5RS-9-E2_hyoushi 9/4/03 9:23 AM Page 1 OWNER’S MANUAL TW125 YAMAHA MOTOR CO., LTD. PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2003.9–0.
✹✺✬✲✥ ✤ INTRODUCTION EAU10100 Welcome to the Yamaha world of motorcycling! As the owner of the TW125, 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 TW125.
✹✺✬✲✥ ✤ IMPORTANT MANUAL INFORMATION EAU10150 Particularly important information is distinguished in this manual by the following notations: The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Failure to follow WARNING instructions could result in severe injury or death to the motorcycle operator, a bystander, or a person inspecting or repairing the motorcyWARNING cle.
✹✺✬✲✥ ✥ IMPORTANT MANUAL INFORMATION EAU10200 TW125 OWNER’S MANUAL ©2003 by Yamaha Motor Co., Ltd. 1st edition, August 2003 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 Ignition circuit cut-off system ...3-11 DESCRIPTION .............................2-1 Left view .....................................2-1 Right view...................................2-2 Controls and instruments ...........2-3 PRE-OPERATION CHECKS ........4-1 Pre-operation check list ............4-2 INSTRUMENT AND CONTROL FUNCTIONS .................................3-1 Main switch ...............................
✹✺✬✲✥ ✥ TABLE OF CONTENTS Checking and lubricating the brake and shift pedals ...........6-24 Checking and lubricating the brake and clutch levers .........6-24 Checking and lubricating the sidestand ...............................6-25 Lubricating the rear suspension ............................6-25 Checking the front fork ............6-25 Checking the steering .............6-26 Checking the wheel bearings ................................6-27 Battery ................................
✹✺✬✲✥ ✤ SAFETY INFORMATION EAU10310 1 MOTORCYCLES 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 MOTORCYCLE. HE OR SHE SHOULD: ● OBTAIN THOROUGH INSTRUCTIONS FROM A COMPETENT SOURCE ON ALL ASPECTS OF MOTORCYCLE OPERATION. THE WARNINGS ● OBSERVE AND MAINTENANCE REQUIREMENTS IN THE OWNER’S MANUAL.
✹✺✬✲✥ ✥ SAFETY INFORMATION undercornering (insufficient lean angle for the speed). 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.
✹✺✬✲✥ ✦ SAFETY INFORMATION 1 not exceed the maximum load limit of 180 kg (397 lb) . When loading within this weight limit, keep the following in mind: ● Cargo and accessory weight should be kept as low and close to the motorcycle as possible. Make sure to distribute the weight as evenly as possible on both sides of the motorcycle to minimize imbalance or instability. ● Shifting weights can create a sudden imbalance.
✹✺✬✲✥ ✧ SAFETY INFORMATION motorcycle’s electrical system an electric failure could result, which could cause a dangerous loss of lights or engine power. Gasoline and exhaust gas ● GASOLINE IS HIGHLY FLAMMABLE: Always turn the engine off when refueling. Take care not to spill any gasoline on the engine or exhaust system when refueling. Never refuel while smoking or in the vicinity of an open flame. ● Never start the engine or let it run for any length of time in a closed area.
✹✺✬✲✥ ✤ DESCRIPTION EAU10410 Left view 1 2 34 5 6 1 2 3 4 5 6 7 8 9 9 8 1. Headlight (page 6-29) 2. Steering lock (page 3-8) 3. Fuel tank (page 3-5) 4. Fuel cock (page 3-7) 5. Helmet holder (page 3-9) 6. Luggage strap holder (page 3-10) 7. Drive chain slack adjusting plate 8. Air filter element (page 6-10) 7 9.
✹✺✬✲✥ ✥ DESCRIPTION EAU10420 Right view 1 2 2 3 4 5 6 7 7 6 5 1. Carrier 2. Battery (page 6-27) 3. Engine oil filter element (page 6-7) 4. Engine oil level check window (page 6-7) 5. Brake pedal (page 3-5) 6. Owner’s tool kit (page 6-1) 7.
✹✺✬✲✥ ✦ DESCRIPTION EAU10430 Controls and instruments 1 2 3 5 4 6 7 1 2 3 4 5 10 6 7 8 9 1. Clutch lever (page 3-4) 2. Left handlebar switches (page 3-3) 3. Speedometer unit (page 3-2) 4. Starter (choke) knob (page 3-8) 5. Main switch (page 3-1) 6. Indicator lights (page 3-1) 7. Right handlebar switches (page 3-3) 8. Brake lever (page 3-4) 9. Throttle grip (page 6-13) 10.
✹✺✬✲✥ ✤ INSTRUMENT AND CONTROL FUNCTIONS EAU10450 Main switch OFF EAU10660 OFF All electrical systems are off. The key can be removed. ON EAU10980 Indicator lights 1 2 3 2 3 The main switch controls the ignition and lighting systems. The various main switch positions are described below. 1. Turn signal indicator light “ 2. High beam indicator light “ 3.
✹✺✬✲✥ ✥ INSTRUMENT AND CONTROL FUNCTIONS on. EAU11640 Speedometer unit 1 1 2 2 4 3 3 4 5 6 7 8 9 1. Speedometer 2. Odometer 3. Tripmeter 4. Reset knob The speedometer unit is equipped with a speedometer, an odometer and a tripmeter. The speedometer shows riding speed. The odometer shows the total distance traveled. The tripmeter shows the distance traveled since it was last set to zero with the reset knob.
✹✺✬✲✥ ✦ INSTRUMENT AND CONTROL FUNCTIONS EAU12342 Handlebar switches Right EAU12500 Horn switch “ ” Press this switch to sound the horn. Left EAU12660 Engine stop switch “ / ” Set this switch to “ ” before starting the engine. Set this switch to “ ” to stop the engine in case of an emergency, such as when the vehicle overturns or when the throttle cable is stuck. 1 1 2 2 3 EAU12710 3 1. Engine stop switch “ 2. Start switch “ 1.
✹✺✬✲✥ ✧ INSTRUMENT AND CONTROL FUNCTIONS EAU12820 Clutch lever EAU12870 Shift pedal EAU12890 Brake lever 1 1 1 2 3 1 4 5 6 7 8 9 1. Clutch lever The clutch lever is located at the left handlebar grip. To disengage the clutch, pull the lever toward the handlebar grip. To engage the clutch, release the lever. The lever should be pulled rapidly and released slowly for smooth clutch operation.
✹✺✬✲✥ INSTRUMENT AND CONTROL FUNCTIONS EAU12941 Brake pedal EAU32280 Fuel tank cap unless the key is in the lock. In addition, the key cannot be removed if the cap is not properly installed and locked. EWA10120 WARNING Make sure that the fuel tank cap is properly closed and locked before riding. 2 2 3 1 1. Brake pedal The brake pedal is on the right side of the motorcycle. To apply the rear brake, press down on the brake pedal. 1 4 1. Fuel tank cap 2. Unlock.
✹✺✬✲✥ ✩ INSTRUMENT AND CONTROL FUNCTIONS EAU13210 Fuel fuel may deteriorate painted surfaces or plastic parts. EAU13320 1 1 Recommended fuel: REGULAR UNLEADED GASOLINE ONLY Fuel tank capacity: 7.0 L (1.85 US gal) (1.54 Imp.gal) Fuel reserve amount: 1.7 L (0.45 US gal) (0.37 Imp.gal) 2 2 3 4 5 6 1. Fuel tank filler tube 2. Fuel level Make sure that there is sufficient fuel in the tank. Fill the fuel tank to the bottom of the filler tube as shown.
✹✺✬✲✥ ✪ INSTRUMENT AND CONTROL FUNCTIONS EAU13560 Fuel cock The fuel cock supplies fuel from the tank to the carburetor while filtering it also. The fuel cock has three positions: OFF ON RES RES RES RES OFF ON OFF FUEL 1 ON ON FUEL 1 3 RES 1. Arrow mark positioned over “ON” OFF ON 2 FUEL 1 With the lever in this position, fuel flows to the carburetor. Normal riding is done with the lever in this position. 1. Arrow mark positioned over “OFF” 1.
✹✺✬✲✥ ✫ INSTRUMENT AND CONTROL FUNCTIONS EAU13600 Starter (choke) knob “ 1 ” EAU13770 Steering lock 1 1 (a) 2 2 3 (b) 4 5 6 7 8 9 1. Starter (choke) knob “ ” Starting a cold engine requires a richer air-fuel mixture, which is supplied by the starter (choke). Move the knob in direction (a) to turn on the starter (choke). Move the knob in direction (b) to turn off the starter (choke). 1. Steering lock cover 2. Steering lock To lock the steering 1.
✹✺✬✲✥ ✬ INSTRUMENT AND CONTROL FUNCTIONS EAU13970 EAU14281 Seat Helmet holder To remove the seat Remove the bolts, and then pull the seat off. 2 1 2 1 3 1. Projection 2. Seat holder 1 1. Bolt To install the seat 1. Insert the projection on the front of the seat into the seat holder as shown. 2. Place the seat in the original position, and then tighten the bolts. NOTE: Make sure that the seat is properly secured before riding. 4 1.
✹✺✬✲✥ ✤✣ INSTRUMENT AND CONTROL FUNCTIONS EAU15090 Shock absorber EAU15110 Carrier EWA10220 1 2 3 4 5 6 7 8 9 WARNING This shock absorber contains highly pressurized nitrogen gas. For proper handling, read and understand the following information before handling the shock absorber. The manufacturer cannot be held responsible for property damage or personal injury that may result from improper handling. ● Do not tamper with or attempt to open the gas cylinder.
✹✺✬✲✥ ✤✤ INSTRUMENT AND CONTROL FUNCTIONS EAU15300 Sidestand The sidestand is located on the left side of the frame. Raise the sidestand or lower it with your foot while holding the vehicle upright. NOTE: The built-in sidestand switch is part of the ignition circuit cut-off system, which cuts the ignition in certain situations. (See further down for an explanation of the ignition circuit cut-off system.
✹✺✬✲✥ ✤✥ INSTRUMENT AND CONTROL FUNCTIONS 1 2 3 4 5 6 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. Shift the transmission into the neutral position. 5. Push the start switch. Does the engine start? YES NOTE: This check is most reliable if performed with a warmed-up engine. NO The neutral switch may be defective. The motorcycle should not be ridden until checked by a Yamaha dealer.
✹✺✬✲✥ ✤ PRE-OPERATION CHECKS EAU15591 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. Therefore, it is very important, in addition to a thorough visual inspection, to check the following points before each ride.
✹✺✬✲✥ ✥ PRE-OPERATION CHECKS EAU15602 Pre-operation check list ITEM CHECKS ● 1 Fuel ● ● 2 ● Engine oil ● ● ● 3 ● ● 4 ● Front brake ● ● 5 ● ● ● 6 ● Rear brake ● ● 7 ● Clutch 8 ● ● ● ● 9 Throttle grip Control cables ● ● ● ● Check fuel level in fuel tank. Refuel if necessary. Check fuel line for leakage. Check oil level in engine. If necessary, add recommended oil to specified level. Check vehicle for oil leakage. Check operation.
✹✺✬✲✥ ✦ PRE-OPERATION CHECKS ITEM CHECKS ● Drive chain ● ● ● ● Wheels and tires ● ● ● Brake and shift pedals Brake and clutch levers Sidestand Chassis fasteners Instruments, lights, signals and switches Sidestand switch ● ● ● ● ● ● ● ● ● ● ● ● Check chain slack. Adjust if necessary. Check chain condition. Lubricate if necessary. Check for damage. Check tire condition and tread depth. Check air pressure. Correct if necessary. Make sure that operation is smooth.
✹✺✬✲✥ ✤ OPERATION AND IMPORTANT RIDING POINTS EAU15950 EWA10270 ● 1 2 3 ● 4 5 6 7 8 9 ● WARNING Become thoroughly familiar with all operating controls and their functions before riding. Consult a Yamaha dealer regarding any control or function that you do not thoroughly understand. Never start the engine or operate it in a closed area for any length of time. Exhaust fumes are poisonous, and inhaling them can cause loss of consciousness and death within a short time.
✹✺✬✲✥ ✥ OPERATION AND IMPORTANT RIDING POINTS cold! 7. When the engine is warm, turn the starter (choke) off. NOTE: The engine is warm when it responds normally to the throttle with the starter (choke) turned off. EAU16640 Starting a warm engine EAU16671 Shifting Follow the same procedure as for starting a cold engine with the exception that the starter (choke) is not required when the engine is warm. 2 5 4 3 2 N 1 2 3 1 1. Shift pedal 2.
✹✺✬✲✥ ✦ OPERATION AND IMPORTANT RIDING POINTS EAU16800 ECA10260 1 2 3 4 5 6 7 CAUTION: ● Even with the transmission in the neutral position, do not coast for long periods of time with the engine off, and do not tow the motorcycle for long distances. The transmission is properly lubricated only when the engine is running. Inadequate lubrication may damage the transmission.
✹✺✬✲✥ ✧ OPERATION AND IMPORTANT RIDING POINTS EAU16830 Engine break-in There is never a more important period in the life of your engine than the period between 0 and 1000 km (600 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 1000 km (600 mi). The various parts in the engine wear and polish themselves to the correct operating clearances.
✹✺✬✲✥ ✤ PERIODIC MAINTENANCE AND MINOR REPAIR EAU17240 1 2 3 4 5 6 7 Safety is an obligation of the owner. Periodic inspection, adjustment and lubrication will keep your vehicle in the safest and most efficient condition possible. The most important points of inspection, adjustment, and lubrication are explained on the following pages.
✹✺✬✲✥ ✥ PERIODIC MAINTENANCE AND MINOR REPAIR EAU17710 Periodic maintenance and lubrication chart NOTE: ● 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. NO.
✹✺✬✲✥ ✦ PERIODIC MAINTENANCE AND MINOR REPAIR NO. ITEM CHECK OR MAINTENANCE JOB ODOMETER READING (× 1000 km) 1 1 2 11 * Wheel bearings Drive chain 14 * Steering bearings 6 7 8 9 15 * Chassis fasteners 16 Sidestand 17 * Sidestand switch 18 * Front fork Shock absorber assem19 * bly Rear suspension relay 20 * arm and connecting arm pivoting points 21 * Carburetor 22 Engine oil Engine oil filter element 23 24 * Engine oil strainer √ √ √ √ √ √ √ ● Check operation.
✹✺✬✲✥ ✧ PERIODIC MAINTENANCE AND MINOR REPAIR NO. ITEM Front and rear brake switches Moving parts and cables 25 * 26 Throttle grip housing and cable 27 * Lights, signals and switches 28 * CHECK OR MAINTENANCE JOB ● Check operation. ● Lubricate. Check operation and free play. Adjust the throttle cable free play if necessary. Lubricate the throttle grip housing and cable. Check operation. Adjust headlight beam.
✹✺✬✲✥ PERIODIC MAINTENANCE AND MINOR REPAIR To install the panel Place the panel in the original position, and then install the screws. EAU18771 Removing panels 1 2 and installing 1 The panels shown need to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time a panel needs to be removed and installed. 3 1 1.
✹✺✬✲✥ ✩ PERIODIC MAINTENANCE AND MINOR REPAIR To install the panel Place the panel in the original position. EAU19602 Checking the spark plug 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. In addition, the condition of the spark plug can reveal the condition of the engine.
✹✺✬✲✥ ✪ PERIODIC MAINTENANCE AND MINOR REPAIR necessary. Specified spark plug: NGK/DR8EA 1 2 3 To install the spark plug 1. Measure the spark plug gap with a wire thickness gauge and, if necessary, adjust the gap to specification. 4 5 6 1 3. Install the spark plug with the spark plug wrench, and then tighten it to the specified torque. Tightening torque: Spark plug: 17.5 Nm (1.75 m·kgf, 12.
✹✺✬✲✥ ✫ PERIODIC MAINTENANCE AND MINOR REPAIR crankcase. NOTE: The engine oil should be between the minimum and maximum level marks. to collect the used oil. 3. Remove the engine oil filler cap and drain bolt to drain the oil from the crankcase. 1 2 2 3 1 1 3 1. Engine oil drain bolt ECA11000 1. Engine oil level check window 2. Maximum level mark 3. Minimum level mark 1. Engine oil filler cap 4.
✹✺✬✲✥ ✬ PERIODIC MAINTENANCE AND MINOR REPAIR 3 7. Check the O-ring for damage and replace it if necessary. 8. Clean the oil filter element with solvent, and then install it. NOTE: Check the oil filter element for damage and replace it if necessary. 3 1 1 2 2 2 1 3 4 5 6 7 1. O-ring 2. Compression spring 3. Strainer NOTE: Skip steps 4–9 if the oil filter element is not being cleaned. 4. Remove the oil filter element drain bolt to drain the oil from the oil filter element.
✹✺✬✲✥ ✤✣ PERIODIC MAINTENANCE AND MINOR REPAIR 11. Install the oil strainer, compression spring, O-ring and engine oil drain bolt, and then tighten the drain bolt to the specified torque. Tightening torque: Engine oil drain bolt: 43 Nm (4.3 m·kgf, 31.1 ft·lbf) 12. Add the specified amount of the recommended engine oil, and then install and tighten the oil filler cap. Recommended engine oil: See page 8-1. Oil quantity: Without oil filter element removal: 1.00 L (1.06 US qt) (0.
✹✺✬✲✥ ✤✤ PERIODIC MAINTENANCE AND MINOR REPAIR material, and then squeeze the excess oil out. NOTE: The sponge material should be wet but not dripping. 1 2 1 2 To clean the air filter check hose 1. Check the hose at the bottom of the air filter case for accumulated dirt or water. Recommended oil: Engine oil 3 4 5 6 1. Sponge material 2. Air filter element frame 4.
✹✺✬✲✥ ✤✥ PERIODIC MAINTENANCE AND MINOR REPAIR EAU21280 Adjusting the carburetor The carburetor is an important part of the engine and requires very sophisticated adjustment. Therefore, most carburetor adjustments should be left to a Yamaha dealer, who has the necessary professional knowledge and experience. The adjustment described in the following section, however, may be serviced by the owner as part of routine maintenance.
✹✺✬✲✥ ✤✦ PERIODIC MAINTENANCE AND MINOR REPAIR EAU21380 Adjusting the throttle cable free play 1 2 1 3 EAU21400 EAU21581 Adjusting the valve clearance Tires The valve clearance changes with use, resulting in improper air-fuel mixture and/or engine noise. To prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart.
✹✺✬✲✥ ✤✧ PERIODIC MAINTENANCE AND MINOR REPAIR Tire air pressure (measured on cold tires): 0–90 kg (0–198 lb) : Front: 150 kPa (22 psi) (1.50 kgf/cm2) Rear: 150 kPa (22 psi) (1.50 kgf/cm2) 90–180 kg (198–397 lb) : Front: 150 kPa (22 psi) (1.50 kgf/cm2) Rear: 175 kPa (25 psi) (1.75 kgf/cm2) Maximum load*: 180 kg (397 lb) * Total weight of rider, passenger, cargo and accessories EWA11200 ● ● ● ● damage, loss of control, or severe injury.
✹✺✬✲✥ ✤ PERIODIC MAINTENANCE AND MINOR REPAIR Tire information This motorcycle is equipped with tube tires. EWA10460 1 ● 2 3 4 5 ● WARNING The front and rear tires should be of the same make and design, otherwise the handling characteristics of the vehicle cannot be guaranteed. After extensive tests, only the tires listed below have been approved for this model by Yamaha Motor Co., Ltd.
✹✺✬✲✥ ✤✩ PERIODIC MAINTENANCE AND MINOR REPAIR EAU21940 Spoke wheels To maximize the performance, durability, and safe operation of your motorcycle, note the following points regarding the specified wheels. ● The wheel rims should be checked for cracks, bends or warpage, and the spokes for looseness or damage before each ride. If any damage is found, have a Yamaha dealer replace the wheel. Do not attempt even the smallest repair to the wheel.
✹✺✬✲✥ ✤✪ PERIODIC MAINTENANCE AND MINOR REPAIR 7. Tighten the locknut at the clutch lever and the crankcase. EAU22092 Adjusting the brake lever free play 3. Tighten the locknut. EWA10630 ● 1 3 1 2 2 (b) ● 3 (a) 4 5 6 7 8 9 1. Locknut 2. Brake lever free play adjusting screw 3. Brake lever free play The brake lever free play should measure 5.0–8.0 mm (0.20–0.31 in) as shown. Periodically check the brake lever free play and, if necessary, adjust it as follows. 1.
✹✺✬✲✥ ✤✫ PERIODIC MAINTENANCE AND MINOR REPAIR Brake pedal free play EAU22191 Adjusting the brake pedal position and free play 3 EWA10670 WARNING It is advisable to have a Yamaha dealer make these adjustments. Brake pedal position The top of the brake pedal should be positioned approximately 30.0 mm (1.18 in) below the top of the footrest. Periodically check the brake pedal position and, if necessary, adjust it as follows. 1. Loosen the locknut at the brake pedal. 2.
✹✺✬✲✥ ✤✬ PERIODIC MAINTENANCE AND MINOR REPAIR (a) 1 EAU22270 EAU22380 Adjusting the rear brake light switch Checking the front brake pads and rear brake shoes (b) 1 2 1 3 2 (b) The front brake pads and the rear brake shoes must be checked for wear at the intervals specified in the periodic maintenance and lubrication chart. EAU22430 (a) 1.
✹✺✬✲✥ ✥✣ PERIODIC MAINTENANCE AND MINOR REPAIR peared, have a Yamaha dealer replace the brake pads as a set. EAU32341 Checking the brake fluid level ● EAU22540 Rear brake shoes 1 1 Recommended brake fluid: DOT 4 2 1. Minimum level mark 1. Brake shoe wear limit line 2. Brake shoe wear indicator The rear brake is provided with a wear indicator, which allows you to check the brake shoe wear without having to disassemble the brake.
✹✺✬✲✥ ✥✤ PERIODIC MAINTENANCE AND MINOR REPAIR brake fluid level goes down suddenly, have a Yamaha dealer check the cause. 1 2 3 4 5 EAU22720 EAU22760 Changing the brake fluid Drive chain slack Have a Yamaha dealer change the brake fluid at the intervals specified in the NOTE after the periodic maintenance and lubrication chart.
✹✺✬✲✥ ✥✥ PERIODIC MAINTENANCE AND MINOR REPAIR 1 ECA10570 (a) 2 (b) 1 3 1. Drive chain slack 4. If the drive chain slack is incorrect, adjust it as follows. EAU22830 To adjust the drive chain slack 1. Loosen the brake pedal free play adjusting nut. 1. Brake pedal free play adjusting nut 2. Axle nut 3. Drive chain slack adjusting plate 2. Loosen the axle nut. 3. To tighten the drive chain, turn the adjusting plate on each side of the swingarm in direction (a).
✹✺✬✲✥ ✥✦ PERIODIC MAINTENANCE AND MINOR REPAIR EAU23011 Lubricating the drive chain 1 2 3 4 5 6 7 8 9 oiled. EAU23100 Checking and lubricating the cables The drive chain must be cleaned and lubricated at the intervals specified in the periodic maintenance and lubrication chart, otherwise it will quickly wear out, especially when riding in dusty or wet areas. Service the drive chain as follows.
✹✺✬✲✥ ✥✧ PERIODIC MAINTENANCE AND MINOR REPAIR EAU23110 EAU23131 EAU23140 Checking and lubricating the throttle grip and cable Checking and lubricating the brake and shift pedals Checking and lubricating the brake and clutch levers The operation of the throttle grip should be checked before each ride. In addition, the cable should be lubricated or replaced at the intervals specified in the periodic maintenance chart.
✹✺✬✲✥ ✥ PERIODIC MAINTENANCE AND MINOR REPAIR EAU23200 Checking and lubricating the sidestand EAU23250 Lubricating suspension the rear The condition and operation of the front fork must be checked as follows at the intervals specified in the periodic maintenance and lubrication chart. To check the condition 1 2 1(×2) 4 6 7 8 9 EWA10750 WARNING Securely support the vehicle so that there is no danger of it falling over.
✹✺✬✲✥ ✥✩ PERIODIC MAINTENANCE AND MINOR REPAIR EAU23280 Checking the steering ECA10590 CAUTION: 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 a stand under the engine to raise the front wheel off the ground.
✹✺✬✲✥ ✥✪ PERIODIC MAINTENANCE AND MINOR REPAIR EAU23290 Checking the wheel bearings 1 2 3 EAU23370 Battery The front and rear wheel bearings must be checked at the intervals specified in the periodic maintenance and lubrication 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. 1 furic acid, which causes severe burns.
✹✺✬✲✥ ✥✫ PERIODIC MAINTENANCE AND MINOR REPAIR To charge the battery Have a Yamaha dealer charge the battery as soon as possible if it seems to have discharged. Keep in mind that the battery tends to discharge more quickly if the vehicle is equipped with optional electrical accessories. To store the battery 1. If the vehicle will not be used for more than one month, remove the battery, fully charge it, and then place it in a cool, dry place. 2.
✹✺✬✲✥ ✥✬ PERIODIC MAINTENANCE AND MINOR REPAIR EAU23792 Replacing the headlight bulb Specified fuse: 20.0 A 1 2 3 4 5 6 7 ECA10640 CAUTION: Do not use a fuse of a higher amperage rating than recommended to avoid causing extensive damage to the electrical system and possibly a fire. 3. Turn the key to “ON” and turn on the electrical circuits to check if the devices operate. 4. If the fuse immediately blows again, have a Yamaha dealer check the electrical system.
✹✺✬✲✥ ✦✣ PERIODIC MAINTENANCE AND MINOR REPAIR the glass, the luminosity of the bulb, and the bulb life will be adversely affected. Thoroughly clean off any dirt and fingerprints on the headlight bulb using a cloth moistened with alcohol or thinner. 1 2 3 1 1. Headlight bulb holder 6. Install the headlight unit by installing the screws. 7. Have a Yamaha dealer adjust the headlight beam if necessary. EWA10790 WARNING Headlight bulbs get very hot.
✹✺✬✲✥ ✦✤ PERIODIC MAINTENANCE AND MINOR REPAIR 1 EAU24131 EAU24201 Replacing the tail/brake light bulb Replacing a turn signal light bulb 1 1. Remove the tail/brake light lens by removing the screws. 2 1. Remove the turn signal light lens by removing the screw. 1(×2) 3 1 1. Tail/brake light bulb 4 5 1. Screw 6 7 2. Remove the defective bulb by pushing it in and turning it counterclockwise. 3.
✹✺✬✲✥ ✦✥ PERIODIC MAINTENANCE AND MINOR REPAIR EAU24350 ECA11190 CAUTION: Do not overtighten the screw, otherwise the lens may break. Supporting the motorcycle Since this model is not equipped with a centerstand, follow these precautions when removing the front and rear wheel or performing other maintenance requiring the motorcycle to stand upright. Check that the motorcycle is in a stable and level position before starting any maintenance.
✹✺✬✲✥ ✦✦ PERIODIC MAINTENANCE AND MINOR REPAIR EAU24360 Front wheel and then pull it off. 1 EAU24590 To remove the front wheel EWA10820 1 2 ● ● 3 4 5 according to the procedure on page 6-32. 6. Remove the axle nut, pull the wheel axle out, and then remove the wheel. WARNING It is advisable to have a Yamaha dealer service the wheel. Securely support the motorcycle so that there is no danger of it falling over. 1.
✹✺✬✲✥ ✦✧ PERIODIC MAINTENANCE AND MINOR REPAIR 2. Lift the wheel up between the fork legs. NOTE: Make sure that there is enough space between the brake pads before inserting the brake disc and that the slot in the speedometer gear unit fits over the retainer on the fork leg. 1 2 fied torque. EAU25080 Rear wheel Tightening torque: Axle nut: 90 Nm (9.0 m·kgf, 65.1 ft·lbf) 6. Place the rubber cover at the bottom of the right-side fork leg in the original position. 7.
✹✺✬✲✥ ✦ PERIODIC MAINTENANCE AND MINOR REPAIR 1 2 3 4 5 6 7 8 9 adjusting nut, and then disconnect the brake rod from the brake camshaft lever. 3. Turn the drive chain adjusting plate on each side of the swingarm fully in direction (a). 4. Lift the rear wheel off the ground according to the procedure on page 6-32. 5. Remove the axle nut, and then pull the wheel axle out. 6. Push the wheel forward, and then remove the drive chain from the rear sprocket.
✹✺✬✲✥ ✦✩ PERIODIC MAINTENANCE AND MINOR REPAIR EAU25850 Troubleshooting Although Yamaha motorcycles 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 chart represents a quick and easy procedure for checking these vital systems yourself.
✹✺✬✲✥ ✦✪ PERIODIC MAINTENANCE AND MINOR REPAIR EAU25901 Troubleshooting chart EWA10840 1 2 WARNING Keep away open flames and do not smoke while checking or working on the fuel system. 1. Fuel There is enough fuel. Check the compression. There is no fuel. Supply fuel. There is compression. Check the ignition. There is no compression. Have a Yamaha dealer check the vehicle. Check the fuel level in the fuel tank. 3 4 5 6 7 The engine does not start. Check the compression.
✹✺✬✲✥ ✤ MOTORCYCLE CARE AND STORAGE EAU26000 Care While the open design of a motorcycle reveals the attractiveness of the technology, it also makes it more vulnerable. Rust and corrosion can develop even if high-quality components are used. A rusty exhaust pipe may go unnoticed on a car, however, it detracts from the overall appearance of a motorcycle.
✹✺✬✲✥ ✥ MOTORCYCLE CARE AND STORAGE 1 2 3 4 5 6 7 8 9 any marks. If the windshield is scratched, use a quality plastic polishing compound after washing. After normal use Remove dirt with warm water, a mild detergent, and a soft, clean sponge, and 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.
✹✺✬✲✥ ✦ MOTORCYCLE CARE AND STORAGE ● ● ingly and make sure to wipe off any excess. Never apply oil or wax to any rubber and plastic parts, but treat them with a suitable care product. Avoid using abrasive polishing compounds as they will wear away the paint. NOTE: Consult a Yamaha dealer for advice on what products to use. EAU26150 Storage Short-term Always store your motorcycle in a cool, dry place and, if necessary, protect it against dust with a porous cover.
✹✺✬✲✥ ✧ MOTORCYCLE CARE AND STORAGE from the spark plug, and then install the spark plug and the spark plug cap. EWA10950 1 2 3 4 5 6 7 8 9 WARNING To prevent damage or injury from sparking, make sure to ground the spark plug electrodes while turning the engine over. 6. Lubricate all control cables and the pivoting points of all levers and pedals as well as of the sidestand/ centerstand. 7.
✹✺✬✲✥ ✤ SPECIFICATIONS EAU26333 Dimensions: Overall length: 2135 mm (84.1 in) Overall width: 820 mm (32.3 in) Overall height: 1120 mm (44.1 in) Seat height: 820 mm (32.3 in) Wheelbase: 1350 mm (53.1 in) Ground clearance: 255 mm (10.04 in) Minimum turning radius: 2100 mm (82.7 in) Weight: With oil and fuel: 127.0 kg (280 lb) Engine: Engine type: Air cooled 4-stroke, SOHC Cylinder arrangement: Forward-inclined single cylinder Displacement: 125.0 cm3 (7.63 cu.in) Bore × stroke: 57.
✹✺✬✲✥ ✥ SPECIFICATIONS 4th: 25/27 (0.926) 5th: 23/29 (0.793) 1 2 3 4 5 6 7 8 Chassis: Frame type: Diamond Caster angle: 25.8 ° Trail: 93.0 mm (3.
✹✺✬✲✥ ✦ SPECIFICATIONS Bulb voltage, wattage x quantity: Headlight: 12 V, 60 W/55.0 W × 1 Tail/brake light: 12 V, 5.0/21.0 W × 1 Front turn signal light: 12 V, 21.0 W × 2 Rear turn signal light: 12 V, 21.0 W × 2 Auxiliary light: 12 V, 4.0 W × 1 Meter lighting: 12 V, 3.4 W × 1 Neutral indicator light: 12 V, 3.4 W × 1 High beam indicator light: 12 V, 3.4 W × 1 Turn signal indicator light: 12 V, 3.4 W × 1 2 3 4 5 6 Fuse: Fuse: 20.
✹✺✬✲✥ ✤ CONSUMER INFORMATION EAU26351 Identification numbers 1 2 3 Record the key identification number, 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. KEY IDENTIFICATION NUMBER: 4 VEHICLE BER: IDENTIFICATION NUM- EAU26400 Vehicle identification number 1 1 1.
✹✺✬✲✥ ✥ CONSUMER INFORMATION EAU26460 Model label 1 2 3 4 1. Model label The model label is affixed to the location shown. Record the information on this label in the space provided. This information will be needed when ordering spare parts from a Yamaha dealer.
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5RS-9-E2_hyoushi 9/4/03 9:23 AM Page 1 OWNER’S MANUAL TW125 YAMAHA MOTOR CO., LTD. PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2003.9–0.
