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INTRODUCTION Welcome to the Yamaha world of motorcycling! As the owner of the YN50, 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.
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. EWA12410 s WARNING PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS SCOOTER.
TABLE OF CONTENTS SAFETY INFORMATION .....1-1 Starting off ........5-1 Adjusting the Autolube pump..6-13 Acceleration and deceleration ..5-2 Lubricating the front and rear brake DESCRIPTION........2-1 Braking..........5-2 levers ...........6-14 Left view ...........2-1 Engine break-in.........5-2 Checking and lubricating the Right view .........2-2 Parking..........5-3 centerstand .........6-14 Controls and instruments ....2-3 Checking the front fork....6-14...
SAFETY INFORMATION EAUT1010 Safe riding • Ride where other motorists can SCOOTERS ARE SINGLE TRACK Always make pre-operation see you. Avoid riding in anot- VEHICLES. THEIR SAFE USE AND checks. Careful checks may help her motorist’s blind spot. OPERATION DEPENDENT prevent an accident.
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Modifications made to this scooter other motorists can see you. ries. The use of a safety helmet is the not approved by Yamaha, or the The posture of the operator and single most critical factor in the pre- removal of original equipment, may passenger is important for proper vention or reduction of head injuries.
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Since Yamaha cannot they must be as lightweight as 155 kg (341.78 lb). When loading wit- test all other accessories that may be...
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SAFETY INFORMATION an electric failure could result, where pedestrians or children EAU10350 Further safe-riding points which could cause a dangerous are not likely to touch these hot loss of lights or engine power. areas. Gasoline and exhaust gas • Do not park the scooter on a GASOLINE IS HIGHLY FLAMMA- slope or soft ground, otherwise BLE:...
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SAFETY INFORMATION 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 carriers.
INSTRUMENT AND CONTROL FUNCTIONS EAU10460 EAU10670 EWA10060 s WARNING Main switch/steering lock The 2-stroke engine oil level warning Never turn the key to “OFF” or light should come on. (See page 3-2.) “LOCK” while vehicle moving, otherwise the electrical EAU10680 systems will be switched off, which LOCK may result in loss of control or an...
2-stroke “d” engine oil tank has been refilled, have The corresponding indicator light flas- an Yamaha dealer check the electrical hes when the turn signal switch is circuit. pushed to the left or right.
INSTRUMENT AND CONTROL FUNCTIONS EAUM1090 the reset button for at least two EAU12110 Speedometer unit Fuel gauge second. The fuel gauge indicates the amount The tripmeter can be used together of fuel in the fuel tank. The needle with the fuel gauge to estimate the moves towards “E”...
INSTRUMENT AND CONTROL FUNCTIONS EAUS1010 EAU12343 EAU12400 Dimmer switch “j/k” Clock Handlebar switches Set this switch to “j” for the high To set the clock beam and to “k” for the low beam. 1. Turn the key to “f”. 2. Set the odometer/tripmeter dis- EAU12460 play to “TOTAL”...
INSTRUMENT AND CONTROL FUNCTIONS EAU12900 EAU12950 EAU13200 Front brake lever Rear brake lever Fuel and 2-stroke engine oil tank caps The front brake lever is located on the The rear brake lever is located on the right handlebar grip. To apply the left handlebar grip.
INSTRUMENT AND CONTROL FUNCTIONS EWA10140 EAU13210 ECA10070 s WARNING CAUTION Fuel Make sure that the fuel and 2-stro- Immediately wipe off spilled fuel ke engine oil tank caps are properly with a clean, dry, soft cloth, since installed before riding the scooter. fuel may deteriorate painted surfa- ces or plastic parts.
INSTRUMENT AND CONTROL FUNCTIONS EAU13460 EAUS1050 EAU13931 2-stroke engine oil Kickstarter Seat Make sure that there is sufficient oil in the 2-stroke engine oil tank. Add the recommended 2-stroke engine oil if necessary. NOTE: Make sure that the 2-stroke engine oil tank cap is properly installed.
INSTRUMENT AND CONTROL FUNCTIONS NOTE: EAU14510 Since the storage compart- Storage compartment Make sure that the seat is properly ment may get wet while the There is a storage compartment secured before riding. scooter is being washed, wrap under the seat. any articles stored in the com- EWA10960 partment in a plastic bag.
PRE-OPERATION CHECKS EAU15591 The condition of a vehicle is the owner’s responsibility. Vital compo- nents 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.
• Check oil level in transmission case. Transmission oil • If necessary, add recommended oil to specified level. • Check operation. • If soft or spongy, have Yamaha dealer bleed hydraulic system. • Check brake pads for wear. Front brake • Replace if necessary.
Before starting off, allow the engine to their functions before riding. instructions prior to operating the warm up. Consult Yamaha dealer vehicle for the first time. 1. While pulling the rear brake lever regarding any control or func- 1. Turn the key to “f”.
OPERATION AND IMPORTANT RIDING POINTS EAU16780 EAU16791 EAU16830 Acceleration and Braking Engine break-in deceleration 1. Close the throttle completely. There is never a more important 2. Apply both front and rear brakes period in the life of your engine than simultaneously while gradually the period between 0 and 1000 km increasing the pressure.
1000 km (600 mi) and beyond Avoid prolonged full-throttle opera- tion. Vary the speed occasionally. ECA10270 CAUTION If any engine trouble should occur during the engine break-in period, immediately have a Yamaha dealer check the vehicle.
The intervals given in the periodic Consult a Yamaha dealer for proper maintenance and lubrication chart maintenance intervals. should be simply considered as a general guide under normal riding conditions.
• From 30000 km, repeat the maintenance intervals starting from 6000 km. • Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills. ODOMETER READING (x 1000 Km)
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PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING (x 1000 Km) ANNUAL CHECK ITEM CHECK OR MAINTENANCE JOB • Check bearing play and steering for roughness. 10 * Steering bearings • Lubricate with lithium-soap-based grease. Every 24000 km • Make sure that all nuts, bolts and screws 11 * Chassis fasteners are properly tightened.
Instead, have any spark plug to slowly erode, the ce, and then wipe off any grime a Yamaha dealer check the vehicle. spark plug should be removed and from the spark plug threads. 2. Check the spark plug for electro- checked in accordance with the 3.
If any leakage is found, have a used oil. Make sure that no oil gets on Yamaha dealer check and repair the 4. Remove the oil filler cap and the tire or wheel. scooter. In addition, the final trans- drain bolt to drain the oil from the 7.
PERIODIC MAINTENANCE AND MINOR REPAIR EAU20491 2. Remove the air filter case cover 3. Lightly tap the air filter element to Cleaning the air filter by removing the screws, and remove most of the dust and dirt, element then pull the air filter element out. and then blow the remaining dirt out with compressed air as shown.
Periodically check 5. Install the air filter case cover by a Yamaha dealer, who has the neces- the throttle cable free play and, if installing the screws. sary professional knowledge and necessary, adjust it as follows.
PERIODIC MAINTENANCE AND MINOR REPAIR play, turn the adjusting nut in EAU21870 90 kg (198 lb) to maximum load: Tires Front: direction (a). To decrease the 175 kPa (25.4 psi) (1.75 kgf/cm To maximize the performance, durabi- throttle cable free play, turn the Rear: lity, and safe operation of your adjusting nut in direction (b).
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Tire information and brake related parts, inclu- ding the tires, should be left to This motorcycle is equipped with Tire inspection a Yamaha dealer, who has the tubeless tires. Front tire: necessary professional know- Size: ledge and experience.
The wheel rims should be chec- ked for cracks, bends or warpage before each ride. If any damage is found, have a Yamaha dealer replace the wheel. Do not attempt even the smallest repair a. Free play to the wheel.
(a). To decrea- disappeared, have a Yamaha dealer se the brake lever free play, turn the replace the brake pads as a set. adjusting nut in direction (b).
Checking the front brake Changing the brake fluid lity brake fluid, otherwise the rub- fluid level Have a Yamaha dealer change the ber seals may deteriorate, cau- brake fluid at the intervals specified in sing leakage and poor braking the periodic maintenance and lubrica- performance.
The operation of all control cables The operation of the throttle grip which must be adjusted by a Yamaha and the condition of the cables should be checked before each ride. dealer at the intervals specified in the...
WARNING Lithium-soap-based grease (all- If the centerstand does not move purpose grease) up and down smoothly, have a Yamaha dealer check or repair it. Recommended lubricant: Check the inner tubes for scratches, Lithium-soap-based grease (all- damage and excessive oil leakage.
If any free cause danger. Therefore, the opera- front fork compresses play can be felt, have a Yamaha tion of the steering must be checked rebounds smoothly. dealer check or repair the stee- as follows at the intervals specified in ring.
If there is play in the tions and breather hose routing wheel hub or if the wheel does not should be checked before each ride turn smoothly, have a Yamaha dealer and at the intervals specified in the 1. Maximum level check the wheel bearings.
PERIODIC MAINTENANCE AND MINOR REPAIR • EYES: Flush with water for 15 2. If the battery will be stored for EAUS1180 Replacing the fuse minutes and seek prompt more than two months, check the medical attention. specific gravity of the electrolyte Batteries produce explosive at least once a month and fully hydrogen gas.
ECA10670 avoid causing extensive damage to CAUTION the electrical system and possibly a It is advisable to have a Yamaha fire. dealer perform this job. 3. Turn the key to “ON” and turn on 1. Remove cowling 1.
PERIODIC MAINTENANCE AND MINOR REPAIR EAU24210 EAUS1140 5. Insert a new bulb into the socket, Replacing a turn signal light Replacing the tail/brake light push it in, and then turn it clock- bulb bulb or a rear turn signal wise until it stops. Turn signal light bulb 1.
Imitation parts may look 4. Insert a new bulb into the socket. like Yamaha parts, but they are often 5. Install the socket (together with inferior, have a shorter service life and the bulb) by pushing it in.
PERIODIC MAINTENANCE AND MINOR REPAIR EAU25962 Troubleshooting chart EWA10840 s WARNING Keep away open flames and do not smoke while checking or working on the fuel system. 6-21...
SCOOTER CARE AND STORAGE EAU26090 ducts onto seals, gaskets and thinner, fuel (gasoline), rust Care wheel axles. Always rinse the dirt removers or inhibitors, brake While the open design of a scooter and degreaser off with water. fluid, antifreeze or electrolyte. reveals the attractiveness of the tech- Cleaning Do not use high-pressure was-...
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SCOOTER CARE AND STORAGE After normal use ECA10790 6. Wax all painted surfaces. CAUTION Remove dirt with warm water, a mild 7. Let the scooter dry completely Do not use warm water since it detergent, and a soft, clean sponge, before storing or covering it.
SCOOTER CARE AND STORAGE NOTE: EAU26300 3. Fill up the fuel tank and add fuel Storage Consult a Yamaha dealer for advice stabilizer (if available) to prevent Short-term on what products to use. the fuel tank from rusting and the Always store your scooter in a cool, fuel from deteriorating.
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SCOOTER CARE AND STORAGE EWA10950 8. Remove the battery and fully s WARNING charge it. Store it in a cool, dry To prevent damage or injury from place and charge it once a sparking, make sure to ground the month. Do not store the battery in spark plug electrodes while turning an excessively cold or warm pla- the engine over.
0.6-0.7 mm (0.024 - 0.028 in) Starting system Clutch type Loading condition Electric starter and kickstarter Dry, centrifugal automatic 0-90 kg (0-198 lb) Lubrication system Transmission Front Separate lubrication (Yamaha autolube) 175 kPa (25.4 psi) (1.75 kgf/cm Primary reduction system Helical gear...
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SPECIFICATIONS Rear Rear suspension Fuses 200 kPa (29 psi) (2.00 kgf/cm Type Main fuse Loading condition Unit swing 7.5 A 90 kg (198 lb) - maximum load Spring/shock absorber type Front Coil spring/oil damper 175 kPa (25.4 psi) (1.75 kgf/cm Wheel travel Rear 60 mm (2.36 in)
Yamaha may be used to register your dealer or for reference in case the motorcycle with the licensing autho- rity in your area.
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INDEX 2-stroke engine oil ........3-7 Front brake lever ........3-5 Fuel ............3-6 Seat ............3-7 Fuel and 2-stroke engine oil tank caps ..3-5 Acceleration and deceleration ....5-2 Speedometer unit ........3-3 Fuel gauge ..........3-3 Adjusting the Autolube pump ....6-13 Starting a cold engine........5-1 Adjusting the brake lever free play ..6-10 Starting off ..........5-1 Adjusting the carburetor ......6-7...
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YAMAHA MOTOR ESPAÑA, S.A. PRINTED IN NEEDERLAND 2005.12...
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