Yamaha YJ50RAP Owner's Manual
OWNER’S MANUAL
YJ50RP
YJ50RAP
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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.
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IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY
IS INVOLVED!
Failure to follow WARNING instructions could result in severe injury or death to
the scooter operator, a bystander or a person inspecting or repairing the scooter.
A CAUTION indicates special precautions that must be taken to avoid damage
to the scooter.
A NOTE provides key information to make procedures easier or clearer.
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NOTE:
NOTE:
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.
YJ50RP/YJ50RAP
OWNER’S MANUAL
©2001 by Yamaha Motor Corporation, U.S.A.
1st edition, September 2001
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-11626-15-46
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AFFIX DEALER
LABEL HERE
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TABLE OF CONTENTS
SAFETY INFORMATION ................................. 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
Left view ........................................................ 2-1
Right view ...................................................... 2-2
Controls and instruments ............................... 2-3
INSTRUMENT AND CONTROL 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 ................................................ 3-9
Storage compartment .................................. 3-10
Carrier .......................................................... 3-11
PRE-OPERATION CHECKS ............................ 4-1
Pre-operation check list ................................. 4-1
OPERATION AND IMPORTANT RIDING
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
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
Adjusting the throttle cable free play ........... 6-10
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3
4
5
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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
Care ............................................................... 7-1
Storage .......................................................... 7-4
SPECIFICATIONS ............................................ 8-1
CONSUMER INFORMATION .......................... 9-1
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 ............................. 9-8
TABLE OF CONTENTS
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SAFETY INFORMATION
1
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.
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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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.
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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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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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 frequently.
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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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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Further safe-riding points
1. Make sure to signal clearly when making turns.
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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Location of important labels
Please read the following important labels carefully before operating this scooter.
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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}
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WARNING
Improper loading can cause loss of control.
Read owner’s manual for proper loading.
3JJ-28446-A0
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
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WARNING
NEVER sit on carrier.
3 k g
{ }
CARRIER LOAD LIMIT.
7 lbs
5LY-24875-00
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DESCRIPTION
2
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)
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Left 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
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16
15
11
14
Right view
DESCRIPTION
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 6-10)
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3
4
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Controls and instruments
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INSTRUMENT AND CONTROL FUNCTIONS
3
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Main switch/steering lock
The main switch/steering lock controls the ignition and lighting systems,
and is used to lock the steering. The
various positions are described
below.
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ON
All electrical circuits are supplied with
power, the taillight and meter lighting
come on, and the engine can be
started. The key cannot be removed.
NOTE:
The headlight comes on as soon as
the engine is started.
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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.
ON
LOCK
OFF
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.
INSTRUMENT AND CONTROL FUNCTIONS
3
OFF(PUSH)
LOCK
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Never turn the key to “OFF” or
“LOCK” while the scooter is moving, otherwise the electrical systems will be switched off, which
may result in loss of control or an
accident. Make sure that the scooter is stopped before turning the
key to “OFF” or “LOCK”.
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2
1. Push.
2. Turn.
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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.
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1. 2-stroke engine oil level warning light
“7”
2. Turn signal indicator light “5”
3. High beam indicator light “&”
INSTRUMENT AND CONTROL FUNCTIONS
3
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.
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Do not operate the scooter until
you know that the 2-stroke engine
oil level is sufficient.
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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.
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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.
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2
3
4
1. Tripmeter reset knob
2. Speedometer
3. Odometer
4. Tripmeter
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