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Read this manual carefully before operating this vehicle. OWNER’S MANUAL MT125 MT125A 5D7-F8199-E4...
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EAU46091 Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
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Yamaha a reputation for dependability. Please take the time to read this manual thoroughly, so as to enjoy all advantages of your MT125/MT125A. 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.
IMPORTANT MANUAL INFORMATION EAU10134 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.
TABLE OF CONTENTS SAFETY INFORMATION ....1-1 FOR YOUR SAFETY – Cast wheels ........6-19 PRE-OPERATION CHECKS .....4-1 Adjusting the clutch lever free DESCRIPTION ........2-1 play..........6-19 Left view ......... 2-1 OPERATION AND IMPORTANT Checking the front brake lever Right view........
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TABLE OF CONTENTS Replacing the fuses.......6-31 Replacing the headlight bulb..6-33 Auxiliary light .........6-34 Tail/brake light.......6-34 Replacing a turn signal light bulb ..........6-35 Replacing the license plate light bulb ..........6-35 Supporting the motorcycle....6-36 Front wheel (for non-ABS models) ........6-36 Rear wheel (for non-ABS models) ........6-38 Troubleshooting ......6-40 Troubleshooting charts ....6-41...
SAFETY INFORMATION Never operate a motorcycle with- pears to be very effective in reduc- EAU1028B out proper training or instruction. ing the chance of this type of Take a training course. Beginners accident. Be a Responsible Owner should receive training from a cer- Therefore: As the vehicle’s owner, you are re- tified instructor.
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SAFETY INFORMATION Many accidents involve inexperi- • Always signal before turning or Protective Apparel enced operators. In fact, many op- changing lanes. Make sure that The majority of fatalities from motorcy- erators who have been involved in other motorists can see you. cle accidents are the result of head in- ...
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• Never attach any large or heavy Do not run engine in poorly venti- Maximum load: items to the handlebar, front MT125 180 kg (397 lb) lated or partially enclosed areas fork, or front fender. These MT125A 178 kg (392 lb)
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Yamaha accessories, which are avail- performed to your vehicle that change able only from a Yamaha dealer, have any of the vehicle’s design or operation should be kept to a minimum. been designed, tested, and approved characteristics can put you and others •...
SAFETY INFORMATION Check that the fuel cock (if operator and may limit control ability, therefore, such accesso- equipped) is in the “OFF” position ries are not recommended. and that there are no fuel leaks. Use caution when adding electri- ...
INSTRUMENT AND CONTROL FUNCTIONS To lock the steering EAU10462 EAU10662 Main switch/steering lock All electrical systems are off. The key can be removed. EWA10062 WARNING Never turn the key to “OFF” or “LOCK” while the vehicle is moving. Otherwise the electrical systems will be switched off, which may result in loss of control or an accident.
” (for ABS models) 1. Turn the key to “ON”. 2. If the warning light does not come EAU11021 on, have a Yamaha dealer check Turn signal indicator light “ ” the electrical circuit. This indicator light flashes when the turn signal switch is pushed to the left or right.
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The ABS may not work correctly. If any damage. gine is not working correctly. If this oc- of the above occurs, have a Yamaha To activate or deactivate the tachome- curs, have a Yamaha dealer check the dealer check the system as soon as ter high-rpm warning light, hold the self-diagnosis system.
INSTRUMENT AND CONTROL FUNCTIONS a tachometer EAUM3422 Multi-function meter unit a clock a fuel meter FTRIP x1000r/min a coolant temperature meter km/h km/L/100km an odometer and tripmeter display a multi-function display RESET SELECT x1000r/min ...
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INSTRUMENT AND CONTROL FUNCTIONS ton to switch between kilometers High-rpm zone: 10000 r/min and 6. Push the “SELECT” button and and miles and then press the “SE- above then release it to start the clock. LECT” button for two seconds to confirm the setting.
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6-42 for further instruction. 3. Coolant temperature meter go off for 3 seconds repeatedly. If this occurs, have a Yamaha dealer check With the key in the “ON” position, the Odometer and tripmeter display the electrical circuit.
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INSTRUMENT AND CONTROL FUNCTIONS two tripmeters (which shows the change to the fuel reserve tripmeter Multi-function display distance traveled since last set to mode “F TRIP” and start counting the zero) distance traveled from that point. In a fuel reserve tripmeter (which that case, pushing the “SELECT”...
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INSTRUMENT AND CONTROL FUNCTIONS a warning message function “L/100 km”: The amount of fuel speed “AVE SPEED/__mph”, the oil a self-diagnosis device service reminder “DIST SERV/__miles” necessary to travel 100 km under in the following order: the current riding conditions is Push the “INFO”...
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INSTRUMENT AND CONTROL FUNCTIONS the UK only). Push the “INFO” button Average speed display play will also reset automatically 4 to switch between these display set- hours after the key was last turned to tings. “OFF”. “AVE_ _._ km/L”: The average dis- tance that can be traveled on 1.0 L Time tripmeter of fuel is shown.
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If the low battery indicator comes on SERV” mode flashes and then push ter that, and every 3000 km thereafter. have a Yamaha dealer check the bat- and hold the “RESET” button for at After changing the engine oil, reset the tery.
If the display indicates any error codes, HIGH TEMP →LOW FUEL →LOW note the code number, and then have BATT →OIL SERV a Yamaha dealer check the vehicle. ECA11591 NOTICE Push the “INFO” button to switch be- If the display indicates an error...
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INSTRUMENT AND CONTROL FUNCTIONS Right ter position. To cancel the turn signal EAUM3451 Info switch “INFO” lights, push the switch in after it has re- This switch is used to perform selec- turned to the center position. tions in the function display of the multi-function meter unit and to acti- EAU12501 Horn switch “...
INSTRUMENT AND CONTROL FUNCTIONS EAU12821 EAU12872 EAU12892 Clutch lever Shift pedal Brake lever ZAUM1200 ZAUM1201 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 on the right handlebar grip.
EAU60021 Brake pedal ABS (for ABS models) The ABS performs a self-diagno- The Yamaha ABS (Anti-lock Brake sis test each time the vehicle first System) features a dual electronic con- starts off after the key is turned to trol system, which acts on the front and “ON”...
INSTRUMENT AND CONTROL FUNCTIONS EAUM2082 Fuel tank cap The fuel tank cap cannot be installed unless the key is in the lock. In addi- tion, the key cannot be removed if the cap is not properly installed and locked. EWA11142 WARNING ZAUM1227 Make sure that the fuel tank cap is...
Gasoline is poisonous and can fuel expands when it heats up, Your Yamaha engine has been de- cause injury or death. Handle gaso- heat from the engine or the sun signed to use premium unleaded gas- line with care.
10% (E10). Gas- Do not park the vehicle near ohol containing methanol is possible fire hazards such as recommended by Yamaha because it grass or other materials that can cause damage to the fuel system easily burn. or vehicle performance problems.
Yamaha’s ignition circuit cut-off system has been designed to assist the operator in fulfilling the respon- sibility of raising the sidestand be- fore starting off.
INSTRUMENT AND CONTROL FUNCTIONS this system regularly and have a EAU44893 Ignition circuit cut-off system Yamaha dealer repair it if it does not The ignition circuit cut-off system function properly. (comprising the sidestand switch, clutch switch and neutral switch) has the following functions.
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INSTRUMENT AND CONTROL FUNCTIONS WARNING With the engine turned off: 1. Move the sidestand down. If a malfunction is noted, have a Yamaha 2. Make sure that the engine stop switch is set to “ ”. dealer check the system before riding.
• If necessary, add recommended coolant to specified level. 6-13 • Check cooling system for leakage. • Check operation. • If soft or spongy, have Yamaha dealer bleed hydraulic system. • Check brake pads for wear. Front brake • Replace if necessary.
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• Make sure that operation is smooth. • Check throttle grip free play. Throttle grip 6-15, 6-26 • If necessary, have Yamaha dealer adjust throttle grip free play and lubricate ca- ble and grip housing. • Make sure that operation is smooth. Control cables 6-26 •...
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• Correct if necessary. • Check operation of ignition circuit cut-off system. Sidestand switch 3-18 • If system is not working correctly, have Yamaha dealer check vehicle. • Check fluid level. Battery 6-30 • Fill with distilled water if necessary.
The neutral indi- repeatedly until it reaches the end of its cator light should come on. If not, travel, and then slightly raise it. ask a Yamaha dealer to check the electrical circuit. 3. Start the engine by pushing the start switch.
OPERATION AND IMPORTANT RIDING POINTS ECA10261 EAU16811 EAU16831 Tips for reducing fuel con- Engine break-in NOTICE 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).
Do not park near grass or other Keep the engine speed out of flammable materials which the tachometer red zone. might catch fire. If any engine trouble should oc- cur during the engine break-in period, immediately have a Yamaha dealer check the vehi- cle.
To avoid possible burns, let tivities incorrectly may increase brake components cool before your risk of injury or death during touching them. service or while using the vehicle. If you are not familiar with vehicle ser- vice, have a Yamaha dealer perform service.
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 tech- nical skills.
PERIODIC MAINTENANCE AND ADJUSTMENT EAU1771A General maintenance and lubrication chart 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) √ √...
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PERIODIC MAINTENANCE AND ADJUSTMENT 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 tread depth and for dam- age.
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PERIODIC MAINTENANCE AND ADJUSTMENT 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. √ √ √ √ √...
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PERIODIC MAINTENANCE AND ADJUSTMENT 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. • Check throttle grip free play, and √...
PERIODIC MAINTENANCE AND ADJUSTMENT EAU18782 Removing and installing cowl- ings The cowlings shown need to be re- moved to perform some of the mainte- FULL nance jobs described in this chapter. Refer to this section each time a cowl- ing needs to be removed and installed. ZAUM1219 ZAUM1205 1.
Do not attempt to 1. Spark plug gap diagnose such problems yourself. In- Spark plug gap: stead, have a Yamaha dealer check 1. Spark plug cap 0.7–0.8 mm (0.028–0.031 in) the vehicle. 2. Remove the spark plug as shown, with the spark plug wrench includ- ed in the owner’s tool kit.
PERIODIC MAINTENANCE AND ADJUSTMENT To install the spark plug EAUM3490 Engine oil and oil filter ele- 1. Clean the surface of the spark The engine oil should be between the ment plug gasket and its mating sur- minimum and maximum level marks. The engine oil level should be checked face, and then wipe off any grime before each ride.
PERIODIC MAINTENANCE AND ADJUSTMENT 4. If the engine oil is below the mini- mum level mark, add sufficient oil of the recommended type to raise it to the correct level. 5. Install the oil filler cap. To change the engine oil (with or without oil filter element replace- ment) ZAUM1229...
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PERIODIC MAINTENANCE AND ADJUSTMENT 9. Install the oil filter element cover 11. Refill with the specified amount of by installing the bolts, then tight- the recommended engine oil, and ening them to the specified then install and tighten the oil filler torque.
PERIODIC MAINTENANCE AND ADJUSTMENT 12. Start the engine, and then let it idle EAU20071 Coolant for several minutes while checking The coolant level should be checked it for oil leakage. If oil is leaking, before each ride. In addition, the cool- immediately turn the engine off ant must be changed at the intervals and check for the cause.
Yamaha dealer check the anti- chart. Have a Yamaha dealer replace freeze content of the coolant as the air filter element more frequently if soon as possible, otherwise the...
Check the engine idling speed and, if tle grip free play, turn the adjusting necessary, have it corrected by a nut in direction (b). Yamaha dealer. Engine idling speed: 1350–1550 r/min 1. Throttle grip free play The throttle grip free play should mea- ZAUM1208 1.
Tire air pressure (measured on cold from occurring, the valve clearance small area of road contact. Therefore, it tires): must be adjusted by a Yamaha dealer is essential to maintain the tires in good 0–90 kg (0–198 lb): Front: at the intervals specified in the periodic condition at all times and replace them 180 kPa (1.80 kgf/cm², 26 psi)
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“broken Tires age, even if they have not been wall is cracked, have a Yamaha dealer in” for it to develop its optimal used or have only been used occasion- replace the tire immediately.
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MICHELIN/PILOT STREET sure according to the operating Tire air valve: ed below have been approved for this conditions. TR412 model by Yamaha Motor Co., Ltd. Valve core: V3002 (original) EWA10601 WARNING This motorcycle is fitted with super- high-speed tires. Note the following points in order to make the most ef- ficient use of these tires.
5. Loosen the locknut at the crank- ride. If any damage is found, have case. a Yamaha dealer replace the wheel. Do not attempt even the smallest repair to the wheel. A de- 1. Clutch lever free play adjusting bolt formed or cracked wheel must be 2.
Periodically check the brake le- shown. Periodically check the brake ver free play and, if necessary, have a pedal free play and, if necessary, have Yamaha dealer check the brake sys- a Yamaha dealer adjust it. tem. EWAM1031 WARNING...
Rear brake EAU40262 Checking the brake fluid level peared, have a Yamaha dealer replace Before riding, check that the brake fluid the brake pads as a set. is above the minimum level mark. Check the brake fluid level with the top...
EAU22733 Changing the brake fluid id; otherwise, the rubber seals Yamaha dealer check the cause before Have a Yamaha dealer change the may deteriorate, causing leak- further riding. brake fluid at the intervals specified in age.
2. Shift the transmission into the To adjust the drive chain slack drive chain slack adjusting bolt on neutral position. Consult a Yamaha dealer before ad- each side of the swingarm in di- 3. Measure the drive chain slack at justing the drive chain slack.
PERIODIC MAINTENANCE AND ADJUSTMENT occurring, keep the drive chain may contain substances that EAU23026 Cleaning and lubricating the slack within the specified limits. could damage O-rings. drive chain [ECA10572] [ECA11112] The drive chain must be cleaned and lubricated at the intervals specified in Using the alignment marks on each the periodic maintenance and lubrica- side of the swingarm, make sure that...
EWA10732 Lithium-soap-based grease WARNING If the sidestand does not move up and down smoothly, have a Yamaha dealer check or repair it. Otherwise, the sidestand could contact the ground and distract the operator, re- sulting in a possible loss of control.
The swingarm pivots must be lubricat- at the intervals specified in the periodic ed by a Yamaha dealer at the intervals maintenance and lubrication chart. specified in the periodic maintenance and lubrication chart.
PERIODIC MAINTENANCE AND ADJUSTMENT Batteries produce explosive hy- EAU23315 Battery drogen gas. Therefore, keep The electrolyte should be between the A poorly maintained battery will cor- sparks, flames, cigarettes, etc., minimum and maximum level marks. rode and discharge quickly. The elec- away from the battery and pro- trolyte level, battery lead connections vide sufficient ventilation when...
PERIODIC MAINTENANCE AND ADJUSTMENT To store the battery If the breather hose is posi- EAUM3460 Replacing the fuses 1. If the motorcycle will not be used tioned in such a way that the The fuse boxes, which contains the for more than one month, remove frame is exposed to electrolyte fuses for the individual circuits, are lo- the battery, fully charge it, and...
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4. Radiator fan motor fuse the electrical circuit in question to 10.ABS motor fuse 5. Main fuse check if the device operates. 6. Backup fuse 4. If the fuse immediately blows 7. Spare fuse again, have a Yamaha dealer check the electrical system. 6-32...
PERIODIC MAINTENANCE AND ADJUSTMENT EAUM3501 Replacing the headlight bulb This model is equipped with a halogen bulb headlight. If the headlight bulb burns out, replace it as follows. ECA10651 NOTICE Take care not to damage the follow- ing parts: Headlight bulb ZAUM1221 1.
6. Install the headlight unit as shown, and then install the bolt on each side. Check the wire routing when headlight unit is installed in order to avoid wire pinching and coupler disconnection. ZAUM1224 7. Have a Yamaha dealer adjust the headlight beam if necessary. 6-34...
PERIODIC MAINTENANCE AND ADJUSTMENT EAU24205 EAUM3510 Replacing a turn signal light Replacing the license plate bulb light bulb 1. Remove the turn signal light lens 1. Remove the license plate light unit by removing the screw. by removing the screw. ZAUM1223 1.
EWA14841 WARNING when removing the front and rear wheel or performing other mainte- For the ABS model, have a Yamaha nance requiring the motorcycle to dealer remove and install the wheel. stand upright. Check that the motorcy- cle is in a stable and level position be- EAU56531 fore starting any maintenance.
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PERIODIC MAINTENANCE AND ADJUSTMENT 3. Remove the brake caliper by re- 7. Retighten the wheel axle pinch moving the bolts. NOTICE: Do bolt A to the specified torque. not apply the brake after the 8. Tighten the brake caliper bolts to wheel and brake disc have been the specified torques.
PERIODIC MAINTENANCE AND ADJUSTMENT EAU44802 Rear wheel (for non-ABS models) EWA14841 WARNING For the ABS model, have a Yamaha dealer remove and install the wheel. EAU56701 ZAUM1193 1. Axle nut 1. Drive chain slack adjusting bolt 2. Drive chain slack adjusting bolt 2.
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PERIODIC MAINTENANCE AND ADJUSTMENT Make sure that there is enough Tightening torques: space between the brake pads Axle nut: If the drive chain is difficult to re- before installing the wheel. 85 Nm (8.5 m·kgf, 61 ft·lbf) move, remove the wheel axle first, Locknut: and then lift the wheel upward 16 Nm (1.6 m·kgf, 12 ft·lbf)
The following troubleshooting charts represent quick and easy procedures for checking these vital systems your- self. 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.
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.
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Start the engine. If the engine overheats again, have a The coolant level Yamaha dealer check and repair the cooling system. is OK. If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool- ant as soon as possible.
Some models are equipped with matte colored finished parts. Be ble. Rust and corrosion can develop Cleaning sure to consult a Yamaha dealer for even if high-quality components are ECA10773 NOTICE advice on what products to use be- used.
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MOTORCYCLE CARE AND STORAGE off any detergent residue using shield. Test the product on a plenty of water, as it is harmful small hidden part of the wind- Salt sprayed on roads in the winter to plastic parts. shield to make sure that it does may remain well into spring.
EWA11132 poorly ventilated room or cover- WARNING ing it with a tarp, while it is still Consult a Yamaha dealer for ad- Contaminants on the brakes or tires wet, will allow water and humid- can cause loss of control.
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MOTORCYCLE CARE AND STORAGE 2. Fill up the fuel tank and add fuel 4. Lubricate all control cables and stabilizer (if available) to prevent the pivoting points of all levers and the fuel tank from rusting and the pedals as well as of the side- fuel from deteriorating.
Model label Record the vehicle identification num- ber 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: ZAUM1216 ZAUM1225 1.