Yamaha YS125-5C 2016 Owner'S Manual Download

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Specifications

8-1

Dimensions:

Overall length:

2005 mm (78.9 in)

Overall width:

735 mm (28.9 in)

Overall height:

1050 mm (41.3 in)

Seat height:

795 mm (31.3 in)

Wheelbase:

1320 mm (52.0 in)

Ground clearance:

150 mm (5.91 in)

Minimum turning radius:

2.2 m (7.22 ft)

Wei

ht:

Curb weight:

129 kg (284 lb)

ine:

Combustion cycle:

4-stroke

Cooling system:

Air cooled

Valve train:

SOHC

Number of cylinders:

Single cylinder

Displacement:

125 cm³

Bore

stroke:

52.4

57.9 mm (2.06

2.28 in)

Compression ratio:

10.0 : 1

Starting system:

Electric starter

Lubrication system:

Wet sump

ine oil:

Recommended brand:

YAMALUBE

SAE viscosity grades:

10W-40, 20W-40

Recommended engine oil grade:

API service SG type or higher, JASO
standard MA

Engine oil quantity:

Oil change:

1.00 L (1.06 US qt, 0.88 Imp.qt)

With oil filter removal:

1.10 L (1.16 US qt, 0.97 Imp.qt)

Air filter:

Air filter element:

Dry element

Fuel:

Recommended fuel:

Regular unleaded gasoline (Gasohol [E10]
acceptable)

Fuel tank capacity:

14 L (3.7 US gal, 3.1 Imp.gal)

Fuel reserve amount:

2.2 L (0.58 US gal, 0.48 Imp.gal)

Fuel injection:

Throttle body:

ID mark:

BT41 00

Spark plu

(s):

Manufacturer/model:

NGK/CPR8EA-9

Spark plug gap:

0.8–0.9 mm (0.031–0.035 in)

Clutch:

Clutch type:

Wet, multiple-disc

Drivetrain:

Primary reduction ratio:

3.409 (75/22)

Final drive:

Chain

Secondary reduction ratio:

3.071 (43/14)

Transmission type:

Constant mesh 5-speed

Gear ratio:

1st:

2.714 (38/14)

2nd:

1.789 (34/19)

110 130 ˚F

-20 -10

50 ˚C

SAE 10W-40

SAE 20W-40

UBT4E0E0.book Page 1 Thursday, November 17, 2016 10:55 AM

Summary of Contents for YS125-5C 2016

Page 1: ...DIC183 YS125 5C OWNER S MANUAL Read this manual carefully before operating this vehicle BT4 F8199 E0 English E ...

Page 2: ...EAU46094 Read this manual carefully before operating this vehicle This manual should stay with this vehicle if it is sold UBT4E0E0 book Page 1 Thursday November 17 2016 10 55 AM ...

Page 3: ...n 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 p...

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: ...L 2016 by Yamaha Motor Co Ltd 1st edition November 2016 All rights reserved Any reprinting or unauthorized use without the written permission of Yamaha Motor Co Ltd is expressly prohibited Printed in China UBT4E0E0 book Page 2 Thursday November 17 2016 10 55 AM ...

Page 6: ...wling and panels 6 8 Checking the spark plug 6 10 Engine oil and oil filter element 6 11 Cleaning the air filter element and cleaning the check hose 6 14 Adjusting the engine idling speed 6 16 Checking the throttle grip free play 6 16 Valve clearance 6 17 Tires 6 17 Cast wheels 6 19 Adjusting the clutch lever free play 6 19 Checking the brake lever free play 6 20 Adjusting the brake pedal free pla...

Page 7: ... 35 Replacing the license plate light bulb 6 36 Front wheel 6 36 Rear wheel 6 37 Troubleshooting 6 39 Troubleshooting chart 6 41 Motorcycle care and storage 7 1 Matte color caution 7 1 Care 7 1 Storage 7 3 Specifications 8 1 Consumer information 9 1 Identification numbers 9 1 Diagnostic connector 9 2 Vehicle data recording 9 2 Index 10 1 UBT4E0E0 book Page 2 Thursday November 17 2016 10 55 AM ...

Page 8: ... 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 4 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 9: ...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 10: ...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 11: ...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 12: ...truc tions before transporting the motorcy cle in another vehicle Remove all loose items from the motorcycle Check that the fuel cock if equipped is in the OFF position and that there are no fuel leaks Point the front wheel straight ahead on the trailer or in the truck bed and choke it in a rail to pre vent movement Shift the transmission in gear for models with a manual transmis sion Secure the m...

Page 13: ... Fuel tank cap page 3 8 4 Idle adjusting screw page 6 16 5 Air filter element page 6 14 6 Seat page 3 11 7 Shock absorber assembly spring preload adjusting ring page 3 11 8 Brake tail light page 6 35 9 License plate light page 6 36 10 Shift pedal page 3 6 UBT4E0E0 book Page 1 Thursday November 17 2016 10 55 AM ...

Page 14: ...ing ring page 3 11 2 Owner s tool kit page 6 2 3 Battery page 6 30 4 Fuses page 6 31 5 Engine oil filter element page 6 11 6 Engine oil drain bolt page 6 11 7 Engine oil filler cap page 6 11 8 Brake pedal page 3 7 9 Rear brake light switch page 6 21 UBT4E0E0 book Page 2 Thursday November 17 2016 10 55 AM ...

Page 15: ... 6 2 Left handlebar switches page 3 5 3 Main switch steering lock page 3 1 4 Multi function meter unit page 3 3 5 Front brake fluid reservoir page 6 22 6 Right handlebar switch page 3 5 7 Throttle grip page 6 16 8 Brake lever page 3 7 UBT4E0E0 book Page 3 Thursday November 17 2016 10 55 AM ...

Page 16: ... run ning EAU54301 off All electrical systems are off The key can be removed WARNING EWA16371 Never turn the key to or LOCK while the vehicle is moving Other wise the electrical systems will be switched off which may result in loss of control or an accident EAU73820 LOCK The steering is locked and all electrical systems are off The key can be re moved To lock the steering 1 Turn the handlebars all...

Page 17: ...system If this occurs have a Yamaha dealer check the on board diagnostic system The electrical circuit of the warning light can be checked by turning the key to The warning light should come on for a few seconds and then go off If the warning light does not come on initially when the key is turned to or if the warning light remains on have a Yamaha dealer check the vehicle EAUE2572 Eco indicator l...

Page 18: ...ent The multi function meter unit is equipped with the following speedometer odometer tripmeter tachometer fuel meter transmission gear display TIP Be sure to turn the key to be fore using the RESET SELECT button For the UK To switch the speed ometer and odometer tripmeter displays between kilometers and miles push the RESET SELECT button for two seconds However the display units can be switched o...

Page 19: ...t within the ideal power range NOTICE ECA10032 Do not operate the engine in the ta chometer red zone Red zone 9000 r min and above 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 the last seg ment of the fuel meter and the fuel level warning indicator start flashin...

Page 20: ...er switch Set this switch to for the high beam and to for the low beam EAU12461 Turn signal switch To signal a right hand 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...

Page 21: ...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 which is part of the igni tion circuit cut off system See page 3 13 EAU12872 Shift pedal The shift pedal is located on the left side of the motorcycle and is used in combination with the clutch lever when shifting the gears of the 5 speed...

Page 22: ...ke system is mechanical additional free play can be felt in the brake pedal when the brake lever is being pulled but this does not indicate a malfunction The unified brake system does not operate when the brake pedal is pressed down directly EAU78910 Brake pedal The brake pedal is located on the right side of the motorcycle To apply the rear brake press down on the brake pedal TIP Because the unif...

Page 23: ...lled before riding Leaking fuel is a fire hazard EAU13213 Fuel Make sure there is sufficient gasoline in the tank WARNING EWA10882 Gasoline and gasoline vapors are extremely flammable To avoid fires and explosions and to reduce the risk of injury when refueling follow these instructions 1 Before refueling turn off the en gine and be sure that no one is sit ting on the vehicle Never refuel while sm...

Page 24: ...soline The use of leaded gasoline will cause severe damage to internal engine parts such as the valves and piston rings as well as to the exhaust system TIP This mark identifies the recom mended fuel for this vehicle as specified by European regulation EN228 Check that gasoline nozzle has the same identifier when fueling Your Yamaha engine has been de signed to use regular unleaded gaso line with ...

Page 25: ...ARNING EWA10863 The exhaust system is hot after op eration To prevent a fire hazard or burns Do not park 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...

Page 26: ...ust both shock absorber assemblies equally otherwise poor handling and loss of stability may re sult Each shock absorber assembly is equipped with a spring preload adjust ing ring NOTICE ECA10102 To avoid damaging the mechanism do not attempt to turn beyond the maximum or minimum settings Adjust the spring preload as follows To increase the spring preload and thereby harden the suspension turn the...

Page 27: ... ignition circuit cut off system WARNING EWA10242 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 Yamaha s ignition circuit cut off system has been designed to assist the operator in fulfilling the respon sibi...

Page 28: ...ion is in gear and the sidestand is up but the clutch le ver is not pulled It prevents starting when the transmission is in gear and the clutch lever is pulled but the side stand is still down It cuts the running engine when the transmission is in gear and the sidestand is moved down Periodically check the operation of the ignition circuit cut off system accord ing to the following procedure UBT4E...

Page 29: ...the start switch Does the engine start The system is OK The motorcycle can be ridden The sidestand switch may not be working correctly The motorcycle should not be ridden until checked by a Yamaha dealer The clutch switch may not be working correctly The motorcycle should not be ridden until checked by a Yamaha dealer YES NO YES NO YES NO The neutral switch may not be working correctly The motorcy...

Page 30: ...his vehicle check the following points ITEM CHECKS PAGE Fuel Check fuel level in fuel tank Refuel if necessary Check fuel line for leakage 3 8 Engine oil Check oil level in engine If necessary add recommended oil to specified level Check vehicle for oil leakage 6 11 Front brake Check operation If soft or spongy have Yamaha dealer bleed hydraulic system Check brake pads for wear Replace if necessar...

Page 31: ...cessary 6 17 6 19 Brake and shift pedals Make sure that operation is smooth Lubricate pedal pivoting points if necessary 6 26 Brake and clutch levers Make sure that operation is smooth Lubricate lever pivoting points if necessary 6 27 Centerstand sidestand Make sure that operation is smooth Lubricate pivots if necessary 6 28 Chassis fasteners Make sure that all nuts bolts and screws are properly t...

Page 32: ...nk when pushing the start switch EAU78350 Starting the engine In order for the ignition circuit cut off system to enable starting one of the following conditions must be met The transmission is in the neutral position The transmission is in gear with the clutch lever pulled and the sidestand up See page 3 13 for more informa tion 1 Turn the key to The engine trouble warning light should come on fo...

Page 33: ... positions are shown in the il lustration TIP To shift the transmission into the neu tral position press the shift pedal 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 pr...

Page 34: ... clearances During this period prolonged full throt tle operation or any condition that might result in engine overheating must be avoided EAU16883 0 150 km 0 90 mi Avoid prolonged operation above 4500 r min After every hour of operation stop the engine and then let it cool for five to ten minutes Vary the engine speed from time to time Do not operate the engine at one set throttle position 150 50...

Page 35: ...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 UBT4E0E0 book Page 4 Thursday November 17 2016 10 55 AM ...

Page 36: ...rforming 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 1 3 for more in formation about carbon monox ide WARNING EWA15461 Brake discs calipers drum...

Page 37: ...er s tool kit are intended to assist you in the performance of preventive maintenance and minor repairs How ever additional tools such as a torque wrench may be necessary to perform certain maintenance work correctly TIP If you do not have the tools or experi ence required for a particular job have a Yamaha dealer perform it for you 1 Owner s tool kit 1 UBT4E0E0 book Page 2 Thursday November 17 20...

Page 38: ...a and tech nical skills EAU71040 Periodic maintenance chart for the emission control system NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING ANNUAL CHECK 1000 km 600 mi 6000 km 3500 mi 12000 km 7000 mi 18000 km 10500 mi 24000 km 14000 mi 1 Fuel line Check fuel hoses for cracks or damage Replace if necessary 2 Spark plug Check condition Adjust gap and clean Replace 3 Valve clearance Check and adju...

Page 39: ... Check the error codes 2 Air filter element Clean Replace 3 Air filter case check hose Clean 4 Clutch Check operation Adjust 5 Front brake Check operation fluid level and for fluid leakage Replace brake pads if necessary 6 Rear brake Check operation Adjust brake pedal free play Replace brake shoes if neces sary 7 Brake hose Check for cracks or damage Replace Every 4 years 8 Brake fluid Change Ever...

Page 40: ... after washing the motorcycle riding in the rain or riding in wet areas 14 Steering bearings Check bearing assemblies for looseness Moderately repack with lithium soap based grease 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 with lithium soap based grease 18 Clutc...

Page 41: ...essary 23 Front fork Check operation and for oil leak age Replace if necessary 24 Shock absorber as semblies Check operation and for oil leak age Replace if necessary 25 Engine oil Change warm engine before draining Check oil level and vehicle for oil leakage 26 Engine oil filter ele ment Replace 27 Front and rear brake switches Check operation 28 Moving parts and cables Lubricate NO ITEM CHECK OR...

Page 42: ...and change the brake fluid Replace the brake hoses every four years and if cracked or damaged 29 Throttle grip hous ing and cable Check operation and free play Adjust the throttle cable free play if necessary Lubricate the throttle grip housing and cable 30 Lights signals and switches Check operation Adjust headlight beam NO ITEM CHECK OR MAINTENANCE JOB ODOMETER READING ANNUAL CHECK 1000 km 600 m...

Page 43: ...section each time the cowling or a panel needs to be re moved and installed EAU78741 Cowling A To remove the cowling Remove the bolt and then take the cowling off To install the cowling Place the cowling in the original posi tion and then install the bolt EAU56050 Panel A To remove the panel 1 Remove the screw 1 Panel A 1 1 Panel B 2 Cowling A 1 Cowling A 2 Bolt 1 2 1 2 UBT4E0E0 book Page 8 Thursd...

Page 44: ...ck and then turn it 1 4 turn clockwise 2 Pull the front of the panel out with the key inserted in the lock and then slide the panel forward to re lease it in the rear To install the panel 1 Secure the rear of the panel and then push the front of the panel in with the key inserted in the lock 2 While pushing the panel inward turn the key counterclockwise to the original position remove it and then ...

Page 45: ...h includ ed in the owner s tool kit To 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...

Page 46: ...d before each 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 oi...

Page 47: ... filler cap To change the engine oil with or without oil filter element replace ment 1 Start the engine warm it up for several minutes and then turn it off 2 Place an oil pan under the engine to collect the used oil 3 Remove the engine oil filler cap the engine oil drain bolt and its gasket to drain the oil from the crankcase TIP Skip steps 4 6 if the oil filter element is not being replaced 4 Rem...

Page 48: ...ition do not use oils labeled ENERGY CONSERVING II or higher Make sure that no foreign mate rial enters the crankcase 9 Check the O ring for damage and replace it if necessary 10 Install and tighten the engine oil filler cap NOTICE ECA10441 After changing the engine oil be sure to check the oil pressure as de scribed below To check the oil pressure 1 Remove cowling A See page 6 8 2 Remove the Y R ...

Page 49: ... 8 Turn the engine off check the oil level and correct it if necessary EAUW3321 Cleaning the air filter element and cleaning the check hose The air filter element should be cleaned at the intervals specified in the periodic maintenance and lubrication chart Clean the air filter element more fre quently if you are riding in unusually wet or dusty areas In addition the air filter check hose must be ...

Page 50: ...gine should never be operated without the air filter element installed otherwise the piston s and or cylinder s may become excessively worn ECA10482 5 Install the air filter case cover by installing the screws 6 Install the panel To clean the air filter check hose 1 Remove panel A See page 6 8 2 Check the hose shown for accu mulated dirt water or oil 3 If dirt water or oil is visible re move the h...

Page 51: ...e the engine idling speed turn 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 EAU21386 Checking the throttle grip free play Measure the throttle grip free play as shown Periodically check the throttle grip free play and if necessary have a Yam...

Page 52: ...ARNING 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 must be adjusted in accordance with the riding speed and with the total weight of rider passenger car go and accessori...

Page 53: ...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 rubber 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...

Page 54: ...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 back the rubber cover 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 55: ...rake 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 system will ...

Page 56: ...After adjusting the brake pedal free play check the operation of the brake light EAU22274 Brake light switches The brake light which is activated by the brake pedal and brake lever should come on just before braking takes effect If necessary adjust the rear brake light switch as follows but the front brake light switch should be adjusted by a Yamaha dealer Turn the rear brake light switch adjust i...

Page 57: ...ovided with a wear indicator which allows you to check the brake shoe wear without having to disassemble the brake To check the brake shoe wear check the position of the wear indicator while applying the brake If a brake shoe has worn to the point that the wear indicator reaches the wear limit mark have a Yamaha dealer replace the brake shoes as a set EAU32346 Checking the brake fluid level Before...

Page 58: ...or plastic 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 furt...

Page 59: ... breakage To prevent this from occurring keep the drive chain slack within the specified limits ECA10572 EAU78831 To adjust the drive chain slack Consult a Yamaha dealer before ad justing the drive chain slack 1 Take the motorcycle off the cen terstand and then put the side stand down 2 Loosen the brake pedal free play adjusting nut brake torque rod nut and axle nut 3 Loosen the drive chain puller...

Page 60: ... are in the same position the drive chain slack is correct and the drive chain moves smoothly EAU23018 Cleaning and lubricating the drive chain The drive chain must be cleaned and lubricated at the intervals specified in the periodic maintenance and lubrica tion chart otherwise it will quickly wear out especially when riding in dusty or wet areas Service the drive chain as follows NOTICE ECA10584 ...

Page 61: ...aged cables as soon as possible to prevent unsafe condi tions EWA10712 EAU49921 Checking and lubricating the throttle grip and cable The operation of the throttle grip should be checked before each ride In addition the cable should be lubricat ed by a Yamaha dealer at the intervals specified in the periodic maintenance chart EAU44276 Checking and lubricating the brake and shift pedals The operatio...

Page 62: ...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 UBT4E0E0 book Page 27 Thursday November 17 2016 10 55 AM ...

Page 63: ...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 EAUM1653 Lubricating the swingarm piv ots The swingarm pivots must be lubricat ed by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart Recommended lubricant...

Page 64: ...veral times to check if the front fork compresses and re bounds smoothly NOTICE ECA10591 If any damage is found or the front fork does not operate smoothly have a Yamaha dealer check or re pair it EAU45512 Checking the steering Worn or loose steering bearings may cause danger Therefore the operation of the steering must be checked as fol lows at the intervals specified in the periodic maintenance ...

Page 65: ... EWA10761 Electrolyte is poisonous and dangerous since it contains sul furic acid which causes severe burns Avoid any contact with skin eyes or clothing and al ways shield your eyes when working near batteries In case of contact administer the fol lowing FIRST AID EXTERNAL Flush with plenty of water INTERNAL Drink large quan tities of water or milk and im mediately call a physician EYES Flush with...

Page 66: ...oving the battery be sure to turn the main switch off then disconnect the negative lead before discon necting the positive lead ECA16304 2 If the battery will be stored for more than two months check it at least once a month and fully char ge it if necessary 3 Fully charge the battery before installation NOTICE When in stalling the battery be sure to turn the main switch off then connect the posit...

Page 67: ...e 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 key to and turn on the electrical circuits to check if the devices operate 4 If the fuse immediately blows again have a Yamaha dealer check the electrical system 1 Fuse 2 St...

Page 68: ...hly clean off any dirt and fin gerprints on the headlight bulb using a cloth moistened with al cohol or thinner Headlight lens Do not affix any type of tinted film or stickers to the headlight lens Do not use a headlight bulb of a wattage higher than specified 1 Remove the headlight unit side covers by removing the screw on each side 2 Remove the bolt on each side 3 Loosen the headlight unit stay ...

Page 69: ...tall the screw on each side 11 Have a Yamaha dealer adjust the headlight beam if necessary EAU45226 Replacing the auxiliary light bulb If the auxiliary light bulb burns out re place it as follows 1 Remove the headlight unit See page 6 33 2 Remove the auxiliary light bulb socket together with the bulb by pulling it out 3 Remove the burnt out bulb by pulling it out 4 Insert a new bulb into the socke...

Page 70: ...t a new bulb into the socket push it in and then turn it clock wise until it stops 5 Install the socket together with the bulb by turning it clockwise 6 Install the seat EAU24205 Replacing a turn signal light bulb 1 Remove the turn signal light lens by removing the screw 2 Remove the burnt out bulb by pushing it in and turning it coun terclockwise 1 Brake tail light bulb socket 1 1 Brake tail ligh...

Page 71: ...lling it out 4 Insert a new bulb into the socket 5 Install the socket together with the bulb by pushing it in 6 Install the license plate light unit by installing the nuts EAU24361 Front wheel EAUW3361 To remove the front wheel WARNING EWA10822 To avoid injury securely support the vehicle so there is no danger of it falling over 1 Take the vehicle off the center stand so that the front wheel is on...

Page 72: ... vehicle off the center stand so that the front wheel is on the ground and then put the side stand down 4 Tighten the axle nut to the speci fied torque 5 Push down hard on the handlebar several times to check for proper fork operation EAU25081 Rear wheel EAU78751 To remove the rear wheel WARNING EWA10822 To avoid injury securely support the vehicle so there is no danger of it falling over 1 Take t...

Page 73: ...xle together with the washer out from the right side and then remove the collars TIP A rubber mallet may be useful to tap the wheel axle out 8 Push the wheel forward and then remove the drive chain from the rear sprocket 1 Axle nut 1 1 Brake pedal free play adjusting nut 2 Brake camshaft lever 3 Drive chain puller locknut 4 Drive chain slack adjusting nut 5 Brake shoe plate 6 Brake rod 7 Brake tor...

Page 74: ... After adjusting the brake pedal free play check the operation of the brake light EAU25853 Troubleshooting Although Yamaha motorcycles receive a thorough inspection before shipment from the factory trouble may occur during operation Any problem in the fuel compression or ignition systems for example can cause poor starting and loss of power The following troubleshooting chart represents a quick an...

Page 75: ...dic maintenance and adjustment 6 40 6 heaters or furnaces Gasoline or gasoline vapors can ignite or ex plode causing severe injury or prop erty damage UBT4E0E0 book Page 40 Thursday November 17 2016 10 55 AM ...

Page 76: ...ealer 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 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 Operate the electric s...

Page 77: ...let with a plastic bag after the engine has cooled down 2 Make sure that all caps and cov ers as well as all electrical cou plers and connectors including the spark plug cap are tightly in stalled 3 Remove extremely stubborn dirt like oil burnt onto the crankcase with a degreasing agent and a brush but never apply such prod ucts onto seals gaskets sprock ets the drive chain and wheel axles Always ...

Page 78: ... detergent and a soft clean sponge and then rinse thoroughly with clean water Use a toothbrush or bottlebrush for hard to reach areas Stubborn dirt and insects will come off more easily if the area is covered with a wet cloth for a few minutes before cleaning After riding in the rain near the sea or on salt sprayed roads Since sea salt or salt sprayed on roads during winter are extremely corrosive...

Page 79: ...o any rubber and plastic parts but treat them with a suitable care product Avoid using abrasive polishing compounds as they will wear away the paint TIP Consult a Yamaha dealer for ad vice on what products to use Washing rainy weather or humid climates can cause the headlight lens to fog Turning the headlight on for a short period of time will help remove the moisture from the lens EAU43204 Storag...

Page 80: ...ngine over EWA10952 e Remove the spark plug cap from the spark plug and then install the spark plug and the spark plug cap 4 Lubricate all control cables and the pivoting points of all levers and pedals as well as of the side stand centerstand 5 Check and if necessary correct the tire air pressure and then lift the motorcycle so that both of its wheels are off the ground Alterna tively turn the wh...

Page 81: ...ce SG type or higher JASO standard MA Engine oil quantity Oil change 1 00 L 1 06 US qt 0 88 Imp qt With oil filter removal 1 10 L 1 16 US qt 0 97 Imp qt Air filter Air filter element Dry element Fuel Recommended fuel Regular unleaded gasoline Gasohol E10 acceptable Fuel tank capacity 14 L 3 7 US gal 3 1 Imp gal Fuel reserve amount 2 2 L 0 58 US gal 0 48 Imp gal Fuel injection Throttle body ID mark...

Page 82: ...i Maximum load Front 175 kPa 1 75 kgf cm 25 psi Rear 250 kPa 2 50 kgf cm 36 psi Front wheel Wheel type Cast wheel Rim size 18M C x MT1 85 Rear wheel Wheel type Cast wheel Rim size 18M C x MT2 15 Unified brake system Operation Activated by front brake Front brake Type Hydraulic single disc brake Specified brake fluid DOT 3 or 4 Rear brake Type Mechanical leading trailing drum brake Front suspension...

Page 83: ... Front turn signal light 10 0 W Rear turn signal light 10 0 W Auxiliary light 3 0 W Meter lighting LED Neutral indicator light LED High beam indicator light LED Turn signal indicator light LED Engine trouble warning light LED ECO indicator light LED Fuse s Main fuse 15 0 A UBT4E0E0 book Page 3 Wednesday December 21 2016 11 07 AM ...

Page 84: ...NUMBER MODEL LABEL INFORMATION EAU26401 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...

Page 85: ...is data will be uploaded only when a special Yamaha diagnostic tool is attached to the vehi cle such as when maintenance checks or service procedures are performed Although the sensors and recorded data will vary by model the main data points are Vehicle status and engine perfor mance data Fuel injection and emission relat ed data Yamaha will not disclose this data to a third party except With the...

Page 86: ...t fork checking 6 29 Fuel 3 8 Fuel consumption tips for reducing 5 3 Fuel tank cap 3 8 Fuse replacing 6 31 H Handlebar switches 3 5 Headlight bulb replacing 6 33 High beam indicator light 3 2 Horn switch 3 5 I Identification numbers 9 1 Ignition circuit cut off system 3 13 Indicator lights and warning light 3 2 L License plate light bulb replacing 6 36 M Main switch steering lock 3 1 Maintenance a...

Page 87: ...Index 10 2 10 Vehicle identification number 9 1 W Wheel bearings checking 6 30 Wheel front 6 36 Wheel rear 6 37 Wheels 6 19 UBT4E0E0 book Page 2 Thursday November 17 2016 10 55 AM ...

Page 88: ...A5 yoko_Blank fm Page 1 Thursday December 8 2011 2 18 PM ...

Page 89: ...A5 yoko_Blank fm Page 1 Thursday December 8 2011 2 18 PM ...

Page 90: ...DIC183 Original instructions PRINTED IN CHINA 2016 11 ...

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Yamaha YS125-5C 2016, Owner'S Manual

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Summary of Contents for YS125-5C 2016

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