transmission YAMAHA TTR50 2014 Owners Manual

SAFETY INFORMATION
2-2
2

Many accidents involve inexperi-
enced operators.
• Make sure that you are qualified and that you only lend your mo-
torcycle to other qualified oper-
ators.
• Know your skills and limits. Staying within your limits may
help you to avoid an accident.
• We recommend that you prac- tice riding your motorcycle until
you have become thoroughly
familiar with the motorcycle and
all of its controls.
 Many accidents have been
caused by error of the motorcycle
operator. A typical error made by
the operator is veering wide on a
turn due to excessive speed or un-
dercornering (insufficient lean an-
gle for the speed). Never travel
faster than warranted by condi-
tions.
 Ride cautiously in unfamiliar ar-
eas. You may encounter hidden
obstacles that could cause an ac-
cident. 
The posture of the operator is im-
portant for proper control. The op-
erator should keep both hands on
the handlebar and both feet on the
operator footrests during opera-
tion to maintain control of the mo-
torcycle.
 Never ride under the influence of
alcohol or other drugs.
 Be sure the transmission is in neu-
tral before starting the engine.
Protective Apparel
The majority of fatalities from motorcy-
cle accidents are the result of head in-
juries. The use of a safety helmet is the
single most critical factor in the pre-
vention or reduction of head injuries.  Always wear an approved helmet.
 Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
 The use of a jacket, heavy boots,
trousers, gloves, etc., is effective
in preventing or reducing abra-
sions or lacerations. 
Never wear loose-fitting clothes,
otherwise they could catch on the
control levers, footrests, or wheels
and cause injury or an accident.
 Always wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust sys-
tem become very hot during or af-
ter operation and can cause
burns.
Avoi d Car bon Monoxi de Poisonin g
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause head-
aches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be pres-
ent even if you do not see or smell any
engine exhaust. Deadly levels of car-
bon monoxide can collect rapidly and
you can quickly be overcome and un-
able to save yourself. Also, deadly lev-
els of carbon monoxide can linger for
hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poi-
U2CJ81E0.book Page 2 Wednesday, July 10, 2013 3:54 PM

SAFETY INFORMATION
2-4
2
products or having other modifications
performed to your vehicle that change
any of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or
death. You are responsible for injuries
related to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.
 Never install accessories that
would impair the performance of
your motorcycle. Carefully inspect
the accessory before using it to
make sure that it does not in any
way reduce ground clearance or
cornering clearance, limit suspen-
sion travel, steering travel or con-
trol operation.
• Accessories fitted to the han- dlebar or the front fork area can
create instability due to improp-
er weight distribution. If acces-
sories are added to the
handlebar or front fork area,
they must be as lightweight as
possible and should be kept to
a minimum. • Bulky or large accessories may
seriously affect the stability of
the motorcycle. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become
unstable in cross winds.
• Certain accessories can dis- place the operator from his or
her normal riding position. This
improper position limits the
freedom of movement of the
operator and may limit control
ability, therefore, such accesso-
ries are not recommended.
 Use caution when adding electri-
cal accessories. If electrical ac-
cessories exceed the capacity of
the motorcycle’s electrical sys-
tem, an electric failure could re-
sult, which could cause a
dangerous loss of lights or engine
power.
Aftermarket Tires an d Rims
The tires and rims that came with your
motorcycle were designed to match
the performance capabilities and to
provide the best combination of han-
dling, braking, and comfort. Other tires, rims, sizes, and combinations
may not be appropriate. Refer to page
7-13 for tire specifications and more in-
formation on replacing your tires.
Transportin
g the Motorcycle
Be sure to observe following instruc-
tions before transporting the motorcy-
cle in another vehicle.  Remove all loose items from the
motorcycle.
 Check that the fuel cock (if
equipped) is in the “OFF” position
and that there are no fuel leaks.
 Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
 Shift the transmission in gear (for
models with a manual transmis-
sion).
 Secure the motorcycle with tie-
downs or suitable straps that are
attached to solid parts of the mo-
torcycle, such as the frame or up-
per front fork triple clamp (and not,
for example, to rubber-mounted
handlebars or turn signals, or
parts that could break). Choose
U2CJ81E0.book Page 4 Wednesday, July 10, 2013 3:54 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-3
4
EAU39852
Shift pedalThis motorcycle is equipped with a
constant-mesh 3-speed transmission.
The shift pedal is located on the left
side of the motorcycle. Neutral is at the
bottom position.
EAU12892
Brake leverThe brake lever is located on the right
side of the handlebar. To apply the
front brake, pull the lever toward the
throttle grip.
EAU12942
Brake ped alThe brake pedal is on the right side of
the motorcycle. To apply the rear
brake, press down on the brake pedal.
1. Shift pedal
2. Neutral position
1. Brake lever
1
1. Brake pedal
1
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INSTRUMENT AND CONTROL FUNCTIONS
4-9
4
EAU37491
Sidestan dThe sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.
WARNING
EWA14191
The vehicle must not be ri dden with
the si destan d d own, or if the si de-
stan d cannot b e properly move d up
(or does not stay up), otherwise the
si destan d coul d contact the groun d
an d d istract the operator, resultin g
in a possi ble loss of control.
EAU41612
Startin g circuit cut-off systemThe starting circuit cut-off system pre-
vents starting when the transmission is
in gear.
Periodically check the operation of the
starting circuit cut-off system accord-
ing to the following procedure.TIPThis check is most reliable if performed
with a warmed-up engine.
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INSTRUMENT AND CONTROL FUNCTIONS
4-10
4
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
U2CJ81E0.book Page 10 Wednesday, July 10, 2013 3:54 PM

OPERATION AND IMPORTANT RIDING POINTS
6-1
6
EAU15952
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
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which coul d cause an acci dent
or injury.
EAU40099
Startin g an d warmin g up a
col d en gine1. 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 neutral position.
WARNING
EWA14411
Be sure to shift the transmission
into neutral b efore starting the
en gine.
 Never ri de with the si destan d
d own.4. Turn the starter (choke) on and
completely close the throttle.
5. Start the engine by pushing the start switch.
6. When the engine is warm, turn the starter (choke) off.TIPThe engine is warm when it responds
quickly to the throttle with the starter
(choke) turned off.
NOTICE
ECA11043
For maximum en gine life, never ac-
celerate har d when the en gine is
col d!
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OPERATION AND IMPORTANT RIDING POINTS
6-2
6
EAU16641
Starting a warm en gineFollow the same procedure as for
starting a cold engine with the excep-
tion that the starter (choke) is not re-
quired when the engine is warm.
EAU39902
Shiftin gThis motorcycle has a 3-speed trans-
mission with a centrifugal, automatic
clutch. Shifting gears lets you control
the amount of engine power available
for starting off, accelerating, climbing
hills, etc.
The gear positions are shown in the il-
lustration.TIPTo shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel.
NOTICE
ECA15442
Even with the transmission in
the neutral position, d o not
coast for lon g period s of time
with the en gine off, an d d o not
tow the motorcycle for lon g d is-
tances. The transmission is
properly lu bricated only when
the en gine is runnin g. Ina de-
quate lu brication may d amage
the transmission.
 Always release the throttle grip
b efore chan gin g g ears to avoi d
d ama gin g the en gine, transmis-
sion, an d d rive train, which are
not desi gne d to withstan d the
shock of shiftin g when the
throttle grip is open.
EAU39912
To start out an d accelerate
1. Close the throttle.
2. Shift into first gear and release the shift pedal. NOTICE: Always
close the throttle before shiftin g
g ears, otherwise damag e to the
en gine an d d rive train may re-
sult.
[ECA15462]
1. Shift pedal
2. Neutral position
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OPERATION AND IMPORTANT RIDING POINTS
6-3
63. Open the throttle gradually.
4. Once the motorcycle has reached
a speed high enough to change
gears, close the throttle.
5. Shift into second gear and release the shift pedal.
6. Open the throttle gradually.
7. Follow the same procedure when shifting to the next higher gear.
EAU16711
To decelerate
1. Close the throttle and apply both the front and the rear brakes to
slow the motorcycle.
2. Downshift through the gears and shift the transmission into the neu-
tral position when the motorcycle
is almost completely stopped.
EAU39921
Engine break-inThere is never a more important period
in the life of your engine than the first 5
hours of riding. It is also important to
accustom the rider to the motorcycle
during this time. Please read the fol-
lowing information carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
5 hours of operation. The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided. However, momen-
tary full-throttle operation under load
(i.e., two to three seconds maximum)
does not harm the engine. Each full-
throttle acceleration should be fol-
lowed with a substantial rest period for
the engine. To allow the engine to cool
down from the temporary buildup of
heat, cruise at a lower engine speed.
After the first 5 hours of operation,
thoroughly check the motorcycle for
loose parts, oil leakage and any other
problems. Be sure to inspect and make adjustments thoroughly, especially ca-
ble and drive chain slack and loose
spokes. In addition, check all fittings
and fasteners for looseness, and tight-
en if necessary.
NOTICE
ECA10271
If any en
gine trou ble shoul d occur
d urin g the en gine break-in perio d,
imme diately have a Yamaha dealer
check the vehicle.
U2CJ81E0.book Page 3 Wednesday, July 10, 2013 3:54 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
7-18
7
EAU22762
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22775
To check the drive chain slack
1. Place the motorcycle on the side- stand.TIPWhen checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.2. Shift the transmission into the neutral position.
3. Measure the drive chain slack as shown. 4. If the drive chain slack is incorrect,
adjust it as follows.
EAU40115
To a djust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack. 1. Loosen the brake pedal free play adjusting nut, axle nut, and lock-
nut at each end of the swingarm.
2. To tighten the drive chain, turn thedrive chain slack adjusting nut at
each end of the swingarm in direc-
Drive chain slack:35.0–45.0 mm (1.38–1.77 in)
1. Drive chain slack
1. Brake pedal free play adjusting nut
2. Drive chain slack adjusting nut
3. Locknut
1. Axle nut
2. Drive chain slack adjusting nut
3. Locknut
1
2
3
2
3
1
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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: 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
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