✦✧✯ ✲✦ ✰ ❆❍ ✱✶✰✤✫✦ ✤ ! Read this manual carefully before operating this vehicle.
✦✧✯ ✲✦ ❉❖ ✥✦ ✤ EAU50920 Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold. YAMAHA MOTOR ELECTRONICS CO., LTD. 1450-6, Mori, Mori-machi, Shuchi-gun, Shizuoka-ken, 437-0292 Japan DECLARATION of CONFORMITY We Company: YAMAHA MOTOR ELECTRONICS CO., LTD.
✦✧✯ ✬ ✲✦ ✤ INTRODUCTION EAU10113 Welcome to the Yamaha world of motorcycling! As the owner of the YP400/YP400A, 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 YP400/YP400A.
✦✧✯ ✬ ✲✦ ✤ IMPORTANT MANUAL INFORMATION EAU10132 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. WARNING NOTICE TIP A WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
✦✧✯ ✬ ✲✦ ✥ IMPORTANT MANUAL INFORMATION EAU10200 YP400/YP400A OWNER’S MANUAL ©2010 by Yamaha Motor Co., Ltd. 1st edition, August 2010 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd. is expressly prohibited. Printed in Japan.
✦✧✯ ✬ ✲✦ ✤ TABLE OF CONTENTS SAFETY INFORMATION ...................1-1 Further safe-riding points .................1-5 DESCRIPTION ...................................2-1 Left view ...........................................2-1 Right view .........................................2-2 Controls and instruments..................2-3 INSTRUMENT AND CONTROL FUNCTIONS ........................................3-1 Immobilizer system ..........................3-1 Main switch/steering lock ........
✦✧✯ ✬ ✲✦ ✥ TABLE OF CONTENTS Front turn signal light .....................6-34 Replacing a rear turn signal light bulb .....................................6-34 Replacing the license plate light bulb .....................................6-35 Auxiliary light bulb .........................6-35 Troubleshooting .............................6-36 Troubleshooting charts ..................6-37 SCOOTER CARE AND STORAGE ...........................................7-1 Matte color caution ........
✦✧✯ ✬ ✲✦ ✤ SAFETY INFORMATION EAU10268 1 Be a Responsible Owner As the vehicle’s 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.
✦✧✯ ✬ ✲✦ ✥ SAFETY INFORMATION ● ● ● • 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.
✦✧✯ ✬ ✲✦ ✦ SAFETY INFORMATION ● 1 ports. 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.
✦✧✯ ✬ ✲✦ ✧ SAFETY INFORMATION 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 vehicle’s 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.
✦✧✯ ✬ ✲✦ SAFETY INFORMATION 1 ● as the frame or upper front fork triple clamp (and not, for example, to rubber-mounted handlebars or turn signals, or parts that could break). Choose the location for the straps carefully so the straps will not rub against painted surfaces during transport. The suspension should be compressed somewhat by the tie-downs, if possible, so that the scooter will not bounce excessively during transport.
✦✧✯ ✬ ✲✦ ✤ DESCRIPTION EAU10410 Left view 1 2 3 4 5 6 7 1 2 11 1. 2. 3. 4. 5. 6. 7. Headlight (page 6-33) Fuel tank cap (page 3-14) Rear storage compartment (page 3-19) V-belt case air filter element (page 6-17) Owner’s tool kit (page 6-2) Fuses (page 6-31) Battery (page 6-30) 10 9 8 8. Shock absorber assembly spring preload adjusting ring (page 3-21) 9. Air filter element (left) (page 6-17) 10.Engine oil filter element (page 6-12) 11.
✦✧✯ ✬ ✲✦ ✥ DESCRIPTION EAU10420 Right view 1 4 3 2 1 2 3 4 5 6 7 8 8 9 1. 2. 3. 4. 5. 6. 7. 7 6 5 Grab bar (page 5-2) Passenger seat (page 3-17) Rider seat (page 3-17) Coolant reservoir (page 6-16) Radiator (page 6-16) Centerstand (page 6-28) Air filter element (right) (page 6-17) 8.
✦✧✯ ✬ ✲✦ ✦ DESCRIPTION EAU10430 Controls and instruments 1 2 3 4 5 6 7 8 2 3 4 5 6 7 12 1. 2. 3. 4. 5. 6. 7. Rear brake lever (page 3-12) Left handlebar switches (page 3-10) Rear brake lock lever (page 3-12) Speedometer (page 3-5) Multi-function display (page 3-5) Tachometer (page 3-5) Right handlebar switches (page 3-10) 11 10 9 8. Front brake lever (page 3-11) 9. Throttle grip (page 6-20) 10.Front storage compartment B (page 3-19) 11.
✦✧✯ ✬ ✲✦ ✤ INSTRUMENT AND CONTROL FUNCTIONS EAU10977 Immobilizer system 1 2 3 4 5 6 7 8 9 ● an immobilizer system indicator light (See page 3-4.) The key with the red bow is used to register codes in each standard key. Since re-registering is a difficult process, take the vehicle along with all three keys to a Yamaha dealer to have them re-registered. Do not use the key with the red bow for driving. It should only be used for re-registering the standard keys.
✦✧✯ ✬ ✲✦ ✥ INSTRUMENT AND CONTROL FUNCTIONS switch as they may cause signal interference. EAU10472 Main switch/steering lock cense plate light and auxiliary lights come on, and the engine can be started. The key cannot be removed. TIP The headlights come on automatically when the engine is started and stay on until the key is turned to “OFF” or the sidestand is moved down.
✦✧✯ ✬ ✲✦ ✦ INSTRUMENT AND CONTROL FUNCTIONS 1 2 3 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. EAU10941 6 7 8 (Parking) The steering is locked, and the taillight, license plate light and auxiliary lights are on. The hazard lights and turn signal lights can be turned on, but all other electrical systems are off. The key can be removed.
✦✧✯ ✬ ✲✦ ✧ INSTRUMENT AND CONTROL FUNCTIONS EAU43032 ABS warning light “ models) ABS ” (for ABS ECA10831 NOTICE If the ABS warning light comes on or flashes while riding, the ABS may not work correctly. If this occurs, have a Yamaha dealer check the electrical circuit. See page 3-13 for an explanation of the ABS. The electrical circuit of the warning light can be checked by setting the engine stop switch to “ ” and turning the key to “ON”.
✦✧✯ ✬ ✲✦ INSTRUMENT AND CONTROL FUNCTIONS EAU11601 Speedometer EAU11872 Tachometer EAU3413B Multi-function display EWA12312 1 1 2 1 2 3 4 5 6 7 8 1. Speedometer The speedometer shows the riding speed. When the key is turned to “ON”, the speedometer needle will sweep once across the speed range and then return to zero in order to test the electrical circuit. 1. Tachometer 2.
✦✧✯ ✬ ✲✦ ✩ INSTRUMENT AND CONTROL FUNCTIONS 1 2 3 4 ● ● ● ● ● a self-diagnosis device a clock an ambient temperature display an oil change indicator a V-belt replacement indicator TIP ● 1. V-belt replacement indicator “V-BELT” 2. Fuel level warning indicator “ ” 3. Coolant temperature warning indicator “ ” 4.
✦✧✯ ✬ ✲✦ ✪ INSTRUMENT AND CONTROL FUNCTIONS self automatically and the display will return to the prior mode after refueling and traveling 5 km (3 mi). 1 2 3 4 5 6 7 8 9 page 6-37.) TIP The display cannot be changed back to “Trip F” after pushing the “RESET” button. Fuel meter With the key in the “ON” position, the fuel meter indicates the amount of fuel in the fuel tank. The display segments of the fuel meter disappear towards “E” (Empty) as the fuel level decreases.
✦✧✯ ✬ ✲✦ ✫ INSTRUMENT AND CONTROL FUNCTIONS 1. Turn the key to “ON” and make sure that the engine stop switch is set to “ ”. 2. If the indicator does not come on, have a Yamaha dealer check the electrical circuit. Self-diagnosis device This model is equipped with a self-diagnosis device for various electrical circuits. If a problem is detected in any of those circuits, the multi-function display will indicate an error code.
✦✧✯ ✬ ✲✦ ✬ INSTRUMENT AND CONTROL FUNCTIONS 1 2 3 4 5 6 7 8 9 5. Push the “SELECT” button and then release it to start the clock. Pushing the “SELECT” button for at least two seconds switches the clock display to the ambient temperature display. crossings, etc. TIP ● ● Anti-theft alarm (optional) This model can be equipped with an optional anti-theft alarm by a Yamaha dealer. Contact a Yamaha dealer for more information.
✦✧✯ ✬ ✲✦ ✤✣ INSTRUMENT AND CONTROL FUNCTIONS EAU12348 Handlebar switches Right position. To cancel the turn signal lights, push the switch in after it has returned to the center position. 1 Left 1 EAU12500 Horn switch “ ” Press this switch to sound the horn. 2 2 3 3 4 1. 2. 3. 4. Pass switch “PASS” Dimmer switch “ / ” Turn signal switch “ / ” Horn switch “ ” 1. Engine stop switch “ 2. Hazard switch “ ” 3.
✦✧✯ ✬ ✲✦ ✤✤ INSTRUMENT AND CONTROL FUNCTIONS this does not indicate a malfunction. EAU44910 Front brake lever EAU12733 1 2 3 4 5 6 7 8 9 Hazard switch “ ” With the key in the “ON” or “ ” position, use this switch to turn on the hazard lights (simultaneous flashing of all turn signal lights). The hazard lights are used in case of an emergency or to warn other drivers when your vehicle is stopped where it might be a traffic hazard.
✦✧✯ ✬ ✲✦ ✤✥ INSTRUMENT AND CONTROL FUNCTIONS EAU44921 Rear brake lever with the “ ver. ” mark on the rear brake le- EAU12962 Rear brake lock lever 2 1 1 4 2 3 3 1. 2. 3. 4. Rear brake lever Brake lever position adjusting dial “ ” mark Distance between brake lever and handlebar grip 1. Rear brake lock lever The rear brake lever is located at the left handlebar grip. To apply the rear brake, pull this lever toward the handlebar grip.
✦✧✯ ✬ ✲✦ ✤✦ INSTRUMENT AND CONTROL FUNCTIONS ● 1 rear brake lock lever is applied. To provide secure locking of the rear wheel, apply the rear brake lever first before moving the rear brake lock lever to the left. EWA12361 2 3 4 5 WARNING Never move the rear brake lock lever to the left while the vehicle is moving, otherwise loss of control or an accident may result. Make sure that the vehicle is stopped before moving the rear brake lock lever to the left.
✦✧✯ ✬ ✲✦ ✤✧ INSTRUMENT AND CONTROL FUNCTIONS wheel hubs may be damaged, resulting in improper performance of the ABS system. EAU13163 Fuel tank cap To open the fuel tank cap 1. Open the lid by sliding the lever forward, and then pull the lever up. 2 1 1 3 1. Fuel tank cap 1 4 2 1. Front wheel hub To install the fuel tank cap 1. Align the match marks, insert the fuel tank cap into the tank opening, and then push down on the cap. 1. Lid 2. Opening lever 1 5 6 2.
✦✧✯ ✬ ✲✦ ✤ INSTRUMENT AND CONTROL FUNCTIONS the original position, and then remove it. 3. Close the lid. EWA11121 1 2 3 4 5 6 7 8 9 WARNING Be sure that the fuel tank cap is properly installed and locked before riding the scooter. Leaking fuel is a fire hazard. EAU13221 Fuel Make sure there is sufficient gasoline in the tank. EWA10881 WARNING Gasoline and gasoline vapors are extremely flammable.
✦✧✯ ✬ ✲✦ ✤✩ INSTRUMENT AND CONTROL FUNCTIONS your eyes, see your doctor immediately. If gasoline spills on your skin, wash with soap and water. If gasoline spills on your clothing, change your clothes. and reduce maintenance costs. EAU13445 Catalytic converters This vehicle is equipped with catalytic converters in the exhaust system. EWA10862 WARNING The exhaust system is hot after operation.
✦✧✯ ✬ ✲✦ ✤✪ INSTRUMENT AND CONTROL FUNCTIONS pairable damage to the catalytic converter. 1 EAU34140 Seats 1 1 2 2 3 1. Open. 4 TIP Do not push inward when turning the key. 1. Rider seat 2. Passenger seat 5 Rider seat 3. Fold the rider seat up. 6 7 8 To open the rider seat 1. Place the scooter on the centerstand. 2. Insert the key into the main switch, and then turn it counterclockwise. 1 9 1.
✦✧✯ ✬ ✲✦ ✤✫ INSTRUMENT AND CONTROL FUNCTIONS To close the rider seat 1. Fold the rider seat down, and then push it down to lock it in place. 2. Remove the key from the main switch if the scooter will be left unattended. TIP Make sure that the rider seat is properly secured before riding. To install the passenger seat 1. Insert the projections on the passenger seat into the holders as shown, place the passenger seat in the original position, and then install the bolt.
✦✧✯ ✬ ✲✦ ✤✬ INSTRUMENT AND CONTROL FUNCTIONS EAU14494 Storage compartments and then remove it. 1 1 2 1 1 3 1. Bolt 4 5 6 3. Slide the rider seat forward or backward to the desired position. 4. Install bolts and securely tighten them. 5. Close the rider seat. Front storage compartment A To open the storage compartment when it is locked, insert the key in the lock, turn it counterclockwise, and then grasp the lock while pushing the button in.
✦✧✯ ✬ ✲✦ ✥✣ INSTRUMENT AND CONTROL FUNCTIONS 1 ● 1 being washed, wrap any articles stored in the compartment in a plastic bag. Do not keep anything valuable or breakable in the storage compartment. ECA11100 2 1. Storage compartment opening lever 2. Lid To close the storage compartment, push the lid into the original position. WARNING! Do not store heavy items in this compartment.
✦✧✯ ✬ ✲✦ ✥✤ INSTRUMENT AND CONTROL FUNCTIONS dicator on the shock absorber. Use the spring preload adjusting tool included in the owner’s tool kit to make this adjustment. EAU14892 Adjusting the shock absorber assemblies ● EWA10210 1 2 3 4 WARNING Always adjust both shock absorber assemblies equally, otherwise poor handling and loss of stability may result. Each shock absorber assembly is equipped with a spring preload adjusting ring.
✦✧✯ ✬ ✲✦ ✥✥ INSTRUMENT AND CONTROL FUNCTIONS function properly. EAU45051 Ignition circuit cut-off system The ignition circuit cut-off system (comprising the sidestand switch and brake light switches) has the following functions. ● It prevents starting when the sidestand is up, but neither brake is applied. ● It prevents starting when either brake is applied, but the sidestand is still down. ● It cuts the running engine when the sidestand is moved down.
✦✧✯ ✬ ✲✦ ✥✦ INSTRUMENT AND CONTROL FUNCTIONS 1 2 3 4 5 6 7 8 WARNING With the engine turned off: 1. Move the sidestand down. 2. Make sure that the engine stop switch is turned on. 3. Turn the key on. 4. Keep the front or rear brake applied. 5. Push the start switch. Does the engine start? NO If a malfunction is noted, have a Yamaha dealer check the system before riding. The sidestand switch may not be working correctly.
✦✧✯ ✬ ✲✦ ✤ FOR YOUR SAFETY – PRE-OPERATION CHECKS EAU15596 Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection and maintenance procedures and schedules described in the Owner’s Manual. EWA11151 WARNING Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage. Do not operate the vehicle if you find any problem.
✦✧✯ ✬ ✲✦ ✥ FOR YOUR SAFETY – PRE-OPERATION CHECKS ITEM 1 Rear brake 2 Throttle grip 3 4 Wheels and tires 5 Brake levers 6 Centerstand, sidestand Chassis fasteners 7 Instruments, lights, signals and switches 8 Sidestand switch CHECKS • • • • • • • • • • • • • • • • • • • • • • • • Check operation. If soft or spongy, have Yamaha dealer bleed hydraulic system. Check brake pads for wear. Replace if necessary. Check fluid level in reservoir.
✦✧✯ ✬ ✲✦ ✤ OPERATION AND IMPORTANT RIDING POINTS EAU15951 EAU48020 EAU36515 Starting the engine Read the Owner’s Manual carefully to become familiar with all controls. If there is a control or function you do not understand, ask your Yamaha dealer. EWA10271 WARNING Failure to familiarize yourself with the controls can lead to loss of control, which could cause an accident or injury. TIP This model is equipped with a lean angle sensor to stop the engine in case of a turnover.
✦✧✯ ✬ ✲✦ ✥ OPERATION AND IMPORTANT RIDING POINTS 3-3, 3-5, 3-7 or 3-8 for the corresponding warning light, indicator light or indicator circuit check. 1 2 3 4 5 6 7 8 9 2. Close the throttle completely. 3. Start the engine by pushing the start switch while applying the front or rear brake. If the engine does not start, release the start switch, wait a few seconds, and then try again. Each starting attempt should be as short as possible to preserve the battery.
✦✧✯ ✬ ✲✦ ✦ OPERATION AND IMPORTANT RIDING POINTS EAU16793 Braking Front EAU16820 Tips for reducing fuel consumption EWA10300 ● ● ● ● WARNING 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 construction sites, and manhole covers become extremely slippery when wet. Therefore, slow down when approaching such areas and cross them with caution.
✦✧✯ ✬ ✲✦ ✧ OPERATION AND IMPORTANT RIDING POINTS EAU16841 Engine break-in 1 2 3 4 5 There is never a more important period in the life of your engine than the period between 0 and 1600 km (1000 mi). For this reason, you should read the following material carefully. Since the engine is brand new, do not put an excessive load on it for the first 1600 km (1000 mi). The various parts in the engine wear and polish themselves to the correct operating clearances.
✦✧✯ ✬ ✲✦ ✤ PERIODIC MAINTENANCE AND ADJUSTMENT EAU17243 Periodic inspection, adjustment, and lubrication will keep your vehicle in the safest and most efficient condition possible. Safety is an obligation of the vehicle owner/operator. The most important points of vehicle inspection, adjustment, and lubrication are explained on the following pages. The intervals given in the periodic maintenance charts should be simply considered as a general guide under normal riding conditions.
✦✧✯ ✬ ✲✦ ✥ PERIODIC MAINTENANCE AND ADJUSTMENT EAU17502 Owner’s tool kit 1 TIP If you do not have the tools or experience required for a particular job, have a Yamaha dealer perform it for you. 2 2 1 3 4 5 6 7 8 9 1. Storage compartment mat 2. Owner’s tool kit The owner’s tool kit is located inside the rear storage compartment. (See page 3-19.) Pull up the storage compartment mat, and then remove the owner’s tool kit.
✦✧✯ ✬ ✲✦ ✦ PERIODIC MAINTENANCE AND ADJUSTMENT EAU46861 TIP ● ● ● The annual checks must be performed every year, except if a kilometer-based maintenance, or for the UK, a mileage-based maintenance, is performed instead. From 50000 km (30000 mi), repeat the maintenance intervals starting from 10000 km (6000 mi). Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
✦✧✯ ✬ ✲✦ ✧ PERIODIC MAINTENANCE AND ADJUSTMENT EAU1770C General maintenance and lubrication chart ODOMETER READING NO. ITEM CHECK OR MAINTENANCE JOB 1 1 2 2 3 3 * 4 4 * Air filter elements V-belt case air filter element Front brake Rear brake 5 5 * Brake hoses 6 6 Rear brake lock 7 7 * Wheels 8 8 * Tires 9 9 * Wheel bearings 10 * Steering bearings 1000 km (600 mi) 10000 km (6000 mi) 30000 km (18000 mi) √ • Replace. • Clean.
✦✧✯ ✬ ✲✦ PERIODIC MAINTENANCE AND ADJUSTMENT ODOMETER READING NO.
✦✧✯ ✬ ✲✦ ✩ PERIODIC MAINTENANCE AND ADJUSTMENT ODOMETER READING NO. 1 2 3 24 ITEM Moving parts and cables 25 * Throttle grip 26 * Lights, signals and switches CHECK OR MAINTENANCE JOB 1000 km (600 mi) • Lubricate. • Check operation. • Check throttle grip free play, and adjust if necessary. • Lubricate cable and grip housing. • Check operation. • Adjust headlight beam.
✦✧✯ ✬ ✲✦ ✪ PERIODIC MAINTENANCE AND ADJUSTMENT EAU18712 Removing and installing cowlings and panels 1 1 2 The cowlings and panels shown need to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time a cowling or panel needs to be removed and installed. 1 2 3 2 3 1. Cowling D 1. Quick fastener 2. Cowling A 4 EAU34282 Cowling A 5 1. 2. 3. 4. 5.
✦✧✯ ✬ ✲✦ ✫ PERIODIC MAINTENANCE AND ADJUSTMENT To install the cowling Place the cowling in the original position, and then install the screws. Cowling B To remove the cowling 1. Remove the screws. 1 1 2 3 4 To remove one of the cowlings 1. Remove cowlings A and B. 2. Remove the passenger seat. (See page 3-17.) 3. Remove the grab bar by removing the grab bar bolts and collars. 2 5 6 1 Cowlings C and D 1. Cowling B 2. Screw 1 2 1 2 1 2 1. Screw access cover 5.
✦✧✯ ✬ ✲✦ ✬ PERIODIC MAINTENANCE AND ADJUSTMENT screws. 2 1 1 3 1. Left floorboard mat 2. Install the screw access cover by placing it in its original position. 3. Install the grab bar by installing the collars and grab bar bolts. 2. Remove the cowling screws. Tightening torque: Grab bar bolt: 23 Nm (2.3 m·kgf, 16.6 ft·lbf) To remove the cowling 1. Pull up the left floorboard mats as shown. 4 To install the cowling 1.
✦✧✯ ✬ ✲✦ ✤✣ PERIODIC MAINTENANCE AND ADJUSTMENT the original position. EAU34173 Checking the spark plug EAU47890 2 Panel A 1 2 To remove the panel Remove the screws, and then pull the panel outward. 3 1 The spark plug is an important engine component, which is easy to check. Since heat and deposits will cause any spark plug to slowly erode, the spark plug should be removed and checked in accordance with the periodic maintenance and lubrication chart.
✦✧✯ ✬ ✲✦ ✤✤ PERIODIC MAINTENANCE AND ADJUSTMENT necessary. 2 Specified spark plug: NGK/CR7E 1 3 3. Measure the spark plug gap with a wire thickness gauge and, if necessary, adjust the gap to specification. 1 2 3 1. Storage compartment mat 2. Spark plug cover 3. Screw 3. Remove the spark plug cap. 1 1. Spark plug cap 4. Remove the spark plug as shown, with the spark plug wrench included in the owner’s tool kit. 1. Spark plug wrench 4 To check the spark plug 1.
✦✧✯ ✬ ✲✦ ✤✥ PERIODIC MAINTENANCE AND ADJUSTMENT 2. Install the spark plug with the spark plug wrench, and then tighten it to the specified torque. 1 EAU34187 Engine oil and oil filter element 1 Tightening torque: Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf) 2 3 4 5 6 7 TIP If a torque wrench is not available when installing a spark plug, a good estimate of the correct torque is 1/4–1/2 turn past finger tight.
✦✧✯ ✬ ✲✦ ✤✦ PERIODIC MAINTENANCE AND ADJUSTMENT 1 2 3 4 1. 2. 3. 4. 2. Start the engine, warm it up for several minutes, and then turn it off. 3. Place an oil pan under the engine to collect the used oil. 4. Remove the engine oil filler cap, the engine oil drain bolt and its gasket to drain the oil from the crankcase. Engine oil filler cap Dipstick Maximum level mark Tip of the engine oil dipstick 4.
✦✧✯ ✬ ✲✦ ✤✧ PERIODIC MAINTENANCE AND ADJUSTMENT 1 2 3 4 1 3 5 6 1. 2. 3. 4. Oil filter element cover O-ring Compression spring Oil filter element 7. Install the compression spring and oil filter element cover by installing the bolts, then tightening them to the specified torque. 7 8 Tightening torque: Engine oil drain bolt: 20 Nm (2.0 m·kgf, 14.5 ft·lbf) ● 9. Refill with the specified amount of the recommended engine oil, and then install and tighten the oil filler cap.
✦✧✯ ✬ ✲✦ ✤ PERIODIC MAINTENANCE AND ADJUSTMENT ton, and the oil change indicator will go off. TIP If the engine oil is changed before the oil change indicator comes on (i.e. before the periodic oil change interval has been reached), the indicator must be reset after the oil change for the next periodic oil change to be indicated at the correct time.
✦✧✯ ✬ ✲✦ ✤✩ PERIODIC MAINTENANCE AND ADJUSTMENT tire or wheel.[EWA11311] 1 2 3 4 5 Recommended final transmission oil: See page 8-1. Oil quantity: 0.25 L (0.26 US qt, 0.22 Imp.qt) 8. Install the final transmission oil filler 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. EAU20070 Coolant EAU34193 To check the coolant level 1.
✦✧✯ ✬ ✲✦ ✤✪ PERIODIC MAINTENANCE AND ADJUSTMENT TIP The coolant should be between the minimum and maximum level marks. 5. If the coolant is at or below the minimum level mark, open the coolant reservoir cap, add coolant to the maximum level mark, and then close the coolant reservoir cap. WARNING! Remove only the coolant reservoir cap. Never attempt to remove the radiator cap when the engine is hot.
✦✧✯ ✬ ✲✦ ✤✫ PERIODIC MAINTENANCE AND ADJUSTMENT Left 3. Pull the air filter element out. 1 1 2 2 1 5 1 3 3 4 Left 1 3 1. Screw 2. Air filter case cover 3. Rubber cap 1. Air filter element Right Right To clean the air filter check hoses 1. Check the hose at the bottom of both air filter cases for accumulated dirt or water. 1 6 2 1 7 3 8 1 9 1. Screw 2. Air filter case cover 3. Rubber cap stalling the screws.
✦✧✯ ✬ ✲✦ ✤✬ PERIODIC MAINTENANCE AND ADJUSTMENT Left 1 Cleaning the V-belt case air filter element 1. Remove cowling E. (See page 6-7.) 2. Remove panel A. (See page 6-7.) 3. Remove the left air filter case cover. 4. Remove the V-belt air filter case cover by removing the screws. 1 1 2 2 3 1. Screw 2. V-belt case air filter element 1. Air filter check hose 2 Right 1 6.
✦✧✯ ✬ ✲✦ ✥✣ PERIODIC MAINTENANCE AND ADJUSTMENT 1 2 3 necessary. 8. Install the V-belt case air filter element by installing the screws. NOTICE: Make sure that the V-belt filter element is properly seated in its case.[ECA12941] 9. Install the V-belt air filter case cover by installing the screws. 10. Install the left air filter case cover. 11. Install the panel. 12. Install the cowling. EAU21384 Checking the throttle grip free play 1 4 5 6 7 1.
✦✧✯ ✬ ✲✦ ✥✤ PERIODIC MAINTENANCE AND ADJUSTMENT EAU21875 Tires To maximize the performance, durability, and safe operation of your vehicle, note the following points regarding the specified tires. Tire air pressure The tire air pressure should be checked and, if necessary, adjusted before each ride. EWA10503 WARNING Operation of this vehicle with improper tire pressure may cause severe injury or death from loss of control.
✦✧✯ ✬ ✲✦ ✥✥ PERIODIC MAINTENANCE AND ADJUSTMENT 1 2 3 4 5 6 Tire information This model is equipped with tubeless tires. After extensive tests, only the tires listed below have been approved for this model by Yamaha Motor Co., Ltd. Front tire: Size: 120/80-14M/C 58S Manufacturer/model: IRC/MB67 DUNLOP/D305FL Rear tire: Size: 150/70-13M/C 64S Manufacturer/model: IRC/MB67 DUNLOP/D305L ● Yamaha dealer, who has the necessary professional knowledge and experience to do so.
✦✧✯ ✬ ✲✦ ✥✦ PERIODIC MAINTENANCE AND ADJUSTMENT EAU50860 Checking the front and rear brake lever free play brake lever ends. If there is free play, have a Yamaha dealer inspect the brake system. EWA14211 Front 1 1 2 1. Valve stem nut 2. Valve stem locknut Tightening torques: Valve stem nut: 2.0 Nm (0.2 m·kgf, 1.4 ft·lbf) Valve stem locknut: 3.0 Nm (0.3 m·kgf, 2.2 ft·lbf) 1.
✦✧✯ ✬ ✲✦ ✥✧ PERIODIC MAINTENANCE AND ADJUSTMENT EAU33473 Adjusting the rear brake lock lever cable To decrease the rear brake lock lever cable length, turn the adjusting nut in direction (b). EWA10650 1 2 1 2 (a) WARNING If proper adjustment cannot be obtained as described, have a Yamaha dealer make this adjustment.
✦✧✯ ✬ ✲✦ ✥ PERIODIC MAINTENANCE AND ADJUSTMENT indicator grooves have almost disappeared, have a Yamaha dealer replace the brake pads as a set. EAU34210 Rear brake pads Have a Yamaha dealer check each rear brake pad for damage and measure the lining thickness and if necessary, replace them as a set. EAU40260 Checking the brake fluid level Front brake 1 1. Minimum level mark Rear brake 1 ing it to become ineffective.
✦✧✯ ✬ ✲✦ ✥✩ PERIODIC MAINTENANCE AND ADJUSTMENT 1 ● 2 3 4 5 ● cantly lower the boiling point of the fluid and may result in vapor lock, and dirt may clog the ABS hydraulic unit valves. Brake fluid may deteriorate painted surfaces or plastic parts. Always clean up spilled fluid immediately. As the brake pads wear, it is normal for the brake fluid level to gradually go down. However, if the brake fluid level goes down suddenly, have a Yamaha dealer check the cause.
✦✧✯ ✬ ✲✦ ✥✪ PERIODIC MAINTENANCE AND ADJUSTMENT EAU23114 Checking and lubricating the throttle grip and cable The operation of the throttle grip should be checked before each ride. In addition, the cable should be lubricated by a Yamaha dealer at the intervals specified in the periodic maintenance chart. The throttle cable is equipped with a rubber cover. Make sure that the cover is securely installed.
✦✧✯ ✬ ✲✦ ✥✫ PERIODIC MAINTENANCE AND ADJUSTMENT EAU23213 Checking and lubricating the centerstand and sidestand 1 2 3 EWA10741 WARNING If the centerstand or sidestand does not move up and down smoothly, have a Yamaha dealer check or repair it. Otherwise, the centerstand or sidestand could contact the ground and distract the operator, resulting in a possible loss of control.
✦✧✯ ✬ ✲✦ ✥✬ PERIODIC MAINTENANCE AND ADJUSTMENT EAU45511 Checking the steering ECA10590 NOTICE If any damage is found or the front fork does not operate smoothly, have a Yamaha dealer check or repair it. Worn or loose steering bearings may cause danger. Therefore, the operation of the steering must be checked as follows at the intervals specified in the periodic maintenance and lubrication chart. 1. Place the vehicle on the centerstand.
✦✧✯ ✬ ✲✦ ✦✣ PERIODIC MAINTENANCE AND ADJUSTMENT EAU34225 Battery 2 1 1 2 3 3 4 5 6 7 8 9 1. Negative battery lead (black) 2. Battery 3. Positive battery lead (red) ● The battery is located behind cowling A. (See page 6-7.) This model is equipped with a VRLA (Valve Regulated Lead Acid) battery. There is no need to check the electrolyte or to add distilled water. However, the battery lead connections need to be checked and, if necessary, tightened.
✦✧✯ ✬ ✲✦ ✦✤ PERIODIC MAINTENANCE AND ADJUSTMENT stallation. NOTICE: When installing the battery, be sure the key is turned to “OFF”, then connect the positive lead before connecting the negative lead.[ECA16840] 4. After installation, make sure that the battery leads are properly connected to the battery terminals. ECA16530 NOTICE Always keep the battery charged. Storing a discharged battery can cause permanent battery damage.
✦✧✯ ✬ ✲✦ ✦✥ PERIODIC MAINTENANCE AND ADJUSTMENT For YP400 7 1 2 For YP400A 1 2 3 4 5 6 3 4 5 6 7 6 5 4 3 2 1. 2. 3. 4. 5. For YP400A Ignition fuse Signaling system fuse Headlight fuse Radiator fan fuse Backup fuse (for clock and rear storage compartment light) 6. Fuel injection system fuse 7. Spare fuse 1. 2. 3. 4. 5. 6. 1 2 3 4 5 6 1 Spare main fuse Main fuse Hazard fuse ABS control unit fuse ABS solenoid fuse ABS motor fuse 1. 2. 3. 4. 5.
✦✧✯ ✬ ✲✦ ✦✦ PERIODIC MAINTENANCE AND ADJUSTMENT EAU34241 Specified fuses: Main fuse: 40.0 A Ignition fuse: 10.0 A Signaling system fuse: 10.0 A Headlight fuse: 20.0 A Hazard fuse: 10.0 A Radiator fan fuse: 10.0 A Fuel injection system fuse: 10.0 A ABS control unit fuse: YP400A 10.0 A ABS motor fuse: YP400A 30.0 A ABS solenoid fuse: YP400A 20.0 A Backup fuse: 10.0 A EAU24181 Replacing a headlight bulb Tail/brake light This model is equipped with halogen bulb headlights.
✦✧✯ ✬ ✲✦ ✦✧ PERIODIC MAINTENANCE AND ADJUSTMENT EAU39880 Front turn signal light 1 2 3 4 If a front turn signal light does not come on, have a Yamaha dealer check its electrical circuit or replace the bulb. EAU34263 Replacing a rear turn signal light bulb 1. Place the scooter on the centerstand. 2. Remove cowling C for replacing the left turn signal light bulb or cowling D for replacing the right turn signal light bulb. (See page 6-7.) 3.
✦✧✯ ✬ ✲✦ ✦ PERIODIC MAINTENANCE AND ADJUSTMENT EAU47900 EAU39020 Replacing the license plate light bulb Auxiliary light bulb If the auxiliary light does not come on, have a Yamaha dealer check the electrical circuit or replace the bulb. 1. Place the scooter on the centerstand. 2. Remove cowling B. (See page 6-7.) 3. Remove the license plate light cover and license plate light lens by removing the screws. 1 2 3 1. License plate light bulb 1 2 5.
✦✧✯ ✬ ✲✦ ✦✩ PERIODIC MAINTENANCE AND ADJUSTMENT EAU25881 Troubleshooting 1 2 3 4 5 6 7 8 9 Although Yamaha scooters receive a thorough inspection before shipment from the factory, trouble may occur during operation. Any problem in the fuel, compression, or ignition systems, for example, can cause poor starting and loss of power. The following troubleshooting charts represent quick and easy procedures for checking these vital systems yourself.
✦✧✯ ✬ ✲✦ ✦✪ PERIODIC MAINTENANCE AND ADJUSTMENT EAU42702 Troubleshooting charts Starting problems or poor engine performance 1. Fuel There is enough fuel. Check the compression. There is no fuel. Supply fuel. Check the fuel level in the fuel tank. The engine does not start. Check the compression. 2 3 2. Compression There is compression. Check the ignition. 4 Operate the electric starter. There is no compression. 3. Ignition Have a Yamaha dealer check the vehicle.
✦✧✯ ✬ ✲✦ ✦✫ PERIODIC MAINTENANCE AND ADJUSTMENT Engine overheating EWAT1040 ● 1 ● 2 WARNING Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled. Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape.
✦✧✯ ✬ ✲✦ ✤ SCOOTER CARE AND STORAGE EAU37833 Matte color caution EAU26094 Care ECA15192 NOTICE Some models are equipped with matte colored finished parts. Be sure to consult a Yamaha dealer for advice on what products to use before cleaning the vehicle. Using a brush, harsh chemical products or cleaning compounds when cleaning these parts will scratch or damage their surface. Wax also should not be applied to any matte colored finished parts.
✦✧✯ ✬ ✲✦ ✥ SCOOTER CARE AND STORAGE 1 ● 2 3 4 5 ● 6 7 8 9 ● be used. Be sure to rinse off any detergent residue using plenty of water, as it is harmful to plastic parts. Do not use any harsh chemical products on plastic parts. Be sure to avoid using cloths or sponges which have been in contact with strong or abrasive cleaning products, solvent or thinner, fuel (gasoline), rust removers or inhibitors, brake fluid, antifreeze or electrolyte.
✦✧✯ ✬ ✲✦ ✦ SCOOTER CARE AND STORAGE ed, surfaces. 4. Use spray oil as a universal cleaner to remove any remaining dirt. 5. Touch up minor paint damage caused by stones, etc. 6. Wax all painted surfaces. 7. Let the scooter dry completely before storing or covering it. EWA10942 WARNING 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.
✦✧✯ ✬ ✲✦ ✧ SCOOTER CARE AND STORAGE 1 2 3 4 5 6 7 8 9 2. Fill up the fuel tank and add fuel stabilizer (if available) to prevent the fuel tank from rusting and the fuel from deteriorating. 3. Perform the following steps to protect the cylinder, piston rings, etc. from corrosion. a. Remove the spark plug cap and spark plug. b. Pour a teaspoonful of engine oil into the spark plug bore. c.
✦✧✯ ✬ ✲✦ ✤ SPECIFICATIONS Dimensions: Overall length: 2230 mm (87.8 in) Overall width: 780 mm (30.7 in) Overall height: 1380 mm (54.3 in) Seat height: 760 mm (29.9 in) Wheelbase: 1565 mm (61.6 in) Ground clearance: 120 mm (4.72 in) Minimum turning radius: 2600 mm (102.4 in) Weight: Curb weight: YP400 220 kg (485 lb) YP400A 223 kg (492 lb) Engine: Engine type: Liquid cooled 4-stroke, DOHC Cylinder arrangement: Single cylinder Displacement: 395 cm3 Bore × stroke: 83.0 × 73.0 mm (3.
✦✧✯ ✬ ✲✦ ✥ SPECIFICATIONS Transmission type: V-belt automatic Chassis: 1 2 Frame type: Backbone Caster angle: 27.00 ° Trail: 100 mm (3.
✦✧✯ ✬ ✲✦ ✦ SPECIFICATIONS Bulb voltage, wattage × quantity: Headlight: 12 V, 60 W/55 W × 1 Headlight: 12 V, 55 W × 1 Tail/brake light: LED Front turn signal light: 12 V, 21.0 W × 2 Rear turn signal light: 12 V, 21.0 W × 2 Auxiliary light: 12 V, 5.0 W × 2 License plate light: 12 V, 5.0 W × 1 Meter lighting: 12 V, 2.0 W × 3 High beam indicator light: 12 V, 1.4 W × 1 Turn signal indicator light: 12 V, 1.4 W × 2 Engine trouble warning light: 12 V, 1.
✦✧✯ ✬ ✲✦ ✤ CONSUMER INFORMATION EAU48611 Identification numbers 1 2 3 Record the vehicle identification number and model label information in the spaces provided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. VEHICLE IDENTIFICATION NUMBER: 4 MODEL LABEL INFORMATION: 7 EAU26500 Model label 1 1 1.
✦✧✯ ✬ ✲✦ ✥ INDEX A Front and rear brake lever free play, checking................................................ 6-23 Front and rear brake pads, checking....... 6-24 Front fork, checking................................. 6-28 Front turn signal light............................... 6-34 Fuel ......................................................... 3-15 Fuel consumption, tips for reducing .......... 5-3 Fuel tank cap........................................... 3-14 Fuses, replacing ....
✦✧✯ ✬ ✲✦ ✦ INDEX V Valve clearance ...................................... 6-20 Vehicle identification number .................... 9-1 W Wheel bearings, checking....................... 6-29 Wheels ....................................................
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✦✧✯ ✲✦ ✰ ❆❍ ✱✶✰✤✫✦ ✥ ! YAMAHA MOTOR CO., LTD. PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2010.09–0.
