Yamaha NEO-S 50 User Manual
OWNER’S MANUAL
AT115
5MX-F8199-E0
Engine start procedure
Before pushing start button, make sure to
apply the Front or Rear Brake and that the
Sidestand is retracted.
Engine oil replacement
Engine oil replacement : Every 2000 km.
Recommended oil : SAE20W - 50 type
SF Class Motor Oil
V-belt inspection
Periodic maintenance must be performed
by any authorized Yamaha Dealer (Refer to
the Owner's Manual for details.)
Load limit
Convenience hook : 1 kg, Helmet box: 5 kg
5MX-F835Y-00
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INTRODUCTION
Congratulations on your purchase of the Yamaha AT115. This model is the result of
Yamaha’s vast experience in the production of fine sporting, touring, and pacesetting
racing machines. It represents the high degree of craftsmanship and reliability that
have made Yamaha a leader in these fields.
This manual will give you an understanding of the operation, inspection, and basic
maintenance of this motorcycle. If you have any questions concerning the operation
or maintenance of your motorcycle, please consult a Yamaha dealer.
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AT115
OWNER’S MANUAL
©2001 by Yamaha Motor Co., Ltd.
1st edition, December 2001
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Indonesia.
IMPORTANT MANUAL INFORMATION
WARNING
CAUTION:
NOTE:
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
motorcycle operator, a bystander, or a person inspecting or repairing the
motorcycle.
A CAUTION indicates special precautions that must be taken to avoid damage to the
motorcycle.
A NOTE provides key information to make procedures easier or clearer.
NOTE:
_
This manual should be considered a permanent part of this motorcycle and should remain
●
with it even if the motorcycle 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 motorcycle and this manual. If you have
any questions concerning this manual, please consult your Yamaha dealer.
_
WARNING
_
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING
THIS MOTORCYCLE.
_
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5
6
TABLE OF CONTENTS
GIVE SAFETY THE RIGHT OF WAY .................1-1
1
DESCRIPTION ...................................................2-1
2
Left view.............................................................2-1
Right view...........................................................2-2
Controls and instruments ...................................2-3
INSTRUMENT AND CONTROL FUNCTIONS ....3-1
3
Main switch/steering lock ..................................3-1
Indicator lights ...................................................3-2
Speedometer unit ..............................................3-2
Fuel gauge ........................................................3-2
Handlebar switches ...........................................3-3
Front brake lever ...............................................3-4
Rear brake lever ................................................3-4
Fuel tank cap .....................................................3-4
Fuel ...................................................................3-5
Starter (choke) lever .......................................... 3-6
Kickstarter .........................................................3-6
Seat ...................................................................3-6
Helmet box ........................................................3-7
Convenience hook .............................................3-8
PRE-OPERATION CHECKS ...............................4-1
4
Pre-operation check list .....................................4-1
OPERATION AND IMPORTANT RIDING
POINTS................................................................5-1
Starting and warming up a cold engine .............5-1
Starting a warm engine .....................................5-2
Starting off .........................................................5-2
Acceleration and deceleration ...........................5-3
Braking ..............................................................5-3
Engine break-in .................................................5-4
Parking ..............................................................5-5
General note ......................................................5-6
PERIODIC MAINTENANCE AND MINOR
REPAIR................................................................6-1
Owner’s tool kit ..................................................6-1
Periodic maintenance and lubrication chart ......6-2
Removing and installing the cowling and
panels ............................................................6-4
Checking the spark plug ....................................6-7
Engine oil and oil strainer ..................................6-9
Final transmission oil .......................................6-11
Cleaning the air filter element, V-belt case
air filter elements, and check hoses ............6-13
Adjusting the carburetor ..................................6-16
Adjusting the engine idling speed ...................6-17
Adjusting the throttle cable free play ...............6-17
Adjusting the valve clearance .........................6-18
TABLE OF CONTENTS
789
Tires ................................................................ 6-19
Spoke wheels .................................................. 6-21
Checking the front brake lever free play ..........6-21
Adjusting the rear brake lever free play .......... 6-22
Checking the front brake pads and rear
brake shoes .................................................6-23
Checking the brake fluid level .........................6-24
Changing the brake fluid ................................. 6-25
Checking the V-belt ......................................... 6-25
Checking and lubricating the cables ...............6-25
Checking and lubricating the throttle grip
and cable .....................................................6-26
Lubricating the front and rear brake levers .....6-26
Checking and lubricating the centerstand
and sidestand .............................................. 6-27
Checking the front fork .................................... 6-27
Checking the steering ..................................... 6-28
Checking the wheel bearings .......................... 6-29
Battery ............................................................. 6-29
Replacing the fuse .......................................... 6-31
Replacing a headlight bulb ..............................6-33
Replacing a front turn signal light bulb ............ 6-34
Replacing the tail/brake light bulb or a rear
turn signal light bulb .................................... 6-35
Troubleshooting .............................................. 6-37
Troubleshooting chart .....................................6-38
MOTORCYCLE CLEANING AND STORAGE.....7-1
A. CLEANING ....................................................7-1
B. STORAGE ..................................................... 7-1
SPECIFICATIONS...............................................8-1
Specifications .................................................... 8-1
CONSUMER INFORMATION..............................9-1
Identification numbers .......................................9-1
Frame serial number .........................................9-1
Engine serial number ........................................ 9-1
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1-
GIVE SAFETY THE RIGHT OF WAY
Motorcycles 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 motorcycle
does not ignore the laws of physics.
Regular care and maintenance are essential for preserving value and operating condition of your
motorcycle. Moreover, what is true for the motorcycle 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. Motorcycle 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 motorcycle rider as seat belts are for car drivers and
passengers. Always wear a complete motorcycle suit (whether made of leather or tear-resistant
synthetic materials with protectors), sturdy boots, motorcycle gloves and a properly fitting helmet.
Optimum protective wear, however, should not encourage carelessness. Although full-coverage
helmets and suits, in particular, create an illusion 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!
1
2
3
4
5
6
7
8
9
1-1
DESCRIPTION
2-
Left view
2
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1. Convenience hook (page 3-8)
2. Throttle stop screw (page 6-17)
3. Helmet box, Owner’s tool kit (page 3-7, page 6-1)
4. Kickstarter (page 3-6)
5. Engine oil drain bolt B (page 6-10)
6. Engine oil drain bolt A (page 6-10)
2-1
Right view
7. Engine oil filler cap (page 6-9)
8. Air filter element (page 6-13)
9. Battery (page 6-29)
10. Fuses (page 6-31)
DESCRIPTION
2
2-2
DESCRIPTION
Controls and instruments
2
1. Rear brake lever (page 3-4)
2. Starter choke lever (page 3-6)
3. Left handlebar switches (page 3-3)
4. Speedometer unit (page 3-2)
5. Fuel gauge (page 3-2)
6. Start switch (page 3-3)
7. Throttle grip (page 6-17)
8. Front brake lever (page 3-4)
2-3
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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.
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ON
All electrical systems are supplied with
power, and the meter lighting comes
on, and the engine can be started. The
key cannot be removed.
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OFF
All electrical systems are off. The key
can be removed.
INSTRUMENT AND CONTROL FUNCTIONS
3-
1. Push.
LOCK
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The steering is locked, and all electrical
systems are off. The key can be re-
2. Turn.
To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
moved.
WARNING
To lock the steering
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.
3-1
_
Never turn the key to “OFF” or
“LOCK” while the motorcycle is
moving, otherwise the electrical
systems will be switched off, which
may result in loss of control or an
accident. Make sure that the motorcycle is stopped before turning the
key to “OFF” or “LOCK”.
_
3
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INSTRUMENT AND CONTROL FUNCTIONS
3
1. Left turn signal indicator light “”
2. Right turn signal indicator light “”
3. High beam indicator light “”
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Indicator lights
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Turn signal indicator lights “”
and “”
The corresponding indicator light flashes when the turn signal switch is
pushed to the left or right.
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High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
1. Speedometer
2. Odometer
Speedometer unit
The speedometer unit is equipped with
a speedometer and an odometer. The
speedometer shows riding speed. The
odometer shows the total distance traveled.
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1. Fuel gauge
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Fuel gauge
The fuel gauge indicates the amount of
fuel in the fuel tank. The needle moves
towards “E” (Empty) as the fuel level
decreases. When the needle reaches
the red line, refuel as soon as possible.
NOTE:
_
Do not allow the fuel tank to empty
●
itself completely.
Turning the key to “OFF” cancel
●
the fuel gauge reading.
_
3-2
INSTRUMENT AND CONTROL FUNCTIONS
1. Light switch “ / ”
2. Dimmer switch “ / ”
3. Turn signal switch “ / ”
4. Horn switch “HORN”
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Handlebar switches
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Light switch “ / ”
Set the light switch to “” to turn on
the headlight and the taillight. Set this
switch to “” to turn them off.
Dimmer switch “ / ”
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Set this switch to “” for the high
beam and to “” for the low beam.
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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.
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Horn switch “HORN”
Press this switch to sound the horn.
1. Start switch “START”
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Start switch “START”
Push this switch to crank the engine
with the starter.
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CAUTION:
_
See page 5-1 for starting instructions prior to starting the engine.
_
3
3-3
INSTRUMENT AND CONTROL FUNCTIONS
3
1. Front brake lever 1. Rear brake lever 1. Fuel tank cap
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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.
Rear brake lever
The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the handlebar grip.
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a. Open.
b. Close.
Fuel tank cap
To remove the fuel tank cap
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1. Open the seat. (See page 3-6 for
seat opening and closing procedures.)
2. Turn the fuel tank cap counterclockwise and pull it off.
3-4
To install the fuel tank cap
1. Insert the fuel tank cap into the
tank opening and turn it clockwise
until the alignment marks on the
cap and tank are aligned.
2. Close the seat.
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WARNING
_
Make sure that the fuel tank cap is
properly installed before riding.
_
INSTRUMENT AND CONTROL FUNCTIONS
CAUTION:
_
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfaces or plastic parts.
_
1. Fuel tank filler tube
2. Fuel level
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Fuel
Make sure that there is sufficient fuel in
the tank. Fill the fuel tank to the bottom
of the filler tube as shown.
WARNING
_
●
Do not overfill the fuel tank, otherwise it may overflow when the
fuel warms up and expands.
●
Avoid spilling fuel on the hot
engine.
_
EW000130
Recommended fuel:
Regular gasoline
Fuel tank capacity:
Total amount:
4.9 L
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3
3-5
INSTRUMENT AND CONTROL FUNCTIONS
3
1. Starter (choke) lever “” 1. Kickstarter 1. Open.
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Starter (choke) lever “”
Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction a to turn on
the starter (choke).
Move the lever in direction b to turn off
the starter (choke).
Kickstarter
To start the engine, fold out the kickstarter lever, move it down lightly with
your foot until the gears engage, and
then push it down smoothly but forcefully.
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Seat
To open the seat
1. Place the motorcycle on the centerstand.
2. Insert the key into the main switch,
and then turn it counterclockwise.
NOTE:
_
Do not push inward when turning the
key.
_
3. Fold the seat up.
3-6
INSTRUMENT AND CONTROL FUNCTIONS
To close the seat
1. Fold the seat down, and then push
it down to lock it in place.
2. Remove the key from the main
switch if the motorcycle will be left
unattended.
NOTE:
_
Make sure that the seat is properly secured before riding.
_
1. Helmet box
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Helmet box
There is a helmet box under the seat.
(See page 3-6 for seat opening and
closing procedures.)
WARNING
_
●
Do not exceed the load limit of
5 kg for the helmet box.
●
Do not exceed the maximum
load of 116 kg for the vehicle.
_
EWA00005*
EC000010*
CAUTION:
_
Keep the following points in mind
when using the helmet box.
●
Since the helmet box accumulates heat when exposed to the
sun, do not store anything susceptible to heat inside it.
●
To avoid humidity from spreading through the helmet box,
wrap wet articles in a plastic
bag before storing them in the
box.
●
Since the helmet box may get
wet while the motorcycle is being washed, wrap any articles
stored in the box in a plastic
bag.
●
Do not keep anything valuable
or breakable in the helmet box.
_
3
3-7
INSTRUMENT AND CONTROL FUNCTIONS
To store a helmet in the helmet box,
place the helmet upside-down with the
front facing forward.
NOTE:
_
Some helmets cannot be stored in
●
the helmet box because of their
3
size or shape.
Do not leave your motorcycle un-
●
attended with the seat open.
_
1. Convenience hook
Convenience hook
WARNING
_
●
Do not exceed the load limit of
1 kg for the convenience hook.
●
Do not exceed the maximum
load of 116 kg for the vehicle.
_
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3-8
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PRE-OPERATION CHECKS
4-
The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspection, to check the following points before each ride.
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Pre-operation check list
CO-01E
Fuel
Engine oil
Final transmission oil
Front brake
Rear brake
Throttle grip
Control cables
Wheels and tires
ITEM CHECKS PAGE
• Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.
• Check vehicle for oil leakage. 6-11–6-12
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• Check lever free play.
• Adjust if necessary.
• Make sure that operation is smooth.
• Check cable free play.
• If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.
• Make sure that operation is smooth.
• Lubricate if necessary.
• Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.
4-1
3-5
6-9
6-21–6-24
6-22–6-23
6-17–6-18, 6-26
6-25
6-19–6-21
4
PRE-OPERATION CHECKS
ITEM CHECKS PAGE
Brake levers
Centerstand, sidestand
Chassis fasteners
Instruments, lights, signals
and switches
Battery
4
NOTE:
_
Pre-operation checks should be made each time the motorcycle is used. Such an inspection can be accomplished in a very
short time; and the added safety it assures is more than worth the time involved.
_
WARNING
_
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operating
the motorcycle.
_
• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.
• Make sure that operation is smooth.
• Lubricate pivots if necessary.
• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.
• Check operation.
• Correct if necessary.
• Check fluid level.
• Fill with distilled water if necessary.
6-26
6-27
—
—
6-29–6-31
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4-2
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WARNING
_
Become thoroughly familiar
●
with all operating controls and
their functions before riding.
Consult a Yamaha dealer regarding any control or function
that you do not thoroughly understand.
Never start the engine or oper-
●
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of consciousness and death within a
short time. Always make sure
that there is adequate ventilation.
For safety, always start the en-
●
gine with the centerstand.
Before starting out, make sure
●
that the sidestand is up. If the
sidestand is not raised completely, it could contact the
ground and distract the operator, resulting in a possible loss
of control.
_
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OPERATION AND IMPORTANT RIDING POINTS
5-
1. Starter (choke) lever “” 1. Start switch “START”
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Starting and warming up a
cold engine
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CAUTION:
_
See page 5-4 for engine break-in instructions prior to operating the vehicle for the first time.
_
1. Turn the key to “ON”.
2. Turn on the starter (choke) and
completely close the throttle grip.
(See page 3-6 for starter (choke)
operation.)
2. Kickstarter
3. Start the engine by pushing the
start switch, while applying the
front or rear brake or by pushing
the kickstarter lever down.
NOTE:
_
If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to preserve the battery. Do not crank the engine more than 5 seconds on any one
attempt. If the engine does not start
with the starter motor, try using the
kickstarter with the motorcycle on the
centerstand.
_
5-1
5
OPERATION AND IMPORTANT RIDING POINTS
4. After starting the engine, move the
starter (choke) back about halfway.
CAUTION:
_
For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when the
engine is cold!
_
5. When the engine is warm, turn the
starter (choke) off.
5
NOTE:
_
For maximum engine life, always warm
up the engine before riding your motorcycle. Never accelerate hard with a
cold engine.
_
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Starting a warm engine
Follow the same procedure as for starting a cold engine with the exception
that the starter (choke) is not required
when the engine is warm.
5-2
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Starting off
NOTE:
_
Before starting off, allow the engine to
warm up.
_
1. While pulling the rear brake lever
with your left hand and holding the
grab bar with your right hand, push
the motorcycle off the centerstand.
2. Sit astride the seat, and then adjust the rear view mirrors.
3. Switch the turn signal on.
4. Check for oncoming traffic, and
then slowly turn the throttle grip
(on the right) in order to take off.
5. Switch the turn signal off.
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