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Yamaha YBR125 Custom Owner's Manual

Custom 2008
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  • Page 1 OWNER’S MANUAL YBR125 27S-F8199-E0...
  • Page 3 Yamaha a reputation for dependability. Please take the time to read this manual thoroughly, so as to enjoy all advantages of your YBR125. The owner’s manual does not only instruct you in how to operate, inspect and maintain your motorcycle, but also in how to safeguard yourself and others from trouble and injury.
  • Page 4: Important Manual Information

    This manual should be considered a permanent part of this motorcycle and should remain with it even if the motorcycle is subsequently sold. 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 motorcycle and this manual.
  • Page 5 IMPORTANT MANUAL INFORMATION EAU37230 YBR125 OWNER’S MANUAL ©2008 by Yamaha Motor Co., Ltd. 1st edition, February 2008 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd. is expressly prohibited. Printed in China.
  • Page 6: Table Of Contents

    TABLE OF CONTENTS SAFETY INFORMATION ....1-1 PRE-OPERATION CHECKS ..... 4-1 Checking the front brake lever free Pre-operation check list ....4-2 play ........... 6-17 DESCRIPTION ........2-1 Adjusting the brake pedal free Left view ..........2-1 OPERATION AND IMPORTANT play ........... 6-17 Right view ........2-2 RIDING POINTS.........
  • Page 7 TABLE OF CONTENTS Replacing the fuse ......6-28 Replacing the headlight bulb ..6-29 Replacing the tail/brake light bulb ...........6-30 Replacing a turn signal light bulb ...........6-31 Replacing the auxiliary light bulb ...........6-31 Front wheel ........6-32 Rear wheel ........6-34 Troubleshooting ......6-36 Troubleshooting chart ....6-37 MOTORCYCLE CARE AND STORAGE ..........7-1 Matte color caution ......7-1...
  • Page 8: Safety Information

    SAFETY INFORMATION EAU10281 AND/OR WHEN MADE NECES- • Ride where other motorists can SARY BY MECHANICAL CONDI- see you. Avoid riding in another MOTORCYCLES SINGLE TIONS. motorist’s blind spot. TRACK VEHICLES. THEIR SAFE USE Many accidents involve inexperi- AND OPERATION ARE DEPENDENT Safe riding enced operators.
  • Page 9 Modifications made to this motorcycle other motorists can see you. the single most critical factor in the pre- not approved by Yamaha, or the re- The posture of the operator and vention or reduction of head injuries. moval of original equipment, may ren- passenger is important for proper Always wear an approved helmet.
  • Page 10 Maximum load: been specifically designed for use on create instability due to improper 190 kg (419 lb) this motorcycle. Since Yamaha cannot weight distribution or aerody- test all other accessories that may be namic changes. If accessories When loading within this weight limit,...
  • Page 11 SAFETY INFORMATION tor and may limit control ability, Always turn the engine off before or clothing, immediately wash the therefore, such accessories are leaving the motorcycle unattended affected area with soap and water not recommended. and remove the key from the main and change your clothes.
  • Page 12: Description

    DESCRIPTION EAU10410 Left view 2,3,4 1. Headlight (page 6-29) 2. Fuse (page 6-28) 3. Battery (page 6-27) 4. Owner’s tool kit (page 6-1) 5. Shock absorber assembly spring preload adjusting ring (page 3-8) 6. Engine oil drain bolt (page 6-9) 7.
  • Page 13: Right View

    DESCRIPTION EAU10420 Right view 1. Carrier (page 3-9) 2. Air filter element (page 6-10) 3. Engine oil filler cap (page 6-9) 4. Brake pedal (page 3-6) 5. Kickstarter (page 3-8) 6. Shock absorber assembly spring preload adjusting ring (page 3-8)
  • Page 14: Controls And Instruments

    DESCRIPTION EAU10430 Controls and instruments 1. Clutch lever (page 3-5) 9. Throttle grip (page 6-12) 2. Left handlebar switches (page 3-4) 10.Fuel tank cap (page 3-6) 3. Main switch/steering lock (page 3-1) 4. Speedometer (page 3-2) 5. Fuel gauge (page 3-3) 6.
  • Page 15: Instrument And Control Functions

    INSTRUMENT AND CONTROL FUNCTIONS EAU10460 EAU10660 To unlock the steering Main switch/steering lock All electrical systems are off. The key can be removed. EAU43140 LOCK The steering is locked, and all electrical systems are off. The key can be re- moved.
  • Page 16: Indicator And Warning Lights

    This warning light comes on or flashes when an electrical circuit monitoring the engine is defective. When this occurs, have a Yamaha dealer check the self- diagnosis system. (See page 3-3 for an 1. Turn signal indicator light “ ”...
  • Page 17: Tachometer

    ECA11170 CAUTION: To prevent engine damage, be sure 1. Tachometer 1. Fuel gauge to consult a Yamaha dealer as soon 2. Tachometer red zone 2. Red zone as possible if this occurs. The electric tachometer allows the rider The fuel gauge indicates the amount of to monitor the engine speed and keep it fuel in the fuel tank.
  • Page 18: Handlebar Switches

    INSTRUMENT AND CONTROL FUNCTIONS EAU12347 EAU12400 EAU41700 Handlebar switches Dimmer switch “ ” The engine trouble warning light will Set this switch to “ ” for the high come on when the key is turned to “ON” Left beam and to “ ”...
  • Page 19: Clutch Lever

    INSTRUMENT AND CONTROL FUNCTIONS EAU12820 EAU12870 EAU12890 Clutch lever Shift pedal Brake lever 1. Clutch lever 1. Shift pedal 1. Brake lever The clutch lever is located at the left The shift pedal is located on the left The brake lever is located at the right handlebar grip.
  • Page 20: Brake Pedal

    INSTRUMENT AND CONTROL FUNCTIONS EAU12941 EAU13001 Brake pedal Fuel tank cap NOTE: The fuel tank cap cannot be installed unless the key is in the lock. In addition, the key cannot be removed if the cap is not properly installed and locked. EWA11140 WARNING Make sure that the fuel tank cap is...
  • Page 21: Fuel

    Avoid spilling fuel on the hot en- Your Yamaha engine has been de- gine. signed to use regular unleaded gaso- line with a research octane number of 91 or higher.
  • Page 22: Catalytic Converters

    INSTRUMENT AND CONTROL FUNCTIONS EAU13443 EAU43150 EAU14880 Catalytic converters Kickstarter Adjusting the shock absorber This vehicle is equipped with catalytic assemblies converters in the exhaust system. EWA10860 WARNING The exhaust system is hot after op- eration. Make sure that the exhaust system has cooled down before do- ing any maintenance work.
  • Page 23: Carrier

    Spring preload setting: Yamaha’s ignition circuit cut-off Minimum (soft): system has been designed to assist the operator in fulfilling the respon- Standard:...
  • Page 24: Ignition Circuit Cut-Off System

    INSTRUMENT AND CONTROL FUNCTIONS below and have a Yamaha dealer re- EAU43161 Ignition circuit cut-off system pair it if it does not function proper- The ignition circuit cut-off system (com- prising the sidestand switch, clutch switch and neutral switch) has the fol- lowing functions.
  • Page 25 4. Push the start switch or push the kickstarter lever down. Does the engine start? The neutral switch may be defective. The motorcycle should not be ridden until checked by a Yamaha dealer. With the engine still running: 5. Move the sidestand up. 6. Keep the clutch lever pulled.
  • Page 26: Pre-Operation Checks

    PRE-OPERATION CHECKS EAU15593 The condition of a vehicle is the owner’s responsibility. Vital components 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.
  • Page 27: Pre-Operation Check List

    • Make sure that operation is smooth. • Check cable free play. Throttle grip 6-12, 6-23 • If necessary, have Yamaha dealer adjust cable free play and lubricate cable and grip housing. • Make sure that operation is smooth. Control cables 6-23 •...
  • Page 28 Chassis fasteners — • Tighten if necessary. Instruments, lights, signals • Check operation. — and switches • Correct if necessary. • Check operation of ignition circuit cut-off system. Sidestand switch • If system is defective, have Yamaha dealer check vehicle.
  • Page 29: Operation And Important Riding Points

    When the transmission is in the neutral ground and distract the opera- position, the neutral indicator light tor, resulting in a possible loss should be on, otherwise have a of control. Yamaha dealer check the electrical cir- cuit.
  • Page 30: Shifting

    To shift the transmission into the neu- after starting, immediately stop the tral position, press the shift pedal down engine, and have a Yamaha dealer repeatedly until it reaches the end of its check the self-diagnosis system. travel, and then slightly raise it.
  • Page 31: Tips For Reducing Fuel Consumption

    OPERATION AND IMPORTANT RIDING POINTS ECA10260 EAU16810 EAU16830 Tips for reducing fuel con- Engine break-in CAUTION: sumption There is never a more important period Even with the transmission in in the life of your engine than the period Fuel consumption depends largely on the neutral position, do not between 0 and 1000 km (600 mi).
  • Page 32: Parking

    Never park in an area where there If any engine trouble should oc- are fire hazards such as grass or cur during the engine break-in other flammable materials. period, immediately have a Yamaha dealer check the vehi- cle.
  • Page 33: Periodic Maintenance And Minor Repair

    If you are not familiar with mainte- certain maintenance work correctly. nance work, have a Yamaha dealer do it for you. NOTE: If you do not have the tools or experi- ence required for a particular job, have a Yamaha dealer perform it for you.
  • Page 34: Periodic Maintenance And Lubrication Chart

    From 30000 km (17500 mi), repeat the maintenance intervals starting from 6000 km (3500 mi). Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
  • Page 35 PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING ANNUAL ITEM CHECK OR MAINTENANCE JOB 1000 km 6000 km 12000 km 18000 km 24000 km CHECK (600 mi) (3500 mi) (7000 mi) (10500 mi) (14000 mi) • Check operation and adjust brake √...
  • Page 36 PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING ANNUAL ITEM CHECK OR MAINTENANCE JOB 1000 km 6000 km 12000 km 18000 km 24000 km CHECK (600 mi) (3500 mi) (7000 mi) (10500 mi) (14000 mi) • Make sure that all nuts, bolts and √...
  • Page 37 PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING ANNUAL ITEM CHECK OR MAINTENANCE JOB 1000 km 6000 km 12000 km 18000 km 24000 km CHECK (600 mi) (3500 mi) (7000 mi) (10500 mi) (14000 mi) • Check operation and free play. •...
  • Page 38: Removing And Installing Panels

    PERIODIC MAINTENANCE AND MINOR REPAIR EAU18771 2. Pull the front of the panel out with Removing and installing pan- the key inserted in the lock, and then slide the panel forward to re- The panels shown need to be removed lease it in the rear.
  • Page 39: Checking The Spark Plug

    PERIODIC MAINTENANCE AND MINOR REPAIR 2. While pushing the panel inward, EAU19603 Checking the spark plug turn the key counterclockwise to The spark plug is an important engine the original position, remove it, and component, which is easy to check. then close the panel lock cover.
  • Page 40 4. Install the spark plug cap. ferent color, the engine could be oper- ating improperly. Do not attempt to diagnose such problems yourself. In- 1. Spark plug gap stead, have a Yamaha dealer check the vehicle. Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)
  • Page 41: Engine Oil

    PERIODIC MAINTENANCE AND MINOR REPAIR EAU37171 4. If the engine oil is at or below the Engine oil minimum level mark, add sufficient The engine oil level should be checked oil of the recommended type to before each ride. In addition, the oil raise it to the correct level.
  • Page 42: Cleaning The Air Filter Element

    PERIODIC MAINTENANCE AND MINOR REPAIR 4. Install the engine oil drain bolt, and Make sure that no foreign mate- EAU37121 Cleaning the air filter element then tighten it to the specified rial enters the crankcase. The air filter element should be cleaned torque.
  • Page 43 PERIODIC MAINTENANCE AND MINOR REPAIR EWA10430 WARNING Use only a dedicated parts cleaning solvent. To avoid the risk of fire or explosion, do not use gasoline or solvents with a low flash point. ECA15100 CAUTION: To avoid damaging the sponge ma- 1.
  • Page 44: Checking The Engine Idling Speed

    Yamaha dealer at the in- tervals specified in the periodic mainte- nance and lubrication chart. Start the engine and warm it up for sev- eral minutes at 1000–2000 r/min while...
  • Page 45: Valve Clearance

    (b). from occurring, the valve clearance regarding the specified tires. 3. Tighten the locknut. must be adjusted by a Yamaha dealer at the intervals specified in the periodic Tire air pressure maintenance and lubrication chart. The tire air pressure should be checked and, if necessary, adjusted before each ride.
  • Page 46 WARNING glass fragments in it, or if the sidewall is Because loading has an enormous cracked, have a Yamaha dealer re- impact on the handling, braking, place the tire immediately. performance and safety characteris- tics of your motorcycle, you should...
  • Page 47: Cast Wheels

    If any damage is characteristics of the vehicle The replacement of all wheel found, have a Yamaha dealer re- cannot be guaranteed. and brake related parts, includ- place the wheel. Do not attempt...
  • Page 48: Adjusting The Clutch Lever Free Play

    PERIODIC MAINTENANCE AND MINOR REPAIR EAU22032 3. If the specified clutch lever free 7. Tighten both locknuts. Adjusting the clutch lever free play could be obtained as de- play scribed above, tighten the locknut and skip the rest of the procedure, otherwise, proceed as follows.
  • Page 49: Checking The Front Brake Lever Free Play

    If proper adjustment cannot be Yamaha dealer check the brake sys- and, if necessary, adjust it as follows. obtained as described, have a tem.
  • Page 50: Checking The Shift Pedal

    Adjusting the rear brake light The operation of the shift pedal should switch be checked before each ride. If opera- tion is not smooth, have a Yamaha dealer check the vehicle. 1. Rear brake light switch 2. Rear brake light switch adjusting nut...
  • Page 51: Checking The Front Brake Pads And Rear Brake Shoes

    Observe these precautions: the wear indicator grooves. If a brake the wear limit mark, have a Yamaha pad has worn to the point that the wear dealer replace the brake shoes as a set.
  • Page 52: Changing The Brake Fluid

    Brake fluid may deteriorate paint- EAU22720 Changing the brake fluid make sure that the top of the mas- ed surfaces or plastic parts. Al- Have a Yamaha dealer change the ter cylinder is level by turning the ways clean spilled...
  • Page 53: Drive Chain Slack

    PERIODIC MAINTENANCE AND MINOR REPAIR EAU22760 3. To tighten the drive chain, turn the Drive chain slack: Drive chain slack adjusting bolt at each end of the 20.0–30.0 mm (0.79–1.18 in) The drive chain slack should be swingarm in direction (a). To loos- checked before each ride and adjusted 5.
  • Page 54: Cleaning And Lubricating The Drive Chain

    PERIODIC MAINTENANCE AND MINOR REPAIR ECA10570 EAU23022 ECA11110 Cleaning and lubricating the CAUTION: CAUTION: drive chain Improper drive chain slack will over- Do not use engine oil or any other lu- The drive chain must be cleaned and load the engine as well as other vital bricants for the drive chain, as they lubricated at the intervals specified in parts of the motorcycle and can lead...
  • Page 55: Checking And Lubricating The Cables

    If a cable is damaged maintenance chart. or does not move smoothly, have a Yamaha dealer check or replace it. Recommended lubricant: Engine oil EWA10720 Clutch lever...
  • Page 56: Checking And Lubricating The Brake Pedal

    Recommended lubricant: EWA10740 Lithium-soap-based grease WARNING If the centerstand or sidestand does not move up and down smoothly, have a Yamaha dealer check or re- pair it. Recommended lubricant: Lithium-soap-based grease 6-24...
  • Page 57: Lubricating The Swingarm Pivots

    If any damage is found or the front Check the inner tubes for scratches, fork does not operate smoothly, damage and excessive oil leakage. have a Yamaha dealer check or re- pair it. To check the operation 1. Place the vehicle on a level sur- face and hold it in an upright posi- tion.
  • Page 58: Checking The Steering

    2. Hold the lower ends of the front fork legs and try to move them for- ward and backward. If any free play can be felt, have a Yamaha dealer check or repair the steering. 6-26...
  • Page 59: Battery

    To charge the battery burns. Avoid any contact with Have a Yamaha dealer charge the bat- skin, eyes or clothing and al- tery as soon as possible if it seems to ways shield your eyes when have discharged.
  • Page 60: Replacing The Fuse

    Using a conventional battery charger will damage the battery. If you do not have access to a sealed-type (MF) battery charg- er, have a Yamaha dealer charge your battery. 1. Starter relay coupler 1. Starter relay 2. Starter relay holder 3.
  • Page 61: Replacing The Headlight Bulb

    1. Headlight bulb socket cover 4. If the fuse immediately blows 3. Remove the headlight bulb socket again, have a Yamaha dealer (together with the bulb) by turning check the electrical system. it counterclockwise. 1. Screw 2.
  • Page 62: Replacing The Tail/Brake Light Bulb

    8. Install the headlight unit by install- ing the screws. wise until it stops. 9. Have a Yamaha dealer adjust the ECA10660 CAUTION: headlight beam if necessary. Do not touch the glass part of the...
  • Page 63: Replacing A Turn Signal Light Bulb

    PERIODIC MAINTENANCE AND MINOR REPAIR EAU24202 EAU37270 Replacing a turn signal light Replacing the auxiliary light bulb bulb 1. Remove the turn signal light lens If the auxiliary light bulb burns out, re- by removing the screw. place it as follows. 1.
  • Page 64: Front Wheel

    EAU37041 To remove the front wheel EWA10820 WARNING It is advisable to have a Yamaha dealer service the wheel. Securely support the motor- cycle so that there is no danger 1. Auxiliary light bulb socket of it falling over.
  • Page 65 PERIODIC MAINTENANCE AND MINOR REPAIR 1. Rubber cap 1. Speedometer gear unit 1. Speedometer gear unit retainer 2. Wheel axle 2. Lift the wheel up between the fork 3. Insert the wheel axle, making sure 3. Washer legs. the washer on the left side is in- 5.
  • Page 66: Rear Wheel

    To remove the rear wheel smoothly. EWA10820 WARNING 7. Connect the speedometer cable. It is advisable to have a Yamaha dealer service the wheel. Securely support the motor- cycle so that there is no danger 1. Axle nut of it falling over.
  • Page 67 PERIODIC MAINTENANCE AND MINOR REPAIR 6. Remove the axle nut, and then pull 7. Take the motorcycle off the center- the wheel axle out. stand so that the rear wheel is on 7. Push the wheel forward, and then the ground. remove the drive chain from the 8.
  • Page 68: Troubleshooting

    However, should your motorcycle require any repair, take it to a Yamaha dealer, whose skilled technicians have the necessary tools, experience, and know-how to service the motorcycle properly.
  • Page 69: Troubleshooting Chart

    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.
  • Page 70: Motorcycle Care And Storage

    Rust and corrosion can develop matte colored finished parts. Be Cleaning even if high-quality components are sure to consult a Yamaha dealer for ECA10771 advice on what products to use be- used. A rusty exhaust pipe may go un- CAUTION: fore cleaning the vehicle.
  • Page 71 MOTORCYCLE CARE AND STORAGE contact with strong or abrasive scratched, use a quality plastic 1. Clean the motorcycle with cold wa- cleaning products, solvent or polishing compound after ter and a mild detergent, after the thinner, fuel (gasoline), rust re- washing.
  • Page 72: Storage

    WARNING NOTE: To prevent corrosion, avoid Make sure that there is no oil or Consult a Yamaha dealer for advice on damp cellars, stables (because what products to use. wax on the brakes or tires. of the presence of ammonia)
  • Page 73 MOTORCYCLE CARE AND STORAGE 3. Perform the following steps to pro- 4. Lubricate all control cables and the tect the cylinder, piston rings, etc. pivoting points of all levers and from corrosion. pedals as well as of the side- a. Remove the spark plug cap stand/centerstand.
  • Page 74: Specifications

    SPECIFICATIONS Dimensions: Engine oil: Fuel injection: Overall length: Type: Throttle body: 2055 mm (80.9 in) SAE 10W-30, SAE 10W-40, SAE 15W-40, Manufacturer: Overall width: SAE 20W-40 or SAE 20W-50 MIKUNI 845 mm (33.3 in) Type/quantity: Overall height: AC26-6/1 -20 -10 10 20 30 40 50 ˚C 1125 mm (44.3 in) Spark plug (s):...
  • Page 75 SPECIFICATIONS 4th: Front: Front suspension: 23/22 (1.045) 175 kPa (1.75 kgf/cm², 25 psi) Type: 5th: Rear: Telescopic fork 21/24 (0.875) 200 kPa (2.00 kgf/cm², 29 psi) Spring/shock absorber type: Chassis: Loading condition: Coil spring/oil damper 90–190 kg (198–419 lb) Frame type: Wheel travel: Front: Diamond...
  • Page 76 SPECIFICATIONS Rear turn signal light: 12 V, 10.0 W × 2 Auxiliary light: 12 V, 5.0 W × 1 Meter lighting: 12 V, 1.7 W × 4 Neutral indicator light: 14 V, 3.0 W × 1 High beam indicator light: 14 V, 3.0 W ×...
  • Page 77: Consumer Information

    Record the key identification number, vehicle identification number and mod- el label information in the spaces pro- vided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehi- cle is stolen. KEY IDENTIFICATION NUMBER: 1.
  • Page 78 1. Model label The model label is affixed to the frame behind panel A. (See page 6-6.) Record the information on this label in the space provided. This information will be needed when ordering spare parts from a Yamaha dealer.
  • Page 79 INDEX Air filter element, cleaning ....6-10 Front brake lever free play, checking ..6-17 Rear brake light switch, adjusting ..6-18 Auxiliary light bulb, replacing ....6-31 Front fork, checking.......6-25 Fuel ............3-7 Safety information........1-1 Fuel consumption, tips for reducing ..5-3 Battery ..........
  • Page 80 INDEX Wheel bearings, checking..... 6-26 Wheel (front) ......... 6-32 Wheel (rear) .......... 6-34 Wheels ..........6-15...
  • Page 82 YAMAHA MOTOR CO., LTD. PRINTED IN CHINA 2008.02-0.3×2 CR...