-1
Handlebar switches ........................ 3-1
Speed limiter .................................. 3-2
Shift pedal ......................................3-3
Brake lever ..................................... 3-3
Brake pedal .................................... 3-3
Fuel tank cap .................................. 3-4
Fuel ................................................ 3-4
Fuel tank breather hose ................. 3-6
Fuel cock ........................................ 3-6
Starter (choke) lever ....................... 3-7
Seat ................................................ 3-7
Sidestand ....................................... 3-8
Starting circuit cut-off system ......... 3-8
FOR YOUR SAFETY –
PRE-OPERATION CHECKS.............. 4-1
Pre-operation check list .................. 4-2OPERATION AND IMPORTANT
RIDING POINTS................................ 5-1
Starting and warming up a cold
engine ......................................... 5-1
Starting a warm engine .................. 5-2
Shifting ........................................... 5-2
Engine break-in .............................. 5-3
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Periodic maintenance chart for
the emission control system ....... 6-2
General maintenance and
lubrication chart .......................... 6-3
Checking the spark plug ................ 6-5
Engine oil ....................................... 6-6
Cleaning the air filter element ........ 6-8
Cleaning the spark arrester ........... 6-9
Adjusting the carburetor ............... 6-10
Adjusting the engine idling
speed ........................................ 6-11
Adjusting the throttle cable free
play ........................................... 6-11
Valve clearance ........................... 6-12
Tires ............................................. 6-12
Spoke wheels .............................. 6-14
Adjusting the clutch free play ....... 6-14
Adjusting the brake lever free
play ........................................... 6-15Adjusting the brake pedal free
play ........................................... 6-16
Checking the shift pedal ............... 6-16
Checking the front and rear brake
shoes ........................................ 6-17
Drive chain slack .......................... 6-17
Cleaning and lubricating the drive
chain ......................................... 6-19
Checking and lubricating
the cables ................................. 6-20
Checking and lubricating
the throttle grip and cable ......... 6-20
Checking and lubricating
the brake lever .......................... 6-20
Checking and lubricating
the brake pedal ......................... 6-21
Checking and lubricating
the sidestand ............................ 6-21
Lubricating the swingarm pivots ... 6-21
Checking the front fork ................. 6-22
Checking the steering .................. 6-22
Checking the wheel bearings ....... 6-23
Battery .......................................... 6-23
Replacing the fuse ....................... 6-25
Supporting the motorcycle ........... 6-25
Front wheel .................................. 6-26
Rear wheel ................................... 6-28
Troubleshooting ........................... 6-29
Troubleshooting chart .................. 6-31
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DESCRIPTION
2-1
2
EAU10410
Left view
12 34 5
76
1. Fuel cock (page 3-6)
2. Throttle stop screw (page 6-11)
3. Air filter element (page 6-8)
4. Fuse (page 6-25)
5. Battery (page 6-23)
6. Engine oil drain bolt (page 6-6)
7. Shift pedal (page 3-3)
U1P683E0.book Page 1 Tuesday, April 29, 2008 2:05 PM

DESCRIPTION
2-2
2
EAU10420
Right view
4 65 32 1
1. Seat (page 3-7)
2. Fuel tank cap (page 3-4)
3. Spark plug cap (page 6-5)
4. Brake pedal (page 3-3)
5. Clutch adjusting screw (page 6-14)
6. Engine oil filler cap (page 6-6)U1P683E0.book Page 2 Tuesday, April 29, 2008 2:05 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAU13182
Fuel tank cap To remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, insert it into
the tank opening, and then turn it clock-
wise.
WARNING
EWA11091
Make sure that the fuel tank cap is
properly closed after filling fuel.Leaking fuel is a fire hazard.
EAU13212
Fuel Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, followthese instructions.
1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-
1. Fuel tank cap
1
1. Fuel tank filler tube
2. Fuel level
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INSTRUMENT AND CONTROL FUNCTIONS
3-5
3ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU41931
For CanadaNOTICE
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a pump octane number
[(R+M)/2] of 86 or higher, or a research
octane number of 91 or higher. Ifknocking (or pinging) occurs, use a
gasoline of a different brand or premi-
um unleaded fuel. Use of unleaded fuel
will extend spark plug life and reduce
maintenance cost.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that contain-
ing methanol. Gasohol containing
ethanol can be used if ethanol content
does not exceed 10% (E10). Gasohol
containing methanol is not recom-
mended by Yamaha because it can
cause damage to the fuel system or ve-
hicle performance problems.
For Europe, Oceania and South Afri-
ca
NOTICE
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
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)
Recommended fuel:
For Europe: REGULAR UNLEADED
GASOLINE ONLY
For Oceania and South Africa: UN-
LEADED GASOLINE ONLY
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)
U1P683E0.book Page 5 Tuesday, April 29, 2008 2:05 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
EAU13412
Fuel tank breather hose Before operating the motorcycle:

Check the fuel tank breather hose
connection.


Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.


Make sure that the fuel tank
breather hose is not blocked, and
clean it if necessary.
EAU13561
Fuel cock The fuel cock supplies fuel from the
tank to the carburetor while filtering it al-
so.
The fuel cock has three positions:
OFF
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not running.ON
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
RES
1. Fuel tank breather hose
1. Arrow mark positioned over “OFF”
1. Arrow mark positioned over “ON”
1. Arrow mark positioned over “RES”
U1P683E0.book Page 6 Tuesday, April 29, 2008 2:05 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-7
3This indicates reserve. If you run out of
fuel while riding, move the lever to this
position. Fill the tank at the first oppor-
tunity. Be sure to set the lever back to
“ON” after refueling!
EAU13590
Starter (choke) lever“” Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction (a) to turn on
the starter (choke).
Move the lever in direction (b) to turn off
the starter (choke).
EAU13960
Seat To remove the seat
Remove the bolts, and then pull the
seat off.
To install the seat
1. Insert the projections on the front
of the seat into the seat holders as
shown.
1. Starter (choke) lever“”
1
(a)
(b)
1. Bolt
U1P683E0.book Page 7 Tuesday, April 29, 2008 2:05 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
EAU15605
Pre-operation check list
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-4
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-6
Front brakeCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-15, 6-17
Rear brakeCheck operation.
Check pedal free play.
Adjust if necessary.6-16, 6-17
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-11, 6-20
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-20
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-17, 6-19
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-12, 6-14
Shift pedalMake sure that operation is smooth.
Correct if necessary.6-16
U1P683E0.book Page 2 Tuesday, April 29, 2008 2:05 PM