2009 YAMAHA TTR50 stop start

DESCRIPTION
2-3
2
EAU10430
Controls and instruments
14
5 2
6 3
1. Engine stop switch (page 3-1)
2. Starter (choke) lever (page 3-7)
3. Main switch (page 3-1)
4. Brake lever (page 3-3)
5. Throttle grip (page 6-11)
6. Start switch (page 3-1)
U1P683E0.book Page 3 Tuesday, April 29, 2008 2:05 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU40340
Main switch The main switch controls the ignition
system. The main switch positions are
described below.
EAU10630
ON
All electrical systems are supplied with
power, and the engine can be started.
The key cannot be removed.
EAU45751
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10072
Never turn the key to “OFF” while
the vehicle is moving, otherwise the
electrical systems will be switched
off, which may result in loss of con-trol or an accident.
EAU12347
Handlebar switches Left
Right1. Engine stop switch“/”
1. Start switch“”
1
U1P683E0.book Page 1 Tuesday, April 29, 2008 2:05 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
EAU12660
Engine stop switch“/”
Set this switch to“” before starting
the engine. Set this switch to“” to
stop the engine in case of an emergen-
cy, such as when the vehicle overturns
or when the throttle cable is stuck.
EAU12711
Start switch“”
Push this switch to crank the engine
with the starter. See page 5-1 for start-
ing instructions prior to starting the en-
gine.
EAU39861
Speed limiter Your motorcycle was delivered with an
adjustable speed limiter. The speed
limiter keeps the throttle from fully
opening, even when the throttle grip is
turned to the maximum.
1. Loosen the locknut.
2. To increase the maximum engine
power available and the maximum
speed of the motorcycle, turn the
adjusting screw in direction (a). To
decrease the maximum engine
power available and the maximum
speed of the motorcycle, turn the
adjusting screw in direction (b).
3. Tighten the locknut.
WARNING
EWA14401
Improper adjustment of the speed
limiter could cause improper throttle
operation. You could lose control,
have an accident or be injured. Do
not turn the adjusting screw out
more than 25 mm (0.98 in). Always
make sure the throttle cable free
play is adjusted to 3.0–5.0 mm (0.12–0.20 in). (See page 6-11.)
1. Locknut
2. Adjusting screw
12
(b)
(a)
1. No more than 25 mm (0.98 in)
1
U1P683E0.book Page 2 Tuesday, April 29, 2008 2:05 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-9
3
With the engine turned off:
1. Make sure that the engine stop switch is set to “
”.
2. Turn the key to “ON”.
3. Shift the transmission into gear.
4. Keep the front or rear brake applied.
5. Push the start switch.
Does the engine start?
The neutral switch may not be working correctly.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
6. Shift the transmission into the neutral position.
7. Push the start switch.
Does the engine start?
The neutral switch may not be working correctly.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
YES NO
The system is OK. The motorcycle can be ridden.
YES
NO
If a malfunction is noted, have a Yamaha
dealer check the system before riding.
WARNING
U1P683E0.book Page 9 Tuesday, April 29, 2008 2:05 PM

OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15951
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10271
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAU40095
Starting and warming up a
cold engine 1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch is
set to“”.
3. Shift the transmission into the neu-
tral position.
WARNING
EWA14410


Be sure to shift the transmis-
sion into neutral before starting
the engine.


Never ride with the sidestanddown.
4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-7.)
5. Start the engine by pushing the
start switch. NOTICE: For maxi-
mum engine life, always warm
the engine up before starting
off. Never accelerate hard when
the engine is cold!
[ECA11131]
6. When the engine is warm, turn the
starter (choke) off.
TIPThe engine is warm when it responds
normally to the throttle with the starter(choke) turned off.
U1P683E0.book Page 1 Tuesday, April 29, 2008 2:05 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
EAU21362
Adjusting the engine idling
speed The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.TIPA diagnostic tachometer is needed tomake this adjustment.
1. Attach the tachometer to the spark
plug lead.
2. Start the engine and warm it up for
several minutes at 1000–2000
r/min while occasionally revving it
to 4000–5000 r/min.TIPThe engine is warm when it quickly re-sponds to the throttle.
3. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the throttle stop
screw. To increase the engine
idling speed, turn the screw in di-rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
TIPIf the specified idling speed cannot be
obtained as described above, have aYamaha dealer make the adjustment.
EAU21370
Adjusting the throttle cable
free play The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, adjust it as follows.TIPThe engine idling speed must be cor-
rectly adjusted before checking and ad-justing the throttle cable free play.
1. Loosen the locknut.
1. Throttle stop screwEngine idling speed:
1600–1800 r/min
1
(a) (b)
1. Throttle cable free play
U1P683E0.book Page 11 Tuesday, April 29, 2008 2:05 PM

INDEXAAir filter element, cleaning....................... 6-8BBattery................................................... 6-23
Brake lever .............................................. 3-3
Brake lever, checking and lubricating ... 6-20
Brake lever free play, adjusting............. 6-15
Brake pedal ............................................. 3-3
Brake pedal, checking and
lubricating ........................................... 6-21
Brake pedal free play, adjusting............ 6-16
Brake shoes, checking .......................... 6-17CCables, checking and lubricating .......... 6-20
Carburetor, adjusting ............................ 6-10
Care ........................................................ 7-1
Clutch free play, adjusting..................... 6-14DDrive chain, cleaning and lubricating .... 6-19
Drive chain slack ................................... 6-17EEngine break-in ....................................... 5-3
Engine idling speed............................... 6-11
Engine oil ................................................ 6-6
Engine, starting a warm .......................... 5-2
Engine stop switch .................................. 3-2FFront fork, checking .............................. 6-22
Fuel ......................................................... 3-4
Fuel cock................................................. 3-6
Fuel tank breather hose .......................... 3-6
Fuel tank cap .......................................... 3-4
Fuse, replacing ..................................... 6-25
HHandlebar switches ................................ 3-1IIdentification numbers ............................ 9-1KKey identification number ....................... 9-1MMain switch ............................................. 3-1
Maintenance and lubrication, periodic .... 6-3
Maintenance, emission control system... 6-2
Matte color, caution ................................ 7-1
Model label ............................................. 9-2PParking ................................................... 5-4
Part locations .......................................... 2-1
Pre-operation check list .......................... 4-2SSafety information................................... 1-1
Seat ........................................................ 3-7
Shifting.................................................... 5-2
Shift pedal............................................... 3-3
Shift pedal, checking ............................ 6-16
Sidestand................................................ 3-8
Sidestand, checking and lubricating ..... 6-21
Spark arrester, cleaning ......................... 6-9
Spark plug, checking .............................. 6-5
Specifications ......................................... 8-1
Speed limiter........................................... 3-2
Starter (choke) lever ............................... 3-7
Starting and warming up a cold
engine .................................................. 5-1
Starting circuit cut-off system ................. 3-8
Start switch ............................................. 3-2
Steering, checking ................................ 6-22Storage.................................................... 7-3
Supporting the motorcycle .................... 6-25
Swingarm pivots, lubricating ................. 6-21
TThrottle cable free play, adjusting ......... 6-11
Throttle grip and cable, checking and
lubricating ........................................... 6-20
Tires ...................................................... 6-12
Troubleshooting .................................... 6-29
Troubleshooting chart ........................... 6-31VValve clearance..................................... 6-12
Vehicle identification number .................. 9-1WWheel bearings, checking ..................... 6-23
Wheel (front) ......................................... 6-26
Wheel (rear) .......................................... 6-28
Wheels .................................................. 6-14
U1P683E0.book Page 1 Tuesday, April 29, 2008 2:05 PM