Yamaha YQ50 2008, YQ50L 2008 Owner's manual

Read this manual carefully before operating this vehicle.
OWNER’S MANUAL
YQ50
YQ50L
3C6-F8199-E1

INTRODUCTION

EAU10113
Welcome to the Yamaha world of motorcycling! As the owner of the YQ50/YQ50L, you are benefiting from Yamaha’s vast experience and newest technology regarding the design and manufacture of high-quality products, which have earned Yamaha a reputation for dependability. Please take the time to read this manual thoroughly, so as to enjoy all advantages of your YQ50/YQ50L. The Owner’s Manual does not only instruct you in how to operate, inspect and maintain your scooter, but also in how to safeguard yourself and others from trouble and injury. In addition, the many tips given in this manual will help keep your scooter in the best possible condition. If you have any fur­ther questions, do not hesitate to contact your Yamaha dealer. The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first! Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most cur­rent product information available at the time of printing, there may be minor discrepancies between your scooter and this manual. If there is any question concerning this manual, please consult a Yamaha dealer.
WARNING
Please read this manual carefully and completely before operating this scooter.
EWA12411

IMPORTANT MANUAL INFORMATION

Particularly important information is distinguished in this manual by the following notations:
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
EAU10132
WARNING
NOTICE
TIP
A WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid damage to the vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
IMPORTANT MANUAL INFORMATION
EAUM1010
YQ50/YQ50L
OWNERS MANUAL
©2008 by MBK INDUSTRIE
1st edition, July 2008
All rights reserved
Any reprinting or unauthorized use
without the written permission of
MBK INDUSTRIE
is expressly prohibited.
Printed in France.

TABLE OF CONTENTS

SAFETY INFORMATION ..................1-1
Further safe-riding points ................1-5
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view........................................2-2
INSTRUMENT AND CONTROL
FUNCTIONS .......................................3-1
Main switch/steering lock ................3-1
Indicator and warning lights ............3-2
Speedometer unit ...........................3-3
Tachometer (if equipped) ................3-3
Fuel gauge ......................................3-4
Handlebar switches ........................3-4
Front brake lever ............................3-5
Rear brake lever .............................3-5
Fuel tank cap ..................................3-5
Fuel .................................................3-6
Catalytic converters ........................3-7
2-stroke engine oil ..........................3-8
Kickstarter .......................................3-9
Rider seat .......................................3-9
Storage compartments .................3-10
Adjusting the shock absorber
assembly (if equipped) ..............3-11
FOR YOUR SAFETY –
PRE-OPERATION CHECKS .............4-1
OPERATION AND IMPORTANT
RIDING POINTS.................................5-1
Starting a cold engine ....................5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-2
Braking ........................................... 5-2
Tips for reducing fuel
consumption ...............................5-3
Engine break-in ..............................5-3
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ...................................6-1
Periodic maintenance and
lubrication chart ..........................6-2
Removing and installing the
cowling and panel ....................... 6-6
Checking the spark plug .................6-7
Final transmission oil ......................6-8
Coolant ...........................................6-9
Cleaning the air filter element ......6-10
Adjusting the carburetor ............... 6-11
Checking the throttle cable free
play ........................................... 6-11
Tires .............................................6-12
Cast wheels .................................. 6-13
Checking the front and rear brake
lever free play ........................... 6-14
Checking the front and rear
brake pads ................................ 6-14
Checking the brake fluid level ...... 6-15
Changing the brake fluid .............. 6-16
Checking and lubricating the
throttle grip and cable ............... 6-16
Lubricating the front and rear
brake levers .............................. 6-16
Checking and lubricating the
centerstand ............................... 6-17
Checking the front fork ................. 6-17
Checking the steering .................. 6-18
Checking the wheel bearings ....... 6-18
Battery ......................................... 6-19
Replacing the fuse ....................... 6-20
Replacing the headlight bulb ....... 6-21
Replacing the tail/brake light
bulb ........................................... 6-22
Replacing a turn signal light
bulb ........................................... 6-22
Troubleshooting ........................... 6-23
Troubleshooting charts ................ 6-24
SCOOTER CARE AND STORAGE... 7-1
Care ............................................... 7-1
Storage .......................................... 7-3
SPECIFICATIONS ............................ 8-1
CONSUMER INFORMATION............ 9-1
Identification numbers .................... 9-1

SAFETY INFORMATION

EAUT1012
Be a Responsible Owner
As the vehicles owner, you are respon­sible for the safe and proper operation of your scooter. 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:
Obtain thorough instructions from
a competent source on all aspects of scooter operation.
Observe the warnings and mainte-
nance requirements in this Own­ers Manual.
Obtain qualified training in safe
and proper riding techniques.
Obtain professional technical ser-
vice as indicated in this Owner’s Manual and/or when made neces­sary by mechanical conditions.
Safe Riding
Perform the pre-operation checks each time you use the vehicle to make sure it is in safe operating condition. Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage. See page 4-1 for a list of pre-operation checks.
This scooter is designed to carry
the operator and a passenger.
TIP
Although this scooter is designed to carry a passenger, always comply with the local regulations.
The failure of motorists to detect
and recognize scooters in traffic is the predominating cause of auto­mobile/scooter accidents. Many accidents have been caused by an automobile driver who did not see the scooter. Making yourself con­spicuous appears to be very effec­tive in reducing the chance of this type of accident.
Therefore:
Wear a brightly colored jacket.
Use extra caution when you are
approaching and passing through intersections, since in­tersections are the most likely places for scooter accidents to occur.
Ride where other motorists can see you. Avoid riding in another motorists blind spot.
Many accidents involve inexperi-
enced operators. In fact, many op­erators who have been involved in accidents do not even have a cur­rent drivers license.
Make sure that you are qualified and that you only lend your scooter to other qualified opera­tors.
Know your skills and limits. Staying within your limits may help you to avoid an accident.
We recommend that you prac­tice riding your scooter where there is no traffic until you have become thoroughly familiar with the scooter and all of its con­trols.
1
1-1
SAFETY INFORMATION
Many accidents have been caused
by error of the scooter operator. A typical error made by the operator
1
is veering wide on a turn due to ex­cessive speed or undercornering (insufficient lean angle for the speed).
Always obey the speed limit and never travel faster than warrant­ed by road and traffic conditions.
Always signal before turning or changing lanes. Make sure that other motorists can see you.
The posture of the operator and
passenger is important for proper control.
The operator should keep both hands on the handlebar and both feet on the operator foot­rests during operation to main­tain control of the scooter.
The passenger should always hold onto the operator, the seat strap or grab bar, if equipped, with both hands and keep both feet on the passenger footrests. Never carry a passenger unless he or she can firmly place both feet on the passenger footrests.
Never ride under the influence of
alcohol or other drugs.
This scooter is designed for on-
road use only. It is not suitable for 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.
Always wear an approved helmet.
Wear a face shield or goggles.
Wind in your unprotected eyes could contribute to an impairment of vision that could delay seeing a hazard.
The use of a jacket, substantial
shoes, trousers, gloves, etc., is ef­fective in preventing or reducing abrasions or lacerations.
Never wear loose-fitting clothes,
otherwise they could catch on the control levers or wheels and cause injury or an accident.
1-2
Always wear protective clothing
that covers your legs, ankles, and feet. The engine or exhaust sys­tem become very hot during or af­ter operation and can cause burns.
A passenger should also observe
the above precautions.
Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon monoxide, a deadly gas. Breathing car­bon monoxide can cause headaches, dizziness, drowsiness, nausea, confu­sion, and eventually death. Carbon Monoxide is a colorless, odor­less, tasteless gas which may be present even if you do not see or smell any engine exhaust. Deadly levels of carbon monoxide can collect rapidly and you can quickly be overcome and unable to save yourself. Also, deadly levels of carbon monoxide can linger for hours or days in enclosed or poorly ventilated areas. If you experience any symptoms of carbon monoxide poison­ing, leave the area immediately, get fresh air, and SEEK MEDICAL TREAT­MENT.
SAFETY INFORMATION
Do not run engine indoors. Even if
you try to ventilate engine exhaust with fans or open windows and doors, carbon monoxide can rap­idly reach dangerous levels.
Do not run engine in poorly venti-
lated or partially enclosed areas such as barns, garages, or car­ports.
Do not run engine outdoors where
engine exhaust can be drawn into a building through openings such as windows and doors.
Loading
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, along with the information about accessories be­low, are some general guidelines to fol­low if loading cargo to your scooter:
The total weight of the operator, pas­senger, accessories and cargo must not exceed the maximum load limit.
Operation of an overloaded vehicle could cause an accident.
Maximum load:
180 kg (397 lb)
When loading within this weight limit, keep the following in mind:
Cargo and accessory weight
should be kept as low and close to the scooter as possible. Securely pack your heaviest items as close to the center of the vehicle as pos­sible and make sure to distribute the weight as evenly as possible on both sides of the scooter to min­imize imbalance or instability.
Shifting weights can create a sud-
den imbalance. Make sure that ac­cessories and cargo are securely
1-3
attached to the scooter before riding. Check accessory mounts and cargo restraints frequently.
Properly adjust the suspension for your load (suspension-ad­justable models only), and check the condition and pres­sure of your tires.
Never attach any large or heavy items to the handlebar, front fork, or front fender. Such items can create unstable handling or a slow steering response.
This vehicle is not designed to
pull a trailer or to be attached to a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle is an important decision. Genuine Yamaha accessories, which are avail­able only from a Yamaha dealer, have been designed, tested, and approved by Yamaha for use on your vehicle. Many companies with no connection to Yamaha manufacture parts and acces­sories or offer other modifications for Yamaha vehicles. Yamaha is not in a position to test the products that these
1
SAFETY INFORMATION
aftermarket companies produce. Therefore, Yamaha can neither en­dorse nor recommend the use of ac-
1
cessories not sold by Yamaha or modifications not specifically recom­mended by Yamaha, even if sold and installed by a Yamaha dealer.
Aftermarket Parts, Accessories, and Modifications
While you may find aftermarket prod­ucts similar in design and quality to genuine Yamaha accessories, recog­nize that some aftermarket accessories or modifications are not suitable be­cause of potential safety hazards to you or others. Installing aftermarket prod­ucts or having other modifications per­formed to your vehicle that change any of the vehicles design or operation characteristics can put you and others at greater risk of serious injury or death. You are responsible for injuries related to changes in the vehicle. Keep the following guidelines in mind, as well as those provided under “Load- ing when mounting accessories.
Never install accessories or carry
cargo that would impair the perfor­mance of your scooter. Carefully inspect the accessory before using it to make sure that it does not in any way reduce ground clearance or cornering clearance, limit sus­pension travel, steering travel or control operation, or obscure lights or reflectors.
Accessories fitted to the handle­bar or the front fork area can create instability due to improper weight distribution or aerody­namic changes. If accessories are added to the handlebar or front fork area, they must be as lightweight as possible and should be kept to a minimum.
Bulky or large accessories may seriously affect the stability of the scooter due to aerodynamic effects. Wind may attempt to lift the scooter, or the scooter may become unstable in cross winds. These accessories may also cause instability when passing or being passed by large vehicles.
1-4
Certain accessories can dis­place the operator from his or her normal riding position. This improper position limits the free­dom of movement of the opera­tor and may limit control ability, therefore, such accessories are not recommended.
Use caution when adding electri-
cal accessories. If electrical acces­sories exceed the capacity of the scooters electrical system, an electric failure could result, which could cause a dangerous loss of lights or engine power.
Aftermarket Tires and Rims
The tires and rims that came with your scooter were designed to match the performance capabilities and to provide the best combination of handling, brak­ing, and comfort. Other tires, rims, siz­es, and combinations may not be appropriate. Refer to page 6-12 for tire specifications and more information on replacing your tires.
SAFETY INFORMATION
EAU10372
Further safe-riding points
Be sure to signal clearly when
making turns.
Braking can be extremely difficult
on a wet road. Avoid hard braking, because the scooter could slide. Apply the brakes slowly when stopping on a wet surface.
Slow down as you approach a cor-
ner or turn. Once you have com­pleted a turn, accelerate slowly.
Be careful when passing parked
cars. A driver might not see you and open a door in your path.
Railroad crossings, streetcar rails,
iron plates on road construction sites, and manhole covers be­come extremely slippery when wet. Slow down and cross them with caution. Keep the scooter up­right, otherwise it could slide out from under you.
The brake pads could get wet
when you wash the scooter. After washing the scooter, check the brakes before riding.
Always wear a helmet, gloves,
trousers (tapered around the cuff and ankle so they do not flap), and a bright colored jacket.
Do not carry too much luggage on
the scooter. An overloaded scoot­er is unstable. Use a strong cord to secure any luggage to the carrier (if equipped). A loose load will af­fect the stability of the scooter and could divert your attention from the road. (See page 1-1.)
1
1-5

DESCRIPTION

Left view
EAU10410
2
1. Rear brake lever (page 3-5)
2. Left handlebar switches (page 3-4)
3. Speedometer unit (page 3-3)
4. Main switch/steering lock (page 3-1)
5. Final transmission oil filler cap (page 6-8)
6. Centerstand (page 6-17)
7. Kickstarter (page 3-9)
8. Air filter element (page 6-10)
1
3
2
4
9
8
7
5
6
9. Coolant level check window (page 6-9)
2-1
Right view
1. Fuel tank cap (page 3-5)
2. Throttle grip (page 6-11)
3. Front brake lever (page 3-5)
4. Coolant reservoir cap (page 6-9)
5. Battery/fuse (page 6-19/6-20)
6. Oil tank cap (page 3-8)
DESCRIPTION
EAU10420
3
2
1
6 5
4
2
2-2

INSTRUMENT AND CONTROL FUNCTIONS

Main switch/steering lock
OPEN
PUSH
3
ZAUM0253
The main switch/steering lock controls the ignition and lighting systems, and is used to lock the steering. The various positions are described below.
ON “”
All electrical circuits are supplied with power, and the engine can be started. The key cannot be removed.
TIP
The headlight, meter lighting and tail­light come on automatically when the engine is started.
EAU10460
EAU10640
OFF “”
EAU10661
All electrical systems are off. The key can be removed.
EWA10061
WARNING
Never turn the key to “” or “” while the vehicle is moving. Other­wise the electrical systems will be switched off, which may result in loss of control or an accident.
EAU10670
CHECK “”
The 2-stroke engine oil level warning light should come on. (See page 3-2.)
EAU10681
LOCK “”
The steering is locked, and all electrical systems are off. The key can be re­moved.
To lock the steering
1. Turn the handlebars all the way to the left.
2. Push the key in from the “” posi- tion, and then turn it to “” while still pushing it.
3. Remove the key.
3-1
To unlock the steering Push the key in, and then turn it to “” while still pushing it.
INSTRUMENT AND CONTROL FUNCTIONS
EAU11003
Indicator and warning lights
TEMP
12
ZAUM0254
1. Turn signal indicator light “”
2. High beam indicator light “”
3. Oil level warning light “”
Turn signal indicator light “”
This indicator light flashes when the turn signal switch is pushed to the left or right.
High beam indicator light “”
This indicator light comes on when the high beam of the headlight is switched on.
3
EAU11020
EAU11080
Oil level warning light “”
EAU11181
This warning light comes on when the key is in the “” position or if the oil lev- el 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 equivalent 2-stroke engine oil of either JASO grade “FC” or ISO grades EG-C or EG-D. The warning light should go off after the 2-stroke en­gine oil tank has been refilled.
TIP
If the 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.
ECA16291
NOTICE
Do not operate the vehicle until you know that the engine oil level is suf­ficient.
Coolant temperature warning
EAU11433
light “”
1/2
E
Km / h
TEMP
ZAUM0255
1. Coolant temperature warning light “”
1
F
This warning light comes on if the en­gine overheats. If this occurs, stop the engine immediately and allow the en­gine to cool.
ECA10021
NOTICE
Do not continue to operate the en­gine if it is overheating.
TIP
For radiator-fan-equipped vehi-
cles, the radiator fan(s) automati­cally switch on or off according to the coolant temperature in the ra­diator.
3
3-2
INSTRUMENT AND CONTROL FUNCTIONS
If the engine overheats, see page
6-24 for further instructions.
3
EAUT1821
Speedometer unit
1
2
ZAUM0801
1. Speedometer
2. Odometer
The speedometer unit is equipped with a speedometer and an odometer. The speedometer shows the riding speed. The odometer shows the total distance traveled.
EAU11851
Tachometer (if equipped)
1
ZAUM0292
1. Tachometer
2. Tachometer red zone
The electric tachometer allows the rider to monitor the engine speed and keep it within the ideal power range.
NOTICE
Do not operate the engine in the ta­chometer red zone. Red zone: 10000 r/min and above
2
ECA10031
3-3
INSTRUMENT AND CONTROL FUNCTIONS
EAU12140
Fuel gauge
1/2
E
ZAUM0257
1. Fuel gauge
F
The fuel gauge indicates the amount of fuel in the fuel tank. The needle moves towards “E” (Empty) as the fuel level decreases. When the needle reaches E, refuel as soon as possible.
TIP
Do not allow the fuel tank to empty itself completely.
1
Handlebar switches
Left
1. Horn switch “”
2. Turn signal switch /
3. Dimmer switch /
Right
EAU12347
Dimmer switch /
EAU12400
Set this switch to “” for the high beam and to “” for the low beam.
EAU12460
Turn signal switch /
To signal a right-hand turn, push this switch to “”. To signal a left-hand turn, push this switch to “”. When re- leased, 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.
EAU12500
Horn switch “”
Press this switch to sound the horn.
EAUM1132
Start switch “”
Push this switch while applying the front or rear brake to crank the engine with the starter. See page 5-1 for start­ing instructions prior to starting the en­gine.
3
1. Start switch “”
3-4
INSTRUMENT AND CONTROL FUNCTIONS
Front brake lever
1
3
ZAUM0084
1. Front brake lever
The front brake lever is located on the right handlebar grip. To apply the front brake, pull this lever toward the handle­bar grip.
EAU12900
EAU12950
Rear brake lever
1
ZAUM0085
1. Rear brake lever
The rear brake lever is located on the left handlebar grip. To apply the rear brake, pull this lever toward the handle­bar grip.
EAUM2081
Fuel tank cap
1
ZAUM0262
1. Fuel tank cap
To remove the fuel tank cap
1. Open the fuel tank cap lock cover.
2. Insert the key into the lock and turn it 1/4 turn counterclockwise. The lock will be released and the fuel tank cap can be removed.
To install the fuel tank cap
1. Push the fuel tank cap into position with the key inserted in the lock.
2. Turn the key clockwise to the orig­inal position, and then remove it.
3. Close the lock cover.
3-5
INSTRUMENT AND CONTROL FUNCTIONS
TIP
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.
EWA11141
WARNING
Make sure that the fuel tank cap is properly installed before riding. Leaking fuel is a fire hazard.
EAU13212
Fuel
Make sure there is sufficient gasoline in the tank.
EWA10881
WARNING
Gasoline and gasoline vapors are extremely flammable. To avoid fires and explosions and to reduce the risk of injury when refueling, follow these instructions.
1. Before refueling, turn off the en­gine and be sure that no one is sit­ting on the vehicle. Never refuel while smoking, or while in the vi­cinity of sparks, open flames, or other sources of ignition such as the pilot lights of water heaters and clothes dryers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the bottom of the filler tube. Because fuel expands when it heats up, heat from the engine or the sun can cause fuel to spill out of the fuel tank.
3-6
1
2
ZAUM0020
1. Fuel tank filler tube
2. Fuel level
3. Wipe up any spilled fuel immedi­ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry, soft cloth, since fuel may deteri­orate painted surfaces or plastic parts.
[ECA10071]
4. Be sure to securely close the fuel tank cap.
WARNING
Gasoline is poisonous and can cause injury or death. Handle gaso­line with care. Never siphon gaso­line by mouth. If you should swallow some gasoline or inhale a lot of gas­oline vapor, or get some gasoline in your eyes, see your doctor immedi-
EWA15151
3
INSTRUMENT AND CONTROL FUNCTIONS
ately. If gasoline spills on your skin, wash with soap and water. If gaso­line spills on your clothing, change your clothes.
3
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
7.0 L (1.85 US gal, 1.54 Imp.gal)
NOTICE
Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the exhaust system.
Your Yamaha engine has been de­signed to use premium unleaded gaso­line with a pump octane number [(R+M)/2] of 91 or higher, or a research octane number of 95 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand. Use of un­leaded fuel will extend spark plug life and reduce maintenance costs.
EAU41272
ECA11400
Gasohol (for Canada)
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.
EAU13445
Catalytic converters
This vehicle is equipped with catalytic converters in the exhaust system.
EWA10862
WARNING
The exhaust system is hot after op­eration. To prevent a fire hazard or burns:
Do not park the vehicle near
possible fire hazards such as grass or other materials that easily burn.
Park the vehicle in a place
where pedestrians or children are not likely to touch the hot exhaust system.
Make sure that the exhaust sys-
tem has cooled down before do­ing any maintenance work.
Do not allow the engine to idle
more than a few minutes. Long idling can cause a build-up of heat.
3-7
INSTRUMENT AND CONTROL FUNCTIONS
ECA10701
NOTICE
Use only unleaded gasoline. The use of leaded gasoline will cause unre­pairable damage to the catalytic converter.
EAUM2500
2-stroke engine oil
1
2
ZAUM0263
1. Storage compartment B
2. Oil tank cap
Make sure that there is sufficient 2­stroke engine oil in the oil tank. If nec­essary, add the recommended 2-stroke engine oil as follows.
1. Open the storage compartment. (See page 3-10.)
2. Remove the engine oil tank cap by pulling it off.
3. Fill the oil tank with the recom­mended 2-stroke engine oil, and then install the tank cap by push­ing it into the filler hole.
ZAUM0204
Recommended oil:
See page 8-1.
Oil quantity:
1.40 L (1.48 US qt, 1.23 Imp.qt)
TIP
Make sure that the 2-stroke engine oil tank cap is properly installed before riding the vehicle.
3
3-8
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