Honda CRF125F 2020 Owner'S Manual Download

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Before Riding

Is Your Motorcycle Ready to Ride?

Leaks

Look under the motorcycle for
signs of leaking fluids (fuel,
engine oil, brake fluid).

Engine Oil

Check the level and add oil if
needed (page 64).

Fuel

Check the level and add fuel
(page 59) if needed. Also make
sure the fuel fill cap is securely
fastened.

Drive Chain

Check the condition and slack.
Adjust and lubricate if needed.
Also check the chain slider for
wear and replace if needed
(page 103).

Cables

Check the cable housings for
wear. Check the fittings for
looseness. Replace or tighten as
needed.

Nuts & Bolts

Use a wrench to make sure all
accessible nuts, bolts, and
fasteners are tight.

Spark Plug
& Cap

Check for looseness (page 77).

20YM CRF125FFB_31K28B60_FM.book 27 ページ２０１９年３月１日　金曜日　午後１時４８分

Summary of Contents for CRF125F 2020

Page 1: ...cation of evaporative emission related parts on this OHRV is illegal Violators may be subject to civil and or criminal penalties as provided under California and federal law Black Pantone 3415C CRF125F FB 2020 2020 PRINTED IN XXXX XXXX 2019 XX L 00X31 K28 B600 31K28B60 EN ...

Page 2: ...on available before printing Honda Motor Co Ltd reserves the right to make changes at any time without notice and without incurring any obligation No part of this publication may be reproduced without written permission This vehicle pictured in this owner s manual may not match your actual vehicle Honda Motor Co Ltd 2019 20YM CRF125FFB_31K28B60_FM book 1 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 3: ...or Vehicle Safety Standards or US EPA On Highway Exhaust Emission regulations and operation on public streets roads or highways is illegal The vehicle is equipped with a USDA qualified spark arrester Obey local laws and regulations It conforms to US EPA California and Environment and Climate Change Canada ECCC emission regulations for off road motorcycles 20YM CRF125FFB_31K28B60_FM book 2 ページ２０１９...

Page 4: ...alerts you to potential hazards that could hurt you or others Of course it is not practical or possible to warn you about all hazards associated with operating or maintaining a motorcycle You must use your own good judgment You will find important safety information in a variety of forms including Safety Labels on the motorcycle Safety Messages preceded by a safety alert symbol and one of three si...

Page 5: ...ow to use this motorcycle correctly and safely This entire book is filled with important safety information please read it carefully You WILL be KILLED or SERIOUSLY HURT if you don t follow instructions You CAN be KILLED or SERIOUSLY HURT if you don t follow instructions You CAN be HURT if you don t follow instructions 20YM CRF125FFB_31K28B60_FM book 4 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 6: ...ion function and operation of the throttle brakes and other basic controls Before Riding 23 The importance of wearing a helmet and other protective gear plus how to make sure you and your motorcycle are ready to ride Basic Operation Riding 29 How to start and stop the engine shift gears and brake Also riding precautions Servicing Your Honda 41 Why your motorcycle needs regular maintenance what you...

Page 7: ...ou have a flat tire your engine won t start etc Technical Information 145 ID numbers technical specifications and other technical facts Consumer Information 161 Information on warranties and how to get Honda service manuals Index 168 Quick Reference Handy facts about fuel engine oil tire sizes and air pressures 20YM CRF125FFB_31K28B60_FM book 2 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 8: ...it s just as important to observe the break in guidelines and perform all the pre ride and other periodic checks detailed in this manual We also recommend that you read the owner s manual before you ride It s full of facts instructions safety information and helpful tips To make it easy to use the manual contains a detailed list of topics at the beginning of each section and an index at the back o...

Page 9: ...ver need a special service or repairs remember that your Honda dealer knows your motorcycle best and is dedicated to your complete satisfaction Please report any change of address or ownership to your dealer so we will be able to contact you concerning important product information You may also want to visit our website at USA www powersports honda com Canada www honda ca Happy riding 20YM CRF125F...

Page 10: ...20YM CRF125FFB_31K28B60_FM book 3 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 11: ...ments to read these pages This section also includes a special message for parents and location information for the safety labels on your motorcycle Important Safety Information 2 Important Message to Parents 5 Loading Accessories Modifications 8 Loading 8 Accessories Modifications 10 Safety Labels 12 20YM CRF125FFB_31K28B60_FM book 1 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 12: ...ere is much that you can do to protect yourself when you ride You ll find many helpful recommendations throughout this manual The following are a few that we consider to be most important Always Wear a Helmet It s a proven fact helmets significantly reduce the number and severity of head injuries So always wear an approved motorcycle helmet We also recommend that you wear eye protection sturdy boo...

Page 13: ...istance ask your dealer about riding groups in your area Also be sure to read the Tips Practice Guide for the Off Highway Motorcyclist booklet that came with your motorcycle USA only Be Alert for Off road Hazards The terrain can present a variety of challenges when you ride off road Continually read the terrain for unexpected turns drop offs rocks ruts and other hazards Always keep your speed low ...

Page 14: ... ride and don t let your friends drink and ride either Keep Your Honda in Safe Condition It s important to keep your motorcycle properly maintained and in safe riding condition Having a breakdown can be difficult especially if you are stranded off road far from your base To help avoid problems inspect your motorcycle before every ride and perform all recommended maintenance 20YM CRF125FFB_31K28B60...

Page 15: ...r and age and size are not the only factors PHYSICAL ABILITY is an important consideration For example riders must be big enough to hold the motorcycle up get on and comfortably sit on the seat with both feet touching the ground They should also be able to easily reach and work the brakes throttle and all other controls ATHLETIC ABILITY is necessary for riding a motorcycle Generally speaking your ...

Page 16: ...ng Also be sure that your youngster has a helmet and other appropriate riding equipment and always wears it when operating the vehicle or sitting on it GOOD INSTRUCTION is an important part of hands on training The teacher can either be you or another responsible adult who has experience with off road motorcycle riding For help in finding a qualified instructor talk with your dealer Even if you re...

Page 17: ...o see that the motorcycle is properly maintained and kept in safe operating condition SAFE AND RESPONSIBLE RIDING must be an on going commitment by you and your youngster When you both put safety first you can enjoy more peace of mind and your youngster can enjoy more hours of safe off road riding For your convenience this CRF125F FB comes with an ignition switch and key Remove the key when the mo...

Page 18: ...s that change this motorcycle s design and performance can also make it unsafe Also the weight of any accessories will reduce the maximum load the motorcycle can carry More specific information on load limits accessories and modifications follows How much weight you put on your motorcycle and how you load it are important to your safety If you decide to carry cargo you should be aware of the follo...

Page 19: ...llow these common sense guidelines Keep cargo small and light Make sure it cannot easily be caught on brush or other objects and that it does not interfere with your ability to shift position to maintain balance and stability Place weight as close to the center of the motorcycle as possible Do not attach large or heavy items such as a sleeping bag or tent to the handlebar fork or front fender Make...

Page 20: ...sories you must be personally responsible for proper selection installation and use of non Honda accessories Check with your dealer for assistance and always follow this guideline Make sure the accessory does not reduce ground clearance and lean angle limit suspension travel or steering travel alter your riding position or interfere with operating any controls Accessories Modifications Improper ac...

Page 21: ...eration Such changes could seriously impair your motorcycle s handling stability and braking making it unsafe to ride We also advise you not to make any modifications or remove any equipment such as the USDA qualified spark arrester or emission control system components that would make the motorcycle illegal in your area 20YM CRF125FFB_31K28B60_FM book 11 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 22: ...rn you of potential hazards that could cause serious injury Others provide important safety information Read these labels carefully and don t remove them If a label comes off or becomes hard to read contact your dealer for a replacement For USA For Canada 20YM CRF125FFB_31K28B60_FM book 12 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 23: ...tion and operation of all the basic controls on your motorcycle Operation Component Locations 14 Operating Controls 17 Ignition Switch 17 Start Button 18 Engine Stop Switch 18 Front Brake Lever 18 Throttle 18 Clutch Lever 19 Shift Lever 19 Rear Brake Pedal 19 Kickstarter 19 Side Stand 20 PGM FI malfunction indicator lamp MIL 20 Fuel Reserve Indicator 21 Ignition indicator 21 20YM CRF125FFB_31K28B6...

Page 24: ...Locations ignition switch front brake lever start button throttle grip engine stop switch clutch lever ignition indicator PGM FI malfunction indicator lamp MIL fuel reserve indicator 20YM CRF125FFB_31K28B60_FM book 14 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 25: ...Operating Controls 15 Operation Component Locations rear brake pedal kickstarter 20YM CRF125FFB_31K28B60_FM book 15 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 26: ...16 Operating Controls Operation Component Locations shift lever 20YM CRF125FFB_31K28B60_FM book 16 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 27: ...on After parking the motorcycle remove the key Ignition Switch Key Position Function Key Removal OFF The engine cannot be operated The key can be removed ON With the engine stop switch at RUN and the transmission in neutral the engine can be started The key cannot be removed 1 ignition switch OFF ON 1 ON OFF FRONT 20YM CRF125FFB_31K28B60_FM book 17 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 28: ...The switch must be in the RUN position to start the engine The front brake lever is used to slow or stop your motorcycle To operate pull the lever For information on braking techniques see page 36 The throttle controls engine rpm speed To increase engine rpm rotate the grip toward you To reduce engine rpm rotate the grip away from you The throttle will automatically return to the closed position e...

Page 29: ...utch lever to engage the next higher gear or depress the shift lever to engage the next lower gear See Shifting Gears page 34 The rear brake pedal is used to slow or stop your motorcycle To operate depress the pedal For information on braking techniques see page 36 The kickstarter is used to start the engine To operate swing the kickstarter out from its stored position and depress it through its e...

Page 30: ...m The indicator should also light for a few seconds and then go off when the ignition switch is turned to the ON position with the engine stop switch in the RUN position If the indicator does not come on when it should have your dealer check for problems If it comes on at any other time reduce speed and take the motorcycle to your dealer as soon as possible Side Stand PGM FI malfunction indicator ...

Page 31: ...ch is turned to the ON position with the engine stop switch in the RUN position If the indicator does not come on when it should have your dealer check for problems When the ignition switch is turned on the ignition indicator comes on If the indicator does not come on when it should have your dealer check for problems Fuel Reserve Indicator Ignition indicator 20YM CRF125FFB_31K28B60_FM book 21 ページ...

Page 32: ...22 Operating Controls 20YM CRF125FFB_31K28B60_FM book 22 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 33: ...s how to evaluate your riding readiness and how to perform the recommended pre ride inspection of your Honda If you re a parent be sure you also read the Important Message to Parents on page 5 Are You Ready to Ride 24 Protective Apparel 24 Is Your Motorcycle Ready to Ride 26 Pre ride Inspection 26 20YM CRF125FFB_31K28B60_FM book 23 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 34: ...e wearing an approved motorcycle helmet with chin strap tightened securely eye protection and other protective clothing For your safety we strongly recommend that you always wear an approved motorcycle helmet eye protection boots gloves long pants and a long sleeved jersey shirt or jacket whenever you ride Although complete protection is not possible wearing the proper gear can reduce the chance o...

Page 35: ...ou buy USA only Always wear a face shield or goggles to protect your eyes and help your vision Additional Riding Gear In addition to a helmet and eye protection we also recommend Sturdy off road motorcycle boots to help protect your feet ankles and lower legs Off road motorcycle gloves to help protect your hands Riding pants with knee and hip pads a riding jersey with padded elbows and a chest sho...

Page 36: ...ul supervision and make sure they are performed safely Check the following items before you get on the motorcycle Improperly maintaining this motorcycle or failing to correct a problem before riding can cause a crash in which you can be seriously hurt or killed Always perform a pre ride inspection before every ride and correct any problems Pre ride Inspection Tires Use a gauge to check the air pre...

Page 37: ...uel fill cap is securely fastened Drive Chain Check the condition and slack Adjust and lubricate if needed Also check the chain slider for wear and replace if needed page 103 Cables Check the cable housings for wear Check the fittings for looseness Replace or tighten as needed Nuts Bolts Use a wrench to make sure all accessible nuts bolts and fasteners are tight Spark Plug Cap Check for looseness ...

Page 38: ...e the front brake lever and step on the rear brake pedal to check that the controls operate normally pages 84 88 Check for proper freeplay pages 84 88 Adjust freeplay if necessary pages 84 88 Clutch Lever Check for smooth operation and adjust if needed page 74 Indicators Turn the ignition on and check for normal operation of the indicators page 20 21 Remember be sure to take care of any problem yo...

Page 39: ...the Tips Practice Guide for the Off Highway Motorcyclist booklet that came with your Honda USA only To protect your new engine and enjoy optimum performance and service life refer to Break in Guidelines page 153 Safe Riding Precautions 30 Starting Stopping the Engine 31 Preparation 31 Starting Procedure 32 Flooded Engine 33 Bank Angle Sensor Ignition Cut off System 33 How to Stop the Engine 33 Shi...

Page 40: ... or operating the engine in an enclosed area such as a garage Your motorcycle s exhaust contains poisonous carbon monoxide gas which can collect rapidly in an enclosed area and cause illness or death Your motorcycle is not equipped with lights Do not ride at night Safe Riding Precautions Running the engine of your vehicle while in an enclosed or even partially enclosed area can cause a rapid build...

Page 41: ...on in gear by pulling in the clutch lever before operating the start button Before starting insert the key and turn the ignition switch to the ON position and confirm the following The transmission is in neutral The engine stop switch is at RUN The PGM FI malfunction indicator lamp MIL is off Preparation 20YM CRF125FFB_31K28B60_FM book 31 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 42: ...lt Then let the kickstarter return to the top of its stroke With the throttle completely closed operate the kickstarter starting from the top of the stroke kick through to the bottom with a rapid continuous motion Allowing the kickstarter to snap back freely against the pedal stop can damage the engine case 2 If you cannot start the engine open the throttle slightly about 0 1 in 3 mm without freep...

Page 43: ...r Crank the engine several times with the kick starter 3 Follow the normal engine starting procedure page 32 Your motorcycle s banking lean angle sensor system is designed to automatically stop the engine and fuel pump if the motorcycle is overturned To stop the engine shift into neutral and turn the ignition switch to the OFF position Flooded Engine Bank Angle Sensor Ignition Cut off System How t...

Page 44: ...elease the front brake Gradually open the throttle while you slowly release the clutch lever If engine rpm speed is too low when you release the clutch lever the engine will stall If engine rpm is too high or you release the clutch lever too quickly your motorcycle may lurch forward 5 When you attain a moderate speed close the throttle pull the clutch lever in and raise the shift lever After shift...

Page 45: ...g may damage the engine transmission and drive train Learning when to shift gears comes with experience Upshift to a higher gear or reduce throttle before engine rpm speed gets too high Downshift to a lower gear before you feel the engine laboring lugging at low rpm Downshifting can help slow your motorcycle especially on downhills However downshifting when engine rpm is too high can cause engine ...

Page 46: ...g control of your motorcycle If this happens release the brake controls steer straight ahead until you regain control then reapply the brakes more gently Generally reduce your speed or complete braking before beginning a turn Avoid braking or closing the throttle quickly while turning Either action may cause one or both wheels to slip Any wheel slip will reduce your control of your motorcycle When...

Page 47: ...ting with intermittent use of both brakes When you brake to a stop pull the clutch lever in before stopping completely to prevent stalling the engine For support put your left foot on the ground first then your right foot when you have finished braking 20YM CRF125FFB_31K28B60_FM book 37 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 48: ...ration Riding Parking Lower the side stand to support your motorcycle Turn the ignition switch OFF and remove the key Always choose a level place to park 20YM CRF125FFB_31K28B60_FM book 38 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 49: ...your motorcycle and remove any dirt mud brush rocks or other objects you may have picked up along the way After cleaning carefully inspect your motorcycle for leaks or damage Be sure to lubricate the drive chain page 107 to prevent rusting 20YM CRF125FFB_31K28B60_FM book 39 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 50: ...40 Basic Operation Riding 20YM CRF125FFB_31K28B60_FM book 40 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 51: ...ission and noise emission requirements of the U S Environmental Protection Agency EPA the California Air Resources Board CARB and Environment and Climate Change Canada ECCC see page 154 For information about replacing fuse see page 136 An optional tool kit may be available Check with your dealer s parts department USA only Maintenance replacement or repair of the emission control devices and syste...

Page 52: ... Service Procedures Fluids Filters Fuel 58 Engine Oil 61 Air Cleaner 67 Crankcase Breather 71 Engine Throttle 72 Clutch System 74 Spark Plug 77 Spark Arrester 79 Chassis Suspension 81 Brakes 84 Wheels 92 Tires Tubes 98 Side Stand 102 Drive Chain 103 Electrical Battery 110 Appearance Care 115 20YM CRF125FFB_31K28B60_FM book 42 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 53: ...ditions More frequent service is needed if you subject your motorcycle to severe use such as competition or ride in unusually wet or dusty areas Frequent servicing of the air cleaner is especially important to help you avoid a possible costly engine repair If your motorcycle overturns or is involved in a crash be sure your dealer inspects all major parts even if you are able to make some repairs I...

Page 54: ...hat this motorcycle is properly maintained and kept in safe operating condition For youngsters learning how to take care of a motorcycle and perform basic maintenance can be an important part of their riding experience However if you allow a youngster to perform or assist in any maintenance task such as filling the tank with gasoline you should provide close supervision to make sure that it is per...

Page 55: ... or repairs This will help eliminate several potential hazards Carbon monoxide poisoning from engine exhaust Be sure there is adequate ventilation whenever you operate the engine Burns from hot motorcycle parts Let the engine and exhaust system cool before touching Injury from moving parts Do not run the engine unless instructed to do so cont d Failure to properly follow maintenance instructions a...

Page 56: ...nly a non flammable high flash point solvent such as kerosene not gasoline to clean parts Keep cigarettes sparks and flames away from all fuel related parts Remember that your dealer knows your motorcycle best and is fully equipped to maintain and repair it To ensure the best quality and reliability use only new Honda Genuine Parts or their equivalents for repair and replacement If you have the to...

Page 57: ...red tools Procedures for items in this schedule are provided in a service manual available for purchase from your dealer page 162 Because your motorcycle does not have an odometer service intervals in the maintenance schedules are expressed in terms of riding days as well as miles To avoid overlooking required service we urge you to develop a convenient way to record the number of days and or mile...

Page 58: ...e proper tools and service data and is mechanically qualified Refer to the official Honda Service Manual page 162 In the interest of safety we recommend these items be serviced only by your dealer Summary of Maintenance Schedule Notes and Procedures NOTES 1 Service more frequently when ridden in wet or dusty conditions 2 Replace every 2 years Replacement requires mechanical skill Maintenance Proce...

Page 59: ...rst Initial Maint Regular Maint Interval Refer to page mi 100 600 1 200 1 800 2 400 km 150 1 000 2 000 3 000 4 000 Note Month 1 6 12 18 24 Fuel Line I I Fuel Filter R every 4 800 mi 8 000 km Throttle Operation I I 72 Air Cleaner Note 1 C C C C 67 Crankcase Breather I I I I 71 Spark Plug I I I I 77 Valve Clearance I I I I I Engine Oil R R R R R 61 Engine Oil Strainer Screen C C Engine Oil Centrifug...

Page 60: ...ge mi 100 600 1 200 1 800 2 400 km 150 1 000 2 000 3 000 4 000 Note Month 1 6 12 18 24 Drive Chain Note 1 I L I L every 300 mi 500 km or 3 months 103 Drive Chain Slider I I I I 104 Brake Fluid Note 2 I I I I 85 Brake Shoes Pads Wear I I I I 87 90 Brake System I I I I I 84 Clutch System I I I I I 74 Side Stand I I 102 Suspension I I 81 Spark Arrester C every 1 000 mi 1 600 km or every 100 operating...

Page 61: ...urself about or mention to your dealer Of course if you find any problem while servicing your motorcycle be sure it is corrected as soon as possible Miles km or Months Date Performed By Notes 600 1 000 or 6 1 200 2 000 or 12 1 800 3 000 or 18 2 400 4 000 or 24 3 000 5 000 or 30 3 600 6 000 or 36 4 200 7 000 or 42 4 800 8 000 or 48 5 400 9 000 or 54 20YM CRF125FFB_31K28B60_FM book 51 ページ２０１９年３月１日 ...

Page 62: ...2 Servicing Your Honda Maintenance Component Locations fuel fill cap throttle grip front brake lever clutch lever front brake fluid reservoir 20YM CRF125FFB_31K28B60_FM book 52 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 63: ...Servicing Your Honda 53 Maintenance Component Locations engine oil fill cap dipstick spark arrester rear brake pedal spark plug 20YM CRF125FFB_31K28B60_FM book 53 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 64: ...da Maintenance Component Locations air cleaner crankcase breather tube battery main fuse drive chain front brake caliper engine oil drain bolt sub fuse side stand 20YM CRF125FFB_31K28B60_FM book 54 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 65: ...on page 45 The spoke wrench is delivered with your motorcycle for tightening or loosening the spokes USA only You will need to provide your own tools to perform any owner maintenance 1 1 spoke wrench 20YM CRF125FFB_31K28B60_FM book 55 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 66: ...and collars 3 2 Remove the seat backward Installation 1 Insert the front recess 4 into the front prong 5 and the rear prong 6 into the rear recess 7 2 Install the collars onto the bolts Tighten the bolts securely 5 2 6 4 3 1 1 seat 2 bolts 3 collars 4 front recess 5 front prong 6 rear prong 7 rear recess 7 2 20YM CRF125FFB_31K28B60_FM book 56 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 67: ...m the hole 8 on the shroud Left Side Cover Installation 1 Hook the tab 9 to the shroud and slide the top of the side cover under the bottom edge of the seat 2 Align the prong with the rubber grommet and also the boss with the hole on the shroud 3 Install the collar onto the bolt B 4 Install the bolt B and bolt A and tighten them securely 2 4 5 1 1 left side cover 2 bolt A 3 bolt B 4 collar 5 prong...

Page 68: ...ng experienced while operating under a heavy load such as climbing a hill is no cause for concern If pinging or spark knock occurs at a steady engine speed under normal load change brands of gasoline If pinging or spark knock persists consult your dealer Use only unleaded fuel in your Honda If you ride your Honda in a country where leaded fuel might be available take precautions to use only unlead...

Page 69: ...iller neck 4 Avoid overfilling the tank There should be no fuel in the filler neck cont d Refueling Procedure 2 4 3 1 1 fuel fill cap 2 breather tube 3 steering stem nut 4 lower edge of filler neck Gasoline is highly flammable and explosive You can be burned or seriously injured when handling fuel Stop the engine and keep heat sparks and flame away Handle fuel only outdoors Wipe up spills immediat...

Page 70: ...g turn the fuel fill cap clockwise until it clicks 4 Insert the breather tube in the steering stem nut If you replace the fuel fill cap use a Honda Genuine replacement part or equivalent 20YM CRF125FFB_31K28B60_FM book 60 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 71: ...ld or dirty oil can damage your engine Running the engine with insufficient oil can cause serious damage to the engine and transmission Oil Recommendation API classification SG or higher except oils labeled as energy conserving or resource conserving on the circular API service label viscosity weight SAE 10W 30 JASO T 903 standard MA suggested oil Pro Honda GN4 4 stroke oil USA Canada or Honda 4 s...

Page 72: ...cycle does not need oil additives Use the recommended oil Do not use oils with graphite or molybdenum additives They may adversely affect clutch operation Do not use API SH or higher oils displaying a circular API energy conserving or resource conserving service label on the container They may affect lubrication and clutch performance Do not use non detergent vegetable or castor based racing oils ...

Page 73: ...ted range JASO T 903 standard The JASO T 903 standard is an index for engine oils for 4 stroke motorcycle engines There are two classes MA and MB Oil conforming to the standard is labeled on the oil container For example the following label shows the MA classification 1 2 1 oil code 2 oil classification 20YM CRF125FFB_31K28B60_FM book 63 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 74: ...ipstick until it seats but do not screw it in 7 Remove the oil fill cap dipstick and check the oil level If the oil is at or near the upper level mark 2 you do not have to add oil If the oil is below or near the lower level mark 3 add the recommended oil until it reaches the upper level mark Do not overfill 8 Insert the oil fill cap dipstick and screw it in tightly 9 Check for oil leaks Checking A...

Page 75: ...lace a drain pan under the crankcase 4 To drain the oil remove the oil fill cap dipstick oil drain bolt 1 and sealing washer 2 5 Pour the drained oil into a suitable container and dispose of it in an approved manner page 127 Improper disposal of drained fluids is harmful to the environment cont d Changing Engine Oil 1 2 1 oil drain bolt 2 sealing washer UNDER ENGINE 20YM CRF125FFB_31K28B60_FM book...

Page 76: ...the crankcase approximately 0 9 US qt 0 85 8 Install the oil fill cap dipstick securely 9 Start the engine and let it idle for 3 5 minutes Stop the engine Wait 2 3 minutes 10 With the motorcycle held upright on level ground check the oil level If needed add oil page 64 until it reaches the upper level mark Do not overfill 11 Check for oil leaks 20YM CRF125FFB_31K28B60_FM book 66 ページ２０１９年３月１日金曜日 ...

Page 77: ...rrect service interval for your riding conditions Your motorcycle s air cleaner has very specific performance requirements Use a new Honda Genuine air cleaner specified for your model or an air cleaner of equal quality Using the wrong air cleaner may result in premature engine wear Proper air cleaner maintenance can prevent premature engine wear or damage expensive repairs low engine power poor ga...

Page 78: ...leaner housing cover 2 3 Unhook the set spring 3 take care to avoid bending the set spring and set spring holder 4 4 Remove the air cleaner 5 Cleaning 1 3 set spring 4 set spring holder 5 air cleaner LEFT SIDE 1 retainer clips 2 air cleaner housing cover 3 4 2 5 1 20YM CRF125FFB_31K28B60_FM book 68 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 79: ...maining solvent Avoid twisting or wringing the air cleaner This can tear the foam 7 Inspect for tears or cracks in the foam or seams of the air cleaner Replace the air cleaner if it is damaged 8 Allow the air cleaner to dry thoroughly before applying oil A wet air cleaner will not fully absorb the oil cont d 6 5 5 air cleaner 6 air cleaner holder 8 7 tabs 8 air cleaner holes 7 8 20YM CRF125FFB_31K...

Page 80: ...he tabs 7 in the air cleaner holes 8 11 Clean the inside of the air cleaner housing 12 Apply a thin coat of grease to the sealing surface of the air cleaner 13 Install the air cleaner assembly by inserting the upper tab 9 on the cleaner into the upper hole 10 in the air cleaner housing and the lower tab 11 into the lower hole 12 Hook the set spring Check that the air cleaner is properly seated 14 ...

Page 81: ...n tube overflows the air filter may become contaminated with engine oil causing poor engine performance 1 Place a suitable container under the crankcase breather tube 2 Remove the crankcase breather tube 1 3 Drain deposits into a suitable container 4 Install the crankcase breather tube 1 LEFT SIDE 1 crankcase breather tube 20YM CRF125FFB_31K28B60_FM book 71 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 82: ... Turn the adjuster 4 4 Tighten the lock nut Return the dust cover to its normal position 5 After adjustment check for smooth rotation of the throttle grip from fully closed to fully open in all steering positions If you can t get the freeplay within the specified range contact your dealer Throttle Freeplay 1 2 rubber dust cover 3 lock nut 4 adjuster RIGHT SIDE 4 2 1 freeplay increase freeplay decr...

Page 83: ...ee your dealer 3 Inspect the condition of the throttle cables 2 from the throttle grip down to the throttle body If the cable is kinked or chafed have it replaced 4 Check the cables for tension or stress in all steering positions 5 Lubricate the cables with a commercially available cable lubricant to prevent premature rust and corrosion Throttle Inspection 1 throttle 2 throttle cables 1 2 20YM CRF...

Page 84: ... adjustments are generally made with the minor clutch cable adjuster Minor clutch assembly adjuster 1 Pull the rubber dust cover 2 back 2 Loosen the minor lock nut 3 3 Turn the minor clutch cable adjuster 4 to obtain the specified freeplay Clutch Freeplay 1 1 clutch lever LEFT SIDE 2 2 rubber dust cover 3 minor lock nut 4 minor clutch cable adjuster LEFT SIDE increase freeplay decrease freeplay 3 ...

Page 85: ...urn the minor clutch cable adjuster 4 all the way in to provide maximum freeplay 2 Tighten the minor lock nut and pull the rubber dust cover 2 back to its normal position 3 Hold the major adjusting nut 5 and loosen the major lock nut 6 4 Turn the major adjusting nut to obtain the specified freeplay 5 Hold the major adjusting nut and tighten the major lock nut Check the adjustment cont d 6 5 major ...

Page 86: ...tch does not work properly the cable may be kinked or worn or the clutch discs may be worn See your dealer or refer to the official Honda Service Manual page 162 Check that the clutch lever assembly is positioned properly and the securing bolts are tight Check the clutch cable for kinks or signs of wear If necessary have it replaced Lubricate the clutch cable with a commercially available cable lu...

Page 87: ...st riding conditions Use only the recommended type of spark plugs in the recommended heat range Using spark plugs with an improper heat range can cause engine damage Spark Plug Recommendation Standard CPR6EA 9 NGK 3 1 2 1 center electrode 2 side electrode 3 spark plug gap 20YM CRF125FFB_31K28B60_FM book 77 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 88: ...washer is in good condition If you have to install a new plug first check the gap 6 With the plug washer attached thread the spark plug in by hand to prevent cross threading 7 Tighten the spark plug If the old plug is good 1 8 turn after it seats If installing a new plug tighten it twice to prevent loosening a First tighten the plug 1 2 turn after it seats b Then loosen the plug c Next tighten the...

Page 89: ...d also complies with USDA regulations for regular maintenance to assure proper function The spark arrester prevents random sparks from the combustion process in your engine from reaching the environment 1 Allow the engine and muffler to cool 2 Remove the bolts 1 the spark arrester 2 and the gasket 3 from the muffler 4 cont d 2 1 3 4 RIGHT REAR 1 bolts 2 spark arrester 3 gasket 4 muffler 20YM CRF12...

Page 90: ... to avoid damaging the spark arrester screen The spark arrester must be free of breaks and holes Replace if necessary 4 Install the spark arrester with a new gasket and tighten the bolts to the specified torque 7 lbf ft 10 N m 1 0 kgf m 5 5 spark arrester screen 20YM CRF125FFB_31K28B60_FM book 80 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 91: ... your dealer for further inspection Your dealer is qualified to determine whether or not replacement parts or repairs are needed 1 Check fork operation Pull the front brake lever in to lock the brake Then pump up and down on the fork legs several times The suspension should function smoothly There should be no oil leakage cont d Front Suspension Inspection 1 1 1 1 mounting bolts 20YM CRF125FFB_31K...

Page 92: ...tion 1 Place the motorcycle on a maintenance stand Push hard against the side of the rear wheel and feel for any freeplay which indicates worn swingarm bearings 1 Rear Suspension Inspection 2 3 RIGHT SIDE 1 swingarm bearing 2 shock absorber attachment points 3 suspension linkage attachment points 3 1 1 LEFT SIDE 1 swingarm bearing 20YM CRF125FFB_31K28B60_FM book 82 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 93: ...ber attachment points 2 and rear suspension linkage attachment points 3 are secure 3 Check for oil leaks in the shock absorber If any rear suspension components appear worn or damaged see your dealer for further inspection 20YM CRF125FFB_31K28B60_FM book 83 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 94: ...ke lever freeplay does not feel within the normal range while riding check the brake pads If they are not worn beyond the recommended limit page 87 there is probably air in the brake system See your dealer to have the air bled from the system Never use adjusters other than those designed for this motorcycle Install a new adjuster from the lever side with the lock nut under the head of the adjuster...

Page 95: ... the wheel and check that it rotates freely Repeat this procedure several times 6 Check freeplay by pulling in slowly on the front brake lever until the brake starts to engage Freeplay LESS THAN 13 16 in 20 mm If brake lever freeplay is not within this range see your dealer Front Brake Fluid Level With the motorcycle in an upright position check the fluid level It should be above the LWR mark 1 If...

Page 96: ...and painted surfaces Handle with care Wipe up spills immediately Avoid brake fluid contact with skin or eyes If it comes in contact with your eyes wash them out with clean water and immediately call a doctor If it comes in contact with your skin wash with clean water and if necessary call a doctor Other Inspections Make sure there are no fluid leaks Check for deterioration or cracks in the hoses a...

Page 97: ...ace both pads as a set See your dealer for this service Check that the front lever assembly is positioned properly and the securing bolts are tight Brake fluid should be added and replaced by your dealer The recommended brake fluid is Honda DOT 3 or DOT 4 Brake Fluid or any brake fluid of equal quality and performance Use fresh brake fluid from a sealed container Brake Pad Wear LEFT SIDE 1 front b...

Page 98: ...2 Check freeplay by slowly depressing the rear brake pedal 1 until the brake starts to engage Freeplay 3 8 13 16 in 10 20 mm If necessary adjust to the specified range Rear Brake Pedal Freeplay RIGHT SIDE 1 rear brake pedal 1 20YM CRF125FFB_31K28B60_FM book 88 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 99: ...at this procedure several times 3 Check the freeplay If you can t adjust the freeplay properly see your dealer After adjustment push the brake arm 4 to confirm that there is a gap between the adjusting nut 2 and the brake arm pin 3 After adjustment confirm the freeplay of the brake pedal RIGHT REAR 2 3 2 adjusting nut 3 brake arm pin increase freeplay decrease freeplay 3 4 2 2 adjusting nut 3 brak...

Page 100: ...rake panel 1 Place your motorcycle on its side stand 2 Apply the brake control pedal and check the movement of the arrow 1 on the brake arm 2 Replace the brake shoes if the arrow aligns with the reference mark 3 on the brake panel 4 upon full application of the brake If replacement is necessary see your dealer Brake Shoe Wear RIGHT REAR 1 arrow 2 brake arm 3 reference mark 4 brake panel 3 1 4 2 20...

Page 101: ...sure the rear brake rod brake arm spring and fasteners are in good condition 1 Loosen the lock nut 1 and turn the stopper bolt 2 2 Tighten the lock nut 3 Check the freeplay page 88 Other Inspections Lubrication Rear Brake Pedal Height Adjustment RIGHT SIDE 1 2 1 lock nut 2 stopper bolt 20YM CRF125FFB_31K28B60_FM book 91 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 102: ...parts Excessively loose spokes may result in instability at high speeds and the possible loss of control Neglecting this maintenance may also cause rim or spoke damage It s also important that the rim lock is secure to prevent tire slippage It is not necessary to remove the wheels to perform the recommended service in the Maintenance Schedule However information for wheel removal is provided for e...

Page 103: ...spokes or rim lock 3 3 Rotate the wheel slowly to see if it appears to wobble If it does the rim is out of round or not true If the wobble is noticeable see your dealer for inspection Wheel Rims Spokes REAR 1 2 1 wheel rim 2 spoke 3 rim lock 3 20YM CRF125FFB_31K28B60_FM book 93 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 104: ...ver when the wheel is off the motorcycle This will force the caliper pistons out of the cylinders The result will be loss of brake fluid If this occurs the brake system will require service See your dealer for this service Avoid getting grease oil or dirt on the disc or pad surfaces Any contamination can cause poor brake performance or rapid pad wear after reassembly Front Wheel Removal 1 2 1 axle...

Page 105: ...e nut to the specified torque 46 lbf ft 62 N m 6 3 kgf m 4 After installing the wheel apply the brake several times and then check if the wheel rotates freely Recheck the wheel if the brake drags or if the wheel does not rotate freely Check front brake adjustment page 84 If a torque wrench was not used to install the wheel see your dealer as soon as possible to verify proper assembly Improper asse...

Page 106: ... on the chain adjuster on both sides 4 Unscrew the rear axle nut 6 Pull the rear axle shaft 7 out Push the wheel forward and derail the drive chain from the rear sprocket Remove the wheel Take care to prevent getting grease oil or dirt on the brake shoe surfaces This can cause poor brake performance or rapid brake shoe wear after reassembly Rear Wheel Removal RIGHT REAR LEFT REAR 1 6 7 4 5 3 5 1 a...

Page 107: ...the specified torque 46 lbf ft 62 N m 6 3 kgf m 4 Adjust the rear brake page 89 5 Apply the rear brake release it then spin the wheel and check that it rotates freely Repeat this procedure several times If a torque wrench was not used to install the wheel see your dealer as soon as possible to verify proper assembly Improper assembly may lead to loss of braking capacity RIGHT REAR 10 9 8 8 lug 9 s...

Page 108: ... life and riding comfort Generally underinflated tires wear unevenly adversely affect handling and are more likely to fail from being overheated Underinflated tires can also cause wheel damage in rocky terrain Overinflated tires make your motorcycle ride harshly are more prone to damage from surface hazards and wear unevenly Make sure the valve stem caps are secure If necessary install new caps Us...

Page 109: ...tires will be underinflated The correct cold tire pressures are If you decide to adjust tire pressures for a particular riding condition make changes a little at a time A flat tire or blowout is inconvenient and may even cause a crash Take time to inspect your tires and wheels before you ride For more information about handling flat tires see page 135 Front 15 psi 100 kPa 1 0 kgf cm2 Rear 15 psi 1...

Page 110: ...both valve stems A tilted valve stem indicates the tube is slipping inside the tire or the tire is slipping on the rim See your dealer If a tube is punctured or damaged you should replace it as soon as possible A repaired tube may not have the same reliability as a new one and it may fail while you are riding For information on making a temporary repair see page 135 Use a replacement tube equivale...

Page 111: ...n a new tire could fail Have the wheel balanced after a new tire is installed We recommend that tires be replaced by your dealer Tire Replacement Installing improper tires on your motorcycle can affect handling and stability This can cause a crash in which you can be seriously hurt or killed Always use the size and type of tires recommended in this owner s manual Front CRF125F 70 100 17M C 40M CRF...

Page 112: ...spring 1 for damage and loss of tension 2 Check the side stand assembly for freedom of movement If the side stand is stiff or squeaky clean the pivot area and lubricate the pivot bolt with clean engine oil LEFT SIDE 1 1 side stand spring 20YM CRF125FFB_31K28B60_FM book 102 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 113: ...ntenance will be necessary Before servicing your drive chain turn the engine OFF lower the side stand and check that your transmission is in neutral It is not necessary to remove or replace the drive chain to perform the recommended service in the Maintenance Schedule 1 Check slack in the lower drive chain 1 run midway between the sprockets Drive chain slack should allow the following vertical mov...

Page 114: ... rusted links kinked or binding links excessive wear Replace the drive chain page 108 if it has damaged rollers loose pins or kinks that cannot be freed Lubricate the drive chain page 107 if it appears dry or shows signs of rust Lubricate any kinked or binding links and work them free Adjust chain slack if needed 4 Check the chain slider 2 for wear If the depth 3 of the chain slider reaches the se...

Page 115: ...nd its service limit To check the chain s service limit remove the drive chain page 108 Then measure the distance between a span of 41 pins from pin center to pin center If the distance exceeds the service limit the drive chain is worn out and should be replaced New Chain 20 0 in 508 mm Service Limit 20 4 in 518 mm Measure a span of 41 pins 20YM CRF125FFB_31K28B60_FM book 105 ページ２０１９年３月１日金曜日午後１...

Page 116: ...n with worn sprockets will cause rapid chain wear 1 Loosen the rear axle nut 1 2 Loosen the lock nuts 2 on both sides of the swingarm Damaged Sprocket Teeth Worn Sprocket Teeth REPLACE REPLACE Normal Sprocket Teeth GOOD Adjustment RIGHT SIDE 5 2 3 1 1 rear axle nut 2 lock nut 3 adjusting nut 4 notch 5 graduated scale 4 20YM CRF125FFB_31K28B60_FM book 106 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 117: ...mbly 6 Tighten the adjusting nuts lightly Then while holding the adjusting nuts with a wrench tighten the lock nuts 7 Recheck drive chain slack 8 Check rear brake pedal freeplay and adjust as necessary page 88 Freeplay is affected when repositioning the rear wheel to adjust drive chain slack Lubricate every 300 miles 500 km or sooner if chain appears dry Turn the rear wheel by hand Saturate each c...

Page 118: ...he drive chain 2 Clean the drive chain with a non flammable high flash point solvent such as kerosene not gasoline and allow it to dry 3 Inspect the drive chain for possible wear or damage Replace the drive chain if it has damaged rollers loose fitting links or otherwise appears unserviceable Replacement chain DID 428HD Removal Cleaning Replacement 1 master link retaining clip 1 LEFT SIDE 20YM CRF...

Page 119: ...link retaining clip so that the closed end of the retaining clip will face the direction of forward wheel rotation The master link is the most critical element of drive chain security Master links are reusable as long as they remain in excellent condition We recommend installing a new master link retaining clip when the drive chain is reassembled You may find it easier to install a new chain by co...

Page 120: ...ccessories on your motorcycle or do not ride frequently we recommend that you charge the battery frequently see Battery Charging page 114 If you do not expect to ride your motorcycle for at least two weeks we recommend you remove the battery or at least disconnect the battery cables negative cable first If you plan to store your motorcycle see Battery Storage page 111 If your battery seems weak an...

Page 121: ...esults from removing the battery and slow charging it every 30 days see Battery Charging page 114 Before you remove the battery be sure to read all the information that follows as well as the information on the battery label Battery Storage The battery gives off explosive hydrogen gas during normal operation A spark or flame can cause the battery to explode with enough force to kill or seriously h...

Page 122: ...nnect the negative terminal 1 from the battery 4 Disconnect the positive terminal 2 from the battery 5 Release the battery holder band 3 from the hook then remove the battery 4 taking care not to drop the terminal nuts UNDER SEAT 3 4 1 2 1 negative terminal lead 2 positive terminal lead 3 battery holder band 4 battery 20YM CRF125FFB_31K28B60_FM book 112 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 123: ...zing temperatures and direct sunlight 8 Clean the battery box after removing the battery for storage 9 Slow charge the battery see following section once every 30 days Installation 1 Reinstall in the reverse order of removal Be sure to connect the positive terminal first then the negative terminal 2 Check all bolts and other fasteners are secure 20YM CRF125FFB_31K28B60_FM book 113 ページ２０１９年３月１日金曜...

Page 124: ...ur Honda which can be purchased from your dealer These units can be left connected for long periods without risking damage to the battery However do not intentionally leave the charger connected longer than the time period recommended in the charger s instructions Avoid using an automotive type battery charger An automotive charger can overheat a motorcycle battery and cause permanent damage Batte...

Page 125: ... damage wear and gasoline or oil leaks To clean your motorcycle you may use water a mild neutral detergent and water a mild spray and wipe cleaner polisher a mild spray and rinse cleaner degreaser and water Avoid products that contain harsh detergents or chemical solvents that could damage the metal paint and plastic on your motorcycle If your motorcycle is still warm from recent operation give th...

Page 126: ...tain parts of your motorcycle 1 Rinse your motorcycle thoroughly with cool water to remove loose dirt 2 Fill a bucket with cool water Mix in a mild neutral detergent such as dish washing liquid or a product made especially for washing motorcycles or automobiles 3 Wash your motorcycle with a sponge or a soft towel As you wash check for heavy grime If necessary use a mild cleaner degreaser to remove...

Page 127: ...a precaution ride at a slow speed and apply the brakes several times This will help dry the brakes and restore normal braking performance Refer to Safety Precautions on page 45 When the exhaust pipe and muffler are painted do not use a commercially available abrasive kitchen cleaning compound Use a neutral detergent to clean the painted surface on the exhaust pipe and muffler If you are not sure i...

Page 128: ...118 Servicing Your Honda 20YM CRF125FFB_31K28B60_FM book 118 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 129: ...adventure how to transport and store your Honda and how to be an environmentally responsible motorcycle owner Preparing for a Ride 120 Transporting Your Honda 122 Storing Your Honda 124 You the Environment 126 20YM CRF125FFB_31K28B60_FM book 119 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 130: ...ubs and off road magazines are good sources of information Along with your motorcycle and riding gear you should take along some tools and supplies in case you have a problem For some of the difficulties you might encounter see Taking Care of the Unexpected which begins on page 129 We recommend that you always take water food a first aid kit and your owner s manual Other items you should consider ...

Page 131: ...expect to ride how far you might go from your base camp or help and how experienced you or your companions are in making repairs If you decide to take some tools spare parts or other supplies on the trail be sure you can carry them safely and know how to use them Also be sure to follow the loading guidelines and weight limit page 9 What to Take on the Trail 20YM CRF125FFB_31K28B60_FM book 121 ページ ...

Page 132: ...own straps Avoid using rope which can loosen and allow the motorcycle to fall over To secure your motorcycle brace the front wheel against the front of the truck bed or trailer rail Attach the lower ends of two straps to the tie down hooks on your vehicle Attach the upper ends of the straps to the handlebar one on the right side the other on the left close to the fork 20YM CRF125FFB_31K28B60_FM bo...

Page 133: ... is compressed about half way Too much pressure is unnecessary and could damage the fork seals Use another tie down strap to keep the rear of the motorcycle from moving We recommend that you do not transport your motorcycle on its side This can damage the motorcycle and leaking gasoline could be a hazard 20YM CRF125FFB_31K28B60_FM book 123 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 134: ...rgotten and it will be easier to get your motorcycle running again For more information about storage refer to the Honda Winter Storage Guide available from your dealer USA only We suggest you perform the following procedures to keep your motorcycle in top condition These storage procedures will reduce the deterioration that can occur during storage 20YM CRF125FFB_31K28B60_FM book 124 ページ２０１９年３月１...

Page 135: ...um of daily temperature variation 8 Cover your motorcycle with a porous material Avoid using plastic or similar non breathing coated materials that restrict air flow and allow heat and moisture to accumulate 1 Uncover and clean your motorcycle 2 If your motorcycle has been stored for more than four months change the engine oil page 65 3 If your motorcycle has been stored for more than two months d...

Page 136: ...icles Keep the Noise Down Loud motorcycles can be offensive Ride as quietly as possible don t remove your spark arrester and don t modify the muffler or any other part of your air intake and exhaust systems Such modifications not only increase noise they also reduce engine performance and may be illegal Choose Sensible Cleaners Use a biodegradable detergent when you wash your motorcycle Avoid aero...

Page 137: ...r drinking water lakes rivers and oceans Before changing your oil make sure you have the proper containers Put oil and other toxic wastes in separate sealed containers and take them to a recycling center Call your local or state office of public works or environmental services to find a recycling center in your area and get instructions on how to dispose of non recyclable wastes 20YM CRF125FFB_31K...

Page 138: ...128 Tips 20YM CRF125FFB_31K28B60_FM book 128 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 139: ...you deal with a wide range of problems Take time to read this section before you ride Also review the tips in Preparing for a Ride page 120 General Guidelines 130 If Your Engine Quits or Won t Start 131 If You Have a Flat Tire 135 If a Fuse Blows 136 If You Crash 139 If You Lose Your Key 140 If a Component Fails 141 If Your Battery Is Low or Dead 142 20YM CRF125FFB_31K28B60_FM book 129 ページ２０１９年３月...

Page 140: ...relatively minor and you have the tools supplies and skills to make a permanent repair you may be able to fix it on the trail and continue riding Or you may be able to make a temporary repair that allows you to slowly ride back to your base where you can make a permanent repair or get help When a problem is more serious or you don t have the tools supplies experience or time to deal with it you ne...

Page 141: ...rformance problems In many cases the cause of the problem may be a simple operational oversight If you have a problem starting the engine or experience poor engine performance the following information may help you If you can t correct the problem see your dealer If your motorcycle won t start listen as you press the start button If you don t hear the starter motor turning refer to the Starter mot...

Page 142: ... in neutral Shift into neutral blown fuse Replace with a new fuse of the same rating page 136 battery lead loose Tighten the battery lead low or dead battery Charge the battery page 114 If charging doesn t help see your dealer faulty starter motor If all possible causes are negative the starter motor may be faulty See your dealer 20YM CRF125FFB_31K28B60_FM book 132 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 143: ... spark plug cap securely If the engine still won t start see your dealer loose battery cables Tighten the battery terminal bolts weak battery Charge the battery page 114 If charging doesn t help see your dealer SYMPTOM Engine starts but runs poorly POSSIBLE CAUSE WHAT TO DO idles roughly too fast stalls See your dealer runs erratically misfires See your dealer blubbers rich fuel mixture See your d...

Page 144: ...el mixture See your dealer detonates or pings under load If applicable switch to the recommended octane gasoline page 58 or change your brand of gasoline If the problem persists see your dealer afterfires backfires See your dealer pre ignition runs on after ignition switched OFF See your dealer 20YM CRF125FFB_31K28B60_FM book 134 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 145: ...sol tire sealer to seal the puncture and inflate the tube This can be done without removing the tire or wheel Use a tube patch kit to repair the puncture This requires removing the tire If the leak is more serious or a temporary repair doesn t hold the tube must be replaced The tire will also need to be replaced if it is damaged page 101 Replacing a tube or tire involves removing and re installing...

Page 146: ...rom damage caused by excess current flow short circuit or overload If something electrical on your motorcycle stops working the first thing you should check for is a blown fuse Check the fuses before looking elsewhere for another possible cause of the problem Replace any blown fuse and check component operation Riding your motorcycle with a temporary tire repair can be risky If the temporary repai...

Page 147: ...fuse 1 remove the seat page 56 3 Remove the starter magnetic switch 2 from the ribs 3 4 Disconnect the wire connector 4 of the starter magnetic switch 5 Pull the fuse out If the main fuse is blown 5 install the spare main fuse 6 6 Reconnect the wire connector 7 Install the starter magnetic switch 8 Install the seat main fuse 15 A sub fuse 5 A 3 1 4 5 1 main fuse 2 starter magnetic switch 3 ribs 4 ...

Page 148: ...with the spare fuse 10 11 Close the fuse case cover and install the left side cover If you do not have a replacement fuse with the proper rating for the circuit install one with a lower rating Replacing a f use with one that has a higher rating greatly increases the chance of damage to the electrical system 7 sub fuse 8 fuse case cover 8 9 blown fuse 10 spare fuse 7 10 9 20YM CRF125FFB_31K28B60_FM...

Page 149: ...still running turn it off and look it over carefully inspect it for fluid leaks check the tightness of critical nuts and bolts and secure such parts as the handlebar control levers brakes and wheels If there is minor damage or you are unsure about possible damage but decide to try riding the motorcycle back to your base ride slowly and cautiously Sometimes crash damage is hidden or not immediately...

Page 150: ...and aren t carrying a duplicate either get your spare or have one made If you don t know your key number call the dealer where you purchased your Honda They may have it listed in their records If they don t transport your motorcycle to them or the nearest dealer The dealer will probably have to remove the ignition switch assembly to find the key number so they can make a key for you If You Lose Yo...

Page 151: ...r link However if the chain breaks or does other damage when it comes off you may not be able to make a trailside repair If any component of the front brake system is damaged you may be able to ride carefully back to your base using the rear brake for slowing or stopping If the clutch lever breaks you may be able to temporarily switch the front brake lever to the clutch side then ride carefully ba...

Page 152: ...he greater amperage of an automobile battery when the car engine is running can damage your motorcycle s electrical system Bump starting is also not recommended If you can t charge the battery or it appears unable to hold a charge contact your dealer If Your Battery Is Low or Dead 20YM CRF125FFB_31K28B60_FM book 142 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 153: ...mittently while riding Even if this symptom occurs you can continue to ride your motorcycle If unstable engine operation occurs even if sufficient fuel is available have your motorcycle inspected by your dealer as soon as possible If Unstable Engine Operation Occurs Intermittently 20YM CRF125FFB_31K28B60_FM book 143 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 154: ...144 Taking Care of the Unexpected 20YM CRF125FFB_31K28B60_FM book 144 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 155: ...ies and other technical data plus information on government requirements and how to break in your motorcycle Vehicle Identification 146 Specifications 148 Break in Guidelines 153 Emission Control Systems 154 Oxygenated Fuels 158 20YM CRF125FFB_31K28B60_FM book 145 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 156: ...your motorcycle They may also be required when ordering replacement parts You may record these numbers in the Quick Reference section at the rear of the manual The VIN 1 is stamped on the left side of the steering head Serial Numbers 1 1 VIN RIGHT SIDE 20YM CRF125FFB_31K28B60_FM book 146 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 157: ...Technical Information 147 Vehicle Identification The engine number 2 is stamped on the left side of the engine LEFT SIDE 2 2 engine number 20YM CRF125FFB_31K28B60_FM book 147 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 158: ... height CRF125F 39 4 in 1 000 mm CRF125FB 42 1 in 1 070 mm Wheelbase CRF125F 48 0 in 1 220 mm CRF125FB 49 4 in 1 255 mm Fuel Lubricants Fuel tank capacity 0 98 US gal 3 7 Fuel recommendation unleaded gasoline pump octane number of 86 or higher Engine oil capacity after draining 0 9 US qt 0 85 after disassembly 1 1 US qt 1 0 20YM CRF125FFB_31K28B60_FM book 148 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 159: ...ivalent motorcycle oil Drive chain lubricant Recommended lubricant Pro Honda HP Chain Lube or an equivalent Fuel Lubricants Air cleaner oil Pro Honda USA only or Honda Foam Filter Oil or an equivalent Capacities Passenger capacity operator only no passenger Maximum weight capacity CRF125F 176 lb 80 kg CRF125FB 194 lb 88 kg Cargo capacity none Engine Specifications Displacement 7 6 cu in 125 cm3 Bo...

Page 160: ...rpm Power Transmission Primary reduction 3 250 Gear ratio 1st 3 181 2nd 1 705 3rd 1 238 4th 0 916 Final reduction CRF125F 3 538 CRF125FB 3 769 Final drive chain Power Transmission Drive chain freeplay 1 1 3 8 in 25 35 mm New chain length 20 0 in 508 mm distance between a span of 41 pins Used chain service limit length 20 4 in 518 mm distance between a span of 41 pins 20YM CRF125FFB_31K28B60_FM boo...

Page 161: ...00 14M C 49M CRF125FB 90 100 16M C 51M Chassis Suspension Tire type bias ply tube Tire pressure front cold 15 psi 100 kPa 1 0 kgf cm2 Tire pressure rear cold 15 psi 100 kPa 1 0 kgf cm2 Suspension front CRF125F 5 2 in 133 mm axle travel CRF125FB 5 9 in 151 mm axle travel Suspension rear CRF125F 5 5 in 140 mm axle travel CRF125FB 6 6 in 168 mm axle travel 20YM CRF125FFB_31K28B60_FM book 151 ページ２０１９...

Page 162: ...5 kW 5 000 rpm Fuse Main 15 A Sub 5 A Torque Specifications Oil drain bolt 18 lbf ft 24 N m 2 4 kgf m Spark arrester mount bolts 7 lbf ft 10 N m 1 0 kgf m Front axle nut 46 lbf ft 62 N m 6 3 kgf m Rear axle nut 46 lbf ft 62 N m 6 3 kgf m 20YM CRF125FFB_31K28B60_FM book 152 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 163: ...torcycle s future reliability and performance by paying extra attention to how you ride during the first operating day or 15 miles 25 km During this period avoid full throttle starts and rapid acceleration 20YM CRF125FFB_31K28B60_FM book 153 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 164: ...provided The Vehicle Emission Control Information Label 1 2 is attached to the rear fender Noise Emission Requirements The EPA also requires that motorcycles built after January 1 1983 comply with applicable noise emission standards for one year or 1 865 miles 3 000 km after the time of sale to the ultimate purchaser when operated and maintained according to the instructions provided USA only 2 1 ...

Page 165: ...on of the components is recommended The exhaust emission control system is separate from the crankcase emission control system Evaporative Emission Control System AC type only An evaporative emission control system uses pressure proof fuel tank and fuel fill cap which maintains inside of the fuel tank at a high pressure to keep fuel vapor in itself while the engine is off An add on or modified par...

Page 166: ...l prior to its sale or delivery to the ultimate purchaser or while it is in use or 2 the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE ACTS LISTED BELOW Removal of or puncturing the muffler baffles header pipes or any other component which conducts exhaust gases Removal of o...

Page 167: ...eface or destroy the emission control information label If you loan sell or give your competition modified motorcycle to someone else according to applicable law you must inform the new owner operator in writing that the vehicle is to be used for competition only Fuel Permeation Emission Control System This vehicle complies with the Fuel Permeation Emission Control regulations of the U S Environme...

Page 168: ... this information to be posted on the pump The following are the EPA approved percentages of oxygenates ETHANOL ethyl or grain alcohol up to 10 by volume You may use gasoline containing up to 10 ethanol by volume Gasoline containing ethanol may be marketed under the name Gasohol METHANOL methyl or wood alcohol up to 5 by volume You may use gasoline containing up to 5 methanol by volume as long as ...

Page 169: ...se of an oxygenated fuel containing more than the percentages of oxygenates mentioned above are not covered under warranty Oxygenated fuels can damage paint and plastic Be careful not to spill fuel when filling the fuel tank Wipe up any spills immediately Oxygenated fuels can damage paint and plastic Damage caused by spilled fuel is not covered under warranty 20YM CRF125FFB_31K28B60_FM book 159 ペー...

Page 170: ...160 Technical Information 20YM CRF125FFB_31K28B60_FM book 160 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 171: ...n contains information on your warranty and how to get an official Honda service manual Authorized Manuals 162 Warranty Coverage 164 Warranty Service 165 Contacting Honda 166 Your Honda Dealer 167 20YM CRF125FFB_31K28B60_FM book 161 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 172: ...in conjunction with the Owner s Manual and Service Manual can help you prepare your Honda motorcycle scooter ATV and SxS for winter storage These Honda manuals are written for the professional technician However if you possess the proper tools observe the safety standards and are mechanically capable you should find them easy to use Special Honda tools are necessary for some procedures Publication...

Page 173: ...63 Authorized Manuals Order online www helminc com Order Toll Free 1 888 CYCLE93 1 888 292 5393 NOTE For Credit Card Orders Only Monday Friday 8 00 AM 6 00 PM EST 20YM CRF125FFB_31K28B60_FM book 163 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 174: ...posted on our website at www honda ca It is important to realize that your warranty for your Honda applies to defects in material or factory workmanship Your warranty coverage does not apply to normal wear or deterioration associated with using the motorcycle Your warranty coverage will not be voided if you choose to perform your own maintenance However you should have the proper tools and service...

Page 175: ...inspection If the problem is covered under warranty your dealer will perform the warranty repairs for you If you have questions about warranty coverage or the nature of the repair it is best to talk to the Service Manager of your dealer Sometimes in spite of the best intentions of all concerned a misunderstanding may occur If you aren t satisfied with your dealer s handling of the situation we sug...

Page 176: ...t on your experiences with your Honda or with your dealer please send your comments to the following address USA Motorcycle Division American Honda Motor Co Inc P O Box 2200 Torrance CA 90509 2200 mailstop 100 4C 7B telephone 866 784 1870 Canada Honda Canada Inc Customer Relations Dept 180 Honda Boulevard Markham Ontario L6C 0H9 telephone 888 946 6329 facsimile 877 939 0909 E mail honda_cr ch hond...

Page 177: ...ts Canada only The same quality that went into your Honda can be found in Honda Genuine replacement parts You ll also find comparable quality in the accessories and products available from the parts department The sales department offers the Honda Protection Plan to extend almost all of your warranty coverage USA only Your dealer can inform you about competition and other riding events in your are...

Page 178: ...ver front 18 lever front adjustment 84 pad wear 87 pedal rear 19 shoe wear 90 braking 36 break in guidelines 153 capacity fuel 59 cleaner air 67 cleaning appearance care 115 clutch system adjustment 74 lever 19 consumer information 161 controls operating 13 cover removal left side 57 crankcase breather 71 customer service 166 drive chain 103 A B C D Index 20YM CRF125FFB_31K28B60_FM book 168 ページ２０...

Page 179: ...arting 31 stop switch 18 stopping 33 won t start 131 environment protecting 126 flat tire 135 flooded engine starting 33 fork 81 front brake lever 18 lever freeplay 84 front suspension 81 front wheel removal 94 fuel reserve indicator 21 fuel oxygenated 158 recommendation 58 tank capacity 59 fuse 136 E F 20YM CRF125FFB_31K28B60_FM book 169 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 180: ...162 Honda contacting 166 ignition indicator 21 ignition switch 17 inspection post ride 39 pre ride 26 key lost 140 kickstarter 19 left side cover removal 57 lever clutch 19 front brake 18 shift 19 limit weight 9 loading 8 G H I K L Index 20YM CRF125FFB_31K28B60_FM book 170 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 181: ...cations 14 oxygenated fuels 158 parking 38 pedal rear brake 19 pgm fi malfunction indicator lamp MIL 20 pinging engine 58 plug spark 77 post ride inspection 39 pre ride inspection 26 rear wheel removal 96 rider training 3 167 riding basic operation 29 before 23 clothing 24 precautions 30 safety 2 rim lock 93 M O P R 20YM CRF125FFB_31K28B60_FM book 171 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 182: ...ecifications 148 stand side 20 102 start button 18 starting engine 31 stop switch engine 18 stopping engine 33 storage 124 suspension front 81 rear 82 throttle freeplay 72 operation 18 tires air pressure 98 flat 135 replacing 101 tools 55 towing 35 training rider 3 167 transporting 122 troubleshooting starting 131 S T Index 20YM CRF125FFB_31K28B60_FM book 172 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 183: ...73 Index vehicle identification no VIN 146 warranty coverage 164 extended 164 service 165 washing your motorcycle 116 weight limit 9 wheels 92 V W 20YM CRF125FFB_31K28B60_FM book 173 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 184: ...174 Memo 20YM CRF125FFB_31K28B60_FM book 174 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 185: ...Memo 175 20YM CRF125FFB_31K28B60_FM book 175 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 186: ...176 Memo 20YM CRF125FFB_31K28B60_FM book 176 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 187: ...quent causes of costly engine repairs are Engine oil insufficient quantity improper oil Air cleaner dirty cleaned but not oiled leaking because of improper installation poor seal Frequent causes of costly chassis repair are Chain A loosely adjusted chain or a chain stretched because of lack of lubrication may come off and damage an engine case or wheel hub Spokes Loose spoke may break and damage t...

Page 188: ...e Quick Reference Record important information here VIN Engine No Owner s Name Address City State Phone Dealer s Name Address City State Phone Service Mgr 20YM CRF125FFB_31K28B60_FM book 178 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 189: ...pt oils labeled as energy conserving or resource conserving on the circular API service label SAE 10W 30 JASO T 903 standard MA Pro Honda GN4 4 stroke oil USA Canada or Honda 4 stroke oil or an equivalent motorcycle oil after draining 0 9 US qt 0 85 Maximum Weight Capacity CRF125F 176 lb 80 kg CRF125FB 194 lb 88 kg rider only no passenger or cargo and any accessories Tires Front CRF125F 70 100 17M...

Page 190: ...MBOL COMPONENT SEE PAGE ON ignition switch 17 OFF ignition switch 17 START button 18 RUN engine stop switch 18 STOP engine stop switch 18 PGM FI malfunction indicator lamp MIL 20 fuel reserve indicator 21 Ignition indicator 21 20YM CRF125FFB_31K28B60_FM book 180 ページ２０１９年３月１日金曜日午後１時４８分 ...

Page 191: ...own to the State of California to cause cancer and birth defects or other reproductive harm To minimize exposure avoid breathing exhaust do not idle the engine except as necessary service your vehicle in a well ventilated area and wear gloves or wash your hands frequently when servicing your vehicle For more information go to www P65Warnings ca gov passenger vehicle 20YM CRF125FFB_31K28B60_FM book...

Page 192: ...cation of evaporative emission related parts on this OHRV is illegal Violators may be subject to civil and or criminal penalties as provided under California and federal law Black Pantone 3415C CRF125F FB 2020 2020 PRINTED IN XXXX XXXX 2019 XX L 00X31 K28 B600 31K28B60 EN ...

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