Read this manual carefully before operating this vehicle.
OWNER’S MANUAL
YW50Z
5PJ-F8199-16LIT-11626-23-67
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INTRODUCTION
Congratulations on your purchase of the Yamaha YW50Z. This model is the result of Yamaha’s vast experience in the
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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. Regular inspections and careful maintenance, along with good riding skills, will ensure that you safely enjoy the capabilities and reliability of this scooter.
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IMPORTANT MANUAL INFORMATION
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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
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hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
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WARNING
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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.
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IMPORTANT MANUAL INFORMATION
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EAUT2191
YW50Z
OWNER’S MANUAL
©2009 by Yamaha Motor Corporation, U.S.A.
1st edition, August 2009
All 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-11626-23-67
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TABLE OF CONTENTS
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LOCATION OF IMPORTANT LABELS 1-1
SAFETY INFORMATION .................... 1-3
Further safe-riding points ................ 1-7
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DESCRIPTION ................................... 2-1
Left view .......................................... 2-1
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Right view ........................................ 2-2
Controls and instruments ................ 2-3
INSTRUMENT AND CONTROL FUNC-
TIONS ................................................. 3-1
Main switch/steering lock ................ 3-1
Indicator and warning lights ............ 3-2
Speedometer unit ............................ 3-3
Fuel gauge ...................................... 3-3
Handlebar switches ........................ 3-3
Front brake lever ............................. 3-4
Rear brake lever ............................. 3-5
Fuel and 2-stroke engine oil tank
caps ............................................. 3-5
Fuel ................................................. 3-6
Catalytic converter ..........................3-7
2-stroke engine oil ..........................3-8
Kickstarter ........................................ 3-8
Seat ................................................. 3-9
Helmet holder .................................. 3-9
Storage compartments ..................3-10
Carrier ........................................... 3-11
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 ........ 5-3
Braking ............................................5-3
Tips for reducing fuel consumption . 5-4
Engine break-in ............................... 5-4
Parking ............................................5-5
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Owner’s tool kit ................................6-1
Periodic maintenance chart for the
emission control system ..............6-3
General maintenance and lubrication
chart ............................................. 6-4
Removing and installing the panel . 6-8
Checking the spark plug ................. 6-8
Final transmission oil ....................6-10
Air filter element ............................6-11
Carburetor .....................................6-11
Checking the engine idling speed 6-11
Checking the throttle cable free
play ............................................ 6-12
Tires ............................................... 6-12
Cast wheels ................................... 6-14
Checking the front brake lever free
play ............................................ 6-14
Adjusting the rear brake lever free
play ............................................ 6-14
Checking the front brake pads and rear
brake shoes ...............................6-15
Checking the brake fluid level ......6-16
Changing the brake fluid ..............6-17
Checking and lubricating the
cables ........................................ 6-17
Checking and lubricating the throttle
grip and cable ............................6-18
Adjusting the Autolube pump ........ 6-18
Lubricating the front and rear brake
levers ......................................... 6-18
Checking and lubricating the
centerstand ................................6-19
Checking the front fork ..................6-20
Checking the steering ................... 6-20
Checking the wheel bearings ....... 6-21
Battery ........................................... 6-21
Replacing the fuse ........................ 6-23
Troubleshooting ............................6-23
Troubleshooting chart ................... 6-25
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
Reporting safety defects ................. 9-3
Scooter 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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TABLE OF CONTENTS
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Labels, location<IXE>
LOCATION OF IMPORTANT LABELS
LOCATION OF IMPORTANT LABELS
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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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Safety information<IXE>
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SAFETY INFORMATION
SAFETY INFORMATION
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Be a Responsible Owner
As the vehicle’s owner, you are responsible for the safe and proper operation
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of your scooter.
Scooters are single-track vehicles.
Their safe use and operation are depen-
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dent upon the use of proper riding techniques as well as the expertise of the
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operator. Every operator should know the
following requirements before riding this
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scooter.
He or she should:
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● Obtain thorough instructions from
a competent source on all aspects
of scooter operation.
● Observe the warnings and mainte-
nance requirements in this Owner’s
Manual.
● 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 necessary by mechanical conditions.
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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
4-2 for a list of pre-operation checks.
● 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 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.
● Many accidents involve inexperi-
enced 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.
● 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
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excessive speed or undercornering
(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.
● 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.
● Never ride under the influence of
alcohol or other drugs.
● This scooter is designed for on-road
use only. It is not suitable for offroad 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.
● Always wear an approved helmet.
● Wear a face shield or goggles. Wind
in your unprotected eyes could contribute to an impairment of vision
that could delay seeing a hazard.
● The use of a jacket, substantial
shoes, trousers, gloves, etc., is
effective in preventing or reducing
abrasions or lacerations.
● Never wear loose-fitting clothes,
otherwise they could catch on the
control levers or wheels and cause
injury or an accident.
● 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.
● 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.
● Do not run engine indoors. Even if
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you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
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idly reach dangerous levels.
● Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or carports.
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● Do not run engine outdoors where
engine exhaust can be drawn into
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a building through openings such
as windows and doors.
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Loading
Adding accessories or cargo to your
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scooter can adversely affect stability
and handling if the weight distribution of
the scooter is changed. To avoid the
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possibility of an accident, use extreme
caution when adding cargo or accesso-
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ries to your scooter. Use extra care when
riding a scooter that has added cargo or
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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.
Maximum load:
143 kg (315 lb)
When loading within this weight limit,
keep the following in mind:
● 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.
● Shifting weights can create a sud-
den imbalance. Make sure that accessories and cargo are securely
attached to the scooter before riding.
Check accessory mounts and
cargo restraints frequently.
• Properly adjust the suspension
for your load (suspensionadjustable models only), and
check the condition and
pressure 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
response.
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
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aftermarket companies produce. Therefore, Yamaha can neither endorse nor
recommend the use of accessories not
sold by Yamaha or 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.
● 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 freedom of movement of
the operator and may limit
control ability, therefore, such
accessories are not recommended.
● Use caution when adding electrical
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 appropri-
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Safe-riding points<IXE>
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ate. Refer to page 6-12 for tire specifications and more information on replacing your tires.
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Further safe-riding points
● Make sure to signal clearly when
making turns.
ZAUM00**
Turn left
ZAUM00**
Turn right
● 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 cor-
ner 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 lining could get wet when
you wash the scooter. After washing the scooter, check the brakes
before riding.
● Always wear a helmet, gloves, trou-
sers (tapered around the cuff and
ankle so they do not flap), and a
bright colored jacket.
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● Do not carry too much luggage on
the scooter. An overloaded scooter
is unstable. Use a strong cord to
secure any luggage to the carriers.
A loose load will affect the stability
of the scooter and could divert your
attention from the road. (See page
1-3.)
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Part locations<IXE>
DESCRIPTION
DESCRIPTION
Left view
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1. Front wheel (page 6-12)
2. Front brake caliper (page 6-15)
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3. Front turn signal light
4. Helmet holder (page 3-9)
5. Storage compartment (page 3-10)
6. Rear turn signal light
7. Rear wheel (page 6-12)
8. Adjusting nut (page 6-14)
9. Kickstarter (page 3-8)
10.Air filter element (page 6-11)
11.Battery (page 6-21)
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Right view
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DESCRIPTION
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1. Tail/brake light
2. Carrier (page 3-11)
3. Fuel tank cap (page 3-5)
4. 2-stroke engine oil tank cap (page 3-5)
5. Seat (page 3-9)
6. Headlight
7. Spark plug (page 6-8)
8. Centerstand (page 6-19)
9. Muffler (page 3-7)
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2-2
DESCRIPTION
Controls and instruments
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1. Rear brake lever (page 3-5)
2. Left handlebar switches (page 3-3)
3. Speedometer unit (page 3-3)
4 Fuel gauge (page 3-3)
5. Right handlebar switches (page 3-3)
6. Front brake lever (page 3-4)
7. Throttle grip (page 6-12)
8. Main switch/steering lock (page 3-1)
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2-3
Main switch/steering lock<IXE>
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INSTRUMENT AND CONTROL FUNCTIONS
INSTRUMENT AND CONTROL FUNCTIONS
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Main switch/steering lock
OFF
LOCK
ZAUM00**
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
ON
All electrical circuits are supplied with
power, the taillight and the license plate
light come on, and the engine can be
started. The key cannot be removed.
TIP
The headlight and meter lighting come
on automatically when the engine is
started.
ON
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OFF
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All electrical systems are off. The key
can be removed.
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WARNING
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.
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*
The 2-stroke engine oil level warning light
should come on. (See page 3-2.)
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LOCK
The steering is locked, and all electrical
systems are off. The key can be removed.
To lock the steering
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1. Push.
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.
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Two-stroke engine oil level warning light<IXE>
NOTICE
INSTRUMENT AND CONTROL FUNCTIONS
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To unlock the steering
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2
2
3
ZAUM00**
4
1. Turn.
2. Release.
5
Push the key in, and then turn it to “OFF”
while still pushing it.
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Indicator and warning lights
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2
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30
40
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10
30
50
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km/h
60
40
0
0
MPH
0000001
ZAUM00**
1. Turn signal indicator light "5"
2. High beam indicator light "&"
3. 2-stroke engine oil level warning light
"7 "
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Turn signal indicator light “
This 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.
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&&
&”
&&
66
6”
66
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2-stroke engine oil level warning
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light “
7”
77
The warning light comes on if the key is
in the “*” position or when the engine 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 an equivalent 2-stroke
engine oil. The warning light should go
off after the 2-stroke engine oil tank has
been refilled.
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If the 2-stroke engine oil level 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.
ECA12720
Do not operate the vehicle until you
know that the 2-stroke engine oil level
is sufficient.
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3-2
Handlebar switches<IXE>
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INSTRUMENT AND CONTROL FUNCTIONS
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Speedometer unit
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ZAUM00**
1. Speedometer
2. Odometer
The speedometer unit is equipped with
a speedometer and an odometer. The
speedometer shows the riding speed.
The odometer shows the total distance
traveled.
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30
40
20
10
30
50
10
km/h
60
40
0
0
MPH
0000001
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Fuel gauge
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30
40
20
10
30
50
10
km/h
60
40
0
0
MPH
0000001
ZAUM00**
1. 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
“E”, refuel as soon as possible.
TIP
Do not allow the fuel tank to empty itself completely.
Handlebar switches
Left
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ZAUM00**
1. Dimmer switch "%/&"
2. Turn signal switch "4/6"
3. Horn switch "*"
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Brake lever, front<IXE>
INSTRUMENT AND CONTROL FUNCTIONS
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Right
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ENGINE STOP
2
3
ZAUM00**
4
1. Engine stop switch “#/$”
2. Start switch ","
5
Dimmer switch “
6
Set this switch to “&” for the high beam
START
2
&&
&/
&&
%%
%”
%%
and to “%” for the low beam.
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44
Turn signal switch “
8
To signal a right-hand turn, push this
4/
44
66
6”
66
switch to “6”. To signal a left-hand turn,
push this switch to “4”. When released,
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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 “
**
*”
**
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Press this switch to sound the horn.
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Engine stop switch “
##
#/
##
$$
$”
$$
Set this switch to “#” before starting the
engine. Set this switch to “$” to stop
the engine in case of an emergency,
such as when the motorcycle overturns
or when the throttle cable is stuck.
Start switch “
,,
,”
,,
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Push this switch to crank the engine with
the starter. See page 5-1 for starting instructions prior to starting the engine.
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Front brake lever
ZAUM00**
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.
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Fuel and 2-stroke engine oil tank caps<IXE>
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INSTRUMENT AND CONTROL FUNCTIONS
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Rear brake lever
ZAUM00**
1. 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.
EAUT1031
Fuel and 2-stroke engine oil
tank caps
The fuel tank cap and the 2-stroke engine oil tank cap are located under the
seat. (See page 3-9.)
Fuel tank cap
To remove the fuel tank cap
2
1
ZAUM00**
1. Fuel tank cap
2. Fuel tank cap lock lever
Lift the fuel tank cap lock lever and then
turn it from the “LOCK” position to the
“OPEN” position. The fuel tank cap can
then be removed.
To install the fuel tank cap
Insert the fuel tank cap into the tank
opening with the mark on the cap and
fuel filler aligned. Turn the lever to the
“LOCK” position, and then push it down.
EWA10121
WARNING
Make sure that the fuel tank cap is
properly closed and locked before
riding. Leaking fuel is a fire hazard.
2-stroke engine oil tank cap
1
ZAUM00**
1. 2-stroke engine oil tank cap
1
2
3
4
5
6
7
8
9
3-23
3-5
Fuel<IXE>
WARNING
INSTRUMENT AND CONTROL FUNCTIONS
EAU1044D
Remove the 2-stroke engine oil tank cap
by turning it counterclockwise.
Install the 2-stroke engine oil tank cap
by turning it clockwise.
1
2
WARNING
Make sure that the fuel and 2-stroke
engine oil tank caps are properly in-
3
stalled before riding the scooter.
Leaking fuel is a fire hazard.
4
5
6
7
8
9
EWA10141
EAU13212
Fuel
1
ZAUM00**
1. Fuel tank filler tube
2. Fuel level
Make sure there is sufficient gasoline
in the tank.
WARNING
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the risk
of injury when refueling, follow these
instructions.
1. Before refueling, turn off the engine
and be sure that no one is sitting
2
EWA10881
on the vehicle. Never refuel while
smoking, or while in the vicinity of
sparks, open flames, or other
sources of ignition such as the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the bottom of the filler tube. Because fuel
expands when it heats up, heat
from the engine or the sun can
cause fuel to spill out of the fuel
tank.
3. Wipe up any spilled fuel immediately.
NOTICE:
Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteriorate painted surfaces or plastic parts.[ECA10071]
4. Be sure to securely close the fuel
tank cap.
EWA15151
Gasoline is poisonous and can cause
injury or death. Handle gasoline with
care. Never siphon gasoline by
3-24
3-6
Catalytic converter<IXE>
EAU1044D
INSTRUMENT AND CONTROL FUNCTIONS
mouth. If you should swallow some
gasoline or inhale a lot of gasoline
vapor, or get some gasoline in your
eyes, see your doctor immediately. If
gasoline spills on your skin, wash
with soap and water. If gasoline spills
on your clothing, change your
clothes.
EAU40681
Recommended fuel:
UNLEADED GASOLINE ONLY
Fuel tank capacity:
5.7 L (1.5 US gal, 1.25 Imp.gal)
Your Yamaha engine has been designed
to use regular unleaded gasoline with a
pump octane number [(R+M)/2] of 86 or
higher, or a research octane number of
91 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand
or premium unleaded fuel. Use of unleaded fuel will extend spark plug life
and reduce maintenance costs.
Gasohol
There are two types of gasohol: gasohol containing ethanol and that containing methanol. Gasohol containing ethanol can be used if the ethanol content
does not exceed 10% (E10). Gasohol
containing methanol is not recommended by Yamaha because it can
cause damage to the fuel system or
vehicle performance problems.
EAU13433
Catalytic converter
This model is equipped with a catalytic
converter in the exhaust system.
WARNING
The exhaust system is hot after operation. To prevent a fire hazard or
burns:
●●
● Do not park the vehicle near pos-
●●
sible fire hazards such as grass
or other materials that easily
burn.
●●
● Park the vehicle in a place where
●●
pedestrians or children are not
likely to touch the hot exhaust
system.
●●
● Make sure that the exhaust sys-
●●
tem has cooled down before doing any maintenance work.
●●
● Do not allow the engine to idle
●●
more than a few minutes. Long
idling can cause a build-up of
heat.
EWA10862
1
2
3
4
5
6
7
8
9
3-25
3-7
Kickstarter<IXE>
INSTRUMENT AND CONTROL FUNCTIONS
EAU1044D
NOTICE
Use only unleaded gasoline. The use
1
of leaded gasoline will cause
unrepairable damage to the catalytic
converter.
2
3
4
5
6
7
8
9
ECA10701
EAU13453
2-stroke engine oil
Make sure that there is sufficient 2stroke engine oil in the oil tank. Add the
recommended 2-stroke engine oil as
necessary.
1
ZAUM00**
1. 2-stroke engine oil tank cap
Recommended oil:
See page 8-1.
Oil quantity:
1.4 L (1.48 US qt) (1.23 Imp.qt)
ECA16670
NOTICE
Make sure that the 2-stroke engine oil
tank cap is properly installed.
EAU13680
Kickstarter
1
ZAUM00**
1. Kickstarter lever
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.
3-26
3-8
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