Yamaha Nmax 125 Manual

							
Read this manual carefully before operating this vehicle.
YW125Z
OWNER’S MANUAL
32S-F8199-11
LIT-11626-23-66 
						

							
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INTRODUCTION
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Congratulations on your purchase of the Yamaha YW125Z. 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 scooter. If you have
any questions concerning the operation or maintenance of your scooter, please consult a Yamaha dealer.
The design and manufacture of this Yamaha scooter fully comply with the emissions standards for clean air applicable at the
date of manufacture. Yamaha has met these standards without reducing the performance or economy of operation of the
scooter. To maintain these high standards, it is important that you and your Yamaha dealer pay close attention to the
recommended maintenance schedules and operating instructions contained within this manual.
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 there is any question concerning this manual, please consult a Yamaha dealer.
EWA12581
WARNING
Please read this manual and the “YOU AND YOUR MOTORCYCLE: RIDING TIPS” booklet carefully and completely
before operating this scooter. Do not attempt to operate this scooter until you have attained adequate knowledge
of its controls and operating features and until you have been trained in safe and proper riding techniques. Regu-
lar inspections and careful maintenance, along with good riding skills, will ensure that you safely enjoy the capa-
bilities and reliability of this scooter. 
						

							
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IMPORTANT MANUAL INFORMATIONQ
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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.
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.
WARNING
NOTICETIP 
						

							
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IMPORTANT MANUAL INFORMATION
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YW125Z
OWNER’S MANUAL
©2009 by Yamaha Motor Corporation, U.S.A.
1st edition, July 2009All rights reserved.
Any reprinting or unauthorized use without
the written permission of Yamaha
Motor Corporation, U.S.A. is expressly prohibited.
Printed in Taiwan.
P/N LIT-11626-23-66 
						

							
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TABLE OF CONTENTSLOCATION OF IMPORTANT
LABELS .............................................. 1-1
SAFETY INFORMATION .................... 1-3Further safe-riding points ................ 1-7
DESCRIPTION ................................... 2-1 Left view .......................................... 2-1
Right view ........................................ 2-2
Controls and instruments ................ 2-3
INSTRUMENT AND CONTROL FUNC-
TIONS ................................................. 3-1
Main switch/steering lock ................ 3-1
Keyhole cover ................................. 3-2
Indicator lights ................................. 3-2
Speedometer unit ............................ 3-3
Fuel gauge ...................................... 3-3
Handlebar switches ........................ 3-4
Front brake lever ............................. 3-5
Rear brake lever ............................. 3-5
Fuel tank cap ................................... 3-5
Fuel ................................................. 3-6
Catalytic converter .......................... 3-7
Seat ................................................. 3-8
Helmet holder .................................. 3-9
Storage compartment ...................... 3-9
Sidestand ...................................... 3-10
Ignition circuit cut-off system ......... 3-11FOR YOUR SAFETY - PRE-OPERATION
CHECKS
............................................ 4-1
OPERATION AND IMPORTANT RIDING
POINTS ............................................... 5-1
Starting the engine .......................... 5-1
Starting off ....................................... 5-2
Acceleration and  deceleration........ 5-2
Braking ............................................ 5-2
Tips for reducing fuel consumption . 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Owner’s tool kit ................................ 6-2
Periodic maintenance chart for the emission control system .............. 6-3
General maintenance and lubrication chart ............................................. 6-4
Removing and installing panels ..... 6-8
Checking the spark plug ................. 6-9
Engine oil ...................................... 6-10
Final transmission oil .................... 6-12
Air filter and V-belt case air filter elements .................................... 6-13
Checking the engine idling speed ......................................... 6-15
Checking the throttle cable free
play ............................................ 6-15Valve 
clearance ............................. 6-15
Tires ............................................... 6-16
Cast wheels ................................... 6-17
Checking the front brake lever free play ............................................ 6-18
Adjusting the rear brake lever free play ............................................ 6-18
Checking the front brake pads and rear
brake shoes ............................... 6-19
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-21
Checking and lubricating the
cables ........................................ 6-21
Checking and lubricating the throttle
grip and cable ............................ 6-22
Lubricating the front and rear brake levers ......................................... 6-22
Checking and lubricating the centerstand and sidestand ........ 6-22
Checking the front fork .................. 6-23
Checking the steering ................... 6-24
Checking the wheel bearings ....... 6-24
Battery ........................................... 6-25
Replacing the fuses ...................... 6-26
Replacing a headlight bulb ........... 6-27
Tail/brak e light............................... 6-28
Replacing a turn signal light bulb . 6-28
Troubleshooting ............................ 6-29
Troubleshooting  chart................... 6-30 
						

							
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TABLE OF CONTENTS
SCOOTER CARE AND STORAGE .... 7-1Matte color caution .......................... 7-1
Care ................................................. 7-1
Storage ............................................ 7-3
SPECIFICATIONS .............................. 8-1
CONSUMER INFORMATION ............. 9-1 Identification numbers ..................... 9-1
Reporting safety defects ................. 9-3
Motorcycle noise regulation ............ 9-4
Maintenance record ........................ 9-5
YAMAHA MOTOR CORPORATION, U.S.A. RIVA LIMITED
WARRANTY ................................. 9-7
YAMAHA EXTENDED SERVICE (Y.E.S.) .......................................... 9-9 
						

							
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LOCATION OF IMPORTANT LABELS
1-1
Labels, location
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Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of
your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement
label is available from your Yamaha dealer.
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LOCATION OF IMPORTANT LABELS
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LOCATION OF IMPORTANT LABELS1-2
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175kpa, {1.75kgf/cm
2},25psi
200kpa, {2.00kgf/cm2},29psi
225kpa, {2.25kgf/cm2},33psi
200kpa, {2.00kgf/cm2},29psi
24P-F1668-00
4JK-F8446-01 
						

							
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 SAFETY INFORMATION
1-3
Safety information
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Be a Responsible Owner
As the vehicle’s owner, you are respon-
sible for the safe and proper operation
of your scooter.
Scooters are single-track vehicles.
Their safe use and operation are depen-
dent upon the use of proper riding tech-
niques as well as the expertise of the
operator. Every operator should know the
following requirements before riding this
scooter.
He or she should:●
Obtain thorough instructions from
a competent source on all aspects
of scooter operation.
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Observe the warnings and mainte-
nance requirements in this Owner’s
Manual.
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Obtain qualified training in safe and
proper riding techniques.
●
Obtain professional technical ser-
vice as indicated in this Owner’s
Manual and/or when made neces-
sary 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 prop-
erly increases the possibility of an acci-
dent or equipment damage. See page
4-2 for a list of pre-operation checks.
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This scooter is designed to carry
the operator and a passenger.
●
The failure of motorists to detect
and recognize scooters in traffic is
the predominating cause of auto-
mobile/scooter accidents. Many
accidents have been caused by an
automobile driver who did not see
the scooter. Making yourself con-
spicuous appears to be very effec-
tive in reducing the chance of this
type of accident.
Therefore:  Wear a brightly colored jacket.
 Use extra caution when you areapproaching 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.
●
Many accidents involve inexperi-
enced operators. In fact, many op-
erators who have been involved in
accidents do not even have a cur-
rent driver’s license.
 Make sure that you are quali-fied 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.
●
Many accidents have been caused
by error of the scooter operator. A
typical error made by the operator
is veering wide on a turn due to