Tài liệu về kỹ thuật sữa chữa xe phân khối lớn Yamaha SR400 đời 2015. Các đời xe cũ hơn cũng có thể tham khảo. Phiên bản 2015 trở đi, SR400 được nâng cấp với phanh đĩa đơn bánh trước, hệ thống phun xăng điện tử cho động cơ 399 phân khối và được bán sang thị trường Mỹ. Tuy nhiên, xe không có nút khởi động điện mà phải khởi động bằng cần đạp truyền thống, đây cũng là nét đặc trưng “chất” riêng của SR400.
2015 SERVICE MANUAL SR400F SR400FC LIT-11616-28-01 2RD-28197-10 EAS20050 SR400F SR400FC SERVICE MANUAL ©2014 by Yamaha Motor Corporation, U.S.A First edition, March 2014 All rights reserved Any reproduction or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A is expressly prohibited Printed in U.S.A P/N LIT-11616-28-01 EAS20071 IMPORTANT This manual was produced by the Yamaha Motor Company, Ltd primarily for use by Yamaha dealers and their qualified mechanics It is not possible to include all the knowledge of a mechanic in one manual Therefore, anyone who uses this book to perform maintenance and repairs on Yamaha vehicles should have a basic understanding of mechanics and the techniques to repair these types of vehicles Repair and maintenance work attempted by anyone without this knowledge is likely to render the vehicle unsafe and unfit for use This model has been designed and manufactured to perform within certain specifications in regard to performance and emissions Proper service with the correct tools is necessary to ensure that the vehicle will operate as designed If there is any question about a service procedure, it is imperative that you contact a Yamaha dealer for any service information changes that apply to this model This policy is intended to provide the customer with the most satisfaction from his vehicle and to conform to federal environmental quality objectives Yamaha Motor Company, Ltd is continually striving to improve all of its models Modifications and significant changes in specifications or procedures will be forwarded to all authorized Yamaha dealers and will appear in future editions of this manual where applicable TIP • This Service Manual contains information regarding periodic maintenance to the emission control system Please read this material carefully • Designs and specifications are subject to change without notice EAS20081 IMPORTANT MANUAL INFORMATION Particularly important information is distinguished in this manual by the following notations This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death WARNING A WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury NOTICE A NOTICE indicates special precautions that must be taken to avoid damage to the vehicle or other property TIP A TIP provides key information to make procedures easier or clearer EAS20091 HOW TO USE THIS MANUAL This manual is intended as a handy, easy-to-read reference book for the mechanic Comprehensive explanations of all installation, removal, disassembly, assembly, repair and check procedures are laid out with the individual steps in sequential order • The manual is divided into chapters and each chapter is divided into sections The current section title “1” is shown at the top of each page • Sub-section titles “2” appear in smaller print than the section title • To help identify parts and clarify procedure steps, there are exploded diagrams “3” at the start of each removal and disassembly section • Numbers “4” are given in the order of the jobs in the exploded diagram A number indicates a disassembly step • Symbols “5” indicate parts to be lubricated or replaced Refer to “SYMBOLS” • A job instruction chart “6” accompanies the exploded diagram, providing the order of jobs, names of parts, notes in jobs, etc This step explains removal and disassembly procedure only For installation and assembly procedure, reverse the steps • Jobs “7” requiring more information (such as special tools and technical data) are described sequentially EAS20101 SYMBOLS The following symbols are used in this manual for easier understanding TIP The following symbols are not relevant to every vehicle SYMBOL DEFINITION SYMBOL Serviceable with engine mounted DEFINITION Gear oil G Filling fluid Molybdenum disulfide oil M Lubricant Brake fluid BF B Wheel bearing grease Tightening torque LS Lithium-soap-based grease Wear limit, clearance M Molybdenum disulfide grease Engine speed S Silicone grease Electrical data F YAMAHA GREASE “F” T Special tool R Engine oil E Silicone fluid S LT New Apply locking agent (LOCTITE®) Replace the part with a new one EAS20110 TABLE OF CONTENTS GENERAL INFORMATION SPECIFICATIONS PERIODIC CHECKS AND ADJUSTMENTS CHASSIS ENGINE FUEL SYSTEM ELECTRICAL SYSTEM TROUBLESHOOTING GENERAL INFORMATION IDENTIFICATION 1-1 VEHICLE IDENTIFICATION NUMBER 1-1 MODEL LABEL 1-1 FEATURES .1-2 OUTLINE OF THE FI SYSTEM 1-2 FI SYSTEM 1-3 FUEL LINE CHART 1-4 IMPORTANT INFORMATION 1-5 PREPARATION FOR REMOVAL AND DISASSEMBLY 1-5 REPLACEMENT PARTS 1-5 GASKETS, OIL SEALS AND O-RINGS .1-5 LOCK WASHERS/PLATES AND COTTER PINS 1-5 BEARINGS AND OIL SEALS .1-5 CIRCLIPS 1-6 RUBBER PARTS 1-6 BASIC SERVICE INFORMATION 1-7 QUICK FASTENERS 1-7 ELECTRICAL SYSTEM 1-7 SPECIAL TOOLS 1-12 IDENTIFICATION EAS20130 IDENTIFICATION EAS20140 VEHICLE IDENTIFICATION NUMBER The vehicle identification number “1” is stamped into the right side of the steering head pipe EAS20150 MODEL LABEL The model label “1” is affixed to the frame under the rider seat This information will be needed to order spare parts 1-1 ELECTRICAL COMPONENTS 2 1 b Check the throttle position sensor maximum resistance c Measure the air induction system solenoid resistance ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲ ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲ Install: • Throttle position sensor TIP When installing the throttle position sensor, adjust its angle properly Refer to “ADJUSTING THE THROTTLE POSITION SENSOR” on page 6-13 EAS28411 CHECKING THE INTAKE AIR PRESSURE SENSOR Check: • Intake air pressure sensor output voltage Out of specification Replace Intake air pressure sensor output voltage 1.20–4.20 V EAS28371 CHECKING THE AIR INDUCTION SYSTEM SOLENOID Check: • Air induction system solenoid resistance Out of specification Replace ▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼ a Connect the test harness S– pressure sensor (3P) “1” to the intake air pressure sensor “2” and wire harness “3” b Connect the digital circuit tester (DCV) to the test harness S– pressure sensor (3P) Air induction system Solenoid resistance 20–24 Digital circuit tester 90890-03174 Model 88 Multimeter with tachometer YU-A1927 Test harness S– pressure sensor 5S7 (3P) 90890-03211 Test harness S– pressure sensor 5S7 (3P) YU-03211 ▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼ a Remove the air induction system solenoid coupler from the air induction system solenoid b Connect the pocket tester ( 10) to the air induction system solenoid terminals as shown Pocket tester 90890-03112 Analog pocket tester YU-03112-C • Positive tester probe pink/white (wire harness color) • Negative tester probe black/blue (wire harness color) • Positive tester probe red/white “1” • Negative tester probe brown/red “2” 7-69 ELECTRICAL COMPONENTS 1 B/L P L L P/W B/L c Turn the main switch to “ON” d Measure the intake air pressure sensor output voltage d Slowly heat the water, then let it cool down to the specified temperature e Measure the intake air temperature sensor resistance ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲ ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲ EAS28421 Install: • Intake air temperature sensor Refer to “GENERAL CHASSIS” on page 4-1 T CHECKING THE INTAKE AIR TEMPERATURE SENSOR Remove: • Intake air temperature sensor (from the air filter case.) Refer to “GENERAL CHASSIS” on page 4-1 R Intake air temperature sensor screw 2.5 Nm (0.25 m·kgf, 1.8 ft·lbf) EWA14110 WARNING EAS2RD1042 • Handle the intake air temperature sensor with special care • Never subject the intake air temperature sensor to strong shocks If the intake air temperature sensor is dropped, replace it CHECKING THE FUEL INJECTOR Remove: • Fuel injector Refer to “THROTTLE BODY” on page 6-10 Check: • Fuel injector resistance Out of specification Replace the fuel injector Check: • Intake air temperature sensor resistance Out of specification Replace Resistance 12.0 Intake air temperature sensor resistance 290–390 @80 C (290–390 @176 F) ▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼ a Disconnect the fuel injector coupler from the fuel injector b Connect the pocket tester ( 10) to the fuel injector coupler as shown ▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼ a Connect the pocket tester ( 100) to the intake air temperature sensor terminal as shown Pocket tester 90890-03112 Analog pocket tester YU-03112-C Pocket tester 90890-03112 Analog pocket tester YU-03112-C • Positive tester probe Injector terminal “1” • Negative tester probe Injector terminal “2” b Immerse the intake air temperature sensor “1” in a container filled with water “2” TIP Make sure that the intake air temperature sensor terminals not get wet c Place a thermometer “3” in the water 7-70 ELECTRICAL COMPONENTS c Measure the fuel injector resistance ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲ 7-71 TROUBLESHOOTING TROUBLESHOOTING 8-1 GENERAL INFORMATION 8-1 STARTING FAILURES .8-1 INCORRECT ENGINE IDLING SPEED .8-1 POOR MEDIUM-AND-HIGH-SPEED PERFORMANCE 8-2 FAULTY GEAR SHIFTING 8-2 SHIFT PEDAL DOES NOT MOVE .8-2 JUMPS OUT OF GEAR 8-2 FAULTY CLUTCH 8-2 OVERHEATING 8-2 POOR BRAKING PERFORMANCE 8-3 FAULTY FRONT FORK LEGS 8-3 UNSTABLE HANDLING .8-3 FAULTY LIGHTING OR SIGNALING SYSTEM 8-3 TROUBLESHOOTING Electrical system Battery • Discharged battery • Faulty battery Fuse(s) • Blown, damaged or incorrect fuse • Improperly installed fuse Spark plug • Incorrect spark plug gap • Incorrect spark plug heat range • Fouled spark plug • Worn or damaged electrode • Worn or damaged insulator • Faulty spark plug cap Ignition coil(s) • Cracked or broken ignition coil body • Broken or shorted primary or secondary coils • Faulty spark plug lead Ignition system • Faulty ECU • Faulty crankshaft position sensor • Broken generator rotor woodruff key Switches and wiring • Faulty main switch • Faulty engine stop switch • Broken or shorted wiring • Faulty neutral switch • Faulty sidestand switch • Faulty clutch switch • Improperly grounded circuit • Loose connections EAS28451 TROUBLESHOOTING EAS28460 GENERAL INFORMATION TIP The following guide for troubleshooting does not cover all the possible causes of trouble It should be helpful, however, as a guide to basic troubleshooting Refer to the relative procedure in this manual for checks, adjustments, and replacement of parts EAS30410 STARTING FAILURES Engine Cylinder(s) and cylinder head(s) • Loose spark plug • Loose cylinder head or cylinder • Damaged cylinder head gasket • Damaged cylinder gasket • Worn or damaged cylinder • Incorrect valve clearance • Improperly sealed valve • Incorrect valve-to-valve-seat contact • Incorrect valve timing • Faulty valve spring • Seized valve Piston(s) and piston ring(s) • Improperly installed piston ring • Damaged, worn or fatigued piston ring • Seized piston ring • Seized or damaged piston Air filter • Improperly installed air filter • Clogged air filter element Crankcase and crankshaft • Improperly assembled crankcase • Seized crankshaft Fuel system Fuel tank • Empty fuel tank • Clogged fuel filter • Clogged fuel tank cap breather hole • Clogged rollover valve • Clogged rollover valve hose • Deteriorated or contaminated fuel • Clogged or damaged fuel hose Fuel pump • Faulty fuel pump • Faulty fuel pump relay Throttle body(-ies) • Deteriorated or contaminated fuel • Sucked-in air EAS30430 INCORRECT ENGINE IDLING SPEED Engine Cylinder(s) and cylinder head(s) • Incorrect valve clearance • Damaged valve train components Air filter • Clogged air filter element Fuel system Throttle body(-ies) • Damaged or loose throttle body joint • Improper throttle grip free play • Flooded throttle body • Faulty air induction system Electrical system Battery • Discharged battery • Faulty battery Spark plug • Incorrect spark plug gap • Incorrect spark plug heat range • Fouled spark plug 8-1 TROUBLESHOOTING • Worn or damaged electrode • Worn or damaged insulator • Faulty spark plug cap Ignition coil(s) • Broken or shorted primary or secondary coils • Faulty spark plug lead • Cracked or broken ignition coil Ignition system • Faulty ECU • Faulty crankshaft position sensor • Broken generator rotor woodruff key Transmission • Worn gear dog EAS28560 FAULTY CLUTCH Clutch slips Clutch • Improperly assembled clutch • Improperly adjusted clutch cable • Loose or fatigued clutch spring • Worn friction plate • Worn clutch plate Engine oil • Incorrect oil level • Incorrect oil viscosity (low) • Deteriorated oil Clutch drags Clutch • Unevenly tensioned clutch springs • Warped pressure plate • Bent clutch plate • Swollen friction plate • Bent clutch push rod • Broken clutch boss • Burnt primary driven gear bushing • Match marks not aligned Engine oil • Incorrect oil level • Incorrect oil viscosity (high) • Deteriorated oil EAS30460 POOR MEDIUM-AND-HIGH-SPEED PERFORMANCE Refer to “STARTING FAILURES” on page 8-1 Engine Air filter • Clogged air filter element Air intake system • Clogged or leaking air duct Fuel system Throttle body(-ies) • Faulty throttle body Fuel pump • Faulty fuel pump EAS28530 FAULTY GEAR SHIFTING Shifting is difficult Refer to “Clutch drags” EAS30470 EAS28540 OVERHEATING Engine Cylinder head(s) and piston(s) • Heavy carbon buildup Engine oil • Incorrect oil level • Incorrect oil viscosity • Inferior oil quality Fuel system Throttle body(-ies) • Damaged or loose throttle body joint Air filter • Clogged air filter element Chassis Brake(s) • Dragging brake Electrical system Spark plug • Incorrect spark plug gap • Incorrect spark plug heat range Ignition system • Faulty ECU SHIFT PEDAL DOES NOT MOVE Shift shaft • Improperly adjusted shift rod • Bent shift shaft Shift drum and shift forks • Foreign object in a shift drum groove • Seized shift fork • Bent shift fork guide bar Transmission • Seized transmission gear • Foreign object between transmission gears • Improperly assembled transmission EAS28550 JUMPS OUT OF GEAR Shift shaft • Incorrect shift pedal position • Improperly returned stopper lever Shift forks • Worn shift fork Shift drum • Incorrect axial play • Worn shift drum groove 8-2 TROUBLESHOOTING (improperly tightened ring nut) • Bent steering stem • Damaged ball bearing or bearing race Front fork leg(s) • Uneven oil levels (both front fork legs) • Unevenly tensioned fork spring (both front fork legs) • Broken fork spring • Bent or damaged inner tube • Bent or damaged outer tube Swingarm • Worn bearing or bushing • Bent or damaged swingarm Rear shock absorber assembly(-ies) • Faulty rear shock absorber spring • Leaking oil Tire(s) • Uneven tire pressures (front and rear) • Incorrect tire pressure • Uneven tire wear Wheel(s) • Incorrect wheel balance • Broken or loose spoke • Damaged wheel bearing • Bent or loose wheel axle • Excessive wheel runout Frame • Bent frame • Damaged steering head pipe • Improperly installed bearing race EAS28640 POOR BRAKING PERFORMANCE Disc brake • Worn brake pad • Worn brake disc • Air in hydraulic brake system • Leaking brake fluid • Faulty brake caliper kit • Faulty brake caliper seal • Loose union bolt • Damaged brake hose • Oil or grease on the brake disc • Oil or grease on the brake pad • Incorrect brake fluid level Drum brake • Worn brake shoe • Worn or rusty brake drum • Incorrect brake pedal position (above the top of the rider footrest) • Incorrect brake pedal free play • Incorrect brake camshaft lever position • Incorrect brake shoe position • Damaged or fatigued brake shoe spring • Oil or grease on the brake shoe • Oil or grease on the brake drum • Broken brake torque rod EAS28660 FAULTY FRONT FORK LEGS Leaking oil • Bent, damaged or rusty inner tube • Cracked or damaged outer tube • Improperly installed oil seal • Damaged oil seal lip • Incorrect oil level (high) • Loose damper rod assembly bolt • Damaged damper rod assembly bolt copper washer • Cracked or damaged cap bolt O-ring Malfunction • Bent or damaged inner tube • Bent or damaged outer tube • Damaged fork spring • Worn or damaged outer tube bushing • Bent or damaged damper rod • Incorrect oil viscosity • Incorrect oil level EAS28710 FAULTY LIGHTING OR SIGNALING SYSTEM Headlight does not come on • Wrong headlight bulb • Too many electrical accessories • Hard charging • Incorrect connection • Improperly grounded circuit • Poor contacts (main or dimmer switch) • Burnt-out headlight bulb Headlight bulb burnt out • Wrong headlight bulb • Faulty battery • Faulty rectifier/regulator • Improperly grounded circuit • Faulty main switch • Faulty dimmer switch • Headlight bulb life expired The tail/brake light does not come on • Wrong tail/brake light bulb • Too many electrical accessories • Incorrect connection • Improperly grounded circuit EAS28690 UNSTABLE HANDLING Handlebar • Bent or improperly installed handlebar Steering head components • Improperly installed upper bracket • Improperly installed lower bracket 8-3 TROUBLESHOOTING • Poor contacts (main or rear brake light switch) • Burnt-out tail/brake light bulb Burnt-out tail/brake light bulb • Wrong tail/brake light bulb • Faulty battery • Faulty rectifier/regulator • Improperly grounded circuit • Faulty main switch • Incorrectly adjusted rear brake light switch • Tail/brake light bulb life expired Turn signal does not come on • Faulty turn signal switch • Faulty turn signal relay • Burnt-out turn signal bulb • Incorrect connection • Disconnected or damaged wire harness • Improperly grounded circuit • Faulty battery • Blown, damaged or incorrect fuse Turn signal blinks slowly • Faulty turn signal relay • Faulty main switch • Faulty turn signal switch • Incorrect turn signal bulb Turn signal blinks quickly • Incorrect turn signal bulb • Faulty turn signal relay • Burnt-out turn signal bulb Horn does not sound • Damaged or faulty horn • Faulty main switch • Faulty horn switch • Faulty battery • Blown, damaged or incorrect fuse • Faulty wire harness 8-4 TROUBLESHOOTING 8-5 EAS28740 WIRING DIAGRAM SR400F/SR400FC 2015 Crankshaft position sensor Neutral switch AC magneto Rectifier/regulator Battery Main fuse Main switch Backup fuse Fuel injection system fuse 10 Ignition fuse 11 Signaling system fuse 12 Headlight fuse 13 Right handlebar switch 14 Engine stop switch 15 Fuel pump relay 16 Diode 17 Sidestand switch 18 Clutch switch 19 Diode 20 Fuel pump 21 O2 sensor 22 ECU (engine control unit) 23 Ignition coil 24 Spark plug 25 Fuel injector 26 ISC (idle speed control) valve 27 FI diagnostic tool (OPTION) 28 Lean angle sensor 29 Throttle position sensor 30 Intake air pressure sensor 31 Intake air temperature sensor 32 Engine temperature sensor 33 Joint coupler 34 Frame ground 35 Fuel sender 36 Air induction system solenoid 37 Speedometer 38 Engine trouble warning light 39 Speed sensor 40 Meter light 41 Fuel level warning light 42 Tachometer 43 Neutral indicator light 44 Turn signal indicator light 45 High beam indicator light 46 Front brake light switch 47 Rear brake light switch 48 Turn signal relay 49 Horn 50 Headlight relay (on/off) 51 Left handlebar switch 52 Pass switch 53 Dimmer switch 54 Horn switch 55 Turn signal switch 56 Tail/brake light 57 Rear right turn signal light 58 Rear left turn signal light 59 Front right turn signal/position light 60 Front left turn signal/position light 61 Headlight EAS28750 COLOR CODE B Br Ch Dg G Gy L O P R Sb W Y B/L B/R B/W B/Y Br/L Br/R Br/W Br/Y G/W G/Y Gy/G L/B L/R L/Y O/B P/B P/W R/B R/G R/L R/W R/Y W/G Y/B Y/G Y/L Y/R Black Brown Chocolate Dark green Green Gray Blue Orange Pink Red Sky blue White Yellow Black/Blue Black/Red Black/White Black/Yellow Brown/Blue Brown/Red Brown/White Brown/Yellow Green/White Green/Yellow Gray/Green Blue/Black Blue/Red Blue/Yellow Orange/Black Pink/Black Pink/White Red/Black Red/Green Red/Blue Red/White Red/Yellow White/Green Yellow/Black Yellow/Green Yellow/Blue Yellow/Red SR400F/SR400FC 2015 WIRING DIAGRAM R/G P P/B G/Y Y/L Y/G Gy/G W Gy B/W L Br/R R/W G O W/G Br/L B/Y R/L L/B Br Br/W P/W Y B/L L/Y Y/B R/B O/B B (B) Gy L/B B/Y L/Y R/L P/B Gy/G R/L B/Y R/L B/R B/Y L/Y B/R B/Y B/L R/L B Sb R/W R/G W/G W/G P/B R/L Br/L Br/L Gy/G B/L P P (Gy) B Br/Y Y/L R Br/R R/G W/G P Br/L Br/Y Y/L B Y/L 1.7W R/B (Br) G/Y H20 W W W H21 Y L Y G G G/W L/R Br (L) Y Y Y Br/W Y/G W Y Br/R R/B G/Y G G G J17 B/L P/W L Br/R B W (B) L P/W B/L P/W Y/B Br/W B/L G Br/W B/L Br/W J04 Br/W (B) Br/W Br/W B/R Y/R Y W B L (L) R/L B/L Y/G L L Y B/L G Y J10 (Gy) L Y/G B/L R/W G/Y B B B B/R Y/R Y/B G/Y 1.7W Br/W Br/R Y/R G/Y 1.7W Br/R Br Y (Br) R/L R/L J02 L (B) R/W Br/R Br/R Br/R Br/R Y Br/R Br/R B L R/W R/W J16 Br/R Br/R Br/R J03 Br /R Br/R J09 Br/R R/L R/L R/L R/L Br/R Br/R Br/R B Y/L R/W R/B J01 B/L ON OFF HI LO Sb Br/R Br L B/L B/W B B G (B) 1.7W Ch B Y G R/Y Br/W L/B Y Dg B G P Ch Dg Y Y/R Br/W R/L Ch B/R G B 1.7W L N R Dg ON OFF B G B (B) B Br B 1.7W B Br Br/W (B) 1.7W Dg Y B Y (L) Dg Ch J05 Br/W Sb Br/R Y B (L) (B) B/L B/L B/L B/L B/L B/L B B/L B B 8W 27W 27W 8W 27W 27W 55W B 60W G Y B B B B B B B B B/W B Dg Ch Dg Br Sb Br/W (B) J06 Y G Y Ch Ch Ch Dg (B) B B B B B/W B B B B B B/L B/L B/L B/L B/L B/L B/L B L L L L B B B B B B B J13 B R R/B R/W B R1 R1 R/G Br/R R/W Y/B 15A Sb O/B R/L B B W L (B) L Br/R (B) R/L O/B (B) Y R/B 15A B/Y B/R (B) 27W 10A O/B R/L B O L L L L /Y Br Br/Y R/W J07 R/L 30A 7.5A L/Y Sb O R/B R/B R1 R R1 Br R/B B B (B) B R/B R/W R/W (Br) 7.5A R/W B B (B) (B) B R/L B R B B/R R/W R/L P/B Gy/G J19 B/Y B/R Br/Y R/B R/W R B/R RUN OFF Sb R/W R/B (Br) R/L R/L R/L B/R J18 B/R L/Y (B) R R/L R/W L/B Br B R/W B L (R) 8W (R) Br/Y R Br R/W R Br/R B/R R/L R/L ON OFF LOCK R/W R J08 B R L/B L/Y (B) B R B W W W (B) R R B R Sb L/Y L/B B/L Gy L R L/Y G/W L/Y Sb B/L Gy B J14 B B B B B SR400F/SR400FC 2015 WIRING DIAGRAM (B) J19 J18 (B) J08 ON OFF LOCK (R) (R) (Gy) RUN OFF (B) (B) (Br) (B) (B) (B) (B) (B) (Br) (B) J07 (B) 7.5A 7.5A 10A (B) J16 J03 15A (Gy) 1.7W J02 J09 H20 H21 (Br) 1.7W (Br) 1.7W J17 (B) (L) J10 (L) (B) J04 (B) ON OFF ON OFF HI LO 1.7W L N R (B) 1.7W 1.7W (B) 1.7W (B) J06 J13 J14 8W 27W (B) 27W 27W 8W 8W 27W 27W 55W (B) (L) (L) J05 60W 30A J01 15A ... EAS20050 SR4 00F SR4 00FC SERVICE MANUAL ©2014 by Yamaha Motor Corporation, U.S.A First edition, March 2014 All rights... to all authorized Yamaha dealers and will appear in future editions of this manual where applicable TIP • This Service Manual contains information regarding periodic maintenance to the emission... performance and emissions Proper service with the correct tools is necessary to ensure that the vehicle will operate as designed If there is any question about a service procedure, it is imperative