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INSTRUMENT AND CONTROL FUNCTIONS

3-3

3

EAUM2960

Fuel level warning light “

” 

This warning light comes on when the
fuel level drops below approximately
1.5 L (0.40 US gal, 0.33 Imp.gal). When
this occurs, refuel as soon as possible.

EAU11621

Speedometer unit 

UK ONLY

The speedometer unit is equipped with
a speedometer and an odometer. The
speedometer shows riding speed. The
odometer shows the total distance trav-
eled.

1. Speedometer

2. Odometer

1. Speedometer
2. Odometer

1

2

ZAUM0979

10

10

20

20

30

30

40

40 50

50

60

60

70

70

80

80

MPH

MPH

1 2

ZAUM0980

U2DKE0E0.book  Page 3  Wednesday, January 9, 2013  9:19 AM

Summary of Contents for YN50E

Page 1: ...PANTONE285C YN50E YN50EM OWNER S MANUAL 2DK F8199 E0 Read this manual carefully before operating this vehicle English E ...

Page 2: ...EAU46090 Read this manual carefully before operating this vehicle This manual should stay with this vehicle if it is sold U2DKE0E0 book Page 1 Wednesday January 9 2013 9 19 AM ...

Page 3: ...injury In addition the many tips given in this manual will help keep your scooter in the best possible condition If you have any fur ther 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 cur ...

Page 4: ...tial personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death A WARNING indicates a hazardous situation which if not avoided could result in death or serious injury A NOTICE indicates special precautions that must be taken to avoid damage to the vehicle or other property A TIP provides key information to make procedures easier or clearer WARNING NO...

Page 5: ...R S MANUAL 2012 by MBK INDUSTRIE 1st edition December 2012 All rights reserved Any reprinting or unauthorized use without the written permission of MBK INDUSTRIE is expressly prohibited Printed in France U2DKE0E0 book Page 2 Wednesday January 9 2013 9 19 AM ...

Page 6: ...nd lubrication chart 6 3 Removing and installing the cowling and panel 6 6 Checking the spark plug 6 7 Final transmission oil 6 8 Air filter element 6 9 Adjusting the carburetor 6 10 Checking the throttle grip free play 6 10 Tires 6 10 Panel wheels 6 12 Adjusting the front and rear brake lever free play 6 13 Checking the front and rear brake shoes 6 14 Checking and lubricating the cables 6 14 Chec...

Page 7: ...TABLE OF CONTENTS Storage 7 4 SPECIFICATIONS 8 1 CONSUMER INFORMATION 9 1 Identification numbers 9 1 U2DKE0E0 book Page 2 Wednesday January 9 2013 9 19 AM ...

Page 8: ...ach 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 ...

Page 9: ...ain tain 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...

Page 10: ...ty of an accident use extreme caution when adding cargo or accesso ries to your scooter Use extra care when riding a scooter that has added cargo or accessories Here along with the information about accessories be low are some general guidelines to fol low if loading cargo to your scooter The total weight of the operator pas senger accessories and cargo must not exceed the maximum load limit Opera...

Page 11: ...delines in mind as well as those provided under Load ing when mounting accessories Never install accessories or carry cargo that would impair the perfor mance 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 sus pension travel steering travel or control operation or obscure lights or reflec...

Page 12: ...reak Choose the location for the straps carefully so the straps will not rub against painted surfaces during transport The suspension should be com pressed somewhat by the tie downs if possible so that the scooter will not bounce excessive ly during transport EAUT2031 Further safe riding points Make sure to signal clearly when making turns Braking can be extremely difficult on a wet road Avoid har...

Page 13: ... 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 scoot er is unstable U2DKE0E0 book Page 6 Wednesday January 9 2013 9 19 AM ...

Page 14: ...hock absorber assembly 3 Final transmission oil filler cap page 6 8 4 Rear brake lever free play adjusting nut page 6 13 5 Final transmission oil drain bolt page 6 8 6 Kickstarter page 3 8 7 Air filter element page 6 9 U2DKE0E0 book Page 1 Wednesday January 9 2013 9 19 AM ...

Page 15: ...ke engine oil tank page 3 5 3 8 4 Seat page 3 8 5 Battery fuse page 6 17 6 19 6 Luggage hook page 3 10 7 Front brake lever free play adjusting nut page 6 13 8 Main switch steering lock page 3 1 9 Passenger footrest 10 Centerstand page 6 15 U2DKE0E0 book Page 2 Wednesday January 9 2013 9 19 AM ...

Page 16: ...ontrols and instruments GBR 4 1 Rear brake lever page 3 5 2 Left handlebar switches page 3 4 3 Speedometer unit page 3 3 4 Throttle grip page 6 10 5 Front brake lever page 3 4 U2DKE0E0 book Page 3 Wednesday January 9 2013 9 19 AM ...

Page 17: ...trical systems are off The key can be removed WARNING EWA10061 Never turn the key to or while the vehicle is moving Other wise 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 EAU10684 LOCK The steering is locked and all electrical systems are off The key can be re m...

Page 18: ... the warning light comes on during operation stop imme diately and fill the oil tank with Ya malube 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 en gine 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 en gine oil tan...

Page 19: ...refuel as soon as possible EAU11621 Speedometer unit UK ONLY The speedometer unit is equipped with a speedometer and an odometer The speedometer shows riding speed The odometer shows the total distance trav eled 1 Speedometer 2 Odometer 1 Speedometer 2 Odometer 1 2 ZAUM0979 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 MPH MPH 1 2 ZAUM0980 U2DKE0E0 book Page 3 Wednesday January 9 2013 9 19 AM ...

Page 20: ...leased the switch returns to the center position To cancel the turn signal lights push the switch in after it has re turned to the center position EAU12500 Horn switch Press this switch to sound the horn EAU12901 Front brake lever The front brake lever is located on the right side of the handlebar To apply the front brake pull this lever toward the throttle grip 1 Dimmer switch 2 Turn signal switc...

Page 21: ...fuel tank cap and the 2 stroke en gine oil tank cap are located under the seat See page 3 8 Fuel tank cap To remove the fuel tank cap turn it counterclockwise and then pull it off To install the fuel tank cap turn it clock wise 2 stroke engine oil tank cap 1 Rear brake lever 1 2 stroke engine oil tank cap 2 Fuel tank cap ZAUM0988 1 Fuel tank cap 1 2 stroke engine oil tank cap ZAUM0989 ZAUM0990 U2D...

Page 22: ...es of ignition such as the pilot lights of water heaters and clothes dryers 2 Do not overfill the fuel tank When refueling be sure to insert the pump nozzle into the fuel tank filler hole Stop filling when the fuel reaches the bottom of the filler tube Because fuel expands when it heats up heat from the engine or the sun can cause fuel to spill out of the fuel tank 3 Wipe up any spilled fuel immed...

Page 23: ... 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 do ing any maintenance work Do not allow the engine to idle more than a few minutes Long idling can caus...

Page 24: ...gine push the kickstarter down lightly with your foot until the gears engage and then push it down smoothly but forcefully EAU13932 Seat To open the seat 1 Place the scooter on the center stand 2 Insert the key into the main switch and then turn it counterclockwise to OPEN TIP Do not push inward when turning the key 3 Fold the seat up Recommended oil See page 8 1 Oil quantity 1 40 L 1 48 US qt 1 2...

Page 25: ...compartment accumulates heat when ex posed to the sun and or the en gine heat do not store anything susceptible to heat consum ables or flammable items inside it To avoid humidity from spread ing through the storage com partment wrap wet articles in a plastic bag before storing them in the compartment Since the storage compartment may get wet while the scooter is being washed wrap any articles sto...

Page 26: ...nat tended with the seat open EAUT1072 Luggage hook WARNING EWAT1031 Do not exceed the load limit of 3 kg 6 6 lb for the luggage hook Do not exceed the maximum load of 163 kg 359 lb for the ve hicle 1 Luggage hook U2DKE0E0 book Page 10 Wednesday January 9 2013 9 19 AM ...

Page 27: ...icle check the following points ITEM CHECKS PAGE Fuel Check fuel level in fuel tank Refuel if necessary Check fuel line for leakage 3 6 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 Final transmission oil Check vehicle for oil leakage 6 8 Front brake Check operation Lubricate cable if necessary Check lever free...

Page 28: ...oting points if necessary 6 15 Centerstand Make sure that operation is smooth Lubricate pivot if necessary 6 15 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 Battery Check fluid level Fill with distilled water if necessary 6 17 ITEM CHECKS PAGE U2DKE0E0 book Page 2 ...

Page 29: ...ee page 5 3 for engine break in in structions prior to operating the ve hicle for the first time 1 Turn the key to and when the oil level warning light comes on turn the key to NOTICE ECA10240 If the oil level warning light does not come on have a Yamaha dealer check the electrical circuit 2 Close the throttle completely 3 While applying the front or rear brake start the engine by pushing the kick...

Page 30: ... turn the throttle grip in direction a To reduce the speed turn the throt tle grip in direction b EAU16793 Braking WARNING EWA10300 Avoid braking hard or suddenly especially when leaning over to one side otherwise the scooter may skid or overturn Railroad crossings streetcar rails iron plates on road con struction sites and manhole covers become extremely slip pery when wet Therefore slow down whe...

Page 31: ...en 0 and 1000 km 600 mi For this reason you should read the follow ing material carefully Since the engine is brand new do not put an excessive load on it for the first 1000 km 600 mi The various parts in the engine wear and polish themselves to the correct operating clearances During this period prolonged full throt tle operation or any condition that might result in engine overheating must be av...

Page 32: ...Yamaha dealer check the vehicle EAU17213 Parking When parking stop the engine and then remove the key from the main switch WARNING EWA10311 Since the engine and exhaust system can become very hot park in a place where pedestri ans or children are not likely to touch them and be burned Do not park on a slope or on soft ground otherwise the vehicle may overturn increasing the risk of a fuel leak and...

Page 33: ...performing maintenance unless otherwise specified A running engine has moving parts that can catch on body parts or clothing and electrical parts that can cause shocks or fires Running the engine while ser vicing can lead to eye injury burns fire or carbon monoxide poisoning possibly leading to death See page 1 3 for more in formation about carbon monox ide WARNING EWA15460 Brake discs calipers dr...

Page 34: ...d with an asterisk should be performed by a Yamaha dealer as they require special tools data and technical skills EAU46920 Periodic maintenance chart for the emission control system NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING ANNUAL CHECK 1000 km 600 mi 6000 km 3500 mi 12000 km 7000 mi 18000 km 10500 mi 24000 km 14000 mi 1 Fuel line Check fuel and vacuum hoses for cracks or damage 2 Spark pl...

Page 35: ... brake Check operation and adjust brake lever free play Replace brake shoes Whenever worn to the limit 4 Rear brake Check operation and adjust brake lever free play Replace brake shoes Whenever worn to the limit 5 Wheels Check runout and for damage 6 Tires Check tread depth and for dam age Replace if necessary Check air pressure Correct if necessary 7 Wheel bearings Check bearing for looseness or ...

Page 36: ...ation and shock ab sorber for oil leakage 15 Autolube pump Check operation Bleed if necessary 16 Final transmission oil Check vehicle for oil leakage Change 17 V belt Replace Every 10000 km 6000 mi 18 Front and rear brake switches Check operation 19 Moving parts and cables Lubricate 20 Throttle grip Check operation Check throttle grip free play and adjust if necessary Lubricate cable and grip hous...

Page 37: ... riding in unusually wet or dusty areas 21 Lights signals and switches Check operation Adjust headlight beam NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING ANNUAL CHECK 1000 km 600 mi 6000 km 3500 mi 12000 km 7000 mi 18000 km 10500 mi 24000 km 14000 mi U2DKE0E0 book Page 5 Wednesday January 9 2013 9 19 AM ...

Page 38: ...ove the screws and then pull the cowling off as shown 2 Disconnect the headlight coupler and the auxiliary light lead coupler To install the cowling 1 Connect the headlight coupler and the auxiliary light lead coupler 2 Place the cowling in the original position and then install the screws EAU19281 Panel A To remove the panel Remove the screw and then pull the panel off as shown 1 Cowling A 2 Pane...

Page 39: ...tion of the engine To remove the spark plug 1 Remove panel A See page 6 6 2 Remove the spark plug cap 3 Remove the spark plug as shown with a spark plug wrench available at a Yamaha dealer To check the spark plug 1 Check that the porcelain insulator around the center electrode of the spark plug is a medium to light tan the ideal color when the vehicle is ridden normally TIP If the spark plug shows...

Page 40: ...4 Install the spark plug cap 5 Install the panel EAU20066 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 transmis sion oil must be changed as follows at the intervals specified in the periodic maintenance and lubrication chart 1 Start the engine warm ...

Page 41: ...ion oil fill er cap and its new O ring and then tighten the oil filler cap 9 Check the final transmission case for oil leakage If oil is leaking check for the cause EAU40371 Air filter element The air filter element should be cleaned or replaced at the intervals specified in the periodic maintenance and lubrica tion chart Have a Yamaha dealer clean or replace the air filter element 1 Final transmi...

Page 42: ... edge of the throttle grip Periodi cally check the throttle grip free play and if necessary have a Yamaha deal er adjust it EAU21876 Tires Tires are the only contact between the vehicle and the road Safety in all con ditions of riding depends on a relatively small area of road contact Therefore it is essential to maintain the tires in good condition at all times and replace them at the appropriate...

Page 43: ...ction The tires must be checked before each ride If the center tread depth reaches the specified limit if the tire has a nail or glass fragments in it or if the sidewall is cracked have a Yamaha dealer re place the tire immediately TIP The tire tread depth limits may differ from country to country Always comply with the local regulations Tire air pressure measured on cold tires 0 90 kg 0 198 lb Fr...

Page 44: ... Yamaha dealer who has the necessary professional knowl edge and experience to do so Ride at moderate speeds after changing a tire since the tire surface must first be broken in for it to develop its optimal characteristics EAUM2950 Panel wheels To maximize the performance durabil ity and safe operation of your vehicle note the following points regarding the specified wheels The wheel rims should ...

Page 45: ...e shoe plate in direction a To decrease the brake lever free play turn the adjusting nut in direction b Front Rear WARNING EWA10650 If proper adjustment cannot be ob tained as described have a Yamaha dealer make this adjustment 1 Front brake lever free play 1 Rear brake lever free play 1 ZAUM0107 1 ZAUM0108 Front brake lever free play 5 0 10 0 mm 0 20 0 39 in Rear brake lever free play 5 0 10 0 mm...

Page 46: ...ler replace the brake shoes as a set EAU50800 Checking and lubricating the cables The operation of all control cables and the condition of the cables should be checked before each ride and the ca bles and cable ends should be lubricat ed if necessary If a cable is damaged or does not move smoothly have a Yamaha dealer check or replace it WARNING Damage to the outer housing of cables may result in ...

Page 47: ...he intervals specified in the periodic main tenance and lubrication chart EAU23192 Checking and lubricating the centerstand The operation of the centerstand should be checked before each ride and the pivots and metal to metal con tact surfaces should be lubricated if necessary WARNING EWA11301 If the centerstand does not move up and down smoothly have a Yamaha dealer check or repair it Otherwise t...

Page 48: ...ce the vehicle on a level sur face and hold it in an upright posi tion WARNING To avoid injury securely support the vehicle so there is no danger of it falling over EWA10751 2 While applying the front brake push down hard on the handlebars several times to check if the front fork compresses and rebounds smoothly NOTICE ECA10590 If any damage is found or the front fork does not operate smoothly hav...

Page 49: ...e steering EAU23291 Checking the wheel bearings The front and rear wheel bearings must be checked at the intervals specified in the periodic maintenance and lubrica tion chart If there is play in the wheel hub or if the wheel does not turn smoothly have a Yamaha dealer check the wheel bearings EAUM1404 Battery A poorly maintained battery will corrode and discharge quickly The electrolyte level bat...

Page 50: ...tes and seek prompt medical attention Batteries produce explosive hy drogen gas Therefore keep sparks flames cigarettes etc away from the battery and pro vide sufficient ventilation when charging it in an enclosed space KEEP THIS AND ALL BATTER IES OUT OF THE REACH OF CHILDREN 5 Check and if necessary tighten the battery lead connections and correct the breather hose routing To store the battery 1...

Page 51: ... The fuse holder is located behind panel A See page 6 6 If the fuse is blown replace it as fol lows 1 Turn the key to and turn off all electrical circuits 2 Remove the blown fuse and then install a new fuse of the specified amperage WARNING Do not use a fuse of a higher amperage rating than recommended to avoid causing extensive dam age to the electrical system and possibly a fire EWA15131 3 Turn ...

Page 52: ...ing a cloth moistened with al cohol or thinner Headlight lens Do not affix any type of tinted film or stickers to the headlight lens Do not use a headlight bulb of a wattage higher than specified NOTICE ECA10670 It is advisable to have a Yamaha dealer perform this job 1 Place the scooter on the center stand 2 Remove cowling A See page 6 6 3 Disconnect the headlight coupler 4 Remove the headlight b...

Page 53: ...a Yamaha dealer perform this job 1 Place the scooter on the center stand 2 Remove cowling A See page 6 6 3 Remove the turn signal light bulb socket together with the bulb by turning it counterclockwise 4 Remove the burnt out bulb by pushing it in and turning it counter clockwise 5 Insert a new bulb into the socket push it in and then turn it clock wise until it stops 6 Install the socket together ...

Page 54: ...ket push it in and then turn it clock wise until it stops 4 Install the lens by installing the screws NOTICE Do not over tighten the screws otherwise the lens may break ECA10681 EAU24330 License plate light if equipped If the license plate light does not come on have a Yamaha dealer check the electrical circuit or replace the bulb 1 Screw 2 Tail brake light lens 1 Tail brake light bulb 1 Turn sign...

Page 55: ...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 your self However should your scooter re quire any repair take it to a Yamaha dealer whose skilled technicians have the necessary tools experience and know how to service the scooter prop erly Us...

Page 56: ...ODIC MAINTENANCE AND ADJUSTMENT 6 24 6 heaters or furnaces Gasoline or gasoline vapors can ignite or ex plode causing severe injury or property damage U2DKE0E0 book Page 24 Wednesday January 9 2013 9 19 AM ...

Page 57: ...ompression There is no compression The engine does not start Have a Yamaha dealer check the vehicle Have a Yamaha dealer check the vehicle Remove the spark plug and check the electrodes 2 Ignition Wet Dry 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 Check the compression Open the throttle halfway...

Page 58: ...fler 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 in stalled 3 Remove extremely stubborn dirt like oil burnt onto the crankcase with a degreasing agent and a brush but never apply such prod ucts onto seals gaskets and wheel axles Always rinse the dirt and de...

Page 59: ...nd 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 cor rosive in combination with water carr...

Page 60: ... storing or covering it WARNING EWA10942 Contaminants on the brakes or tires can cause loss of control 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 ac etone and wash the tires with warm water and a mild deter gent Before operating the scooter test its braking performance and cornering behavior...

Page 61: ...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 spark ing during the next step d Turn the engine over several times with the starter This will coat the cylinder wall with oil WARNING To prevent dam age or injury from sparking make ...

Page 62: ...OTER CARE AND STORAGE 7 5 7 C 90 F For more information on storing the battery see page 6 17 TIP Make any necessary repairs before storing the scooter U2DKE0E0 book Page 5 Wednesday January 9 2013 9 19 AM ...

Page 63: ...uantity 0 11 L 0 12 US qt 0 10 Imp qt Air filter Air filter element Wet element Fuel Recommended fuel Premium unleaded gasoline only Fuel tank capacity 6 1 L 1 61 US gal 1 34 Imp gal Fuel reserve amount 1 5 L 0 40 US gal 0 33 Imp gal Carburetor Type quantity PY12 x 1 Spark plug s Manufacturer model YN50E NGK BR8HS YN50EM NGK BPR4HS Spark plug gap 0 6 0 7 mm 0 024 0 028 in Clutch Clutch type Dry ce...

Page 64: ...r type Coil spring oil damper Wheel travel 70 0 mm 2 76 in Rear suspension Type Unit swing Spring shock absorber type Coil spring oil damper Wheel travel 67 3 mm 2 65 in Electrical system Ignition system DC CDI Charging system AC magneto Battery Model YB 4L B YUASA Voltage capacity 12 V 4 0 Ah Headlight Bulb type Halogen bulb Bulb voltage wattage quantity Headlight 12 V 35 0 W 35 0 W 1 Tail brake ...

Page 65: ...tion number The vehicle identification number is stamped into the frame TIP The vehicle identification number is used to identify your vehicle and may be used to register it with the licensing authority in your area EAU26490 Model label The model label is affixed to the bottom of the seat See page 3 8 Record the information on this label in the space provided This information will be need ed when ...

Page 66: ...I Identification numbers 9 1 Indicator lights and warning lights 3 2 K Kickstarter 3 8 L License plate light if equipped 6 22 Luggage hook 3 10 M Main switch steering lock 3 1 Maintenance and lubrication periodic 6 3 Maintenance emission control system 6 2 Matte color caution 7 1 Model label 9 1 O Oil level warning light 3 2 P Parking 5 4 Part locations 2 1 S Safe riding points 1 5 Safety informat...

Page 67: ...U2DKE0E0 book Page 2 Wednesday January 9 2013 9 19 AM ...

Page 68: ...PRINTED IN FRANCE 2013 01 E PANTONE285C MBK Industrie Z I de Rouvroy 02100 Saint Quentin ...

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