Yamaha VINO User Manual

OWNER’S MANUAL

YJ50RR

YJ50RAR

LIT-11626-16-23

5LY-28199-13

EAU03438

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INTRODUCTION

Congratulations on your purchase of the Yamaha YJ50R. 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.

IMPORTANT MANUAL INFORMATION

Particularly important information is distinguished in this manual by the following notations:

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NOTE:

NOTE:

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.

A NOTE provides key information to make procedures easier or clearer.

8 This manual should be considered a permanent part of this scooter and should remain with it

even if the scooter is subsequently sold.

8 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.

IMPORTANT MANUAL INFORMATION

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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 THE RELIABILITY OF THIS SCOOTER.

AFFIX DEALER

LABEL HERE

YJ50RR/YJ50RAR

OWNER’S MANUAL

©2002 by Yamaha Motor Corporation, U.S.A.

1st edition, April 2002

All rights reserved.

Any reprinting or unauthorized use

without the written permission of

Yamaha Motor Corporation, U.S.A.

is expressly prohibited.

Printed in Japan.

P/N LIT-11626-16-23

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TABLE OF CONTENTS

SAFETY INFORMATION ...................................1-1

1

Safe riding .......................................................1-1

Protective apparel ...........................................1-2

Modifications ...................................................1-3

Loading and accessories ................................1-3

Gasoline and exhaust gas ...............................1-5

Further safe-riding points ................................1-6

Location of important labels ............................1-7

DESCRIPTION ...................................................2-1

2

Left view ..........................................................2-1

Right view ........................................................2-2

Controls and instruments ................................2-3

INSTRUMENT AND CONTROL

3

FUNCTIONS ......................................................3-1

Main switch/steering lock ................................3-1

Indicator and warning lights .............................3-2

Speedometer unit ............................................3-3

Fuel gauge ......................................................3-4

Handlebar switches .........................................3-4

Front brake lever .............................................3-5

Rear brake lever ..............................................3-5

Fuel tank cap ...................................................3-6

Fuel .................................................................3-7

2-stroke engine oil ...........................................3-8

Kickstarter .......................................................3-9

Seat .................................................................3-9

Helmet holder ................................................3-10

Storage compartment ....................................3-10

Carrier ...........................................................3-11

PRE-OPERATION CHECKS ..............................4-1

4

Pre-operation check list ...................................4-1

OPERATION AND IMPORTANT RIDING

5

POINTS ..............................................................5-1

Starting and warming up a cold engine ...........5-1

Starting off .......................................................5-2

Acceleration and deceleration .........................5-3

Braking ............................................................5-3

Engine break-in ...............................................5-4

Parking ............................................................5-5

PERIODIC MAINTENANCE AND MINOR

6

REPAIR ..............................................................6-1

Periodic maintenance and lubrication chart ....6-2

Removing and installing the panel ..................6-4

Checking the spark plug ..................................6-5

Final transmission oil .......................................6-7

Cleaning the air filter sponge material .............6-8

Adjusting the carburetor ..................................6-9

TABLE OF CONTENTS

Adjusting the throttle cable free play .............6-10

Tires ..............................................................6-10

Adjusting the front and rear brake lever

free play .....................................................6-12

Checking the front and rear brake shoes ......6-13

Checking and lubricating the throttle grip

and cable ....................................................6-13

Adjusting the Autolube pump ........................6-14

Lubricating the front and rear brake levers ....6-14

Battery ...........................................................6-14

Replacing the fuse ........................................6-16

Troubleshooting .............................................6-17

Troubleshooting chart ....................................6-18

SCOOTER CARE AND STORAGE ...................7-1

7

Care .................................................................7-1

Storage ............................................................7-4

SPECIFICATIONS .............................................8-1

8

Specifications ..................................................8-1

CONSUMER INFORMATION ............................9-1

9

Identification numbers .....................................9-1

Key identification number ................................9-1

Vehicle identification number ..........................9-1

Model label ......................................................9-2

Reporting safety defects ..................................9-3

Scooter noise regulation ..................................9-4

Riva limited warranty .......................................9-6

Yamaha extended service (Y.E.S.) .................9-8

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SAFETY INFORMATION

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:

1. OBTAIN THOROUGH INSTRUCTIONS FROM A COMPETENT SOURCE ON ALL ASPECTS
OF SCOOTER OPERATION.

2. OBSERVE THE WARNINGS AND MAINTENANCE REQUIREMENTS IN THE OWNER’S MAN­UAL.

3. OBTAIN QUALIFIED TRAINING IN SAFE AND PROPER RIDING TECHNIQUES.

4. OBTAIN PROFESSIONAL TECHNICAL SERVICE AS INDICATED BY THE OWNER’S MANUAL
AND/OR WHEN MADE NECESSARY BY MECHANICAL CONDITIONS.

Safe riding

1. Always make pre-operation checks. Careful checks may help prevent an accident.

2. This scooter is designed to carry the operator only. No passengers.

3. 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.

1

Therefore:

a. Wear a brightly colored jacket.
b. Use extra caution when approaching and passing through intersections, since intersections

are the most likely places for scooter accidents to occur.

c. Ride where other motorists can see you. Avoid riding in another motorist’s blind spot.

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SAFETY INFORMATION

4. Many accidents involve inexperienced operators. In fact, many operators who have been
involved in accidents do not even have a current driver’s license.

1

a. Make sure that you are qualified and that you only lend your scooter to other qualified opera-

tors.
b. Know your skills and limits. Staying within your limits may help you to avoid an accident.
c. 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.

5. 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 EXCESSIVE SPEED or undercornering (insufficient
lean angle for the speed).
a. Always obey the speed limit and never travel faster than warranted by road and traffic condi-

tions.

b. Always signal before turning or changing lanes. Make sure that other motorists can see you.

6. The posture of the operator is important for proper control. The operator should keep both hands
on the handlebar and both feet on the footboard during operation to maintain control of the scoot­er.

7. Never ride under the influence of alcohol or other drugs.

8. 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.

1. Always wear an approved helmet.

2. Wear a face shield or goggles. Wind in your unprotected eyes could contribute to an impairment
of vision that could delay seeing a hazard.

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SAFETY INFORMATION

3. The use of a jacket, substantial shoes, trousers, gloves, etc., is effective in preventing or reducing
abrasions or lacerations.

4. Never wear loose-fitting clothes, otherwise they could catch on the control levers or wheels and
cause injury or an accident.

5. Never touch the engine or exhaust system during or after operation. They become very hot and
can cause burns. Always wear protective clothing that covers your legs, ankles, and feet.

Modifications

Modifications made to this scooter not approved by Yamaha, or the removal of original equipment,
may render the scooter unsafe for use and may cause severe personal injury. Modifications may also
make your scooter illegal to use.

Loading and accessories

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 are some general guidelines to follow if loading cargo or adding
accessories to your scooter:

Loading

The total weight of the operator, accessories and cargo must not exceed the maximum load limit of
75 kg (165 lb). When loading within this weight limit, keep the following in mind:

1. Cargo and accessory weight should be kept as low and close to the scooter as possible. Make
sure to distribute the weight as evenly as possible on both sides of the scooter to minimize imbal­ance or instability.

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1-3

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SAFETY INFORMATION

2. 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 fre-

1

quently.

3. 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.

Accessories

Genuine Yamaha accessories have been specifically designed for use on this scooter. Since Yamaha
cannot test all other accessories that may be available, you must personally be responsible for the
proper selection, installation and use of non-Yamaha accessories. Use extreme caution when select­ing and installing any accessories.
Keep the following guidelines in mind, as well as those provided under “Loading” when mounting
accessories.

1. 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.
a. 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.

b. 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.

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SAFETY INFORMATION

c. 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.

2. 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.

Gasoline and exhaust gas

1. GASOLINE IS HIGHLY FLAMMABLE:
a. Always turn the engine off when refueling.
b. Take care not to spill any gasoline on the engine or exhaust system when refueling.
c. Never refuel while smoking or in the vicinity of an open flame.

2. Never start the engine or let it run for any length of time in a closed area. The exhaust fumes are
poisonous and may cause loss of consciousness and death within a short time. Always operate
your scooter in an area that has adequate ventilation.

3. Always turn the engine off before leaving the scooter unattended and remove the key from the
main switch. When parking the scooter, note the following:
a. The engine and exhaust system may be hot, therefore, park the scooter in a place where

pedestrians or children are not likely to touch these hot areas.
b. Do not park the scooter on a slope or soft ground, otherwise it may fall over.
c. Do not park the scooter near a flammable source (e.g., a kerosene heater, or near an open

flame), otherwise it could catch fire.

4. If you should swallow any gasoline, inhale a lot of gasoline vapor, or allow gasoline to get in your
eyes, see your doctor immediately. If any gasoline spills on your skin or clothing, immediately
wash the affected area with soap and water and change your clothes.

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SAFETY INFORMATION

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Further safe-riding points

1. Make sure to signal clearly when making turns.

1

2. 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.

3. Slow down as you approach a corner or turn. Once you have completed a turn, accelerate slowly.

4. Be careful when passing parked cars. A driver might not see you and open a door in your path.

5. 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.

6. The brake lining could get wet when you wash the scooter. After washing the scooter, check the
brakes before riding.

7. Always wear a helmet, gloves, trousers (tapered around the cuff and ankle so they do not flap),
and a bright colored jacket.

8. 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 in the “Loading and accessories” section
for instructions on carrying a load.)

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1

2

3

4

5

Location of important labels

Please read the following important labels carefully before operating this scooter.

SAFETY INFORMATION

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1-7

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WARNING

BEFORE YOU OPERATE THIS VEHICLE, READ
THE OWNER’S MANUAL AND ALL LABELS.

ALWAYS WEAR AN APPROVED MOTORCYCLE
HELMET, eye protection, and protective clothing.

NEVER CARRY A PASSENGER. you increase your

risk of losing control if you carry a passenger.

3SL-2118K-A0

3LD-24877-A0

LOAD LIMIT

5 kg {11 lbs}

q

WARNING

Improper loading can cause loss of control.
Read owner’s manual for proper loading.

3JJ-28446-A0

q

WARNING

NEVER sit on carrier.

3 k g

{ }

CARRIER LOAD LIMIT.

7 lbs

5LY-24875-00

TIRE INFORMATION

follows.
FRONT :

:REAR

5LY-21668-A0

Cold tire normal pressure should be set as

150 kPa,{1.50 kgf/cm2}, 22 psi
175 kPa,{1.75 kgf/cm2}, 25 psi

SAFETY INFORMATION

1

1

2

3

4

5

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SAFETY INFORMATION

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1-9

DESCRIPTION

12 3 4

56

78

Left view

2

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1. Front wheel

2. Front fender

3. Front turn signal light

4. Rear turn signal light

5. Rear wheel

6. Kickstarter (page 3-9)

7. Air filter element (page 6-8)

8. Battery (page 6-14)

2-1

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16

15

11

14

Right view

DESCRIPTION

2

9. Tail/brake light

10. Carrier (page 3-11)

11. 2-stroke engine oil tank cap cover (page 3-8)

12. Seat (page 3-9)

13. Headlight

14. Spark plug (page 6-5)

15. Centerstand

16. Muffler

2-2

DESCRIPTION

1

2

3

4

56

7

8

Controls and instruments

2

1. Rear brake lever (page 3-5)

2. Left handlebar switches (page 3-4)

3. Fuel gauge (page 3-4)

4. Speedometer unit (page 3-3)

5. Main switch/steering lock (page 3-1)

6. Right handlebar switches (page 3-4)

7. Front brake lever (page 3-5)

8. Throttle grip (page 5-3, 6-10)

2-3

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ON

LOCK

OFF

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.

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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.

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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.

3

NOTE:

The headlight comes on as soon as
the engine is started.

3-1

INSTRUMENT AND CONTROL FUNCTIONS

OFF(PUSH)

LOCK

123

1

2

3

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.

To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.

1. Push.

2. Turn.

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Never turn the key to “OFF” or
“LOCK” while the scooter is mov-

ing, 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 “OFF” or “LOCK”.

3-2

1. 2-stroke engine oil level warning light

“7”

2. Turn signal indicator light “5”

3. High beam indicator light “&”

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Indicator and warning lights

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2-stroke engine oil level warning
light “7”

The warning light comes on when 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.

INSTRUMENT AND CONTROL FUNCTIONS

1

2

3

4

NOTE:

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.

cC

Do not operate the scooter until
you know that the 2-stroke engine
oil level is sufficient.

ECA00125

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Turn signal indicator light “5”

This 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.

3

1. Tripmeter reset knob

2. Speedometer

3. Odometer

4. Tripmeter

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Speedometer unit

The speedometer unit is equipped
with a speedometer, an odometer
and a tripmeter. The speedometer
shows riding speed. The odometer
shows the total distance traveled.
The tripmeter shows the distance
traveled since it was last set to zero
with the reset knob. The tripmeter
can be used to estimate the distance
that can be traveled with a full tank of
fuel. This information will enable you
to plan future fuel stops.

3-3

INSTRUMENT AND CONTROL FUNCTIONS

F

E

1

5

4

1

2
3

3

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 “E”, refuel as soon as
possible.

NOTE:

Do not allow the fuel tank to empty
itself completely.

1. Dimmer switch “&/%”

2. Turn signal switch “4/6”

3. Horn switch “*”

4. Engine stop switch “$/#”

5. Start switch “,”

Handlebar switches

Dimmer switch “&/%”

Set this switch to “&” for the high
beam and to “%” for the low beam.

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Turn signal switch “4/6”

To signal a right-hand turn, push this
switch to “6”. To signal a left-hand
turn, push this switch to “4”. 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 “*”

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 scooter
overturns or when the throttle cable is
stuck.

3-4

INSTRUMENT AND CONTROL FUNCTIONS

1

1

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Start switch “,”

Push this switch to crank the engine
with the starter.

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See page 5-1 for starting instruc­tions prior to starting the engine.

FRONT

1. Front brake lever

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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

3

1. Rear brake lever

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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.

3-5

INSTRUMENT AND CONTROL FUNCTIONS

a

1

1

3

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Make sure that the fuel tank cap is
properly installed before riding.

1. Fuel tank cap lock cover
a. Unlock.

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Fuel tank cap

To remove the fuel tank cap

Slide the lock cover open, insert the
key into the lock, and then turn it 1/4
turn clockwise. The lock will be
released and the fuel tank cap can be
removed.

1. Match marks

To install the fuel tank cap

1. Insert the fuel tank cap into the
tank opening with the key insert­ed in the lock and with the marks
on the cap and tank aligned.

2. Turn the key counterclockwise to
the original position, remove it,
and then close the lock cover.

NOTE:

The fuel tank cap cannot be installed
unless the key is in the lock. In addi­tion, the key cannot be removed if the
cap is not properly installed and
locked.

3-6

1

2

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.

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8 Do not overfill the fuel tank,

otherwise it may overflow
when the fuel warms up and
expands.

8 Avoid spilling fuel on the hot

engine.

INSTRUMENT AND CONTROL FUNCTIONS

cC

Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted sur­faces or plastic parts.

Recommended fuel:

UNLEADED GASOLINE ONLY

Fuel tank capacity:

Total amount:

6 L
(1.32 Imp gal, 1.59 US gal)

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3

3-7

INSTRUMENT AND CONTROL FUNCTIONS

2

a

b

1

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

3

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%. Gasohol containing methanol is
not recommended by Yamaha
because it can cause damage to the
fuel system or vehicle performance
problems.

EAU03969

2-stroke engine oil

Make sure that there is sufficient oil in
the 2-stroke engine oil tank. If neces­sary, add the recommended 2-stroke
engine oil as follows.

1. 2-stroke engine oil tank cap

2. 2-stroke engine oil tank cap cover
a. Unlock.
b. Lock.

1. Remove the 2-stroke engine oil
tank cap cover as shown.

2. Remove the 2-stroke engine oil
tank cap and add the recom­mended oil.

3. Install the 2-stroke engine oil
tank cap and tank cap cover.

NOTE:

Make sure that the 2-stroke engine
oil tank cap is properly installed.

3-8

a

1

Recommended oil:

See page 8-1.

Oil quantity:

1.4 L (1.23 Imp qt, 1.48 US qt)

INSTRUMENT AND CONTROL FUNCTIONS

3

1. Kickstarter

EAU00214

Kickstarter

a. Open.

EAU02978

Seat

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.

To open the seat

1. Insert the key in the lock, and
then turn it as shown.

2. Fold the seat up.

To close the seat

1. Fold the seat down, and then
push it down to lock it in place.

2. Remove the key.

NOTE:

Make sure that the seat is properly
secured before riding.

3-9

INSTRUMENT AND CONTROL FUNCTIONS

1

1

w

Never ride with a helmet attached
to the helmet holder, since the hel­met may hit objects, causing loss
of control and possibly an acci­dent.

3

1. Helmet holder

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Helmet holder

The helmet holder is located under
the seat.

To secure a helmet to the helmet
holder

1. Open the seat. (See page 3-9 for
opening procedures.)

2. Attach the helmet to the helmet
holder, and then securely close
the seat.

To release the helmet from the hel­met holder

Open the seat, remove the helmet
from the helmet holder, and then
close the seat.

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1. Storage compartment

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Storage compartment

There is a storage compartment
under the seat. (See page 3-9 for
seat opening and closing proce­dures.)

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8 Do not exceed the load limit of

5 kg (11 lb) for the storage
compartment.

8 Do not exceed the maximum

load of 75 kg (165 lb) for the
vehicle.

3-10

INSTRUMENT AND CONTROL FUNCTIONS

1

EC000010

cC

Keep the following points in mind
when using the storage compart­ment.

8 Since the storage compart-

ment accumulates heat when
exposed to the sun, do not
store anything susceptible to
heat inside it.

8 To avoid humidity from

spreading through the storage
compartment, wrap wet arti­cles in a plastic bag before
storing them in the compart­ment.

8 Since the storage compart-

ment may get wet while the
scooter is being washed, wrap
any articles stored in the com­partment in a plastic bag.

8 Do not keep anything valuable

or breakable in the storage
compartment.

To store a helmet in the storage com­partment, place the helmet upside­down with the front facing forward.

NOTE:

8 Some helmets cannot be stored

in the storage compartment
because of their size or shape.

8 Do not leave your scooter unat-

tended with the seat open.

3

1. Carrier

EAU00320

Carrier

EW000032

w

8 Do not exceed the load limit of

3 kg (7 lb) for the carrier.

8 Do not exceed the maximum

load of 75 kg (165 lb) for the
vehicle.

3-11

PRE-OPERATION CHECKS

ITEM CHECKS PAGE

Fuel

• Check fuel level in fuel tank.

• Refuel if necessary.

• Check fuel line for leakage.

3-6–3-8

2-stroke engine oil

• Check oil level in oil tank.

• If necessary, add recommended oil to specified level.

• Check vehicle for oil leakage.

3-8–3-9

Final transmission oil • Check vehicle for oil leakage. 6-7

Front brake

• Check operation.

• Lubricate cable if necessary.

• Check lever free play.

• Adjust if necessary.

3-5, 6-12–6-13, 6-14

Rear brake

• Check operation.

• Lubricate cable if necessary.

• Check lever free play.

• Adjust if necessary.

3-5, 6-12–6-13, 6-14

Throttle grip

• 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.

6-10, 6-13

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.

Pre-operation check list

4

EAU01114

EAU03439

4-1

PRE-OPERATION CHECKS

Wheels and tires

• Check for damage.

• Check tire condition and tread depth.

• Check air pressure.

• Correct if necessary.

6-10–6-12

Brake levers

• Make sure that operation is smooth.

• Lubricate lever pivoting points if necessary.

3-5, 6-12–6-13, 6-14

Centerstand

• Make sure that operation is smooth.

• Lubricate pivot if necessary.

—

Chassis fasteners

• Make sure that all nuts, bolts and screws are properly tightened.

• Tighten if necessary.

—

Instruments, lights, signals
and switches

• Check operation.

• Correct if necessary.

3-1–3-5

ITEM CHECKS PAGE

NOTE:

Pre-operation checks should be made each time the scooter 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.

w

If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operat­ing the scooter.

4-2

4

EWA00033

OPERATION AND IMPORTANT RIDING POINTS

ON

LOCK

OFF

EAU00372

w

8 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.

8 Never start the engine or oper-

ate it in a closed area for any

5

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.

8 For safety, always start the

engine with the centerstand
down.

EAU01118

EAU00376

cC

8 Make sure not to store person-

al items near the air cleaner
intake, otherwise air intake will
be blocked and performance
will suffer.

8 Make sure not to put anything

near the battery and its termi­nals, otherwise electrical fail­ure and acid corrosion may
result.

EAU04472

Starting and warming up a
cold engine

EC000046

cC

See page 5-4 for engine break-in
instructions prior to operating the
vehicle for the first time.

1. Set the engine stop switch to

“#”.

2. Turn the key to “*”, and when
the 2-stroke engine oil level
warning light comes on, turn the
key to “ON”.

5-1

2

1

1. Start switch “,”

2. Kickstarter

ECA00126

cC

If the 2-stroke engine oil level
warning light does not come on,
have a Yamaha dealer check the
electrical circuit.

3. Close the throttle completely.

4. Start the engine by pushing the
start switch or by pushing the
kickstarter lever down, while
applying the front or rear brake.

OPERATION AND IMPORTANT RIDING POINTS

NOTE:

If the engine fails to start by pushing
the start switch, release the 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.

ECA00055

cC

For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when
the engine is cold!

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 carrier with your right hand,
push the scooter off the center­stand.

2. Sit astride the seat, and then
adjust the rear view mirrors.

3. Switch the turn signal on.

EAU04473

5

5-2

OPERATION AND IMPORTANT RIDING POINTS

a

a

b

b

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.

5

EAU00434

Acceleration and
deceleration

The speed can be adjusted by open­ing and closing the throttle. To
increase the speed, turn the throttle
grip in direction a. To reduce the
speed, turn the throttle grip in direc­tion b.

FRONT

EAU00435

Braking

1. Close the throttle completely.

2. Apply both front and rear brakes
simultaneously while gradually
increasing the pressure.

EW000057

w

8 Avoid braking hard or sudden-

ly (especially when leaning
over to one side), otherwise
the scooter may skid or over­turn.

5-3

OPERATION AND IMPORTANT RIDING POINTS

REAR

8 Railroad crossings, streetcar

rails, iron plates on road con­struction sites, and manhole
covers become extremely slip­pery when wet. Therefore,
slow down when approaching
such areas and cross them
with caution.

8 Keep in mind that braking on a

wet road is much more diffi­cult.

8 Ride slowly down a hill, as

braking downhill can be very
difficult.

EAU00436

Engine break-in

There is never a more important peri­od in the life of your engine than the
period between 0 and 1,000 km
(600 mi). For this reason, you should
read the following material carefully.
Since the engine is brand new, do
not put an excessive load on it for the
first 1,000 km (600 mi). The various
parts in the engine wear and polish
themselves to the correct operating
clearances. During this period, pro­longed full-throttle operation or any
condition that might result in engine
overheating must be avoided.

EAU04839

0–150 km (0–90 mi)

8 Avoid prolonged operation above

1/3 throttle.

8 After every hour of operation,

stop the engine, and then let it
cool for five to ten minutes.

8 Vary the engine speed from time

to time. Do not operate the
engine at one set throttle posi­tion.

150–500 km (90–300 mi)

Avoid prolonged operation above 1/2
throttle.

ECA00117

cC

After 500 km (300 mi) of operation,
be sure to replace the final trans­mission oil.

500–1,000 km (300–600 mi)

Avoid prolonged operation above 3/4
throttle.

5

5-4

OPERATION AND IMPORTANT RIDING POINTS

1,000 km (600 mi) and beyond

Avoid prolonged full-throttle opera­tion. Vary the engine speed occa­sionally.

EC000049

cC

If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.

5

Incorrect.

Parking

When parking, stop the engine, and
then remove the key from the main
switch.

EAU00461

Incorrect.

EW000058

w

8 Since the engine and exhaust

system can become very hot,
park in a place where pedestri­ans or children are not likely
to touch them.

8 Do not park on a slope or on

soft ground, otherwise the
scooter may overturn.

5-5

EC000062

cC

Never park in an area where there
are fire hazards such as grass or
other flammable materials.

EAU00462

PERIODIC MAINTENANCE AND MINOR REPAIR

EAU03453

Safety is an obligation of the owner.
Periodic inspection, adjustment and
lubrication will keep your vehicle in
the safest and most efficient condi­tion possible. The most important
points of scooter inspection, adjust­ment, and lubrication are explained
on the following pages.

EW000060

w

If you are not familiar with scooter
maintenance work, have a Yamaha
dealer do it for you.

EAU00466

w

This scooter is designed for use
on paved roads only. If this scoot­er is operated in abnormally dusty,
muddy or wet conditions, the air
filter element should be cleaned or
replaced more frequently, other­wise rapid engine wear may result.
Consult a Yamaha dealer for prop­er maintenance intervals.

6

6-1

PERIODIC MAINTENANCE AND MINOR REPAIR

NO. ITEM ROUTINE

INITIAL

300 mi

(500 km)

EVERY

2,000 mi

(3,000 km) or

6 months

4,000 mi

(6,000 km) or

12 months

1 Spark plug

• Check condition.

• Clean or replace if necessary.

√√ √

2 Air filter element

• Clean.

• Replace if necessary.

√√

3

*

Carburetor

• Check idle speed.

• Adjust if necessary.

√√

4*Fuel line

• Check fuel hose and vacuum pipe for cracks or damage.

• Replace if necessary.

√√

5*Final transmission oil

• Check oil leakage.

• Correct if necessary.

• Replace every 8,000 mi (12,000 km) or 24 months.

(Ride scooter a few minutes before draining.)

REPLACE. √√

6*Autolube pump

• Check operation.

• Correct if necessary.

• Bleed.

√√

7 Brakes

• Check operation.

• Adjust if necessary.

√√

8*Wheels

• Check damage/runout.

• Replace if necessary.

√√

9*Wheel bearings

• Check bearing assembly for looseness/damage.

• Replace if damaged.

√√

10*Steering bearings

• Check bearing assembly for looseness.

• Correct if necessary.

• Moderately repack every 8,000 mi (12,000 km) or 24 months.**

√√√

11*Rear shock absorber

• Check operation/oil leakage.

• Replace if necessary.

√√

Periodic maintenance and lubrication chart

EAU00473

6

6-2

PERIODIC MAINTENANCE AND MINOR REPAIR

12*V-belt

• Check damage and wear.

• Replace if necessary.

• Replace every 6,000 mi (9,000 km).

√

13*Chassis fasteners

• Check all chassis fittings and fasteners.

• Correct if necessary.

√√ √

14*Control and meter cables • Apply chain lube thoroughly. √√ √

15

*

Throttle grip housing and
cable

• Check operation and freeplay.

• Adjust the throttle cable free play if necessary.

• Lubricate the throttle grip housing and cable.

√√

16

*

Centerstand

• Check operation.

• Repair if necessary.

√√ √

NO. ITEM ROUTINE

INITIAL

300 mi

(500 km)

EVERY

2,000 mi

(3,000 km) or

6 months

4,000 mi

(6,000 km) or

12 months

*Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service.
**Lithium-soap-based grease

EAU04316

NOTE:

From 6,000 mi (9,000 km) or 18 months, repeat the maintenance intervals starting from 2,000 mi (3,000 km) or
6 months.

NOTE:

The air filter needs more frequent service if you are riding in unusually wet or dusty areas.

6-3

EAU00479

6

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

1

1

1. Panel A

Removing and installing the
panel

The panel shown above needs to be

6

removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each
time the panel needs to be removed
and installed.

EAU01777

1. Screw (×2)

EAU04475

Panel A

To remove the panel

1. Open the seat. (See page 3-9 for
seat opening and closing proce­dures.)

6-4

1. Panel A

2. Screw

2. Remove the screw, and then pull
the panel off as shown.

To install the panel
Place the panel in the original posi­tion, and then install the screw.

EAU03972

1

1

Checking the spark plug

The spark plug is an important
engine component, which is easy to
check. Since heat and deposits will
cause any spark plug to slowly erode,
the spark plug should be removed
and checked in accordance with the
periodic maintenance and lubrication
chart. In addition, the condition of the
spark plug can reveal the condition of
the engine.

PERIODIC MAINTENANCE AND MINOR REPAIR

1. Spark plug cap

To remove the spark plug

1. Remove the spark plug cap.

1. Spark plug wrench

2. Remove the spark plug as
shown, with a spark plug wrench
available at a Yamaha dealer.

6

6-5

PERIODIC MAINTENANCE AND MINOR REPAIR

a

To check the spark plug

1. Check that the porcelain insula­tor around the center electrode
of the spark plug is a medium-to­light tan (the ideal color when the
scooter is ridden normally).

NOTE:

If the spark plug shows a distinctly
different color, the engine could be
defective. Do not attempt to diagnose
such problems yourself. Instead,
have a Yamaha dealer check the
scooter.

6

2. Check the spark plug for elec­trode erosion and excessive car­bon or other deposits, and
replace it if necessary.

Specified spark plug:

BPR7HS (NGK)

a. Spark plug gap

To install the spark plug

1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.

Spark plug gap:

0.6–0.7 mm (0.024–0.028 in)

2. Clean the surface of the spark
plug gasket and its mating sur­face, and then wipe off any grime
from the spark plug threads.

3. Install the spark plug with the
spark plug wrench, and then
tighten it to the specified torque.

Tightening torque:

Spark plug:

20 Nm (2.0 m·kgf, 14 ft·lbf)

NOTE:

If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is
1/4–1/2 turn past finger tight.
However, the spark plug should be
tightened to the specified torque as
soon as possible.

4. Install the spark plug cap.

6-6

PERIODIC MAINTENANCE AND MINOR REPAIR

2

1

1. Final transmission oil filler bolt

2. Final transmission drain bolt

EAU04228

Final transmission oil

The final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair the
scooter. In addition, the final trans­mission oil must be changed as fol­lows at the intervals specified in the
periodic maintenance and lubrication
chart.

1. Start the engine, warm it up by
riding the scooter for several
minutes, and then stop the
engine.

2. Place the scooter on the center­stand.

3. Place an oil pan under the final
transmission case to collect the
used oil.

4. Remove the oil filler cap and
drain bolt to drain the oil from the
final transmission case.

5. Install the final transmission oil
drain bolt, and then tighten it to
the specified torque.

Tightening torque:

Final transmission oil drain bolt:

18 Nm (1.8 m·kgf, 13 ft·lbf)

6. Add the specified amount of the
recommended final transmission
oil, and then install and tighten
the oil filler cap.

Recommended final transmission
oil:

See page 8-1.

Oil quantity:

0.11 L (0.1 Imp qt, 0.12 US qt)

EWA00062

w

8 Make sure that no foreign

material enters the final trans­mission case.

8 Make sure that no oil gets on

the tire or wheel.

7. Check the final transmission
case for oil leakage. If oil is leak­ing, check for the cause.

6

6-7

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

1

1

2

1. Air filter case cover

2. Screw (×3)

Cleaning the air filter sponge
material

The air filter sponge material should

6

be cleaned at the intervals specified
in the periodic maintenance and lubri­cation chart. Clean the air filter
sponge material more frequently if
you are riding in unusually wet or
dusty areas.

1. Remove panel A. (See page 6-4
for panel removal and installation
procedures.)

EAU04349

1. Clamp

2. Carburetor intake

2. Remove the air filter case cover
by removing the screws, then
pulling the cover off while
squeezing the clamp.

ECA00086

cC

Make sure that no foreign material
enters the carburetor intake.

6-8

1. Air filter sponge material

3. Pull the air filter sponge material
out, clean it with solvent, and
then squeeze the remaining sol­vent out.

EW000075

w

Use only a dedicated parts clean­ing solvent. To avoid the risk of
fire or explosion, do not use gaso­line or solvents with a low flash
point.

PERIODIC MAINTENANCE AND MINOR REPAIR

12

43

cC

To avoid damaging the air filter
sponge material, handle it gently
and carefully, and do not twist it.

4. Apply oil of the recommended
type to the entire surface of the
air filter sponge material, and
then squeeze the excess oil out.

NOTE:

The air filter sponge material should
be wet but not dripping.

ECA00111

Recommended oil:

YAMALUBE 2 or equivalent
2-stroke engine oil

5. Insert the air filter sponge materi­al into the air filter case.

ECA00112

cC

8 Make sure that the air filter

sponge material is properly
seated in the air filter case.

8 The engine should never be

operated without the air filter
sponge material installed, oth­erwise the piston and/or cylin­der may become excessively
worn.

6. Install the air filter case cover by
placing it in the original position,
fastening it with the clamp, then
installing the screws.

7. Install the panel.

EAU00631

Adjusting the carburetor

The carburetor is an important part of
the engine and requires very sophisti­cated adjustment. Therefore, all car­buretor adjustments should be left to
a Yamaha dealer, who has the nec­essary professional knowledge and
experience.

6

6-9

PERIODIC MAINTENANCE AND MINOR REPAIR

a

a. Throttle cable free play

EAU00635

Adjusting the throttle cable
free play

The throttle cable free play should

6

measure 1.5–3.5 mm (0.06–0.14 in)
at the throttle grip. Periodically check
the throttle cable free play and, if
necessary, have a Yamaha dealer
adjust it.

Tires

To maximize the performance, dura­bility, and safe operation of your
scooter, note the following points
regarding the specified tires.

EAU04837

Tire air pressure

The tire air pressure should be
checked and, if necessary, adjusted
before each ride.

EW000089

w

Because loading has an enormous
impact on the handling, braking,
performance and safety character­istics of your scooter, you should
keep the following precautions in
mind.

6-10

8 NEVER OVERLOAD THE

a

1

2

Tire air pressure

(measured on cold tires)

Front Rear

150 kPa

(1.50 kgf/cm2,

22 psi)

175 kPa

(1.75 kgf/cm2,

25 psi)

Minimum tire tread depth
(front and rear)

1.0 mm (0.04 in)

SCOOTER! Operation of an
overloaded scooter may result
in tire damage, loss of control,
or severe injury. Make sure
that the total weight of rider,
cargo, and accessories does
not exceed the specified maxi­mum load for the vehicle.

8 Improper tire air pressure

greatly affects tire life and
handling.

8 If the tire air pressure is too

high, shocks from the road will
not be dampened but instead
be transmitted to the frame

PERIODIC MAINTENANCE AND MINOR REPAIR

and handlebars, which impairs
riding comfort. In addition, the
scooter will be unstable in
curves.

8 If the tire air pressure is too

low, the tires will be damaged
and the tire life shortened. In
addition, the tires could slip
off the wheel rims during brak­ing, which could result in tube
damage. The scooter could
also easily turn over in a
curve.

6-11

1. Sidewall

2. Tire wear indicator
a. Tire tread depth

Tire inspection

Always check the tires before operat­ing the scooter. If a tire tread shows
crosswise lines (minimum tread
depth), if the tire has a nail or glass
fragments in it, or if the sidewall is
cracked, contact a Yamaha dealer
immediately and have the tire
replaced.

6

PERIODIC MAINTENANCE AND MINOR REPAIR

FRONT

Manufacturer Size Model

IRC 80/90-10 34J MB38

CHENG-SHIN 80/90-10 34J C-922

REAR

Manufacturer Size Model

IRC 80/90-10 34J MB38

CHENG SHIN 80/90-10 34J C-922

a

a

Tire information

This scooter is equipped with panel
wheels and tubeless tires.

6

EAU00682

w

8 It is dangerous to ride with a

worn-out tire. When a tire
tread begins to show cross­wise lines, have a Yamaha
dealer replace the tire immedi­ately.

8 The replacement of all wheel-

and brake-related parts,
including the tires, should be
left to a Yamaha dealer, who
has the necessary profession­al knowledge and experience.

6-12

Front Rear

a. Brake lever free play

EAU00702

Adjusting the front and rear
brake lever free play

The front and rear brake lever free
play should measure 10–20 mm
(0.4–0.8 in) as shown. Periodically
check the front and rear brake lever
free play and, if necessary, adjust
them as follows.

PERIODIC MAINTENANCE AND MINOR REPAIR

2

1

1

2

b

a

a

b

1

1

Front Rear

1. Brake lever free play adjusting nut

To increase the brake lever free play,
turn the adjusting nut at the brake
shoe plate in direction a. To
decrease the brake lever free play,
turn the adjusting nut in direction b.

EW000101

w

If proper adjustment cannot be
obtained as described, have a
Yamaha dealer make this adjust­ment.

1. Brake shoe wear indicator

2. Wear limit line

EAU00719

Checking the front and rear
brake shoes

The front and rear brake shoes must
be checked for wear at the intervals
specified in the periodic maintenance
and lubrication chart. Each brake is
provided with a wear indicator, which
allows you to check the brake shoe
wear without having to disassemble
the brake. To check the brake shoe
wear, check the position of the wear
indicator while applying the brake. If
a brake shoe has worn to the point
that the wear indicator reaches the
wear limit line, have a Yamaha dealer
replace the brake shoes as a set.

6-13

EAU04034

Checking and lubricating the
throttle grip and cable

The operation of the throttle grip
should be checked before each ride.
In addition, the cable should be lubri­cated or replaced at the intervals
specified in the periodic maintenance
chart.

6

PERIODIC MAINTENANCE AND MINOR REPAIR

Adjusting the Autolube
pump

The Autolube pump is a vital and
sophisticated component of the
engine, which must be adjusted by a
Yamaha dealer at the intervals speci­fied in the periodic maintenance and
lubrication chart.

6

EAU00774

EAU03118

Lubricating the front and
rear brake levers

The pivoting points of the front and
rear brake levers must be lubricated
at the intervals specified in the peri­odic maintenance and lubrication
chart.

Recommended lubricant:

Lithium-soap-based grease
(all-purpose grease)

EAU03989

Battery

This scooter is equipped with a
sealed-type (MF) battery, which does
not require any maintenance. There
is no need to check the electrolyte or
to add distilled water.

EW000116

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8 Electrolyte is poisonous and

dangerous since it contains
sulfuric acid, which causes
severe burns. Avoid any con­tact with skin, eyes or clothing
and always shield your eyes
when working near batteries.
In case of contact, administer
the following FIRST AID.

9 EXTERNAL: Flush with plen-

ty of water.

9 INTERNAL: Drink large quan-

tities of water or milk and
immediately call a physician.

9 EYES: Flush with water for

15 minutes and seek prompt
medical attention.

6-14

8 Batteries produce explosive

1

2

1

2

hydrogen gas. Therefore, keep
sparks, flames, cigarettes,
etc., away from the battery and
provide sufficient ventilation
when charging it in an
enclosed space.

8 KEEP THIS AND ALL BATTER-

IES OUT OF THE REACH OF
CHILDREN.

PERIODIC MAINTENANCE AND MINOR REPAIR

1. Battery box cover

2. Screw

To remove the battery

1. Remove panel A. (See page 6-4
for panel removal and installation
procedures.)

2. Remove the battery box cover by
removing the screw.

3. Pull the battery out from the bat­tery box, and then disconnect the
battery coupler.

1. Battery coupler

2. Battery

To install the battery

1. Connect the battery coupler, and
then place the battery in the orig­inal position.

2. Install the battery box cover by
installing the screw.

3. Install the panel.

6

6-15

PERIODIC MAINTENANCE AND MINOR REPAIR

1

To charge the battery

Have a Yamaha dealer charge the
battery as soon as possible if it
seems to have discharged. Keep in
mind that the battery tends to dis­charge more quickly if the scooter is
equipped with optional electrical
accessories.

To store the battery

1. If the scooter will not be used for
more than one month, remove
the battery, fully charge it, and

6

then place it in a cool, dry place.

2. If the battery will be stored for
more than two months, check it
at least once a month and fully
charge it if necessary.

3. Fully charge the battery before
installation.

EC000102

cC

8 Always keep the battery

charged. Storing a discharged
battery can cause permanent
battery damage.

8 To charge a sealed-type (MF)

battery, a special (constant­voltage) battery charger is
required. Using a conventional
battery charger will damage
the battery. If you do not have
access to a sealed-type (MF)
battery charger, have a
Yamaha dealer charge your
battery.

1. Fuse

EAU00824

Replacing the fuse

The fuse is located inside the battery
lead coupler.
If the fuse is blown, replace it as fol­lows.

1. Turn the key to “OFF” and turn
off all electrical circuits.

2. Remove the blown fuse, and
then install a new fuse of the
specified amperage.

Specified fuse: 7.5 A

6-16

PERIODIC MAINTENANCE AND MINOR REPAIR

EC000103

cC

Do not use a fuse of a higher
amperage rating than recommend­ed to avoid causing extensive
damage to the electrical system
and possibly a fire.

3. Turn the key to “ON” and turn on
the electrical circuits to check if
the devices operate.

4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.

EAU01008

Troubleshooting

Although Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition sys­tems, for example, can cause poor
starting and loss of power.
The following troubleshooting chart
represents a quick and easy proce­dure for checking these vital systems
yourself. However, should your scoot­er require any repair, take it to a
Yamaha dealer, whose skilled techni­cians have the necessary tools,
experience, and know-how to service
the scooter properly.
Use only genuine Yamaha replace­ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life
and can lead to expensive repair
bills.

6

6-17

PERIODIC MAINTENANCE AND MINOR REPAIR

Check the fuel level in
the fuel tank.

1. Fuel

There is enough fuel.

There is no fuel.

Check the compression.

Supply fuel.

The engine does not start.
Check the compression.

Operate the electric starter.

2. Compression

There is compression.

There is no compression.

Check the ignition.

Have a Yamaha dealer
check the vehicle.

Remove the spark plug
and check the electrodes.

3. Ignition

Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.

Have a Yamaha dealer check the vehicle.

The engine does not start.
Have a Yamaha dealer
check the vehicle.

The engine does not start.
Check the battery.

Operate the electric starter.

4. Battery

The engine turns over
quickly.

The engine turns over
slowly.

The battery is good.

Check the battery lead connections,
and charge the battery if necessary.

Dry

Wet

Open the throttle halfway and operate
the electric starter.

Troubleshooting chart

w

Keep away open flames and do not smoke while checking or working on the fuel system.

EAU01397

EW000125

6

6-18

EAU03434

SCOOTER CARE AND STORAGE

Care

While the open design of a scooter
reveals the attractiveness of the tech­nology, it also makes it more vulnera­ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go
unnoticed on a car, however, it
detracts from the overall appearance
of a scooter. Frequent and proper
care does not only comply with the
terms of the warranty, but it will also
keep your scooter looking good,
extend its life and optimize its perfor­mance.

Before cleaning

1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.

2. Make sure that all caps and cov­ers as well as all electrical cou­plers and connectors, including
the spark plug cap, are tightly
installed.

3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such
products onto seals, gaskets and
wheel axles. Always rinse the dirt
and degreaser off with water.

Cleaning

ECA00011

cC

8 Avoid using strong acidic

wheel cleaners, especially on
spoked wheels. If such prod­ucts are used on hard-to­remove dirt, do not leave the
cleaner on the affected area
any longer than instructed.
Also, thoroughly rinse the area
off with water, immediately dry
it, and then apply a corrosion
protection spray.

8 Improper cleaning can damage

windshields, cowlings, panels
and other plastic parts. Use
only a soft, clean cloth or
sponge with mild detergent
and water to clean plastic.

7

7-1

SCOOTER CARE AND STORAGE

8 Do not use any harsh chemical

products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abra­sive cleaning products, sol­vent or thinner, fuel (gasoline),
rust removers or inhibitors,
brake fluid, antifreeze or elec­trolyte.

8 Do not use high-pressure

washers or steam-jet cleaners
since they cause water seep­age and deterioration in the
following areas: seals (of

7

wheel and swingarm bearings,
fork and brakes), electric com­ponents (couplers, connec­tors, instruments, switches
and lights), breather hoses
and vents.

8 For scooters equipped with a

windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the wind­shield. Test the product on a
small hidden part of the wind­shield to make sure that it
does not leave any marks. If
the windshield is scratched,
use a quality plastic polishing
compound after washing.

After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottle­brush for hard-to-reach areas.
Stubborn dirt and insects will come
off more easily if the area is covered
with a wet cloth for a few minutes
before cleaning.

After riding in the rain, near the sea
or on salt-sprayed roads
Since sea salt or salt sprayed on the
roads during winter are extremely
corrosive in combination with water,
carry out the following steps after
each ride in the rain, near the sea or
on salt-sprayed roads.

NOTE:

Salt sprayed on roads in the winter
may remain well into spring.

1. Clean the scooter with cold water
and a mild detergent after the
engine has cooled down.

ECA00012

cC

Do not use warm water since it
increases the corrosive action of
the salt.

2. Apply a corrosion protection
spray on all metal, including
chrome- and nickel-plated, sur­faces to prevent corrosion.

7-2

SCOOTER CARE AND STORAGE

After cleaning

1. Dry the scooter with a chamois
or an absorbing cloth.

2. Use a chrome polish to shine
chrome, aluminum and stainless­steel parts, including the exhaust
system. (Even the thermally
induced discoloring of stainless­steel exhaust systems can be
removed through polishing.)

3. To prevent corrosion, it is recom­mended to apply a corrosion pro­tection spray on all metal, includ­ing chrome- and nickel-plated,
surfaces.

4. Use spray oil as a universal
cleaner to remove any remaining
dirt.

5. Touch up minor paint damage
caused by stones, etc.

6. Wax all painted surfaces.

7. Let the scooter dry completely
before storing or covering it.

EWA00002

w

8 Make sure that there is no oil

or wax on the brakes or tires.
If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild
detergent.

8 Before operating the scooter

test its braking performance
and cornering behavior.

ECA00013

cC

8 Apply spray oil and wax spar-

ingly and make sure to wipe
off any excess.

8 Never apply oil or wax to any

rubber and plastic parts, but
treat them with a suitable care
product.

8 Avoid using abrasive polish-

ing compounds as they will
wear away the paint.

NOTE:

Consult a Yamaha dealer for advice
on what products to use.

7

7-3

SCOOTER CARE AND STORAGE

Storage

Short-term

Always store your scooter in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.

cC

8 Storing the scooter in a poorly

ventilated room or covering it
with a tarp, while it is still wet,
will allow water and humidity
to seep in and cause rust.

8 To prevent corrosion, avoid

damp cellars, stables (because
of the presence of ammonia)

7

and areas where strong chemi­cals are stored.

ECA00015

Long-term

Before storing your scooter for sever­al months:

1. Follow all the instructions in the
“Care” section of this chapter.

2. Drain the carburetor float cham­ber by loosening the drain bolt;
this will prevent fuel deposits
from building up. Pour the
drained fuel into the fuel tank.

3. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.

4. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap

and spark plug.

b. Pour a teaspoonful of engine

oil into the spark plug bore.

c. Install the spark plug cap onto

the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes
are grounded. (This will limit
sparking during the next step.)

d. Turn the engine over several

times with the starter. (This
will coat the cylinder wall with
oil.)

e. Remove the spark plug cap

from the spark plug, and then
install the spark plug and the
spark plug cap.

EWA00003

w

To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turn­ing the engine over.

7-4

SCOOTER CARE AND STORAGE

5. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/centerstand.

6. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground.
Alternatively, turn the wheels a
little every month in order to pre­vent the tires from becoming
degraded in one spot.

7. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.

8. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a
month. Do not store the battery
in an excessively cold or warm
place [less than 0 °C (30 °F) or
more than 30 °C (90 °F)]. For
more information on storing the
battery, see page 6-16.

NOTE:

Make any necessary repairs before
storing the scooter.

7

7-5

SPECIFICATIONS

Specifications

EAU01038

Model YJ50R/YJ50RA

Dimensions

Overall length 1,630 mm (64.2 in)

Overall width 630 mm (24.8 in)

Overall height 1,030 mm (40.6 in)

Seat height 715 mm (28.1 in)

Wheelbase 1,150 mm (45.3 in)

Ground clearance 85 mm (3.3 in)

Minimum turning radius 1,600 mm (63.0 in)

Basic weight (with oil and full
fuel tank) 74 kg (163 lb)

Engine

Engine type Air cooled 2-stroke

Cylinder arrangement Forward inclined single cylinder

Displacement 49 cm

8

Bore × Stroke 40.0 × 39.2 mm (1.57 × 1.54 in)

Compression ratio 7.3:1

Starting system Electric and kick starter

Lubrication system Separate lubrication

3

(Yamaha Autolube)

Engine oil

Type YAMALUBE 2 or

2-stroke engine oil

Quantity

Total amount 1.4 L (1.23 Imp qt, 1.48 US qt)

Final transmission oil

Type Yamalube 4, SAE10W30SE or

GL gear oil

Quantity

Periodic oil change 0.1 L (0.09 Imp qt, 0.11 US qt)

Total amount 0.11 L (0.1 Imp qt, 0.12 US qt)

Air filter Wet type element

Fuel

Type UNLEADED GASOLINE ONLY

Fuel tank capacity 6 L (1.32 Imp gal, 1.59 US gal)

Carburetor

Manufacturer TEIKEI
Model × quantity Y14P × 1

Spark plug

Manufacturer/model NGK/BPR7HS

Gap 0.6–0.7 mm (0.024–0.028 in)

Clutch type Dry, centrifugal automatic

8-1

SPECIFICATIONS

Transmission

Primary reduction system Helical gear

Primary reduction ratio 3.692

Secondary reduction system Spur gear

Secondary reduction ratio 3.230

Transmission type V-belt automatic

Operation Centrifugal automatic type

Chassis

Frame type Steel tube underbone

Caster angle 25°

Trail 71 mm (2.8 in)

Tires

Front

Type Tubeless tire

Size 80/90-10 34J

Manufacturer/ IRC/MB38
model CHENG-SHIN/C-922

Rear

Type Tubeless tire

Size 80/90-10 34J

Manufacturer/ IRC/MB38
model CHENG-SHIN/C-922

Maximum load* 75 kg (165 lb)

Tire air pressure (measured on
cold tires)

Front

Rear

Wheels

Front

Type Panel wheel
Size 10 × 2.15

Rear

Type Panel wheel
Size 10 × 2.15

Brakes

Front

Type Drum brake

Operation Right hand

Rear

Type Drum brake

Operation Left hand

Suspension

Front Bottom link fork

Rear Unit swing

Spring/shock absorber

Front Coil spring/oil damper

Rear Coil spring/oil damper

150 kPa (1.50 kgf/cm2, 22 psi)

175 kPa (1.75 kgf/cm2, 25 psi)

8

8-2

SPECIFICATIONS

Wheel travel

Front 52 mm (2.05 in)

Rear 48 mm (1.89 in)

Electrical system

Ignition system DC. C.D.I.

Charging system

Type A.C. magneto

Standard output 14 V, 120 W @ 5,000 r/min

Battery

Model GT4B-5

Voltage, capacity 12 V, 2.5 Ah

Headlight type Halogen bulb

Bulb voltage, wattage × quantity

Headlight 12 V, 35/35 W × 1
Tail/brake light 12 V, 8/27 W × 1

8

Front turn signal light 12 V, 10 W × 2
Rear turn signal light 12 V, 10 W × 2
Meter lighting 12 V, 1.7 W × 1
Meter lighting (Fuel gauge) 14 V, 1.4 W × 1
High beam indicator light 12 V, 1.7 W × 1

2-stroke engine oil level
warning light 12 V, 1.7 W × 1

Turn signal indicator light 14 V, 3 W × 1

Fuse 7.5 A

8-3

EAU01039

1

1

EAU02944

Identification numbers

Record the key identification number,
vehicle identification number and
model label information in the spaces
provided below for assistance when
ordering spare parts from a Yamaha
dealer or for reference in case the
vehicle is stolen.

1. KEY IDENTIFICATION
NUMBER:

2. VEHICLE IDENTIFICATION
NUMBER:

3. MODEL LABEL INFORMATION:

1
6

CONSUMER INFORMATION

1. Key identification number

EAU01042

Key identification number

The key identification number is
stamped into the key.
Record this number in the space pro­vided and use it for reference when
ordering a new key.

1. Vehicle identification number

EAU01044

Vehicle identification number

The vehicle identification number is
stamped into the frame.

NOTE:

The vehicle identification number is
used to identify your scooter and may
be used to register your motorcycle
with the licensing authority in your
area.

9

9-1

CONSUMER INFORMATION

1

1. Model label

EAU04476

Model label

The model label is affixed to the
inside of the storage compartment.
(See page 3-10 for storage compart­ment opening and closing proce­dures.) Record the information on this
label in the space provided. This
information will be needed when
ordering spare parts from a Yamaha
dealer.

9

9-2

CONSUMER INFORMATION

EAU01051

Reporting safety defects

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should imme­diately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Yamaha Motor
Corporation, U.S.A. If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect
exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in
individual problems between you, your dealer, or Yamaha Motor Corporation, U.S.A.

To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-800-424-9393 (or 366-0123 in Washington,
D.C. area) or write to: NHTSA, U.S. Department of Transportation, Washington, D.C. 20590. You can also obtain other
information about motor vehicle safety from the Hotline.

9-3

9

CONSUMER INFORMATION

Exhaust system

Muffler
Exhaust pipe
Silencer

Intake system

Air cleaner case
Air cleaner element
Intake duct

EAU01055

Scooter noise regulation

TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing
thereof: (1) The removal or rendering inoperative by any person other than for purposes of maintenance, repair, or
replacement of any device or element of design incorporated into any new vehicle for the purpose of noise control prior
to its sale or delivery to the ultimate purchaser or while it is in use or (2) the use of the vehicle after such device or ele­ment of design has been removed or rendered inoperative by any person.

“AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE ACTS LISTED BELOW.”

These acts include tampering with the following systems; i.e., modification, removal, etc.

9

9-4

CONSUMER INFORMATION

9-5

9

CONSUMER INFORMATION

YAMAHA MOTOR CORPORATION, U.S.A.

RIVA LIMITED WARRANTY

EAU02919

9

9-6

CONSUMER INFORMATION

9-7

9

CONSUMER INFORMATION

YAMAHA EXTENDED SERVICE (Y.E.S.)

EAU01063

9

9-8

CONSUMER INFORMATION

9-9

9

PRINTED ON RECYCLED PAPER

YAMAHA MOTOR CO., LTD.

PRINTED IN JAPAN

2002·5–3.4×1(E)

!