2014-2015 Honda CRF125F, CRF125FB OEM Service & Repair Manual

How to use this manual A Few Words About Safety Service Information The seNice and repa.r ,nformation contained In thiS manual is Intended for use by qualified. professIOnal technicians Attempting serviCe or repairs Without the proper training. tools. and equipment could cause Injury to you or others It could also damage the vehide or create an unsafe condition. ThiS manual describes the proper methods and procedures for performing serviCe, maintenance and repairs. Some procedures reqUire the use of specially designed tools and dedicated eqUipment. Any person who intends to use a replacement part service procedure or a tool that Is nOl recommended by Honda. must determine the risks to their personal safety and the safe operation of the vehicle If you need to replace a part. use Honda GenUine parts With the corfect part number or an equivalent part. We strongly recommend that you do not use replacement parts of inferior quality. For Your Customer's Safety Proper service and maintenance are essent.al to the customer's safety and the reliability of the vehide Any error or oversight while servIcing a vehicle can result In faulty operatIOn damage 10 Ihe vehicle. or Injury to others For Your Safety AWARNING Improper seNke or repaIrs can create an unsafe condition that can cause your customer or others to be seriously hurt or klned Follow the procedures and precautions In thiS manual and other seNice malenals carefully. Because ttus manual IS intended for the professional service technician we do not provide warnings about many basic shop salery praCtices (e g Hot parts-wear gloves) If you have not received shop safety training or do not feel confident about your knowledge of safe servicing practice we recommended that you do not attempt to perform the procedures desCtibed In thiS manual Some of the most Important general service safety precautions a re gi .... en below. However, we cannot wam you of every conceivable hazard thai can arise in performing service and repair procedures Only you can decide whether or not you should perform a given lask AWARNING Fa~ure to property follow instructions and precautions can cause you to be senously hun or killed. Follow the procedures and precautions In thiS manual carefully. Important Safety Precautions Make sure you ha .... e a clear understanding of a ll baSIC shop safety practices and that you are wearing appropl'1ate clothing and us.ng safety equipment When performing any servICe task, be especially careful of the fotlowlng: Read all of the inslruC\JOns before you begin. and make sure you have the lools, the replacement or repair par1s. and the sklHs reqUifed to perform the tasks safely and completely. Protect your eyes by USing proper safety glasses. goggles or face shields any time you hammer. dnll. gnnd. pry or work around pressurized air or liqUids, and SpflngS or other stored-energy components. If there IS any doubt. put on eye protection. Use other protective wear when necessary for example gloves or safety shoes Handling hot or sharp parts can cause severe bums or cuts. Before you grab something thai looks like it can hurt you. slop and put on gloves Protect yourself and others whene .... er you have the vehICle up in the a.r. Any bme you lift the vehide. either With a hOist or a lack, make sure that It IS always securely supported. Use jack stands Make sure the eng.ne is off before you begin any servicing procedures, unless the instruction tells you to do otherwise ThIs witl help eliminate several potential hazards: Carbon monoxide poisoning from engine exhaust. Be sure there IS adequate ventilation whenever you run the engine Bums from hOt pans or coolant let the engine and exhaust system cool before working in those areas InjUry from moVNlg parts If me InstructIOn telts you to run the engine be sure your hands fingers and clothing are out of the way Gasolll"le vapors and hydrogen gases from batterl8S are explosive To reduce the poSSibility of a fire or explOSion, be careful when working around gasoline or batteries Use only a nonflammable solvent. not gasoline. to clean parts. Never dram or store gasoline in an open conlainer Keep all cigarettes, sparks and flames away from the battery and all fuel-felated pans .

How to use this manual How To Use This Manual This manual describes the service procedures for the CRFI2SF/FB-E. Sections 1 and 3 apply to the whole vehicle. Section 2 illustrates procedures for removalfinstal1atlon of components thai may be required to perform service described in the following sections. Sectioo 4 through 18 describe pans of the motorcycle, grouped according to location. Follow the Maintenance Schedule recommendations to ensure that the vehicle is In peak operating condition. Performing the first scheduled maintenance Is very important. II compensates fO( the initial wear that occurs during the break-in period. Find the section you want on this page , then tum to the table of contents on the first page of the section. Most sections start with an assembly or system illustration, service Information and troubleshooting for the section. The subsequent pages give detailed procedure. Refer to the troubleshooting in each sed ion according to the malfunction or symptom. Your safety, and the safety of others, is very important. To help you make info rmed decisions we have provided safety messages and other information throughout this manual. Of course, it is not practical or possible to warn you about all the hazards assodated with servicing this vehicle. You must use your own good judgement. You will rind important safety information in a vanety of forms Including· Safety Labels - on the vehlde • Safety Messages - preceded by a safety alert symbol ! and one of three signal words, DANGER, WARNING, or CAUTION. These signal words mean: tH.tPIfl3;' You WILL be KILLED or SERIOUSLY HURT If you don't follow Instructions. You CAN be HURT if you don't follow Instructions. ~structions - how to service thiS vehicle correctly and safely. As you read this manual, you will find information that Is preceded by a D«rI'ItU symbol. The purpose of this message is 10 help pr6"lenl damage to your vehicle, other property, ()( the environment.

How to use this manual SYMBOLS The symbols used throughout this manual show specific service procedures. If supplementary information is required pertaining to these symbols, it would be explained specifically in the texl without the use of the symbols. Replace the part(s) with new ona(s) before assembly. Use the recommended engine oit. unless otherwise specified. L __ 78 _____ +-_ u_s_e_mO,YbdenUm oil solution (mixture of the engine oil an d molybdenum grease in a ratio of 1:1). I I Use multi-purpose grease (lithium based multi-purpose grease NLGI #2 Of equivalent). I1 se molybdenum disulfide grease (containing more than 3% molybdenum disulfide, NlGI #2 or equivalent). Example: • Motykole® BR-2 plus manufactured by Dow Corning U.S.A. • Multi-purpose M-2 manufactur/KI by Mitsubishl Oil , Ja~ +Use molybdenum disulfide paste (containing more than 40% molybdenum disulfide, NlGI #2 or equivalent), Example: Molykote® G·n Paste manufactured by Dow Coming U.S.A. Honda Moly 60 (U.S.A. ooly) Rocol ASP manufadured by Rocollimited , U.K. Rocol Paste manufactured by Sumico lubricant. ~Ja~p~a~n,-______ _ Use silicone grease. Apply locking agent. Use a medium strength locking agent unless otherwise specified. Apply sealant. Use DOT 4 brake fluid. Use the recommended brake fluid unless otherwise specified. Use fork or suspension fluid. 1 , • • • 1 j

CONTENTS GENERAL INFORMATION FRAME/BODY PANELS/EXHAUST SYSTEM MAINTENANCE IGNITION SYSTEM ~ F== EL ~E ~ C ~ T ~ R ~ I= C~ S = T ~ A= R= TE =R ~========================= ~ ~~~~~========================== t; FUEL SYSTEM w f========================================= ...J LUBRICATION SYSTEM ~ F=================== ====================== - CYLINDER HEADNALVES ~ ~~~~================================ .... CYLINDER/PISTON ~ F=~==~~==~~~~==~================== - CLUTCH/GEARSHIFT LINKAGE ~ F=~~~~~====~==~~~~~==~~~= iii ALTERNATOR/STARTER CLUTCH/CAM CHAIN TENSIONER ~ F== C= R= A~ N~ K= S~ HA == FT ~ ~ =R =A ~ NS =M ~ IS ~ S ~ IO ~N ~ / ~ K~ IC ~ K ~ S ~ T ~ A = R ~ T= E= R========= ffi F=====================~================== ENGINE REMOVAL/INSTALLATION II) FRONT WHEEL/SUSPENSION/STEERING ~ ~~~~~~~~~~~============== II) REAR WHEEL/BRAKE/SUSPENSION ~ F=====~======~========================== U HYDRAULIC BRAKE w BATTERY/CHARGING SYSTEM ~ ~ F========================================= ~ WIRING DIAGRAM INDEX

MEMO , ,

SERVICE RULES · · ·· ······························· 1-2 MODEL IDENTIFICATION . ... ... ... .... • ........ 1-2 SPECiFiCATIONS····· .. .. ......... ..... ...•. ... ... 1-4 TORQUE VALUES ································· 1-9 1. GENERAL INFORMATION LUBRICATION & SEAL POINTS ............ 1-13 CABLE & HARNESS ROUTING ······ ·· ···· ·1- 15 EMISSION CONTROL SYSTEMS ·· ····· ···· 1-19 1-1

GENERAL INFORMATION SERVICE RULES 1. Use Honda genuine or Honda-recommended parts and lubricants or their equivalents. Parts that don't meel Honda's design speCifications may cause damage to the motorcycle. 2. Use the special tools designed for this product to avoid damage and incorrect assembly. 3. Use only metric tools when servicing the motorcycle. Metric bolts, nuts and screws are not interchangeable with English fasteners . 4. Install new gaskets, O-rings. cotter pins, and lock plates when reassembling. 5. When lightening bolts or nuts, begin with the larger diameter or inner bolt first. Then lighten to the specified torque diagonally in incremental steps unless a particular sequence is specified. 6. Clean parts in cleaning solvent upon disassembly. lubricate any sliding surfaces before reassembly. 7. After reassembly, check all parts for proper Installation and operation. 8. Route all electrical wires as shown in the Cable and Hamess Routing (page 1-15). ABBREVIATION Throughout this manual. the following abbreviations are used to identify the respective parts or systems. Abbrev. term Full term leM Ignition Control Module MODEL IDENTIFICATION CRF125F shown: SERIAL NUMBERS The Vehicle Identification Number (V.I.N) [1] is stamped on the right side of the steering head. 1·2 1 , ,

GENERAL INFORMATION The engine serial number [1] is stamped on the lower left side of the crankcase. [1 [ The carburetor IdentJficatlon number (lJ is stamped on the right side of the r:;.;;;;;;;;;;;;;:,-....;;;;;;::;;::o_;;;;;=--~ carburetor body as shown. LABELS The name plale 11) (Canada: safety certification label) is attached on the steering head . The Emission Control Information label (lJ is attached as shown . l [11 ~ /~' / (1) (Canada only) j 1-3

GENERAL INFORMATION SPECIFICATIONS GENERAL SPECIFICATIONS DIMENSIONS 1-4 Overall width I Wheelbas~ Seat height r mnl Rear lire size r Valve Intak " e :'C ,c.;;al;;;,e ;-~ Exhaust I Throttle bore • j ~ 1 i 1 1 4 ; I -, CRF125FB: j ~ --+--7.;,; ," .. IV9, chain driven OHC with rocker arm

2014-2015 Honda CRF125F, CRF125FB OEM Service & Repair Manual

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