Yamaha T155 2021 Owner'S Manual Download

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Important manual information

EAU10134

Particularly important information is distinguished in this manual by the following notations:

*Product and specifications are subject to change without notice.

This is the safety alert sym

ol. It is use

to alert you to potential personal injury

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ey all safety messa

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possi

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eath.

A WARNING in

icates a hazar

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result in

eath or serious injury.

A NOTICE in

icates special precautions that must

e taken to avoi

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vehicle or other property.

A TIP provides key information to make procedures easier or clearer.

WARNING

NOTICE

TIP

UBAWE0E0.book Page 1 Wednesday, March 3, 2021 2:21 PM

Summary of Contents for T155 2021

Page 1: ...OTORCYCLE OWNER S MANUAL Specifications Consumer information Motorcycle care and storage Periodic maintenance and adjustment For your safety pre operation checks Instrument and control functions Description Safety information Location of important labels Operation and important riding points Index English E ...

Page 2: ...EAU46094 Read this manual carefully before operating this vehicle This manual should stay with this vehicle if it is sold UBAWE0E0 book Page 1 Wednesday March 3 2021 2 21 PM ...

Page 3: ...addition the many tips given in this manual will help keep your motorcycle in the best possible condition If you have any further questions do not hesitate to contact your Yamaha dealer The Yamaha team wishes you many safe and pleasant rides So remember to put safety first Yamaha continually seeks advancements in product design and quality Therefore while this manual contains the most cur rent pro...

Page 4: ...ntial personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death A WARNING indicates a hazardous situation which if not avoided could result in death or serious injury A NOTICE indicates special precautions that must be taken to avoid damage to the vehicle or other property A TIP provides key information to make procedures easier or clearer WARNING N...

Page 5: ...by Yamaha Motor Vietnam Co Ltd 1st edition April 2021 All rights reserved Any reprinting or unauthorized use without the written permission of Yamaha Motor Vietnam Co Ltd is expressly prohibited Printed in Vietnam UBAWE0E0 book Page 2 Wednesday March 3 2021 2 21 PM ...

Page 6: ...nance and lubrication chart 7 4 Removing and installing the cowling and panels 7 8 Checking the spark plug 7 9 Engine oil and oil filter element 7 10 Why Yamalube 7 13 Coolant 7 13 Replacing the air filter element 7 14 Adjusting the engine idling speed 7 15 Adjusting the throttle grip free play 7 15 Valve clearance 7 16 Tires 7 16 Cast wheels 7 18 Adjusting the clutch lever free play 7 18 Checking...

Page 7: ...nse plate light bulb 7 34 Front wheel 7 34 Rear wheel 7 35 Troubleshooting 7 36 Troubleshooting chart 7 38 Motorcycle care and storage 8 1 Matte color caution 8 1 Care 8 1 Storage 8 3 Specifications 9 1 Consumer information 10 1 Identification numbers 10 1 Diagnostic connector 10 2 Vehicle data recording 10 2 Index 11 1 UBAWE0E0 book Page 2 Wednesday March 3 2021 2 21 PM ...

Page 8: ...icle They contain important information for safe and proper operation of your vehicle Never remove any labels from your vehicle If a label becomes difficult to read or comes off a replacement label is available from your Yamaha dealer 2 3 4 1 UBAWE0E0 book Page 1 Wednesday March 3 2021 2 21 PM ...

Page 9: ...ant labels 1 2 1 1 B15 F1568 00 2 3 4 100kPa 1bar kPa psi kPa psi 225 33 250 36 225 33 250 36 1WD F1668 01 ข อควรระวัง ห ามล างรถ จักรยานยนต ขณะเบาะเปิดอยู B15 F815P 00 UBAWE0E0 book Page 2 Wednesday March 3 2021 2 21 PM ...

Page 10: ...ou Safe Riding Perform the pre operation checks each time you use the vehicle to make sure it is in safe operating condition Failure to inspect or maintain the vehi cle properly increases the possibility of an accident or equipment damage See page 5 1 for a list of pre operation checks This motorcycle is designed to carry the operator and a passen ger The failure of motorists to detect and recogni...

Page 11: ... main tain control of the motorcycle The passenger should always hold onto the operator the seat strap or grab bar if equipped with both hands and keep both feet on the passenger footrests Never carry a passenger unless he or she can firmly place both feet on the passenger footrests Never ride under the influence of alcohol or other drugs This motorcycle is designed for on road use only It is not ...

Page 12: ...cle is changed To avoid the possibility of an accident use extreme caution when adding cargo or accessories to your motorcycle Use extra care when riding a motorcycle that has added cargo or accessories Here along with the information about accessories below are some general guidelines to follow if loading cargo to your motorcycle The total weight of the operator pas senger accessories and cargo m...

Page 13: ...change any of the vehicle s design or operation characteristics can put you and others at greater risk of serious injury or death You are responsible for injuries related to changes in the vehicle Keep the following guidelines in mind as well as those provided under Load ing when mounting accessories Never install accessories or carry cargo that would impair the per formance of your motorcycle Car...

Page 14: ...t are attached to solid parts of the mo torcycle such as the frame or up per front fork triple clamp and not for example to rubber mounted handlebars or turn signals or parts that could break Choose the location for the straps carefully so the straps will not rub against painted surfaces during transport The suspension should be com pressed somewhat by the tie downs if possible so that the mo torc...

Page 15: ...rity of fatalities from motorcycle or scooter accidents are the result of head injuries The use of a safety hel met is the single most critical factor in the prevention or reduction of head in juries Always select an approved motorcy cle helmet Pay attention to the following when choosing a motorcycle helmet The helmet must meet the safety standard TIS The helmet size must match the size of the ri...

Page 16: ...nformation 2 7 2 Full type use only for riding at low to mid range speeds Full face type use for riding at mid range to high speeds ZAUU0004 ZAUU0005 ZAUU0006 UBAWE0E0 book Page 7 Wednesday March 3 2021 2 21 PM ...

Page 17: ...light 4 Headlight low beam 5 Air filter element page 7 14 6 Battery page 7 29 7 Tool kit page 7 1 8 Rear turn signal light page 7 33 9 Tail brake light 10 Centerstand page 7 27 11 Sidestand page 4 14 12 Shift pedal page 4 9 13 Engine oil drain bolt page 7 10 14 Coolant reservoir page 7 13 UBAWE0E0 book Page 1 Wednesday March 3 2021 2 21 PM ...

Page 18: ...Fuel tank cap page 4 10 2 Fuses page 7 31 3 Front brake fluid reservoir page 7 22 4 Engine oil filter element page 7 10 5 Brake pedal page 4 10 6 Dipstick page 7 10 7 Rear brake fluid reservoir page 7 22 UBAWE0E0 book Page 2 Wednesday March 3 2021 2 21 PM ...

Page 19: ...1 Clutch lever page 4 9 2 Left handlebar switches page 4 8 3 Multi function display page 4 4 4 Right handlebar switches page 4 8 5 Brake lever page 4 10 6 Throttle grip page 7 15 7 Main switch steering lock page 4 1 UBAWE0E0 book Page 3 Wednesday March 3 2021 2 21 PM ...

Page 20: ...e running This model is equipped with a fuel pump When the vehicle is first turned on a noise from the fuel pump can be heard but this is not a malfunction EAU45752 OFF All electrical systems are off The key can be removed WARNING EWA10073 Never turn the key to OFF while the vehicle is moving otherwise the electrical systems will be switched off which may result in loss of con trol or an accident ...

Page 21: ...vehicle turns over and af ter placing it upright ensure that there is no fuel leakage If fuel is leaking have a Yamaha dealer check the vehicle EAUU0822 Keyhole cover To open the keyhole cover Insert the key head into the keyhole cover receptacle as shown and then turn the key to the right to open the cover To close the keyhole cover Press the PUSH SHUT button to close the keyhole cover OFF LOCK Z...

Page 22: ... on or off according to the coolant tempera ture TIP When the vehicle is turned on the light will come on for a few seconds and then go off If the light does not come on or if the light remains on have a Yamaha dealer check the vehicle NOTICE ECA10022 Do not continue to operate the en gine if it is overheating EAU77562 Engine trouble warning light This warning light comes on if a prob lem is detec...

Page 23: ...onitor the engine speed and keep it within the ideal power range NOTICE ECA23050 Do not operate the engine in the ta chometer high r min zone High r min zone 11000 r min and above EAU87220 Fuel meter The fuel meter indicates the amount of fuel in the fuel tank The display seg ments of the fuel meter disappear from F full towards E empty as the fuel level decreases When approximately 1 Transmission...

Page 24: ... light EAU87561 Multi function display The multi function display is equipped with the following an odometer ODO two tripmeters TRIP 1 and TRIP 2 a fuel reserve tripmeter TRIP F a clock an instantaneous fuel consump tion display km L or L 100 km an average fuel consumption dis play AVE_ _ _ km L or AVE_ _ _ L 100 km an average speed display AVE_ _ _ km h Push the RESET SELECT button to change the ...

Page 25: ...ntil it is reset TIP The tripmeters will reset and continue counting after 9999 9 is reached EAUN2960 Clock The clock uses a 12 hour time system To set the clock 1 Push the RESET SELECT but ton until the hour digits start flash ing 2 Use the RESET SELECT button to set the hours 3 Push the RESET SELECT but ton until the minute digits start flashing 4 Use the RESET SELECT button to set the minutes 5...

Page 26: ...6 mi h _ _ _ is displayed EAU87790 TIP The instantaneous fuel consumption function should be used for general reference only Do not use this figure to estimate the distance that can be trav eled on the current tank of fuel EAU87811 Average fuel consumption display This display shows the average fuel consumption since it was last reset To reset the display push the RE SET SELECT button until it res...

Page 27: ...and turn push this switch to To signal a left hand turn push this switch to When released the switch returns to the cen ter position To cancel the turn signal lights push the switch in after it has re turned to the center position EAU12501 Horn switch Press this switch to sound the horn EAU12664 Engine stop switch Set this switch to run before starting the engine Set this switch to stop to stop th...

Page 28: ...h of time with the en gine not running otherwise the bat tery may discharge EAU31642 Clutch lever The clutch lever is located on the left side of the handlebar 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 The clutch lever is equipped with a clutch switch whi...

Page 29: ...o apply the rear brake press down on the brake pedal EAU37474 Fuel tank cap To remove the fuel tank cap 1 Open the seat See page 4 12 2 Turn the fuel tank cap counter clockwise and pull it off To install the fuel tank cap 1 Insert the fuel tank cap into the tank opening and turn it clockwise until the marks on the cap and tank cover are aligned 2 Close the seat 1 Brake lever 1 1 Brake pedal 1 1 Fu...

Page 30: ...i cinity of sparks open flames or other sources of ignition such as the pilot lights of water heaters and clothes dryers 2 Do not overfill the fuel tank 3 Wipe up any spilled fuel immedi ately NOTICE Immediately wipe off spilled fuel with a clean dry soft cloth since fuel may deteriorate painted surfaces or plastic parts ECA10072 4 Be sure to securely close the fuel tank cap WARNING EWA15152 Gasol...

Page 31: ...ark the vehicle near possible fire hazards such as grass or other materials that easily burn Park the vehicle in a place where pedestrians or children are not likely to touch the hot exhaust system Make sure that the exhaust sys tem has cooled down before doing any maintenance work Do not allow the engine to idle more than a few minutes Long idling can cause a build up of heat EAUU0373 Seat To ope...

Page 32: ...the seat To secure a helmet to a helmet hold er 1 Open the seat See page 4 12 2 Attach the D ring of the helmet strap to a helmet holder and then securely close the seat WARNING Never ride with a helmet attached to the helmet holder since the helmet may hit objects causing loss of control and possibly an accident EWA10162 To release a helmet from a helmet holder Open the seat remove the helmet fro...

Page 33: ... your foot while holding the vehicle upright WARNING EWA14191 The vehicle must not be ridden with the sidestand down or if the side stand cannot be properly moved up or does not stay up otherwise the sidestand could contact the ground and distract the operator resulting in a possible loss of control EAU15397 Starting circuit cut off system This system prevents in gear engine starts unless the clut...

Page 34: ...idden until checked by a Yamaha dealer 5 Stop the engine 6 Set engine stop switch to run position 7 Shift transmission into gear 8 Pull the clutch lever 9 Push the start switch Does the engine start The clutch switch may not be working The vehicle should not be ridden until checked by a Yamaha dealer NO YES The system is OK The motorcycle can be ridden YES NO If a malfunction is found have the veh...

Page 35: ...cted by a Yamaha dealer Before using this vehicle check the following points ITEM CHECKS PAGE Fuel Refuel if necessary Check fuel line for leakage 4 11 Engine oil Check oil level in engine If necessary add recommended oil to specified level Check vehicle for oil leakage 7 10 Coolant Check coolant level in reservoir If necessary add recommended coolant to specified level Check cooling system for le...

Page 36: ...ust throttle grip free play and lubricate ca ble and grip housing 7 15 7 26 Control cables Make sure that operation is smooth Lubricate if necessary 7 25 Drive chain Check chain slack Adjust if necessary Check chain condition Lubricate if necessary 7 23 7 25 Wheels and tires Check for damage Check tire condition and tread depth Check air pressure Correct if necessary 7 16 7 18 Shift pedal Make sur...

Page 37: ...s smooth Lubricate pivots if necessary 7 27 Chassis fasteners Make sure that all nuts bolts and screws are properly tightened Tighten if necessary Instruments lights signals and switches Check operation Correct if necessary ITEM CHECKS PAGE UBAWE0E0 book Page 3 Wednesday March 3 2021 2 21 PM ...

Page 38: ...he first 1600 km 1000 mi The various parts in the engine wear and polish themselves to the correct operating clearances During this period prolonged full throt tle operation or any condition that might result in engine overheating must be avoided EAU17104 0 1000 km 0 600 mi Avoid prolonged operation above 5000 r min NOTICE After 1000 km 600 mi of operation the engine oil must be changed and the oi...

Page 39: ...rate the vehi cle if a warning light remains on Have a Yamaha dealer check the ve hicle 3 Shift the transmission into the neutral position 4 Start the engine by pushing the start switch 5 Release the start switch when the engine starts or after 5 seconds Wait 10 seconds before pressing the switch again to allow battery voltage to restore NOTICE ECA11043 For maximum engine life never ac celerate ha...

Page 40: ...dal down repeatedly until it reaches the end of its travel and then slightly raise it NOTICE ECA10261 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 dis tances The transmission is properly lubricated only when the engine is running Inade quate lubrication may damage the transmission Always use the ...

Page 41: ...g it idle for an extended length of time e g in traffic jams at traf fic lights or at railroad crossings EAU17214 Parking When parking stop the engine and then remove the key from the main switch WARNING EWA10312 Since the engine and exhaust system can become very hot park in a place where pedestri ans or children are not likely to touch them and be burned Do not park on a slope or on soft ground ...

Page 42: ...service WARNING EWA15123 Turn off the engine when performing maintenance unless otherwise specified A running engine has moving parts that can catch on body parts or clothing and electrical parts that can cause shocks or fires Running the engine while ser vicing can lead to eye injury burns fire or carbon monoxide poisoning possibly leading to death See page 2 3 for more in formation about carbon ...

Page 43: ...control system NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING whichever comes first ANNUAL CHECK 1000 km or 2 months 4000 km or 6 months 8000 km or 10 months 12000 km or 14 months 16000 km or 18 months 1 Fuel line Check fuel hose for cracks or damage 2 Fuel filter Check condition Replace if necessary Every 12000 km 7500 mi 3 Spark plug Check condition Clean and regap Replace Every 8000 km 5000 ...

Page 44: ... if necessary Replace gasket s if necessary NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING whichever comes first ANNUAL CHECK 1000 km or 2 months 4000 km or 6 months 8000 km or 10 months 12000 km or 14 months 16000 km or 18 months UBAWE0E0 book Page 3 Wednesday March 3 2021 2 21 PM ...

Page 45: ...ace Every 12000 km 7500 mi 3 Air filter check hose Clean 4 Battery Check voltage Charge if necessary 5 Clutch Check operation Adjust 6 Front brake Check operation fluid level and vehicle for fluid leakage Replace brake pads Whenever worn to the limit 7 Rear brake Check operation fluid level and vehicle for fluid leakage Replace brake pads Whenever worn to the limit 8 Brake hose Check for cracks or...

Page 46: ... 600 mi and after washing the motorcycle riding in the rain or riding in wet areas 15 Steering bearings Check bearing play and steering for roughness Lubricate with lithium soap based grease Every 24000 km 15000 mi 16 Chassis fasteners Make sure that all nuts bolts and screws are properly tightened 17 Brake lever pivot shaft Lubricate with silicone grease 18 Brake pedal pivot shaft Lubricate with ...

Page 47: ...r oil leakage 23 Engine oil Change Check oil level and vehicle for oil leakage 24 Engine oil filter ele ment Replace 25 Cooling system Check coolant level and vehicle for coolant leakage Change with Yamaha genuine coolant Every 3 years 26 Front and rear brake switches Check operation 27 Moving parts and cables Lubricate NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING whichever comes first ANNUAL...

Page 48: ... and change the brake fluid Replace the brake hoses every four years and if cracked or damaged 28 Throttle grip Check operation Check throttle grip free play and adjust if necessary Lubricate cable and grip housing 29 Lights signals and switches Check operation Adjust headlight beam NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING whichever comes first ANNUAL CHECK 1000 km or 2 months 4000 km or ...

Page 49: ... cowling Remove the screws and quick fasten er then take the cowling off To install the cowling Place the cowling in the original posi tion then install the quick fastener and screws EAUV0931 Panel A and B To remove the panel Remove the screws and then pull the panel off as shown To install the panel Place the panel in the original position and then install the screws 1 Cowling A 2 Panel A 1 2 1 P...

Page 50: ...check the spark plug 1 Check that the porcelain insulator around the center electrode of the spark plug is a medium to light tan the ideal color when the vehi cle is ridden normally TIP If the spark plug shows a distinctly dif ferent color the engine could be oper ating improperly Do not attempt to diagnose such problems yourself In stead have a Yamaha dealer check the vehicle 2 Check the spark pl...

Page 51: ...h ride In addition the oil must be changed and the oil filter ele ment replaced at the intervals specified in the periodic maintenance and lubri cation chart To check the engine oil level 1 Place the vehicle on the center stand A slight tilt to the side can result in a false reading 2 Start the engine warm it up for several minutes and then turn it off 3 Wait a few minutes until the oil set tles r...

Page 52: ... ring compression spring and en gine oil strainer to drain the oil from the crankcase NOTICE When removing the engine oil drain bolt the O ring compres sion spring and oil strainer will fall out Take care not to lose these parts ECA11002 4 Clean the engine oil strainer with solvent and then check it for damage and replace it if neces sary TIP Skip steps 5 7 if the oil filter element is not being r...

Page 53: ...1 In order to prevent clutch slip page since the engine oil also lubricates the clutch do not mix any chemical additives Do not use oils with a diesel speci fication of CD or oils of a high er quality than specified In addition do not use oils labeled ENERGY CONSERVING II or higher Make sure that no foreign mate rial enters the crankcase 10 Start the engine and then let it idle for several minutes...

Page 54: ...als specified in the periodic maintenance and lubrication chart EAU40047 To check the coolant level 1 Place the vehicle on the center stand TIP The coolant level must be checked on a cold engine since the level varies with engine tem perature Make sure that the vehicle is posi tioned straight up when checking the coolant level A slight tilt to the side can result in an incorrect reading 2 Check th...

Page 55: ...oolant The coolant must be changed at the in tervals specified in the periodic main tenance and lubrication chart Have a Yamaha dealer change the coolant WARNING Never attempt to remove the radiator cap when the engine is hot EWA10382 EAUT1991 Replacing the air filter ele ment The air filter element must be replaced and the check hoses must be cleaned at the intervals specified in the periodic mai...

Page 56: ...the screw in direction a To decrease the engine idling speed turn the screw in direction b TIP If the specified idling speed cannot be obtained as described above have a Yamaha dealer make the adjustment EAU48434 Adjusting the throttle grip free play Measure the throttle grip free play as shown Periodically check the throttle grip free play and if necessary adjust it as fol lows 1 Idle adjusting s...

Page 57: ... from occurring have your Yamaha dealer check and adjust the valve clearance at regular intervals TIP This service must be performed when the engine is cold EAU82721 Tires Tires are the only contact between the vehicle and the road Safety in all con ditions of riding depends on a relatively small area of road contact Therefore it is essential to maintain the tires in good condition at all times an...

Page 58: ... who has the necessary professional knowl edge and experience to do so Ride at moderate speeds after changing a tire since the tire surface must first be broken in for it to develop its optimal characteristics Tire information This model is equipped with tubeless tires and tire air valves Tires age even if they have not been used or have only been used occasion ally Cracking of the tread and sidew...

Page 59: ...he smallest repair to the wheel A de formed or cracked wheel must be replaced The wheel should be balanced whenever either the tire or wheel has been changed or replaced An unbalanced wheel can result in poor performance adverse han dling characteristics and a short ened tire life EAU65840 Adjusting the clutch lever free play The clutch lever free play should mea sure 8 0 12 0 mm 0 31 0 47 in as s...

Page 60: ...n the locknut at the crank case 8 Tighten the locknut at the clutch lever 9 Install the cowling EAU37914 Checking the brake lever free play There should be no free play at the brake lever end If there is free play have a Yamaha dealer inspect the brake system WARNING EWA14212 A soft or spongy feeling in the brake lever can indicate the presence of air in the hydraulic system If there is air in the...

Page 61: ...s connected to the brake lever and brake pedal Check that the brake light comes on just before braking takes ef fect If necessary adjust the rear brake light switch as follows Turn the rear brake light switch adjust ing nut while holding the rear brake light switch in place To make the brake light come on earlier turn the ad justing nut in direction a To make the brake light come on later turn the...

Page 62: ...ear check the wear indicator grooves If a brake pad has worn to the point that the wear indicator grooves have almost disap peared have a Yamaha dealer replace the brake pads as a set EAUV1070 Rear brake pads Each rear brake pad is provided with a brake pad wear limit line which allows you to check the brake pad wear with out having to disassemble the brake To check the brake pad wear check the br...

Page 63: ...ay deteriorate causing leak age Refill with the same type of brake fluid Adding a brake fluid other than DOT 3 or DOT 4 may result in a harmful chemical re action Be careful that water does not enter the brake fluid reservoir when refilling Water will signifi cantly lower the boiling point of the fluid and may result in vapor lock NOTICE ECA17641 Brake fluid may damage painted surfaces or plastic ...

Page 64: ...s the brake hose replaced at the intervals listed below or whenev er they are damaged or leaking Brake seals Replace every two years Brake hose Replace every four years EAU22762 Drive chain slack The drive chain slack should be checked before each ride and adjusted if necessary EAU22799 To check the drive chain slack 1 Place the motorcycle on the cen terstand 2 Shift the transmission into the neut...

Page 65: ...cket bolt 2 To tighten the drive chain turn the drive chain slack adjusting nut at each end of the swingarm in direc tion a To loosen the drive chain turn the adjusting nut at each end of the swingarm in direction b and then push the rear wheel for ward TIP Using the alignment marks on each drive chain puller make sure that both chain pullers are in the same position for proper wheel alignment 3 T...

Page 66: ...solvent 2 Spray Yamaha chain lubricant or other suitable chain lubricant on the entire chain making sure that all side plates and rollers have been sufficiently oiled EAU23098 Checking and lubricating the cables The operation of all control cables and the condition of the cables should be checked before each ride and the ca bles and cable ends should be lubri cated if necessary If a cable is damag...

Page 67: ...cover is installed correctly it does not completely protect the cable from wa ter entry Therefore use care not to pour water directly onto the cover or cable when washing the vehicle If the cable or cover becomes dirty wipe clean with a moist cloth EAU23144 Checking and lubricating the brake and clutch levers The operation of the brake and clutch levers should be checked before each ride and the l...

Page 68: ...d should be checked before each ride and the pivots and metal to metal contact surfaces should be lubri cated if necessary WARNING EWA10742 If the centerstand or sidestand does not move up and down smoothly have a Yamaha dealer check or re pair it Otherwise the centerstand or sidestand could contact the ground and distract the operator resulting in a possible loss of control Recommended lubricant ...

Page 69: ...k the inner tubes for scratches damage and excessive oil leakage To check the operation 1 Place the vehicle on a level sur face and hold it in an upright posi tion WARNING To avoid injury securely support the vehicle so there is no danger of it falling over EWA10752 2 While applying the front brake push down hard on the handle bars several times to check if the front fork compresses and re bounds ...

Page 70: ...ing the wheel bearings The front and rear wheel bearings must be checked at the intervals specified in the periodic maintenance and lubrica tion 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 EAU50292 Battery The battery is located under the seat See page 4 12 This model is equipped with a VRLA Valve Regulated Lead Acid ...

Page 71: ...es NOTICE ECA16522 To charge a VRLA Valve Regulated Lead Acid battery a special con stant voltage battery charger is re quired Using a conventional battery charger will damage the battery 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 NOTICE When removing the battery be sure to turn the main sw...

Page 72: ...ge rating than recommended to avoid causing extensive dam age to the electrical system and possibly a fire EWA15132 5 Turn the main switch on and then turn on the electrical circuit in question to check if the device op erates TIP If the fuse immediately blows again have a Yamaha dealer check the elec trical system 1 Screw 2 Battery cover 1 Fuse box 1 2 1 1 Main fuse 2 Signal fuse 3 Spare fuse 3 1...

Page 73: ...ted film or stickers to the headlight lens EAUV0560 Replacing a front turn signal light bulb NOTICE ECA10671 It is advisable to have a Yamaha dealer perform this job 1 Place the vehicle on the center stand 2 Remove panel A and B See page 7 8 3 Remove the turn signal light bulb socket together with the bulb by turning it counterclockwise 4 Remove the burnt out bulb by pulling it out 5 Insert a new ...

Page 74: ...ket together with the turn signal light bulb by turn ing it counterclockwise 3 Remove the burnt out bulb by pulling it outward 4 Insert a new bulb into the socket 5 Install the socket together with the bulb by turning it clockwise 6 Install the turn signal light unit by installing the screw NOTICE Do not overtighten the screw oth erwise the lens may break ECA11192 1 Screw 1 1 Turn signal light bul...

Page 75: ...e socket together with the bulb by pushing it in 6 Install the license plate light unit by installing the screw EAU24361 Front wheel EAU60841 To remove the front wheel WARNING EWA10822 To avoid injury securely support the vehicle so there is no danger of it falling over 1 Place the motorcycle on the cen terstand 2 Remove the axle nut 3 Pull the wheel axle out and then remove the wheel NOTICE Do no...

Page 76: ...remove the rear wheel WARNING EWA10822 To avoid injury securely support the vehicle so there is no danger of it falling over 1 Loosen the locknut and drive chain slack adjusting nut on each side of the swingarm 2 Loosen the axle nut and the brake caliper bracket bolt 3 Place the motorcycle on the cen terstand 4 Remove the axle nut 5 Push the wheel forward and then remove the drive chain from the r...

Page 77: ...d torques EAU25872 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 charts represent quick and easy procedures for checking these vital systems your self However shoul...

Page 78: ...iodic maintenance and adjustment 7 37 7 heaters or furnaces Gasoline or gasoline vapors can ignite or ex plode causing severe injury or prop erty damage UBAWE0E0 book Page 37 Wednesday March 3 2021 2 21 PM ...

Page 79: ...e a Yamaha dealer check the vehicle Remove the spark plug and check the electrodes 3 Ignition Wipe off with a dry cloth and correct the spark plug gap or replace the spark plug s Have a Yamaha dealer check the vehicle The engine does not start Check the compression Operate the electric starter 2 Battery The engine turns over quickly The engine turns over slowly The battery is good Dry Wet Try star...

Page 80: ...topped press down on the cap while turning it counterclockwise and then remove the cap TIP 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 Wait until the engine has cooled Check the coolant level in the reservoir and radiator The coolant level is OK The coolant level is low Check the cooling system fo...

Page 81: ...n tenance products are sold under the YAMALUBE brand in many markets worldwide See your Yamaha dealer for addi tional cleaning tips NOTICE ECA26280 Improper cleaning can cause cos metic and mechanical damage Do not use high pressure washers or steam jet cleaners Excessive water pressure may cause wa ter seepage and deterioration of wheel bearings brakes trans mission seals and electrical de vices ...

Page 82: ...ield with a soft towel or sponge dampened with water and a pH neutral detergent If necessary use a high quality windshield cleaner or polish for motorcycles NOTICE Never use any strong chemicals to clean the windshield Additionally some cleaning compounds for plastic may scratch the wind shield so be sure to test all cleaning products before gen eral application ECA26310 4 Rinse off thoroughly wit...

Page 83: ...akes or tires If necessary wash the tires with warm water and a mild deter gent If necessary clean the brake discs and pads with brake cleaner or acetone Before riding at higher speeds test the vehicle s braking per formance and cornering behav ior EAU83472 Storage Always store the vehicle in a cool dry place If necessary protect it against dust with a porous cover Be sure the engine and the exhau...

Page 84: ...his will limit spark ing during the next step d Turn the engine over several times with the starter This will coat the cylinder wall with oil WARNING To prevent dam age or injury from sparking make sure to ground the spark plug electrodes while turning the engine over EWA10952 e Remove the spark plug cap from the spark plug and then install the spark plug and the spark plug cap 7 Lubricate all con...

Page 85: ...Engine oil quantity Oil change 0 85 L 0 90 US qt 0 75 Imp qt With oil filter removal 0 95 L 1 00 US qt 0 84 Imp qt Coolant quantity Coolant reservoir up to the maximum level mark 0 16 L 0 17 US qt 0 14 Imp qt Radiator including all routes 0 41 L 0 43 US qt 0 36 Imp qt Fuel Recommended fuel Regular unleaded gasoline E10 to E20 only Octane number RON 90 Fuel tank capacity 5 4 L 1 4 US gal 1 2 Imp ga...

Page 86: ...ingle disc brake Front suspension Type Telescopic fork Rear suspension Type Swingarm Electrical system System voltage 12 V Battery Model GTZ5S Voltage capacity 12 V 3 5 Ah 10 HR Bulb wattage Headlight LED Brake tail light LED Front turn signal light 10 0 W Rear turn signal light 10 0 W Auxiliary light LED License plate light 5 0 W UBAWE0E0 book Page 2 Wednesday March 3 2021 2 21 PM ...

Page 87: ...E SERIAL NUMBER EAUV0540 Vehicle identification number The vehicle identification number is stamped into the frame under the seat See page 4 12 TIP The vehicle identification number is used to identify your vehicle and may be used to register it with the licensing authority in your area EAUU1221 Engine serial number The engine serial number is stamped on the bottom left side of the crank case 1 Ve...

Page 88: ...ha diagnostic tool is at tached to the vehicle such as when maintenance checks or service proce dures are performed Yamaha will not disclose this data to a third party except in the following cas es In addition Yamaha may provide vehicle data to a contractor in order to outsource services related to the han dling of vehicle data Even in this case Yamaha will require the contractor to properly hand...

Page 89: ... fork checking 7 28 Fuel 4 11 Fuel consumption tips for reducing 6 4 Fuel meter 4 4 Fuel tank cap 4 10 Fuses replacing 7 31 H Handlebar switches 4 8 Hazard lights switch 4 9 Helmet holders 4 13 Helmets 2 6 High beam indicator light 4 3 Horn switch 4 8 I Identification numbers 10 1 Indicator lights and warning lights 4 3 K Keyhole cover 4 2 L Labels location 1 1 License plate light bulb replacing 7...

Page 90: ...signal light bulb front replacing 7 32 Turn signal light bulb rear replacing 7 33 Turn signal switch 4 8 V Valve clearance 7 16 Vehicle identification number 10 1 Vehicle lights 7 32 VVA indicator 4 5 W Wheel bearings checking 7 29 Wheel front 7 34 Wheel rear 7 35 Wheels 7 18 Y Yamalube 7 13 UBAWE0E0 book Page 2 Wednesday March 3 2021 2 21 PM ...

Page 91: ...UBAWE0E0 book Page 3 Wednesday March 3 2021 2 21 PM ...

Page 92: ...DIC183 ...

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Summary of Contents for T155 2021

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Yamaha T155 2021, Owner'S Manual

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Summary of Contents for T155 2021

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