Yamaha NEO'S 4 2008 User manual

5C3-F819D-E0
YN50F
OWNER’S MANUAL
Read this manual carefully
before operating this vehicle.
5C3-F819D-E0 6/2/09 13:03 Página 1

Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
5C3-F819D-E0 6/2/09 13:03 Página 2

EAU10112
Welcome to the Yamaha world of motorcycling!
As the owner of the YN50F, you are benefiting from Yamaha’s vast experience and newest technology regarding the
design and manufacture of high-quality products, which have earned Yamaha a reputation for dependability.
Please take the time to read this manual thoroughly, so as to enjoy all advantages of your YN50F The Owner’s Manual
does not only instruct you in how to operate, inspect and maintain your scooter, but also in how to safeguard yourself
and others from trouble and injury.
In addition, the many tips given in this manual will help keep your scooter in the best possible condition. If you have
any further questions, do not hesitate to contact your Yamaha dealer.
The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first!
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most
current product information available at the time of printing, there may be minor discrepancies between your motorcy-
cle and this manual. If there is any question concerning this manual, please consult a Yamaha dealer. EWA12411
ssWARNING
Please read this manual carefully and completely before operating this scooter.
INTRODUCTION
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EAU10132
Particularly important information is distinguished in this manual by the following notations:
IMPORTANT MANUAL INFORMATION
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid damage to the
vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
TIP
NOTICE
WARNING
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EAUS1172
IMPORTANT MANUAL INFORMATION
YN50F
OWNER’S MANUAL
©2008 by YAMAHA MOTOR ESPAÑA S.A.
1st edition, August 2008
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
YAMAHA MOTOR ESPAÑA S.A.
is expressly prohibited.
Printed in Neederland.
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SAFETY INFORMATION.....................1-1
Further safe-riding points .................1-5
DESCRIPTION.....................................2-1
Left view ...........................................2-1
Right view .........................................2-2
Controls and instruments .................2-3
INSTRUMENT AND CONTROL
FUNCTIONS ........................................3-1
Main switch/steering lock.................3-1
Indicator and warning lights .............3-2
Turn signal indicator light ................3-2
High beam indicator light ................3-2
Fuel level warning light ....................3-2
Coolant temperature warning light ..3-2
Engine trouble warning light ............3-2
Multi-function display .......................3-3
Handlebar switches ..........................3-5
Dimmer switch .................................3-6
Turn signal switch .............................3-6
Horn switch .....................................3-6
Start switch ......................................3-6
Front brake lever...............................3-6
Rear brake lever................................3-6
Fuel tank cap ....................................3-7
Fuel ...................................................3-7
Fuel tank breather/overflow hose.....3-8
Catalytic converter............................3-9
Kickstarter.........................................3-9
Seat.................................................3-10
Storage compartment.....................3-10
Luggage hook.................................3-11
FOR YOUR SAFETY –
PRE-OPERATION CHECKS ...............4-1
Pre-operation check list....................4-2
OPERATION AND IMPORTANT
RIDING POINTS ..................................5-1
Starting the engine ...........................5-1
Starting off ........................................5-2
Acceleration and deceleration..........5-2
Braking..............................................5-3
Tips for reducing fuel consumption..5-3
Engine break-in.................................5-4
Parking..............................................5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT.....................................6-1
Periodic maintenance and
lubrication chart ............................6-2
Removing and installing the
cowling and panel .........................6-6
Checking the spark plug ..................6-7
Engine oil and oil strainer .................6-9
Final transmission oil ......................6-11
Coolant ...........................................6-12
Replacing the air filter element.......6-13
Adjusting the throttle cable free
play..............................................6-14
Valve clearance...............................6-15
Tires ................................................6-15
Spoke wheels .................................6-17
Checking the front brake lever
free play.......................................6-17
Adjusting the rear brake lever
free play.......................................6-18
Checking the front brake pads
and rear brake shoes ..................6-18
Checking the brake fluid level ........6-19
Changing the brake fluid ................6-20
Checking and lubricating the
cables ..........................................6-20
Checking and lubricating the
throttle grip and cable.................6-21
Lubricating the front and rear
brake levers.................................6-21
Checking and lubricating the
centerstand .................................6-22
Checking the front fork...................6-22
Checking the steering.....................6-23
Checking the wheel bearings .........6-24
Battery ............................................6-24
Replacing the fuse..........................6-26
Replacing the headlight bulb..........6-26
Replacing a front turn signal light
bulb .............................................6-28
Replacing a turn signal light bulb
or the tail/brake light bulb ...........6-28
Replacing the license plate light
bulb .............................................6-29
Replacing the auxiliary light bulb ...6-29
TABLE OF CONTENTS
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Troubleshooting ..............................6-30
Troubleshooting chart.....................6-31
SCOOTER CARE AND STORAGE .....7-1
Matte color caution...........................7-1
Care ..................................................7-1
Storage .............................................7-3
SPECIFICATIONS ...............................8-1
CONSUMER INFORMATION .............9-1
Identification numbers ......................9-1
Key identification number.................9-1
Vehicle identification number............9-1
Model label .......................................9-2
TABLE OF CONTENTS
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EAUT1012
Be a Responsible Owner
As the vehicle’s owner, you are res-
ponsible for the safe and proper ope-
ration of your scooter.
Scooters are single-track vehicles.
Their safe use and operation are
dependent upon the use of proper
riding techniques as well as the
expertise of the operator. Every ope-
rator should know the following requi-
rements before riding this scooter.
He or she should:
GObtain thorough instructions
from a competent source on all
aspects of scooter operation.
GObserve the warnings and main-
tenance requirements in this
Owner’s Manual.
GObtain qualified training in safe
and proper riding techniques.
GObtain professional technical
service as indicated in this
Owner’s Manual and/or when
made necessary by mechanical
conditions.
Safe Riding
Perform the pre-operation checks
each time you use the vehicle to
make sure it is in safe operating con-
dition. Failure to inspect or maintain
the vehicle properly increases the
possibility of an accident or equip-
ment damage. See page 4-1 for a list
of pre-operation checks.
GThis scooter is designed to carry
the operator and a passenger.
TIP
Although this scooter is designed to
carry a passenger, always comply
with the local regulations.
GThe failure of motorists to detect
and recognize scooters in traffic
is the predominating cause of
automobile/scooter accidents.
Many accidents have been cau-
sed by an automobile driver who
did not see the scooter. Making
yourself conspicuous appears to
be very effective in reducing the
chance of this type of accident.
Therefore:
• Wear a brightly colored jacket.
• Use extra caution when you
are approaching and passing
through intersections, since
intersections are the most
likely places for scooter acci-
dents to occur.
• Ride where other motorists can
see you. Avoid riding in anot-
her motorist’s blind spot.
GMany accidents involve inexpe-
rienced operators. In fact, many
operators who have been invol-
ved in accidents do not even
have a current driver’s license.
• Make sure that you are quali-
fied and that you only lend your
scooter to other qualified ope-
rators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you prac-
tice riding your scooter where
there is no traffic until you have
become thoroughly familiar
with the scooter and all of its
controls.
GMany accidents have been cau-
sed by error of the scooter ope-
rator. A typical error made by the
operator is veering wide on a turn
due to excessive speed or under-
1
SAFETY INFORMATION
1-1
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cornering (insufficient lean angle
for the speed).
• Always obey the speed limit
and never travel faster than
warranted by road and traffic
conditions.
• Always signal before turning or
changing lanes. Make sure that
other motorists can see you.
GThe posture of the operator and
passenger is important for proper
control.
• The operator should keep both
hands on the handlebar and
both feet on the operator foo-
trests during operation to
maintain control of the scooter.
• The passenger should always
hold onto the operator, the seat
strap or grab bar, if equipped,
with both hands and keep both
feet on the passenger foo-
trests. Never carry a passenger
unless he or she can firmly pla-
ce both feet on the passenger
footrests.
GNever ride under the influence of
alcohol or other drugs.
GThis scooter is designed for on-
road use only. It is not suitable for
off-road use.
Protective apparel
The majority of fatalities from scooter
accidents are the result of head inju-
ries. The use of a safety helmet is the
single most critical factor in the pre-
vention or reduction of head injuries.
GAlways wear an approved hel-
met.
GWear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impair-
ment of vision that could delay
seeing a hazard.
GThe use of a jacket, substantial
shoes, trousers, gloves, etc., is
effective in preventing or redu-
cing abrasions or lacerations.
GNever wear loose-fitting clothes,
otherwise they could catch on
the control levers or wheels and
cause injury or an accident.
GAlways wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust system
become very hot during or after
operation and can cause burns.
GA passenger should also observe
the above precautions.
Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause heada-
ches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless,
odorless, tasteless gas which may be
present even if you do not see or
smell any engine exhaust. Deadly
levels of carbon monoxide can collect
rapidly and you can quickly be over-
come and unable to save yourself.
Also, deadly levels of carbon monoxi-
de can linger for hours or days in
enclosed or poorly ventilated areas. If
you experience any symptoms of car-
bon monoxide poisoning, leave the
area immediately, get fresh air, and
SEEK MEDICAL TREATMENT.
GDo not run engine indoors. Even
if you try to ventilate engine
exhaust with fans or open win-
dows and doors, carbon monoxi-
de can rapidly reach dangerous
levels.
1
SAFETY INFORMATION
1-2
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GDo not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
GDo not run engine outdoors whe-
re engine exhaust can be drawn
into a building through openings
such as windows and doors.
Loading
Adding accessories or cargo to your
scooter can adversely affect stability
and handling if the weight distribution
of the scooter is changed. To avoid
the possibility of an accident, use
extreme caution when adding cargo
or accessories to your scooter. Use
extra care when riding a scooter that
has added cargo or accessories.
Here, along with the information
about accessories below, are some
general guidelines to follow if loading
cargo to your scooter:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.
When loading within this weight limit,
keep the following in mind:
GCargo and accessory weight
should be kept as low and close
to the scooter as possible. Secu-
rely pack your heaviest items as
close to the center of the vehicle
as possible and make sure to dis-
tribute the weight as evenly as
possible on both sides of the
scooter to minimize imbalance or
instability.
GShifting weights can create a
sudden imbalance. Make sure
that accessories and cargo are
securely attached to the scooter
before riding. Check accessory
mounts and cargo restraints fre-
quently.
• Properly adjust the suspension
for your load (suspension-
adjustable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or
heavy items to the handlebar,
front fork, or front fender. Such
items can create unstable
handling or a slow steering res-
ponse.
GThis vehicle is not designed to
pull a trailer or to be attached
to a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avai-
lable only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection
to Yamaha manufacture parts and
accessories or offer other modifica-
tions for Yamaha vehicles. Yamaha is
not in a position to test the products
that these aftermarket companies
produce. Therefore, Yamaha can neit-
her endorse nor recommend the use
of accessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Maximum load:
160 kg (353 lb)
1
SAFETY INFORMATION
1-3
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1
SAFETY INFORMATION
1-4
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket pro-
ducts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accesso-
ries or modifications are not suitable
because of potential safety hazards to
you or others. Installing aftermarket
products or having other modifica-
tions performed to your vehicle that
change any of the vehicles 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 “Loa-
ding” when mounting accessories.
GNever install accessories or carry
cargo that would impair the per-
formance of your scooter. Care-
fully inspect the accessory befo-
re using it to make sure that it
does not in any way reduce
ground clearance or cornering
clearance, limit suspension tra-
vel, steering travel or control ope-
ration, or obscure lights or reflec-
tors.
• Accessories fitted to the hand-
lebar or the front fork area can
create instability due to impro-
per weight distribution or
aerodynamic changes. If
accessories 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 scooter due to aerodyna-
mic effects. Wind may attempt
to lift the scooter, or the scoo-
ter may become unstable in
cross winds. These accesso-
ries may also cause instability
when passing or being passed
by large vehicles.
• Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the fre-
edom of movement of the ope-
rator and may limit control abi-
lity, therefore, such
accessories are not recom-
mended.
GUse caution when adding electri-
cal accessories. If electrical
accessories exceed the capacity
of the scooter’s electrical system,
an electric failure could result,
which could cause a dangerous
loss of lights or engine power.
Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to pro-
vide the best combination of hand-
ling, braking, and comfort. Other tires,
rims, sizes, and combinations may
not be appropriate. Refer to page
6-15 for tire specifications and more
information on replacing your tires.
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EAU10372
Further safe-riding points
GBe sure to signal clearly when
making turns.
GBraking can be extremely difficult
on a wet road. Avoid hard bra-
king, because the scooter could
slide. Apply the brakes slowly
when stopping on a wet surface.
GSlow down as you approach a
corner or turn. Once you have
completed a turn, accelerate
slowly.
GBe careful when passing parked
cars. A driver might not see you
and open a door in your path.
GRailroad crossings, streetcar
rails, iron plates on road cons-
truction sites, and manhole
covers become extremely slip-
pery when wet. Slow down and
cross them with caution. Keep
the scooter upright, otherwise it
could slide out from under you.
GThe brake pads could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.
GAlways wear a helmet, gloves,
trousers (tapered around the cuff
and ankle so they do not flap),
and a bright colored jacket.
GDo not carry too much luggage
on the scooter. An overloaded
scooter is unstable. Use a strong
cord to secure any luggage to the
carrier (if equipped). A loose load
will affect the stability of the sco-
oter and could divert your atten-
tion from the road. (See page
1-1).
1
SAFETY INFORMATION
1-5
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EAU10410
Left view
DESCRIPTION
2-1
2
1. Storage compartment (page 3-10)
2. Final transmission oil filler cap (page 6-11)
3. Rear brake lever free play adjusting nut (page 6-18)
4. Kickstarter (page 3-9)
5. Air filter element (page 6-13)
6. Engine oil drain bolt (page 6-9)
7. Front brake pads (page 6-18)
5C3-F819D-E0 6/2/09 13:03 Página 13

DESCRIPTION
2-2
2
1. Grab bar (page 5-2)
2. Fuel tank cap (page 3-7)
3. Seat (page 3-10)
4. Battery (page 6-24)
5. Fuses (page 6-26)
6. Coolant reservoir cap (page 6-12)
7. Luggage hook (page 3-11)
8. Main switch/steering lock (page 3-1)
9. Coolant reservoir (page 6-12)
10. Engine oil dipstick (page 6-19)
11. Centerstand (page 6-22)
EAU10420
Right view
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EAU10430
Controls and instruments
DESCRIPTION
2-3
2
1. Rear brake lever (page 3-6)
2. Left handlebar switches (page 3-5)
3. Multi-function display (page 3-3)
4. Right handlebar switch (page 3-5)
5. Throttle grip (page 6-14)
6. Front brake lever (page 3-6)
5C3-F819D-E0 6/2/09 13:03 Página 15

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock
The main switch/steering lock con-
trols the ignition and lighting systems,
and is used to lock the steering. The
various positions are described
below.
EAUS1381
ON
All electrical circuits are supplied with
power, the meter lighting comes on,
and the engine can be started. The
key cannot be removed.
TIP
The headlight and taillight come on
automatically when the engine is star-
ted.
EAU10661
OFF
All electrical systems are off. The key
can be removed. EWA10061
ssWARNING
Never turn the key to “OFF” or
“LOCK” while the vehicle is
moving. Otherwise the electrical
systems will be switched off, which
may result in loss of control or an
accident.
EAU10681
LOCK
The steering is locked, and all electri-
cal systems are off. The key can be
removed.
To lock the steering
1. Push
2. Turn
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.
To unlock the steering
1. Push
2. Turn
1. Push the key in, and then turn it
to “OFF” while still pushing it.
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EAU11003
Indicator and warning lights
1. Coolant temperature warning light “ ”
2. High beam indicator light “ ”
3. Turn signal indicator light “ ”
4. Fuel level warning light “ ”
5. Engine trouble warning light “ ”
EAU11020
Turn signal indicator light “ ”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
EAU11080
High beam indicator light “ ”
This indicator light comes on when
the high beam of the headlight is swit-
ched on.
EAU11350
Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
0.9 L (0.24 US gal, 0.20 Imp.gal)
When this occurs, refuel as soon as
possible.
The electrical circuit of the warning
light can be checked by turning the
key to “ON”.
If the warning light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical
circuit.
EAU11442
Coolant temperature warning light
“”
This warning light comes on if the
engine overheats. If this occurs, stop
the engine immediately and allow the
engine to cool.
The electrical circuit of the warning
light can be checked by turning the
key to “ON”.
If the warning light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical
circuit.
ECA10021
NOTICE
Do not continue to operate the
engine if it is overheating.
TIP
GIf the engine overheats, see page
6-31 for further instructions.
EAUT1932
Engine trouble warning light “ ”
This warning light flashes or stays on
if an electrical circuit monitoring the
engine is not working correctly. If this
occurs, have a Yamaha dealer check
the self-diagnosis system.
The electrical circuit of the warning
light can be checked by turning the
key to “ON”. If the warning light does
not come on for a few seconds, then
go off, have a Yamaha dealer check
the electrical circuit.
INSTRUMENT AND CONTROL FUNCTIONS
3-2
3
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EAUS1470
Multi-function display
1. Clock
2. Speedometer
3. Fuel gauge
4. Oil change indicator
5. Odometer/tripmeter/fuel reserve tripmeter
6. “RESET/SELECT” button
TIP
The multi-function display performs
the following self-test for three
seconds in order to check the electri-
cal circuit.
GThe speedometer digits display
from 0 to 99, and then from 99 to
0 in kilometers. If the speedome-
ter is set to miles, the digits dis-
play from 0 to 65, and then from
65 to 0.
GAll LCD segments and warning
lights come on and then go off.
EWA12312
ssWARNING
Be sure to stop the vehicle before
making any setting changes to the
multi-function display. Changing
settings while riding can distract
the operator and increase the risk
of an accident.
The multi-function display is equip-
ped with the following:
Ga digital clock
Ga digital speedometer
Gan odometer (which shows the
total distance traveled)
Ga tripmeter (which shows the dis-
tance traveled since it was last
set to zero)
Ga fuel reserve tripmeter (which
shows the distance traveled on
the fuel reserve)
Gan oil change indicator (which
shows when the engine oil
should be changed)
Ga fuel gauge
Ga self-diagnosis device
TIP
GBe sure to turn the key to “ON”
before using the button.
GFor the U.K. only: To switch the
speedometer and odometer/trip-
meter displays between miles
and kilometers and vice versa,
when the main switch is turned to
“ON”, press the button for at
least eight seconds.
To set the clock:
1. Select the odometer and push
the button for at least three
seconds.
2. When the hour digits start flas-
hing, push the button to set the
hours.
INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
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3. To change the minutes digits,
push the button for at least three
seconds.
4. When the minutes digits start
flashing, push the button to set
the minutes.
5. Push the button for at least three
seconds to start the clock.
TIP
After setting the clock, be sure to
push the button for at least three
seconds before turning the key to
“OFF”, otherwise the clock will not be
set.
Odometer and tripmeter modes
Pushing the button switches the dis-
play between the odometer mode
“ODO” and the tripmeter “TRIP” in
the following order:
ODO 씮TRIP 씮ODO
If the fuel level warning indicator
comes on (see page 3-2), the odome-
ter display will automatically change
to the fuel reserve tripmeter mode
“TRIP F” and start counting the dis-
tance traveled from that point. In that
case, pushing the button switches the
display between the various tripmeter
and odometer modes in the following
order:
TRIP F 씮ODO 씮TRIP 씮TRIP F
To reset a tripmeter, select it by pus-
hing the button, and then push it
again for at least three seconds. If you
do not reset the fuel reserve tripmeter
manually, it will reset itself automati-
cally and the display will return to the
prior mode after refueling and trave-
ling 5 km (3 mi).
TIP
The display cannot be changed back
to “TRIP F” after pushing the button.
INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
5C3-F819D-E0 6/2/09 13:03 Página 19

Oil change indicator “Oil change”
This indicator comes on at the initial
1000 km (600 mi) and every 3000 km
(1800 mi) thereafter to indicate that
the engine oil should be changed.
(see page 6-9)
Fuel gauge
The fuel gauge indicates the amount
of fuel in the fuel tank. The display
segments of the fuel gauge disappear
towards “E” (Empty) as the fuel level
decreases. When only two segments
are left near “E”, the fuel level warning
indicator comes on. Refuel as soon
as possible.
Self-diagnosis device
This model is equipped with a self-
diagnosis device for the fuel electrical
circuit.
If a problem is detected in the fuel
electrical circuit, all LCD segments of
the fuel gauge and the fuel level war-
ning indicator will flash. If this occurs,
have a Yamaha dealer check the vehi-
cle.
EAU12347
Handlebar switches
Left
1. Dimmer switch “ / ”
2. Turn signal switch “ / ”
3. Horn switch “ ”
Right
1. Start switch “ ”
INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
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