Yamaha YZF155 Owner'S Manual Download

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Perio

ic maintenance an

justment

8-5

Clutch lever pivot
shaft

• Lubricate with silicone grease.



Shift pe

al pivot

shaft

• Lubricate with lithium-soap-

based grease.



estan

• Check operation.
• Lubricate with lithium-soap-

based grease.



Front fork

• Check operation and for oil leak-

age.



Shock a

sor

er as-

sem

• Check operation and shock ab-

sorber for oil leakage.



ine oil

• Change.
• Check oil level and vehicle for oil

leakage.



ine oil filter ele-

ment

• Replace.



Coolin

system

• Check coolant level and vehicle

for coolant leakage.



• Change coolant.

Every 3 years

Front an

rear

rake switches

• Check operation.



Movin

parts an

les

• Lubricate.



NO.

ITEM

CHECK OR MAINTENANCE JOB

ODOMETER READING (whichever comes first)

ANNUAL

CHECK

1000 km

2 months

4000 km

6 months

8000 km

10 months

12000 km

14 months

16000 km

18 months

UBNCEYE0.book Page 5 Thursday, September 16, 2021 3:25 PM

Summary of Contents for YZF155

Page 1: ...DIC183 OWNER S MANUAL YZF155 Read this manual carefully before operating this vehicle BNC F8199 EY English E ...

Page 2: ...EAU46094 Read this manual carefully before operating this vehicle This manual should stay with this vehicle if it is sold UBNCEYE0 book Page 1 Thursday September 16 2021 3 25 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 pr...

Page 4: ...ial 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 NOT...

Page 5: ...nesia Motor Manufacturing 1st edition January 2022 All rights reserved Any reprinting or unauthorized use without the written permission of PT Yamaha Indonesia Motor Manufac turing is expressly prohibited Printed in Indonesia UBNCEYE0 book Page 2 Thursday September 16 2021 3 25 PM ...

Page 6: ...ng 7 4 Periodic maintenance and adjustment 8 1 Tool kit 8 1 Periodic maintenance chart for the emission control system 8 2 General maintenance and lubrication chart 8 3 Removing and installing the cowling 8 7 Checking the spark plug 8 8 Engine oil and oil filter element 8 9 Why Yamalube 8 11 Coolant 8 12 Air filter element and check hose 8 13 Checking the engine idling speed 8 14 Adjusting the thr...

Page 7: ...ignal light bulb 8 30 Replacing a license plate light bulb 8 30 Supporting the motorcycle 8 31 Front wheel 8 31 Rear wheel 8 32 Troubleshooting 8 34 Troubleshooting chart 8 36 Motorcycle care and storage 9 1 Matte color caution 9 1 Care 9 1 Storage 9 3 Specifications 10 1 Consumer information 11 1 Identification numbers 11 1 Vehicle data recording 11 2 Index 12 1 UBNCEYE0 book Page 2 Thursday Sept...

Page 8: ...cle 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 1 2 3 UBNCEYE0 book Page 1 Thursday September 16 2021 3 25 PM ...

Page 9: ...Location of important labels 1 2 1 100kPa 1bar kPa psi kPa psi 225 33 250 36 225 33 250 36 BJ2 F1668 00 2 1 ู 2PL F1568 01 3 B98 F815P 00 ู UBNCEYE0 book Page 2 Thursday September 16 2021 3 25 PM ...

Page 10: ... 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 6 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 recognize...

Page 11: ...ain 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 su...

Page 12: ...e 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 mus...

Page 13: ...ange 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 Caref...

Page 14: ...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 torcyc...

Page 15: ...in the event of an accident The majority 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 helme...

Page 16: ...ir usage Half type use only for riding at low speeds 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 UBNCEYE0 book Page 7 Thursday September 16 2021 3 25 PM ...

Page 17: ...1 Headlight page 8 30 2 Auxiliary light page 8 30 3 Fuel tank cap page 5 14 4 Air filter page 8 13 5 Battery page 8 28 6 Fuse page 8 29 7 Tool kit page 8 1 8 Sidestand page 5 19 9 Shift pedal page 5 13 UBNCEYE0 book Page 1 Thursday September 16 2021 3 25 PM ...

Page 18: ...page 8 30 2 Tail brake light 3 Front brake fluid reservoir page 8 20 4 Front turn signal light page 8 30 5 Engine oil filter element page 8 9 6 Dipstick page 8 9 7 Brake pedal page 5 14 8 Rear brake fluid reservoir page 8 20 UBNCEYE0 book Page 2 Thursday September 16 2021 3 25 PM ...

Page 19: ...tch lever page 5 13 2 Left handlebar switches page 5 12 3 Multi function meter unit page 5 4 4 Main switch steering lock page 5 1 5 Right handlebar switches page 5 12 6 Throttle grip page 8 14 7 Brake lever page 5 14 UBNCEYE0 book Page 3 Thursday September 16 2021 3 25 PM ...

Page 20: ...he Yamaha Motorcycle Connect smartphone app With this connection notifications from SNS social network service apps in coming phone calls and missed calls are signaled to you and the battery level of your smartphone is displayed The Yamaha Motorcycle Connect app also provides other information such as your last parking location etc WARNING EWAN0070 Always stop the vehicle before operating your sma...

Page 21: ...smartphone battery level me ter will come on TIP Once paired the smartphone is registered in the CCU The next time the vehicle is turned on and the Yamaha Motorcycle Connect app is active the connection will be automatically established Only one smartphone can be con nected to the CCU at one time If more than one phone has been registered in the CCU then the first phone within reach will be connec...

Page 22: ...he key is turned to The fuel pump can be heard when the key is turned to EAU76120 off All electrical systems are off The key can be removed WARNING EWA15351 Never turn the key to or while the vehicle is moving Other wise the electrical systems will be switched off which may result in loss of control or an accident EAU76130 lock The steering is locked and all electrical systems are off The key can ...

Page 23: ...he keyhole shutter receptacle as shown and then turn the key to the right to open the keyhole shutter To close the keyhole shutter Insert the keyhole shutter key into the keyhole shutter receptacle as shown and then turn the key to the left to close the keyhole shutter 1 Keyhole shutter key 2 Main switch steering lock key 2 1 UBNCEYE0 book Page 2 Thursday September 16 2021 3 25 PM ...

Page 24: ...ystem If this occurs have a Yamaha dealer check the on board diagnostic system 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 EAU92970 Shift timing indicator light This indicator light can be set to come on and go off at select engine speeds See page 5 10 TIP ...

Page 25: ... This icon flashes for 10 seconds when the connected smartphone receives an SNS E mail or other notification After that the icon stays on until you turn the vehicle off TIP This function works only when the smartphone is connected to the vehicle Notifications must be setup for each application on the connect ed smartphone in advance 1 SELECT button 2 RESET button 3 Speedometer 4 Fuel meter 5 VVA v...

Page 26: ...ll to blank as the battery level decreases When approximately 10 or less of the battery remains the last segment starts flashing TIP Even if the smartphone is not connect ed when the vehicle is turned on this icon should come on for a few sec onds Otherwise have a Yamaha dealer check the CCU and the electrical cir cuit EAU86831 Speedometer The speedometer shows the vehicle s traveling speed EAU871...

Page 27: ...ndicator This model is equipped with variable valve actuation VVA for good fuel economy and acceleration in both the low speed and high speed ranges The VVA indicator comes on when the variable valve actuation system has switched to the high speed range EAU87391 Transmission gear display This display shows the selected gear The neutral position is indicated by and by the neutral indicator light 1 ...

Page 28: ...l CLOCK km L or L 100 km AVG_ _ _ km L or AVG_ _ _ L 100 km AVG_ _ _ km h ODO TIP Use the RESET button to cycle the display items in reverse order If the last segment of the fuel me ter starts flashing the display au tomatically changes to the fuel reserve tripmeter mode TRIP F and starts counting the distance traveled from that point The fuel reserve tripmeter will re set automatically and disapp...

Page 29: ...nd RESET buttons together 3 When the hour digits start flash ing use the RESET button to set the hours 4 Push the SELECT button to con firm and the minutes will start flashing 5 Use the RESET button to set the minutes 6 Push the SELECT button to con firm TIP When the CCU and a smartphone con nect with the vehicle power on the clock automatically syncs with the phone EAUN3631 Instantaneous fuel con...

Page 30: ...LECT button for one sec ond To reset the average fuel con sumption display hold the RESET button until the display resets AVG_ _ _ km L The average dis tance traveled on 1 0 L of fuel AVG_ _ _ L 100 km The average amount of fuel used to travel 100 km TIP After resetting the average fuel consumption _ _ _ will be shown until the vehicle has trav eled 1 km The average fuel consumption function is fo...

Page 31: ...he selected brightness level and change to the shift light on flash off setting function To set the shift light on flash off 1 Use the RESET button to select one of the following flashing pat tern settings On setting the shift light will come on when the set engine speed is reached This setting is selected when the shift light stays on Flash setting the shift light will flash when the set engine s...

Page 32: ...2 Push the SELECT button to con firm the selected brightness level and exit to the normal meter dis play EAU87990 Welcome screen The welcome screen greets the rider with the message Hi Buddy when they turn the vehicle on and says fare well to the rider with the message see you when they turn the vehicle off The user name Buddy is set as the factory default but it can be set to your name To set the...

Page 33: ...top to stop the engine in case of an emergency such as in the event of an overturn or if the throttle is stuck EAU12713 Start switch Push this switch to crank the engine with the starter See page 7 2 for start ing instructions prior to starting the en gine EAUU1021 Hazard lights switch The hazard lights simultaneous flash ing of all turn signal lights are used in case of an emergency such as to wa...

Page 34: ...cle To shift the transmission to a higher gear move the shift pedal up To shift the trans mission to a lower gear move the shift pedal down See page 7 3 EAUN3570 Quick shifter The quick shifter allows for full throttle clutch lever less electronically assist ed upshifts When the shift switch de tects motion in the shift pedal page 5 13 engine power and drive torque are momentarily adjusted to allo...

Page 35: ...EAUE1482 Fuel tank cap To remove the fuel tank cap 1 Open the fuel tank cap lock cover 2 Insert the key and turn it 1 4 turn clockwise The lock will be re leased and the fuel tank cap can be removed To install the fuel tank cap 1 Push the fuel tank cap into posi tion with the key inserted 2 Turn the key counterclockwise to the original position and then re move it 3 Close the lock cover 1 Brake le...

Page 36: ...arks 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 Stop filling when the fuel reaches the bottom of the filler tube Because fuel expands when it heats up heat from the engine or the sun can cause fuel to spill out of the fuel tank 3 Wipe up any spilled fuel immedi ately NOTICE Immediately wipe off spilled fuel ...

Page 37: ...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 EAU83851 Seats Passenger seat To remove the passenger s...

Page 38: ... 2 Remove the key Rider seat To remove the rider seat 1 Remove the passenger seat and then remove the hexagon wrench located on the bottom of the seat 2 Remove the bolts with the hexa gon wrench 3 Lift the seat rearward and up to re move it 1 Passenger seat 1 Projection 2 Seat holder 1 2 1 Rider seat cover 1 1 Hexagon wrench 1 Bolt 2 Quick fastener 1 ZAUE4542 1 2 UBNCEYE0 book Page 17 Thursday Sep...

Page 39: ...properly secured before riding EAU62930 Helmet holders The helmet holders are located on the bottom of the passenger seat To secure a helmet to a helmet hold er 1 Remove the passenger seat See page 5 16 2 Attach a helmet to a helmet hold er and then securely install the passenger seat WARNING Nev er ride with a helmet attached to the helmet holder since the hel met may hit objects causing loss of ...

Page 40: ...rear view mirrors back to their original position before riding EAU37491 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 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 th...

Page 41: ...nts in gear engine starts unless the clutch lever is pulled Periodically check the system via the following procedure TIP This check is most reliable if per formed with a warmed up engine See pages 5 1 and 5 12 for switch operation information UBNCEYE0 book Page 20 Thursday September 16 2021 3 25 PM ...

Page 42: ...n until checked by a Yamaha dealer 5 Stop the engine 6 Set engine stop switch to 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 vehicle ins...

Page 43: ... dealer Before using this vehicle check the following points ITEM CHECKS PAGE Fuel Check fuel level in fuel tank Refuel if necessary Check fuel line for leakage 5 15 Engine oil Check oil level in engine If necessary add recommended oil to specified level Check vehicle for oil leakage 8 9 Coolant Check coolant level in reservoir If necessary add recommended coolant to specified level Check cooling ...

Page 44: ...ree play and lubricate ca ble end and grip housing 8 14 8 24 Control cables Make sure that operation is smooth Lubricate cable ends if necessary 8 24 Drive chain Check chain slack Adjust if necessary Check chain condition Lubricate if necessary 8 22 8 23 Wheels and tires Check for damage Check tire condition and tread depth Check air pressure Correct if necessary 8 15 8 17 Brake and shift pedals M...

Page 45: ...sis 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 UBNCEYE0 book Page 3 Thursday September 16 2021 3 25 PM ...

Page 46: ...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 oil f...

Page 47: ...ng light remains on NOTICE ECA24110 If a warning or indicator light does not work as described above have a Yamaha dealer check the vehicle 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 E...

Page 48: ...w the motorcycle for long distances The transmission is properly lu bricated only when the engine is running Inadequate lubrication may damage the transmission Except when using the quick shifter always pull the clutch le ver when changing gears to avoid damaging the engine transmission and drivetrain EAU16811 Tips for reducing fuel con sumption Fuel consumption depends largely on your riding styl...

Page 49: ...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 otherwise the vehicle may overturn increasing the risk of a fuel leak and fire Do not park near grass or other flammable materials which might catch fire UBNCEYE0 book Page 4 Thursday September 16 2021 3 25 PM ...

Page 50: ...123 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 monox ide WARNING EWA...

Page 51: ...em 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 hoses 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 mi 4 Valves...

Page 52: ...r filter element Clean Replace Every 12000 km 7500 mi 3 Battery Check voltage Charge if necessary 4 Clutch Check operation Adjust 5 Front brake Check operation fluid level and vehicle for fluid leakage Replace brake pads Whenever worn to the limit 6 Rear brake Check operation fluid level and vehicle for fluid leakage Replace brake pads Whenever worn to the limit 7 Brake hose Check for cracks or da...

Page 53: ... km 600 mi and after washing the motorcycle riding in the rain or riding in wet areas 14 Steering bearings Check bearing play and steering for roughness Lubricate with lithium soap based grease Every 24000 km 14000 mi 15 Chassis fasteners Make sure that all nuts bolts and screws are properly tightened 16 Brake lever pivot shaft Lubricate with silicone grease 17 Brake pedal pivot shaft Lubricate wi...

Page 54: ...er for 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 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 CHECK 1000 km ...

Page 55: ...nd 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 6 ...

Page 56: ...en ers then take the cowling off TIP The quick fasteners are removed by pushing in the center pin and then pull ing the fastener out To install the cowling Place the cowling in the original posi tion then install the quick fasteners and screws TIP The quick fasteners are installed by pushing out the center pin inserting the fastener into the cowling and then pushing the center pin flush with the f...

Page 57: ...attempt to diagnose such problems yourself Instead have a Yamaha deal er check the vehicle If the spark plug shows signs of elec trode erosion and excessive carbon or other deposits it should be replaced Before installing a spark plug the spark plug gap should be measured with a wire thickness gauge and if necessary adjusted to specification Clean the surface of the spark plug gasket and its matin...

Page 58: ...l you know that the en gine oil level is sufficient ECA10012 TIP The engine oil should be between the minimum and maximum level marks 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 and tighten the oil filler cap To change the engine oil with or without oil filter element replace ment 1 Start the engine warm...

Page 59: ...ine oil strainer com pression spring O ring and the engine oil drain bolt and then tighten it to the specified torque NOTICE Before installing the engine oil drain bolt do not for get to install the O ring com pression spring and oil strainer in position ECA10422 1 Engine oil drain bolt 2 O ring 3 Compression spring 4 Strainer 5 Oil pan ZAUE4552 5 1 2 3 4 1 Bolt 2 Oil filter element cover 1 Oil fi...

Page 60: ...AU85450 Why Yamalube YAMALUBE oil is a Genuine YAMAHA Part born of the engineers passion and belief that engine oil is an impor tant liquid engine component We form teams of specialists in the fields of me chanical engineering chemistry elec tronics and track testing and have them develop the engine together with the oil it will use Yamalube oils take full advantage of the base oil s qualities and...

Page 61: ... TIP The coolant should be between the minimum and maximum level marks 5 If the coolant is at or below the minimum level mark remove the coolant reservoir cap 6 Add coolant to the maximum level mark and then install the coolant reservoir cap WARNING Re move only the coolant reservoir cap Never attempt to remove the radiator cap when the en gine is hot EWA15162 NOTICE If coolant is not available us...

Page 62: ...70 Air filter element and check hose The air filter element should be cleaned or replaced by a Yamaha dealer at the intervals specified in the periodic main tenance chart Have the air filter ele ment serviced more frequently if you often ride in wet or dusty areas In ad dition the air filter check hose should be regularly checked and cleaned if necessary To clean the air filter check hose 1 Check ...

Page 63: ...IP The engine idling speed must be cor rectly adjusted before checking and adjusting the throttle grip free play 1 Loosen the locknut 2 To increase the throttle grip free play turn the throttle grip free play adjusting nut in direction a To decrease the throttle grip free play turn the adjusting nut in di rection b 3 Tighten the locknut Engine idling speed 1300 1500 r min 1 Throttle grip free play...

Page 64: ...peci fied tires Tire air pressure The tire air pressure should be checked and if necessary adjusted before each ride WARNING EWA10504 Operation of this vehicle with im proper tire pressure may cause se vere injury or death from loss of control The tire air pressure must be checked and adjusted on cold tires i e when the temperature of the tires equals the ambient temperature The tire air pressure ...

Page 65: ... 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 sidewall rubber sometimes accompanied by carcass deformation is an evidence of ageing Old and aged tires shall be checked by tire specialists to ascertain their suitability for further use WARNING E...

Page 66: ...ee play Measure the clutch lever free play as shown Periodically check the clutch lever free play and if necessary adjust it as fol lows 1 Slide the rubber cover back at the clutch lever 2 Loosen the locknut 3 To increase the clutch lever free play turn the clutch lever free play adjusting bolt in direction a To decrease the clutch lever free play turn the adjusting bolt in di rection b TIP If the...

Page 67: ...cking 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 hydraulic system have a Yamaha dealer bleed the system be fore operating the vehicle Air in the hydraulic s...

Page 68: ...in direction b TIP The front brake light switch should be serviced by a Yamaha dealer EAU22393 Checking the front and rear brake pads The front and rear brake pads must be checked for wear at the intervals spec ified in the periodic maintenance and lubrication chart EAU22434 Front brake pads Each front brake pad is provided with wear indicator grooves which allow you to check the brake pad wear wi...

Page 69: ...EAUV0530 Checking the brake fluid level Before riding check that the brake fluid is above the minimum level mark Check the brake fluid level with the top of the reservoir level Replenish the brake fluid if necessary Front brake Rear brake WARNING EWA15981 Improper maintenance can result in loss of braking ability Observe these precautions Insufficient brake fluid may al low air to enter the brake ...

Page 70: ...parts Always clean up spilled fluid immediately As the brake pads wear it is normal for the brake fluid level to gradually go down A low brake fluid level may indi cate worn brake pads and or brake system leakage therefore be sure to check the brake pads for wear and the brake system for leakage If the brake fluid level goes down suddenly have a Yamaha dealer check the cause before further riding ...

Page 71: ...ain slip page or breakage To prevent this from occurring keep the drive chain slack within the specified limits ECA10572 EAU3431B To adjust the drive chain slack Consult a Yamaha dealer before ad justing the drive chain slack 1 Loosen the axle nut and the lock nut on each side of the swingarm 2 To tighten the drive chain turn the drive chain slack adjusting bolt on each side of the swingarm in di ...

Page 72: ...OTICE ECA10584 The drive chain must be lubricated after washing the motorcycle riding in the rain or riding in wet areas 1 Clean the drive chain with soap water to remove the accumulated dust mud and then dry off 2 Apply the cleaning spray on all the links and plates of chain then wipe the chain NOTICE To pre vent damaging the O rings do not clean the drive chain with steam cleaners high pressure ...

Page 73: ...ked before each ride In addition the cable end should be lubri cated by a Yamaha dealer at the inter vals specified in the periodic maintenance chart The throttle cable is equipped with a rubber cover Make sure that the cover is securely installed Even though the cover is installed correctly it does not completely protect the cable from wa ter entry Therefore use care not to pour water directly on...

Page 74: ...ke and clutch levers should be checked before each ride and the lever pivots should be lu bricated if necessary Brake lever Clutch lever Recommended lubricant Lithium soap based grease Recommended lubricants Brake lever Silicone grease Clutch lever Lithium soap based grease UBNCEYE0 book Page 25 Thursday September 16 2021 3 25 PM ...

Page 75: ...aintenance and lubrication chart EAU23273 Checking the front fork 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 Check 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 pos...

Page 76: ...ge 8 31 WARNING To avoid injury se curely support the vehicle so there is no danger of it falling over EWA10752 2 Hold the lower ends of the front fork legs and try to move them for ward and backward If any free play can be felt have a Yamaha dealer check or repair the steer ing EAU23292 Checking the wheel bearings The front and rear wheel bearings must be checked at the intervals specified in the...

Page 77: ...en charging it in an enclosed space KEEP THIS AND ALL BATTER IES OUT OF THE REACH OF CHILDREN NOTICE ECA10621 Never attempt to remove the battery cell seals as this would permanently damage the battery To charge the battery Have your Yamaha dealer charge the battery if it seems to have discharged Keep in mind that the battery tends to discharge more quickly if the vehicle is equipped with optional...

Page 78: ... See page 5 16 If a fuse is blown replace it as follows 1 Turn the main switch off and turn off the electrical circuit in ques tion 2 Remove the blown fuse and then install a new fuse of the specified amperage WARNING Do not use a fuse of a higher amperage rating than recommended to avoid causing extensive dam age to the electrical system and possibly a fire EWA15132 3 Turn the main switch on and ...

Page 79: ...screw 2 Remove the burnt out bulb by pushing it in and turning it coun terclockwise 3 Insert a new bulb into the socket push it in and then turn it clock wise until it stops 4 Install the lens by installing the screw NOTICE Do not over tighten the screw otherwise the lens may break ECA11192 EAUE3370 Replacing a license plate light bulb 1 Remove the screw 2 Remove the license plate light bulb socke...

Page 80: ...orming other maintenance that requires the motorcycle to stand up right Check that the motorcycle is in a stable and level position before starting any maintenance EAU24361 Front wheel EAUN0582 To remove the front wheel WARNING EWA10822 To avoid injury securely support the vehicle so there is no danger of it falling over 1 Loosen the front wheel axle nut and the brake caliper bolts 2 Lift the fron...

Page 81: ...the brake pads before install ing the brake caliper onto the brake disc 5 Install the brake hose holder by in stalling the bolt 6 Tighten the wheel axle and brake caliper bolts to the specified torques 7 Push down hard on the handlebar several times to check for proper fork operation EAU25081 Rear wheel EAU80711 To remove the rear wheel WARNING EWA10822 To avoid injury securely support the vehicle...

Page 82: ...move remove the wheel axle first and then lift the wheel upward enough to remove the drive chain from the rear sprocket The drive chain does not need to be disassembled in order to re move and install the wheel 9 While supporting the brake caliper bracket pull the wheel axle out along with the washer and chain puller and then remove the wheel NOTICE Do not apply the brake after the wheel and brake...

Page 83: ...olts 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 should you...

Page 84: ...dic maintenance and adjustment 8 35 8 heaters or furnaces Gasoline or gasoline vapors can ignite or ex plode causing severe injury or prop erty damage UBNCEYE0 book Page 35 Thursday September 16 2021 3 25 PM ...

Page 85: ...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 starti...

Page 86: ...pped 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 for ...

Page 87: ...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 Av...

Page 88: ...ld 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 with ...

Page 89: ...es 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 exhaust...

Page 90: ...s 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 contr...

Page 91: ...MA 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 15 L 0 16 US qt 0 13 Imp qt Radiator including all routes 0 49 L 0 52 US qt 0 43 Imp qt Fuel Recommended fuel Unleaded gasoline E10 to E20 only Octane number RON 90 Fuel tank capacity 11 L 2 9 US gal 2 4 Imp gal Fuel...

Page 92: ... Type Telescopic fork Rear suspension Type Swingarm link suspension Electrical system System voltage 12 V Battery Model YTZ4V Voltage capacity 12 V 3 0 Ah 10 HR Model GTZ4V Voltage capacity 12 V 3 0 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 UBNCEYE0 book Page 2 Thursday Septemb...

Page 93: ...401 Vehicle identification number The vehicle identification number is stamped into the steering head pipe Record this number in the space pro vided TIP The vehicle identification number is used to identify your motorcycle and may be used to register your motorcy cle with the licensing authority in your area EAU26442 Engine serial number The engine serial number is stamped into the crankcase 1 Veh...

Page 94: ...ched 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 handle the vehicle data we prov...

Page 95: ...ing 8 19 Front fork checking 8 26 Fuel 5 15 Fuel consumption tips for reducing 7 3 Fuel meter 5 6 Fuel tank cap 5 14 Fuses replacing 8 29 H Handlebar switches 5 12 Hazard lights switch 5 12 Helmet holders 5 18 Helmets 2 6 High beam indicator light 5 3 Horn switch 5 12 I Identification numbers 11 1 Incoming call icon 5 4 Incoming notification icon 5 4 Indicator lights and warning lights 5 3 K Keyho...

Page 96: ...n gear display 5 6 Troubleshooting 8 34 Troubleshooting chart 8 36 Turn signal indicator lights 5 3 Turn signal light bulb replacing 8 30 Turn signal switch 5 12 V Valve clearance 8 15 Vehicle identification number 11 1 Vehicle lights 8 30 VVA indicator 5 6 W Welcome screen 5 11 Wheel bearings checking 8 27 Wheel front 8 31 Wheel rear 8 32 Wheels 8 17 Y Yamaha Motorcycle Connect icon 5 5 Yamalube ...

Page 97: ...UBNCEYE0 book Page 3 Thursday September 16 2021 3 25 PM ...

Page 98: ...DIC183 PRINTED IN INDONESIA 2022 01 Yamaha Motorcycle Connect ...

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Yamaha YZF155, Owner'S Manual

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