Yamaha SLIDER EW50 NAKED User manual

OWNER’S MANUAL
5YX-F8199-E0
EW50 NAKED

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INTRODUCTION
Welcome to the Yamaha world of motorcycling!
As the owner of the EW50 NAKED, 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 EW50 NAKED. 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!

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IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
Failure to follow WARNING instructions could result in severe injury or death to the
scooter operator, a bystander, or a person inspecting or repairing the scooter.
A CAUTION indicates special precautions that must be taken to avoid damage to
the scooter.
NOTE : A NOTE provides key information to make procedures easier or clearer.
NOTE :
•This manual should be considered a permanent part of this scooter and should remain with it even if the
scooter is subsequently sold.
•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 scooter and this manual. If you have any questions concerning this manual,
please consult your Yamaha dealer.

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PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS
SCOOTER.
IMPORTANT MANUAL INFORMATION

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EW50 NAKED
OWNER'S MANUAL
© 2004 by MBK INDUSTRIE
1st Edition, July 2004
All rights reserved
Any reprinting or unauthorized use
without the written permission of
MBK INDUSTRIE
is expressly prohibited.
Printed in France.

11 GIVE SAFETY THE RIGHT OF WAY
2 DESCRIPTION
3 INSTRUMENT AND CONTROL FUNCTIONS
4 PRE-OPERATION CHECKS
5 OPERATION AND IMPORTANT RIDING POINTS
6 PERIODIC MAINTENANCE AND MINOR REPAIR
7 SCOOTER CARE AND STORAGE
8 SPECIFICATIONS
9 CONSUMER INFORMATION
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TABLE OF CONTENTS
2
3
4
5
6
7
8
9

GIVE SAFETY THE RIGHT OF WAY ................................................. 1-1
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GIVE SAFETY THE RIGHT OF WAY
1

GIVE SAFETY THE RIGHT OF WAY
1
Scooters are fascinating vehicles, which can give you an unsurpassed feeling of power and freedom. However,
they also impose certain limits, which you must accept; even the best scooter does not ignore the laws of
physics.
Regular care and maintenance are essential for preserving value and operating condition of your scooter.
Moreover, what is true for the scooter is also true for the rider: good performance depends on being in good
shape. Riding under the influence of medication, drugs and alcohol is, of course, out of the question. Scooter
riders — more than car drivers — must always be at their mental and physical best. Under the influence of
even small amounts of alcohol, there is a tendency to take dangerous risks.
Protective clothing is as essential for the scooter rider as seat belts are for car drivers and passengers.
Always wear a complete scooter suit (whether made of leather or tear-resistant synthetic materials with
protectors), sturdy boots, scooter gloves and a properly fitting helmet. Optimum protective wear, however,
should not encourage carelessness. Although full-coverage helmets and suits, in particular, create an illu-
sion of total safety and protection, motorcyclists will always be vulnerable. Riders who lack critical self-
control run the risk of going too fast and are apt to take chances. This is even more dangerous in wet
weather. The good motorcyclist rides safely, predictably and defensively — avoiding all dangers, including
those caused by others.
Enjoy your ride!
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GIVE SAFETY THE RIGHT OF WAY
1
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Further safe-riding points
•Be sure to signal clearly when making turns.
•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.
•Slow down as you approach a corner or turn. Once you have completed a turn, accelerate slowly.
•Be careful when passing parked cars. A driver might not see you and open a door in your path.
•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.
•The brake pads could get wet when you wash the scooter. After washing the scooter, check the brakes
before riding.
•Always wear a helmet, gloves, trousers (tapered around the cuff and ankle so they do not flap), and a
bright colored jacket.
•Do not carry too much luggage on the scooter. An overloaded scooter is unstable.
1-2

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DESCRIPTION
Left view .............................................................................................. 2-1
Right view ........................................................................................... 2-2
2

2
DESCRIPTION
Left view
12345 6
78910
1. Rear brake lever (page 3-5)
2. Left handlebar switches (page 3-4)
3. Speedometer unit (page 3-3)
4. Luggage hook (page 3-8)
5. Main switch (page 3-1)
6. Seat lock (page 3-8)
7. Final transmission oil filler cap (page 6-6)
8. Air filter element (page 6-7)
9. Kickstarter (page 3-8)
10. Front brake pads (page 6-12)
2-1

2
DESCRIPTION
Right view
11. Front brake lever (Page 3-4)
12. Throttle grip (Page 6-8)
13. Right handlebar switches (Page 3-4)
14. Front brake fluid reservoir (Page 6-13)
15. Centerstand (Page 6-15)
16. Battery (fuse) (Page 6-17 — 6-19)
17. Anti-theft device housing (Page 3-9)
18. Fuel tank cap (Page 3-5)
19. Oil tank cap (Page 3-5)
11 12 13 14
15
16
18
19
17
2-2

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INSTRUMENT AND CONTROL FUNCTIONS
Main switch / steering lock .................................................................. 3-1
Indicator and warning lights ................................................................ 3-2
Speedometer unit ................................................................................ 3-3
Handlebar switches ............................................................................. 3-4
Front brake lever ................................................................................. 3-4
Rear brake lever ................................................................................. 3-5
Fuel and 2-stroke engine oil tank caps ............................................... 3-5
Fuel ..................................................................................................... 3-6
2-stroke engine oil ............................................................................... 3-7
Catalytic converter .............................................................................. 3-7
Starter (choke) lever ........................................................................... 3-7
Kickstarter ........................................................................................... 3-8
Seat ..................................................................................................... 3-8
Luggage hook ..................................................................................... 3-8
Anti-theft device housing ..................................................................... 3-9
3

3
INSTRUMENT AND CONTROL FUNCTIONS
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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.
PUSH
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OFF “ ”
All electrical systems are off. The key
can be removed.
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*
The 2-stroke engine oil level warning
light should come on. See page 3-2 for
an explanation of the engine oil level
warning light.
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LOCK“ ”
The steering is locked, and all electrical
systems are off. The key can be
removed.
To lock the steering
1. Turn the handlebars all the way
to the left.
2. Push the key in from the “ ” po-
sition, release it, and then turn it
to “ ”.
3. Remove the key.
To unlock the steering
Insert the key and turn it to “ ”.
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Never turn the key to “ ” or “ ”.
while the scooter is moving,
otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident. Make
sure that the scooter is stopped
before turning the key to “ ” or
“”.
NOTE :
Remove the key from the main switch
when the scooter will be left
unattended.
3-1
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ON “ ”
All electrical circuits are supplied with
power, the taillight and meter lighting
come on, and the engine can be
started. The key cannot be removed.
NOTE :
The headlight comes on as soon as the
engine is started.

INSTRUMENT AND CONTROL FUNCTIONS
3
12 34
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Indicator and warning lights
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Turn signal indicator light “ ”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
1. Fuel level warning light “ ”
2. Turn signal indicator light “ ”
3. Oil level warning light “ ”
4. High beam indicator light “ ”
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High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
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Oil level warning light “ ”
This warning light comes on when the
key is in the “*”position or when 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
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 2-
stroke engine oil tank has been refilled.
NOTE :
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 cir-
cuit.
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Do not operate the scooter until you
know that the engine oil level is
sufficient.
3-2
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Fuel level warning light “ ”
This warning light comes on and the
last two segments of the fuel meter will
start to flash when the fuel level drops
below approximately 1.4 L . When this
occurs, refuel as soon as possible.

3
INSTRUMENT AND CONTROL FUNCTIONS
12 3
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1. Speedometer
2. Odometer
3. Fuelmeter
3-3
NOTE:
•Do not allow the fuel tank to empty
itself completely.
•The electrical circuit of the warning
light can be checked as follows.
Turn the key to “ ”. If the warning light
does not come on, have a Yamaha
dealer check the electrical circuit.
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Speedometer unit
The speedometer unit is equipped with
a speedometer, an odometer and a fuel
meter. The speedometer shows riding
speed. The odometer shows the total
distance traveled. The fuel meter
indicates the amount of fuel in the fuel
tank. (See page 3-2 for an explanation
of the fuel level warning light.)