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Welcome to the Yamaha world CS50Z/CS50, manufacture of high of motorcycling! As the owner of the CS50Z/CS50, 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.
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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 Acceleration and deceleration ..5-2 Checking and lubricating the Braking..........5-2 throttle grip and cable ....6-14 DESCRIPTION........2-1 Engine break-in.........5-2 Adjusting the autolube pump ..6-14 Left view ...........2-1 Parking..........5-2 Lubricating the front and rear Right view .........2-2 brake levers .........6-14 Controls and instruments ....2-3 PERIODIC MAINTENANCE AND...
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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The majority of fatalities from scooter Modifications made to this scooter conditions. accidents are the result of head inju- not approved by Yamaha, or the • Always signal before turning or ries. The use of a safety helmet is the removal of original equipment, may changing lanes.
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Since Yamaha cannot they must be as lightweight as Gasoline and exhaust gas test all other accessories that may be...
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SAFETY INFORMATION • Never refuel while smoking or If you should swallow any gasoli- covers become extremely slip- in the vicinity of an open flame. ne, inhale a lot of gasoline vapor, pery when wet. Slow down and Never start the engine or let it run or allow gasoline to get into your cross them with caution.
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 3-1.) “LOCK” while vehicle moving, otherwise the electrical EAU10680 systems will be switched off, which LOCK may result in loss of control or an...
3. If the warning light does not overheated. Pushing the reset button switches the come on, have a Yamaha dealer display between the odometer mode check the electrical circuit. “TOTAL” and the tripmeter mode “TRIP”.
INSTRUMENT AND CONTROL FUNCTIONS the reset button for at least two 3. Push the “SET” button for at least EAU12343 Handlebar switches second. two seconds. The tripmeter can be used together 4. When the hours digits start flas- with the fuel gauge to estimate the hing, push the “SET”...
INSTRUMENT AND CONTROL FUNCTIONS EAU12500 EAU12900 The rear brake lever is located on the Horn switch “a” Front brake lever left handlebar grip. To apply the rear Press this switch to sound the horn. brake, pull this lever toward the hand- lebar grip.
1,9L(0,42US gal) (1,67Imp.gal) 2. Fuel level Make sure that there is sufficient fuel Your Yamaha engine has been desig- in the tank. When refueling, be sure to ned to use regular unleaded gasoline insert the pump nozzle into the fuel...
INSTRUMENT AND CONTROL FUNCTIONS EAUS1050 To open the seat EAU14440 Kickstarter Storage compartment 1. Place the scooter on the centers- tand. 2. Insert the key into the main switch, and then turn it counter- clockwise. NOTE: Do not push inward when turning the key.
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INSTRUMENT AND CONTROL FUNCTIONS ECA10080 NOTE: CAUTION Some helmets cannot be stored Keep the following points in mind in the storage compartment when using the storage compart- because of their size or shape. ment. Do not leave your scooter unat- Since the storage compart- tended with the seat open.
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.
• Make sure that operation is smooth. • Check cable free play. Throttle grip 6-9, 6-14 • If necessary, have Yamaha dealer adjust cable free play and lubricate cable and grip housing. • Check for damage. • Check tire condition and tread depth.
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PRE-OPERATION CHECKS ITEM CHECKS PAGE • Make sure that all nuts, bolts and screws are properly tightened. — Chassis fasteners • Tighten if necessary. Instruments, lights, • Check operation. — signals and switches • Correct if necessary. • Check coolant level in reservoir. Coolant •...
Exhaust fumes If the oil level warning light does NOTE: are poisonous, and inhaling not come on, have a Yamaha dealer Before starting off, allow the engine to them can cause loss of cons- check the electrical circuit.
(especially when leaning over during the engine break-in period, ces. During this period, prolonged to one side), otherwise the sco- immediately have a Yamaha dealer full-throttle operation or any condition oter may skid or overturn. check the vehicle. that might result in engine overhea- Railroad crossings, streetcar ting must be avoided.
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OPERATION AND IMPORTANT RIDING POINTS EWA10310 s WARNING Since the engine and exhaust system can become very hot, park in a place where pedes- trians or children are not likely to touch them. Do not park on a slope or on soft ground, otherwise the vehicle may overturn.
Consult a Yamaha dealer for proper tion possible. The most important maintenance intervals. points of inspection, adjustment, and lubrication are explained on the follo- wing pages.
The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead. 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)
PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING (x 1000 Km) ANNUAL ITEM CHEK OR MAINTENANCE JOB CHECK 9 * Wheel bearings • Check bearing for looseness or damage. • Check bearing play and steering for roughness. 10 * Steering bearings •...
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PERIODIC MAINTENANCE AND MINOR REPAIR EAU18660 NOTE: The air filter needs more frequent service if you are riding in unusually wet or dusty areas. Hydraulic brake service • Regularly check and, if necessary, correct the brake fluid level. • Every two years replace the internal components of the brake master cylinder and caliper, and change the bra- ke fluid.
Instead, have 2. Clean the surface of the spark Checking the spark plug a Yamaha dealer check the vehicle. plug gasket and its mating surfa- The spark plug is an important engine ce, and then wipe off any grime 2.
If any leakage is found, have a used oil. for oil leakage. If oil is leaking, Yamaha dealer check and repair the 4. Remove the oil filler cap and check for the cause. scooter. In addition, the final trans-...
If water has been added to the 3. If the coolant is at or below the a false reading. coolant, have a Yamaha dealer minimum level mark, remove the check the antifreeze content of front cowling by removing the the coolant as soon as possi- screws.
PERIODIC MAINTENANCE AND MINOR REPAIR EAUS1090 EWA10430 s WARNING Cleaning the air filter element Use only a dedicated parts clea- ning solvent. To avoid the risk of The air filter element should be clea- fire or explosion, do not use gasoli- ned at the intervals specified in the ne or solvents with a low flash periodic maintenance and lubrication...
Therefore, all car- air filter case. buretor adjustments should be left to The engine should never be a Yamaha dealer, who has the neces- operated without the air filter sary professional knowledge and element installed, otherwise experience.
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PERIODIC MAINTENANCE AND MINOR REPAIR EWA10500 EWA11200 s WARNING s WARNING The tire air pressure must be Because loading has an enormous checked and adjusted on cold impact on the handling, braking, tires (i.e., when the temperatu- performance and safety characte- re of the tires equals the ristics of your vehicle, you should ambient temperature).
The tire tread depth limits may differ a Yamaha dealer, who has the tem has been checked or repaired from country to country. Always necessary professional know- by a Yamaha dealer.
Checking the front brake wear indicator grooves have almost pads and rear brake shoes disappeared, have a Yamaha dealer replace the brake pads as a set. The front brake pads and the rear bra- ke shoes must be checked for wear at...
EAU22720 ber seals may deteriorate, cau- Changing the brake fluid sing leakage and poor braking Have a Yamaha dealer change the performance. brake fluid at the intervals specified in the NOTE after the periodic mainte- Recommended brake fluid: DOT 4 nance and lubrication chart.
The Autolube pump is a vital and sop- centerstand damaged or does not move smoothly, histicated component of the engine, have a Yamaha dealer check or repla- which must be adjusted by a Yamaha ce it. dealer at the intervals specified in the...
3. Insert a new bulb into the socket. 4. Install the panel by installing the screws. 5. Have a Yamaha dealer adjust the 1. Headlight bulb headlight beam if necessary. If a bulb burns out, replace it as follows.
PERIODIC MAINTENANCE AND MINOR REPAIR EAU24310 EAU23370 Replacing the license plate Battery light bulb 1. Rear turn signal light bulb 4. Install the lens by installing the This model is equipped with a sealed- screws. type (MF) battery, which does not 1.
To charge the battery To charge a sealed-type (MF) In case of contact, administer Have a Yamaha dealer charge the battery, a special (constant- the following FIRST AID. battery as soon as possible if it seems voltage) battery charger is •...
Yamaha dealer Use only genuine Yamaha replace- check the electrical system. ment 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. 6-19...
Remove the spark plug and check the electrodes. The engine does not start. Have a Yamaha dealer check the vehicle. Check the battery. 4. Battery The engine turns over The battery is good.
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.
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SCOOTER CARE AND STORAGE NOTE: ber by loosening the drain bolt; EWA10950 s WARNING Consult a Yamaha dealer for advice this will prevent fuel deposits To prevent damage or injury from on what products to use. from building up. Pour the drai- sparking, make sure to ground the ned fuel into the fuel tank.
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SCOOTER CARE AND STORAGE information on storing the bat- tery, see page 6-17. NOTE: Make any necessary repairs before storing the scooter.
CS50 10.20 :1 Tire air pressure (measured on cold NGK/BR8HS CS50Z 11.40 :1 Spark plug gap tires) Starting system 0.6-0.7 mm Front Electric starter and kickstarter Clutch type 175 kPa Lubrication system Dry, centrifugal automatic Rear Separate lubrication (Yamaha autolube) 200 kPa...
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SPECIFICATIONS Front wheel Limit Charging system 0.8 mm Rim size Flywheel magneto Front brake lever free play MT 2.75X12 Battery 2.0-5.0 mm Rear wheel Rear brake lever free play Model Rim size 10.0-20.0 mm GT4L-BS MT 3.00X12 Voltage, capacity Front brake 12 V, 4.0 Ah Type Bulb voltage, wattage x quantity...