Yamaha CS50 User Manual
Read this manual carefully
before operating this vehicle.
OWNER’S MANUAL
CS50 / CS50M / CS50Z
49D-F8199-E0
Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
EAU10112
Welcome to the Yamaha world of motorcycling!
As the owner of the CS50 / CS50M / CS50Z, 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 CS50 / CS50M / CS50Z. 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 motorcycle and this manual. If there is any question concerning this manual, please consult a Yamaha dealer.
EWA12411
s WARNING
Please read this manual carefully and completely before operating this scooter.
INTRODUCTION
IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
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.
EAU10132
WARNING
NOTICE
TIP
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.
IMPORTANT MANUAL INFORMATION
CS50 / CS50M / CS50Z
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 Spain.
EAUS1172
SAFETY INFORMATION.....................1-1
Further safe-riding points .................1-5
DESCRIPTION.....................................2-1
Left view ...........................................2-1
Right view .........................................2-3
Controls and instruments .................2-5
INSTRUMENT AND CONTROL
FUNCTIONS ........................................3-1
Main switch/steering lock.................3-1
Indicator and warning lights .............3-2
Turn signal indicator lights .............3-2
High beam indicator light .................3-2
Oil level warning light .......................3-3
Speedometer ....................................3-3
Multi-function display .......................3-4
Handlebar switches ..........................3-6
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................................3-7
Fuel and 2-stroke engine oil
tank caps.......................................3-7
Fuel ...................................................3-8
Catalytic converter............................3-9
2-stroke engine oil ..........................3-10
Kickstarter.......................................3-10
Rider seat........................................3-11
Storage compartment.....................3-11
Adjusting the shock absorber
assembly .....................................3-12
Luggage hook.................................3-13
FOR YOUR SAFETY–
PRE-OPERATION CHECKS...............4-1
Pre-operation check list....................4-2
OPERATION AND IMPORTANT
RIDING POINTS..................................5-1
Starting a cold 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 .........................6-5
Checking the spark plug ..................6-6
Final transmission oil ........................6-7
Coolant .............................................6-8
Air filter element................................6-9
Adjusting the carburetor.................6-10
Adjusting the throttle cable free
play..............................................6-10
Tires ................................................6-11
Cast wheels ....................................6-12
Checking the front brake lever
free play.......................................6-13
Adjusting the rear brake lever
free play.......................................6-13
Checking the front brake pads
and rear brake shoes ..................6-14
Checking the brake fluid level ........6-15
Changing the brake fluid ................6-16
Checking and lubricating the
throttle grip and cable.................6-16
Lubricating the front and rear
brake levers .................................6-16
Checking and lubricating the
centerstand .................................6-17
Checking the front fork...................6-18
Checking the steering.....................6-18
Checking the wheel bearings .........6-19
Battery ............................................6-19
Replacing the fuse..........................6-20
Replacing the headlight bulb
or a front turn signal light bulb....6-21
Replacing the tail/brake light bulb
or a rear turn signal light bulb.....6-23
Replacing the license plate light
bulb .............................................6-24
Replacing an auxiliary light bulb.....6-24
Troubleshooting ..............................6-25
TABLE OF CONTENTS
Troubleshooting charts ...................6-26
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
EAUT1012
Be a Responsible Owner
As the vehicle’s owner, you are responsible for the safe and proper operation 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 operator should know the following requirements before riding this scooter.
He or she should:
G Obtain thorough instructions
from a competent source on all
aspects of scooter operation.
G Observe the warnings and main-
tenance requirements in this
Owner’s Manual.
G Obtain qualified training in safe
and proper riding techniques.
G Obtain 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 condition. Failure to inspect or maintain
the vehicle properly increases the
possibility of an accident or equipment damage. See page 4-1 for a list
of pre-operation checks.
G This 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.
G The failure of motorists to detect
and recognize scooters in traffic
is the predominating cause of
automobile/scooter accidents.
Many accidents have been caused 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 accidents to occur.
• Ride where other motorists can
see you. Avoid riding in another motorist’s blind spot.
G Many accidents involve inexpe-
rienced operators. In fact, many
operators who have been involved in accidents do not even
have a current driver’s license.
• Make sure that you are qualified and that you only lend your
scooter to other qualified operators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you practice riding your scooter where
there is no traffic until you have
become thoroughly familiar
with the scooter and all of its
controls.
G Many accidents have been cau-
sed by error of the scooter operator. A typical error made by the
operator is veering wide on a turn
due to excessive speed or under-
1
SAFETY INFORMATION
1-1
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.
G The 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 footrests 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 footrests. Never carry a passenger
unless he or she can firmly place both feet on the passenger
footrests.
G Never ride under the influence of
alcohol or other drugs.
G This 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 injuries. The use of a safety helmet is the
single most critical factor in the prevention or reduction of head injuries.
G Always wear an approved hel-
met.
G Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment of vision that could delay
seeing a hazard.
G The use of a jacket, substantial
shoes, trousers, gloves, etc., is
effective in preventing or reducing abrasions or lacerations.
G Never wear loose-fitting clothes,
otherwise they could catch on
the control levers or wheels and
cause injury or an accident.
G Always 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.
G A 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 headaches, 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 overcome and unable to save yourself.
Also, deadly levels of carbon monoxide can linger for hours or days in
enclosed or poorly ventilated areas. If
you experience any symptoms of carbon monoxide poisoning, leave the
area immediately, get fresh air, and
SEEK MEDICAL TREATMENT.
1
SAFETY INFORMATION
1-2
G Do not run engine indoors. Even
if you try to ventilate engine
exhaust with fans or open windows and doors, carbon monoxide can rapidly reach dangerous
levels.
G Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or carports.
G Do 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, passenger, 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:
G Cargo and accessory weight
should be kept as low and close
to the scooter as possible. Securely pack your heaviest items as
close to the center of the vehicle
as possible and make sure to distribute the weight as evenly as
possible on both sides of the
scooter to minimize imbalance or
instability.
G Shifting 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 frequently.
G Properly adjust the suspension
for your load (suspension-adjustable models only), and check the
condition and pressure of your
tires.
G 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 response.
G This 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 available 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 modifications for Yamaha vehicles. Yamaha is
not in a position to test the products
that these aftermarket companies
produce. Therefore, Yamaha can neither endorse nor recommend the use
of accessories not sold by Yamaha or
Maximum load:
CS50 169 kg (373 lb)
CS50M 169 kg (373 lb)
CS50Z 166 kg (366 lb)
1
SAFETY INFORMATION
1-3
1
SAFETY INFORMATION
1-4
modifications not specifically recommended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket products similar in design and quality to
genuine Yamaha accessories, recognize that some aftermarket accessories or modifications are not suitable
because of potential safety hazards to
you or others. Installing aftermarket
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 “Loading” when mounting accessories.
G Never install accessories or carry
cargo that would impair the performance of your scooter. Carefully inspect the accessory before using it to make sure that it
does not in any way reduce
ground clearance or cornering
clearance, limit suspension travel, steering travel or control operation, or obscure lights or reflectors.
• Accessories fitted to the handlebar or the front fork area can
create instability due to improper 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 aerodynamic effects. Wind may attempt
to lift the scooter, or the scooter may become unstable in
cross winds. These accessories may also cause instability
when passing or being passed
by large vehicles.
• Certain accessories can displace the operator from his or
her normal riding position. This
improper position limits the fre-
edom of movement of the operator and may limit control ability, therefore, such accessories are not recommended.
G Use 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 provide the best combination of handling, braking, and comfort. Other tires,
rims, sizes, and combinations may
not be appropriate. Refer to page
6-11 for tire specifications and more
information on replacing your tires.
EAU10372
Further safe-riding points
G Be sure to signal clearly when
making turns.
G Braking can be extremely difficult
on a wet road. Avoid hard braking, because the scooter could
slide. Apply the brakes slowly
when stopping on a wet surface.
G Slow down as you approach a
corner or turn. Once you have
completed a turn, accelerate
slowly.
G Be careful when passing parked
cars. A driver might not see you
and open a door in your path.
G Railroad crossings, streetcar
rails, iron plates on road construction sites, and manhole
covers become extremely slippery when wet. Slow down and
cross them with caution. Keep
the scooter upright, otherwise it
could slide out from under you.
G The brake pads could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.
G Always wear a helmet, gloves,
trousers (tapered around the cuff
and ankle so they do not flap),
and a bright colored jacket.
G Do 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 scooter and could divert your attention from the road. (See page
1-1).
1
SAFETY INFORMATION
1-5
EAU32220
Left view
CS50/CS50M
1
2
3
4
5
6
7
8
DESCRIPTION
2-1
2
1. Storage compartment (page 3-11)
2. Shock absorber assembly (page 3-12)
3. Final transmission oil filler cap (page 6-7)
4. Adjusting nut (page 6-13)
5. Final transmission oil drain bolt (page 6-7)
6. Kickstarter (page 3-10)
7. Air filter element (page 6-9)
8. Front brake pads (page 6-14)
CS50Z
1
2
3
4
5
67
9
8
DESCRIPTION
2-2
2
1. Storage compartment (page 3-11)
2. Shock absorber assembly (page 3-12)
3. Final transmission oil filler cap (page 6-7)
4. Adjusting nut (page 6-13)
5. Final transmission oil drain bolt (page 6-7)
6. Kickstarter (page 3-10)
7. Air filter element (page 6-9)
8. Coolant level check window (page 6-8)
9. Front brake pads (page 6-14)
EAU32230
Right view
CS50/CS50M
1
32
4
6
7
9
8
5
DESCRIPTION
2-3
2
1. Grab bar (page 5-2)
2. Oil tank cap (page 3-7/3-10)
3. Fuel tank cap (page 3-7)
4. Seat (page 3-11)
5. Battery (page 6-19)
6. Fuse (page 6-20)
7. Luggage hook (page 3-13)
8. Centerstand (page 6-17)
9. Passenger footrest
DESCRIPTION
2-4
2
1. Grab bar (page 5-2)
2. Oil tank cap (page 3-7/3-10)
3. Fuel tank cap (page 3-7)
4. Seat (page 3-11)
5. Battery (page 6-19)
6. Fuse (page 6-20)
7. Luggage hook (page 3-13)
8. Coolant reservoir cap (page 6-8)
9. Centerstand (page 6-17)
10. Passenger footrest
CS50Z
1
32 4
6
7
8
10
9
5
EAU32240
Controls and instruments
CS50/CS50M/CS50Z
1
2
3
4
5
67
8
DESCRIPTION
2-5
2
1. Rear brake lever (page 3-7)
2. Left handlebar switches (page 3-6)
3. Speedometer (page 3-3)
4. Multi-function display (page 3-4)
5. Main switch/steering lock (page 3-1)
6. Right handlebar switch (page 3-6)
7. Throttle grip (page 6-10)
8. Front brake lever (page 3-6)
INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock
The main switch/steering lock controls the ignition and lighting systems,
and is used to lock the steering. The
various positions are described
below.
EAU10640
“” ON
All electrical circuits are supplied with
power, and the engine can be started.
The key cannot be removed.
TIP
The headlight, meter lighting and taillight come on automatically when the
engine is started.
EAU10661
“ ” OFF
All electrical systems are off. The key
can be removed.
EWA10061
s WARNING
Never turn the key to “ ” or “ ”
while the vehicle is moving. Otherwise the electrical systems will be
switched off, which may result in
loss of control or an accident.
EAU10670
The 2-stroke engine oil level warning
light should come on. (See page 3-2).
EAU10681
“ ” LOCK
The steering is locked, and all electrical systems are off. The key can be
removed.
T
o lock the steering
1. Push.
2. Turn.
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “ ”
position, and then turn it to “ ”
while still pushing it.
3. Remove the key.
1
2
km/h
0
10
20
30
40
50
60
70
80
km/h
0
10
20
30
40
50
60
70
80
INSTRUMENT AND CONTROL FUNCTIONS
To unlock the steering
1
1. Push.
2. Turn.
2
1. Push the key in, and then turn it
to “ ” while still pushing it.
EAU11003
Indicator and warning lights
CS50/CS50M
1432
1. Left turn signal indicator light “ ”
2. Oil level warning light “ ”
3. High beam indicator light “ ”
4. Right turn signal indicator light “ ”
CS50Z
1
1. Left turn signal indicator light “ ”
2. Coolant temperature warning light “ ”
3. Oil level warning light “ ”
4. High beam indicator light “ ”
5. Right turn signal indicator light “ ”
Turn signal indicator lights “ ”
and “ ”
The corresponding indicator light flashes when the turn signal switch is
pushed to the left or right.
High beam indicator light “ ”
This indicator light comes on when
the high beam of the headlight is switched on.
4
32 5
EAU11030
EAU11080
3
3-2
km/h
mph
0
10
20
30
40
50
0
10
20
30
40
50
60
70
80
km/h
mph
0
10
20
30
40
50
0
10
20
30
40
50
60
70
80
km/h
0
10
20
30
40
50
60
70
80
km/h
0
10
20
30
40
50
60
70
80
INSTRUMENT AND CONTROL FUNCTIONS
Oil level warning light “ ”
This warning light comes on when the
key is in the “ ” position or if the oil
level in the 2-stroke engine oil tank is
low during operation. If the warning
light comes on during operation, stop
immediately and fill the oil tank with
3
Yamalube 2 or equivalent 2-stroke
engine oil of either JASO grade “FC”
or ISO grades “EG-C” or “EG-D”. The
warning light should go off after the 2stroke engine oil tank has been refilled.
TIP
If the warning light does not come on
when the key is in the “ ” position
or does not go off after the 2-stroke
engine oil tank has been refilled, have
a Yamaha dealer check the electrical
circuit.
NOTICE
Do not operate the vehicle until you
know that the engine oil level is sufficient.
EAU11181
ECA16291
Speedometer
S50/CS50M
1. Speedometer
CS50Z
1. Speedometer
3-3
EAUS1530
CS50/CS50M (for UK only)
1
1
1. Speedometer
CS50Z (for UK only)
1
1
1. Speedometer
The speedometer shows the riding
speed.
km/
h
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
INSTRUMENT AND CONTROL FUNCTIONS
EAUS1424
Multi-function display
2
3
1
4
1. Select button
2. Odometer/tripmeter
3. Clock
4. Fuel meter
EWA12312
s WARNING
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 equipped with the following:
G a digital clock
G an odometer (which shows the
total distance traveled)
G a tripmeter (which shows the dis-
tance traveled since it was last
set to zero)
G a fuel gauge
G a self-diagnosis device
G a function button (which selects,
sets and resets various modes of
the multi-function display)
TIP
G Be sure to turn the key to “ ”
before using the button.
G For the U.K. only: The odometer
and tripmeter are displayed in
miles.
To set the clock:
1. Select the odometer and push
the button for at least two
seconds.
2. When the hour digits start flashing, push the button to set the
hours.
3-4
3
3. To change the ten-minute digit,
push the button for at least two
seconds.
4. When the ten-minute digit starts
flashing, push the button to set it.
5. To change the one-minute digit,
push the button for at least two
seconds.
INSTRUMENT AND CONTROL FUNCTIONS
6. When the one-minute digit starts
flashing, push the button to set it.
3
7. Push the button for at least two
seconds to start the clock.
TIP
After setting the clock, be sure to
push the button for at least two
seconds before turning the key to
“ ”, otherwise the clock will not be
set.
Odometer and tripmeter modes
Pushing the button switches the display between the odometer mode
“ODO” and the tripmeter “TRIP” in
the following order:
ODO 씮 TRIP 씮 ODO
the fuel gauge will flash. If this occurs,
have a Yamaha dealer check the vehicle.
PRESS
BUTTON
PRESS
BUTTON
1. Odometer
2. Tripmeter
To reset the tripmeter, select it by
pushing the button, and then push it
again for at least two seconds.
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 one segment is
left near “E”, refuel as soon as possible.
Self-diagnosis device
This model is equipped with a selfdiagnosis device for the fuel electrical
circuit.
If a problem is detected in the fuel
electrical circuit, all LCD segments of
3-5
INSTRUMENT AND CONTROL FUNCTIONS
Handlebar switches
Left
1. Dimmer switch “ / ”
2. Turn signal switch “ / ”
3. Horn switch “ ”
Right
EAU12347
EAU12400
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
EAU12460
Turn signal switch “ / ”
To signal a right-hand turn, push this
switch to “ ”. To signal a left-hand
turn, push this switch to “ ”. When
released, the switch returns to the
center position. To cancel the turn
signal lights, push the switch in after it
has returned to the center position.
EAU12500
Horn switch “ ”
Press this switch to sound the horn.
EAUM1132
Start switch “ ”
Push this switch while applying the
front or rear brake to crank the engine
with the starter. See page 5-1 for starting instructions prior to starting the
engine.
EAU12900
Front brake lever
1
3
1. Front brake lever
The front brake lever is located on the
right handlebar grip. To apply the
front brake, pull this lever toward the
handlebar grip.
1. Start switch “ ”
3-6
Loading...