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Yamaha a reputa- tion for dependability. Please take the time to read this manual thoroughly, so as to enjoy all advantages of your TW125. The owner’s manual does not only instruct you in how to operate, inspect and maintain your motorcy- cle, but also in how to safeguard yourself and others from trouble and injury.
8 This manual should be considered a permanent part of this motorcycle and should remain with it even if the motorcycle is subsequently sold. 8 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.
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IMPORTANT MANUAL INFORMATION EW000002 PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS MOTORCYCLE.
EAU00009 TABLE OF CONTENTS GIVE SAFETY THE RIGHT OF WAY ....1-1 Ignition circuit cut-off system ......3-11 DESCRIPTION ..........2-1 PRE-OPERATION CHECKS ......4-1 Left view ............2-1 Pre-operation check list ......... 4-1 Right view ............2-2 Controls and instruments ....... 2-3 OPERATION AND IMPORTANT RIDING POINTS .............
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TABLE OF CONTENTS Adjusting the throttle cable free play .... 6-15 Battery ............6-32 Adjusting the valve clearance ...... 6-16 Replacing the fuse ........6-33 Tires ............. 6-16 Replacing the headlight bulb ......6-34 Spoke wheels ..........6-18 Replacing a turn signal light bulb ....6-36 Adjusting the clutch lever free play ....
EAU00021 Q GIVE SAFETY THE RIGHT OF WAY Motorcycles are fascinating vehicles, which can give you an unsurpassed feeling of power and free- dom. However, they also impose certain limits, which you must accept; even the best motorcycle does not ignore the laws of physics. Regular care and maintenance are essential for preserving value and operating condition of your motorcycle.
EAU00027 INSTRUMENT AND CONTROL FUNCTIONS EAU00061 Neutral indicator light “N” This indicator light comes on when the transmission is in the neutral position. 1. Turn signal indicator light “5” 2. High beam indicator light “&” EAU00028 3. Neutral indicator light “N” Main switch EAU00056 Mai n swi t c h...
INSTRUMENT AND CONTROL FUNCTIONS NOTE: Only for the German model equipped with a speed limiter: The speed limiter prevents the motor- cycle from exceeding a riding speed of 80 km/h. 1. Speedometer 1. Light switch “9/ /:” 2. Odometer 2. Dimmer switch “&/%” 3.
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INSTRUMENT AND CONTROL FUNCTIONS EAU03888 EAU00143 Dimmer switch “&/%” Start switch “,” Set this switch to “&” for the high Push this switch to crank the engine beam and to “%” for the low beam. with the starter. EAU03889 EC000005 Turn signal switch “4/6”...
INSTRUMENT AND CONTROL FUNCTIONS 1. Clutch lever 1. Shift pedal 1. Brake lever EAU00152 EAU00157 EAU00158 Clutch lever Shift pedal 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.
INSTRUMENT AND CONTROL FUNCTIONS To install the fuel tank cap 1. Insert the fuel tank cap into the tank opening with the key insert- ed in the lock, and then turn the cap 1/3 turn clockwise. 2. Turn the key 1/4 turn clockwise, and then remove it.
EAU04284 Recommended fuel: 1. Filler tube Your Yamaha engine has been 2. Fuel level REGULAR UNLEADED designed to use regular unleaded EAU03753 GASOLINE ONLY...
INSTRUMENT AND CONTROL FUNCTIONS OFF: Closed position ON: Normal position RES: Reserve position FUEL FUEL FUEL 1. Arrow mark positioned over “OFF” 1. Arrow mark positioned over “ON” 1. Arrow mark positioned over “RES” EAU03050 Fuel cock With the lever in this position, fuel This indicates reserve.
INSTRUMENT AND CONTROL FUNCTIONS 4. Check that the steering is locked, remove the key, and then close the lock cover. To unlock the steering 1. Open the steering lock cover, and then insert the steering lock key. 2. Push the key in, turn it 1/8 turn 1.
INSTRUMENT AND CONTROL FUNCTIONS 1. Bolt (×2) 1. Projection 1. Helmet holder 2. Seat holder EAU01092 EAU00260 To install the seat Seat Helmet holder 1. Insert the projection on the front To open the helmet holder, insert the of the seat into the seat holder To remove the seat key into the lock, and then turn the as shown.
8 Do not deform or damage the gas cylinder in any way, as this will result in poor damp- ing performance. 8 Always have a Yamaha dealer service the shock absorber. 3-10...
8 It cuts the running engine when regularly as described below and the transmission is in gear and have a Yamaha dealer repair it if it the sidestand is moved down. does not function properly. Periodically check the operation of the ignition circuit cut-off system according to the following procedure.
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5. Push the start switch. 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: 6. Move the sidestand up. 7. Keep the clutch lever pulled.
• If necessary, add recommended oil to specified level. 6-9–6-12 • Check vehicle for oil leakage. • Check operation. • If soft or spongy, have Yamaha dealer bleed hydraulic system. • Check lever free play. Front brake • Adjust if necessary.
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• Adjust if necessary. • Make sure that operation is smooth. Throttle grip • Check free play. 6-15, 6-28 • If necessary, have Yamaha dealer make adjustment or lubricate. • Make sure that operation is smooth. Control cables 6-27 • Lubricate if necessary.
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• Check operation of ignition circuit cut-off system. Sidestand switch 3-11–3-12 • If system is defective, have Yamaha dealer check vehicle. NOTE: Pre-operation checks should be made each time the motorcycle is used. Such an inspection can be accomplished in a very short time;...
OPERATION AND IMPORTANT RIDING POINTS EAU01258 6. After starting the engine, move Starting a warm engine the starter (choke) knob back Follow the same procedure as for halfway. starting a cold engine with the excep- ECA00055 tion that the starter (choke) is not required when the engine is warm.
OPERATION AND IMPORTANT RIDING POINTS EC000048 EAU02941 Recommended shift points (for Switzerland only) 8 Even with the transmission in The recommended shift points during the neutral position, do not acceleration are shown in the table coast for long periods of time below.
(e.g., in traffic jams, at EC000049 traffic lights or at railroad cross- ings). If any engine trouble should occur during the engine break-in period, immediately have a Yamaha dealer check the vehicle.
OPERATION AND IMPORTANT RIDING POINTS FUEL 1. Arrow mark positioned over “OFF” EAU00457 Parking When parking, stop the engine, remove the key from the main switch, and then turn the fuel cock lever to “OFF”. EW000058 8 Since the engine and exhaust system can become very hot, park in a place where pedestri- ans or children are not likely...
If you do not have the tools or experi- Periodic inspection, adjustment and ence required for a particular job, lubrication will keep your vehicle in have a Yamaha dealer perform it for the safest and most efficient condi- you. tion possible. The most important...
8 The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead. 8 From 30,000 km, repeat the maintenance intervals starting from 6,000 km. 8 Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
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PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING (× 1,000 km) ANNUAL ITEM CHECK OR MAINTENANCE JOB CHECK • Check runout, spoke tightness and for damage. √ √ √ √ Wheels • Tighten spokes if necessary. • Check tread depth and for damage. •...
PERIODIC MAINTENANCE AND MINOR REPAIR 1. Panel A 1. Panel B 1. Panel A 2. Screw (×2) EAU01122 EAU01492 Removing and installing Panel A panels To remove the panel The panels shown above need to be Remove the screws, and then pull removed to perform some of the the panel out at the area shown.
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PERIODIC MAINTENANCE AND MINOR REPAIR 1. Panel B EAU00494 To install the panel To install the panel Panel B Place the panel in the original posi- Place the panel in the original posi- To remove the panel tion, and then install the screws. tion.
PERIODIC MAINTENANCE AND MINOR REPAIR EAU01833 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.
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Instead, 1. Measure the spark plug gap with sible. have a Yamaha dealer check the a wire thickness gauge and, if motorcycle. necessary, adjust the gap to 4. Install the spark plug cap. specification. 2. Check the spark plug for elec-...
PERIODIC MAINTENANCE AND MINOR REPAIR EAU04400 Engine oil and oil filter element The engine oil level should be checked before each ride. In addition, the oil must be changed and the oil filter element cleaned at the intervals specified in the periodic maintenance and lubrication chart.
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PERIODIC MAINTENANCE AND MINOR REPAIR 1. Engine oil drain bolt 1. Strainer 1. Oil filter element drain bolt 2. Compression spring 2. Oil filter element cover 3. O-ring 3. Oil filter element cover bolt (×2) ECA00039 NOTE: Skip steps 4–9 if the oil filter element When removing the engine oil is not being cleaned.
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PERIODIC MAINTENANCE AND MINOR REPAIR 12. Add the specified amount of the Tightening torques: recommended engine oil, and Oil filter element cover bolt: then install and tighten the oil 10 Nm (1.0 m·kgf) filler cap. Oil filter element drain bolt: 10 Nm (1.0 m·kgf) Recommended engine oil: See page 8-1.
PERIODIC MAINTENANCE AND MINOR REPAIR ECA00105 EAU04216 Cleaning the air filter ele- ment and check hose 8 In order to prevent clutch slip- The air filter element should be page (since the engine oil also cleaned at the intervals specified in lubricates the clutch), do not the periodic maintenance and lubrica- mix any chemical additives...
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PERIODIC MAINTENANCE AND MINOR REPAIR 7. Insert the element into the air fil- ter case. EC000082 8 Make sure that the air filter ele- ment is properly seated in the air filter case. 8 The engine should never be operated without the air filter 1.
The engine idling speed must be cated adjustment. Therefore, most checked and, if necessary, adjusted carburetor adjustments should be left as follows at the intervals specified in to a Yamaha dealer, who has the the periodic maintenance and lubrica- necessary professional knowledge tion chart. experience.
PERIODIC MAINTENANCE AND MINOR REPAIR NOTE: If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. 1. Throttle stop screw a. Throttle cable free play EAU00635 3. Check the engine idling speed...
(1.75 kgf/cm this from occurring, the valve clear- maximum 1.50 bar) 1.75 bar) ance must be adjusted by a Yamaha Tire air pressure dealer at the intervals specified in the The tire air pressure should be Maximum load* 180 kg...
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Yamaha dealer replace the tire imme- for the vehicle. diately. 8 Do not carry along loosely...
PERIODIC MAINTENANCE AND MINOR REPAIR EAU00681 EAU00685 Tire information Spoke wheels This motorcycle is equipped with tube To maximize the performance, dura- 8 Have a Yamaha dealer replace tires. bility, and safe operation of your excessively worn tires. EW000078 motorcycle, note the following points Besides being illegal, operat- regarding the specified wheels.
PERIODIC MAINTENANCE AND MINOR REPAIR 8 Ride at moderate speeds after 3. If the specified clutch lever free changing a tire since the tire sur- play could obtained face must first be “broken in” for described above, tighten the it to develop its optimal charac- locknut and skip the rest of the teristics.
EAU00696 crankcase. Adjusting the brake lever a Yamaha dealer bleed the 6. To increase the clutch lever free free play system before operating the play, turn the adjusting nut in The brake lever free play should motorcycle.
Periodically check the brake pedal EW000104 free play and, if necessary, adjust it as follows. It is advisable to have a Yamaha dealer make these adjustments. Brake pedal position The top of the brake pedal should be positioned...
8 If proper adjustment cannot be obtained as described, have a 1. Brake pedal free play adjusting nut 1. Rear brake light switch Yamaha dealer make this 2. Adjusting nut adjustment. To increase the brake pedal free...
Yamaha wear indicator reaches the wear limit dealer replace the brake pads as a line, have a Yamaha dealer replace set. the brake shoes as a set. 6-23...
However, if ing leakage and poor braking the brake fluid level goes down performance. suddenly, have a Yamaha dealer 1. Minimum level mark check the cause. Recommended brake fluid: EAU03774 Checking the brake fluid...
EAU03985 EAU00744 Changing the brake fluid Drive chain slack Have a Yamaha dealer change the The drive chain slack should be brake fluid at the intervals specified in checked before each ride and adjust- the NOTE after the periodic mainte- ed if necessary.
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PERIODIC MAINTENANCE AND MINOR REPAIR 5. Adjust the brake pedal free play. NOTE: (See page 6-21 for brake pedal Make sure that both adjusting plates free play adjustment proce- are in the same position for proper dures.) wheel alignment. EW000103 EC000096 After adjusting the brake pedal free play, check the operation of...
NOTE: Lubricating the drive chain For a thorough cleaning, have a The drive chain must be cleaned and Yamaha dealer remove the drive lubricated at the intervals specified in chain and soak it in solvent. the periodic maintenance and lubrica-...
PERIODIC MAINTENANCE AND MINOR REPAIR EW000112 EAU04034 Checking and lubricating the throttle grip and cable Damage to the outer sheath may The operation of the throttle grip interfere with proper cable opera- should be checked before each ride. tion and will cause the inner cable In addition, the cable should be lubri- to rust.
Recommended lubricant: EW000113 Lithium-soap-based grease (all-purpose grease) If the sidestand does not move up down smoothly, have Yamaha dealer check or repair it. 6-29...
Recommended lubricant: rebounds smoothly. Lithium-soap-based grease EC000098 If any damage is found or the front fork does not operate smoothly, have a Yamaha dealer check or repair it. 6-30...
PERIODIC MAINTENANCE AND MINOR REPAIR EW000116 8 KEEP THIS AND ALL BATTER- IES OUT OF THE REACH OF 8 Electrolyte is poisonous and CHILDREN. dangerous since it contains sulfuric acid, which causes severe burns. Avoid any con- tact with skin, eyes or clothing and always shield your eyes when working near batteries.
PERIODIC MAINTENANCE AND MINOR REPAIR EC000102 To charge the battery Have a Yamaha dealer charge the 8 Always keep battery battery as soon as possible if it charged. Storing a discharged seems to have discharged. Keep in battery can cause permanent mind that the battery tends to dis- battery damage.
Replacing the headlight bulb 4. If the fuse immediately blows pler, and then remove the bulb This motorcycle is equipped with a again, have a Yamaha dealer cover. quartz bulb headlight. If the headlight check the electrical system. bulb burns out, replace it as follows.
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EW000119 oil, otherwise the transparency of 7. Have a Yamaha dealer adjust the glass, the luminosity of the Headlight bulbs get very hot. the headlight beam if necessary. bulb, and the bulb life will be...
PERIODIC MAINTENANCE AND MINOR REPAIR ECA00065 Do not overtighten the screw, oth- erwise the lens may break. 1. Screw 1. Screw (×2) 2. Lens EAU01623 3. bulb Replacing the tail/brake light EAU03497 bulb Replacing a turn signal light bulb 1. Remove the tail/brake light lens by removing the screws.
PERIODIC MAINTENANCE AND MINOR REPAIR EAU01579 To service the rear wheel Supporting the motorcycle Raise the rear wheel off the ground Since this model is not equipped with by using a motorcycle stand or, if a a centerstand, follow these precau- motorcycle stand is not available, by tions when removing the front and placing a jack either under each side...
Wheel ( f r o nt ) To remove the front wheel Removi n g EW000122 8 It is advisable to have a Yamaha dealer service the wheel. 1. Rubber cover 1. Rubber cover 8 Securely support the motorcy- cle so that there is no danger 1.
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PERIODIC MAINTENANCE AND MINOR REPAIR ECA00048 Do not apply the brake after the wheel has been removed together with the brake disc, otherwise the brake pads will be forced shut. 1. Speedometer cable 1. Speedometer gear unit 2. Axle nut EAU04388 3.
EW000122 leg. 8 It is advisable to have a 3. Insert the wheel axle, and then Yamaha dealer service the install the axle nut. wheel. 4. Lower the front wheel so that it is 8 Securely support the motorcy- on the ground.
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PERIODIC MAINTENANCE AND MINOR REPAIR 2. Remove the brake pedal free 2. Install the drive chain onto the play adjusting nut, and then dis- rear sprocket, and then adjust connect the brake rod from the the drive chain slack. (See page brake camshaft lever.
Use only genuine Yamaha replace- ment parts. Imitation parts may look like Yamaha parts, but they are often inferior, have a shorter service life and can lead to expensive repair bills. 6-42...
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.
EAU03521 MOTORCYCLE CARE AND STORAGE Before cleaning Cleaning Care 1. Cover the muffler outlet with a ECA00010 While the open design of a motorcy- plastic bag after the engine has cle reveals the attractiveness of the 8 Avoid using strong acidic cooled down.
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MOTORCYCLE CARE AND STORAGE 8 Do not use any harsh chemical 8 For motorcycles equipped After riding in the rain, near the sea products on plastic parts. Be with a windshield: Do not use or on salt-sprayed roads sure to avoid using cloths or strong cleaners hard...
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NOTE: 4. To prevent corrosion, it is recom- with warm water and a mild Consult a Yamaha dealer for advice detergent. mended to apply a corrosion pro- on what products to use. 8 Before operating the motorcy-...
MOTORCYCLE CARE AND STORAGE Storage Long-term a. Remove the spark plug cap Before storing your motorcycle for and spark plug. Short-term several months: b. Pour a teaspoonful of engine Always store your motorcycle in a 1. Follow all the instructions in the oil into the spark plug bore.
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MOTORCYCLE CARE AND STORAGE 6. Lubricate all control cables and 9. Remove the battery and fully the pivoting points of all levers charge it. Store it in a cool, dry and pedals as well as of the place and charge it once a sidestand/centerstand.
EAU01038 SPECIFICATIONS Specifications Engine oil Model TW125 –20° –10° 0° 10° 20° 30° 40° 50°C Type Dimensions SAE 10W/30 Overall length 2,135 mm SAE 10W/40 Overall width 820 mm SAE 15W/40 Overall height 1,120 mm SAE 20W/40 Seat height 820 mm...
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SPECIFICATIONS Air filter Wet type element Gear ratio 2.250 Fuel 1.476 Type REGULAR UNLEADED 1.125 GASOLINE ONLY 0.926 Fuel tank capacity 7.0 L 0.793 Reserve amount 1.0 L Chassis Carburetor Frame type Diamond Manufacturer TEIKEI Caster angle 25.83° Model × quantity MV28 ×...
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SPECIFICATIONS Brakes Maximum load* 180 kg Front Air pressure (cold tire) up to 90 kg load* Type Single disc brake Front 150 kPa (1.50 kgf/cm , 1.50 bar) Operation Right hand Rear 150 kPa (1.50 kgf/cm , 1.50 bar) Fluid DOT 4 90 kg load–Maximum Rear...
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SPECIFICATIONS Electrical Ignition system C.D.I. Charging system Type A.C. magneto Standard output 14 V, 170W @ 5,000 r/min Battery Type GT6B-3 Voltage, capacity 12 V, 6 Ah Headlight bulb type Halogen bulb Bulb voltage, wattage × quantity 12 V, 60/55 W × 1 Headlight 12 V, 5/21 W ×...
SPECIFICATIONS EAU03941 Conversion table CONVERSION TABLE Conver s i o n t a bl e Conver s i o n t a bl e All specification data in this manual are listed in SI and METRIC TO IMPERIAL Metric unit Multiplier Imperial unit METRIC UNITS.
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. 1. KEY IDENTIFICATION 1. Key identification number 1.
CONSUMER INFORMATION 1. Model label EAU03757 Model label The model label is affixed to the loca- tion 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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YAMAHA MOTOR CO., LTD. PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2001·8–0.1×1(E)
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