Page 4
EAS00002 NOTICE 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 man- ual. 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.
EASF0001 HOW TO USE THIS MANUAL CONSTRUCTION OF THIS MANUAL This manual consists of chapters for the main categories of subjects. (See “Illustrated symbols”) 1st title 1 :This is a chapter with its symbol on the upper right of each page. 2nd title 2 :This title appears on the upper of each page on the left of the chapter symbol.
SYMBOLS The following symbols are not relevant to every vehicle. SPEC INFO Symbols 1 to 9 indicate the subject of each chapter. 1 General information 2 Specifications 3 Periodic checks and adjustments 4 Engine 5 Cooling system 6 Carburetor 7 Chassis CARB COOL 8 Electrical system...
VEHICLE IDENTIFICATION INFO EAS00014 GENERALINFORMATION VEHICLEIDENTIFICATION EAS00017 VEHICLE IDENTIFICATION NUMBER The number 1 is stamped into the center of the frame. ENGINE SERIALNUMBER The engine serial number 1 is stamped into the crankcase. NOTE: Designs and specifications are subject to change without notice.
IMPORTANT INFORMATION INFO EAS00020 IMPORTANT INFORMATION PREPARATION FOR REMOVALAND DISASSEMBLY 1. Before removal and disassembly, remove all dirt, mud, dust and foreign material. 2. Use only the proper tools and cleaning equipment. Refer to the “SPECIALTOOLS”. 3. When disassembling, always keep mated parts together.
IMPORTANT INFORMATION INFO EAS00023 LOCK WASHERS/PLATES AND COT- TER PINS After removal, replace all lock washers/plates 1 and cotter pins. After the bolt or nut has been tightened to specification, bend the lock tabs along a flat of the bolt or nut. 300-000 EAS00024 BEARINGS AND OILSEALS...
CHECKING THE CONNECTIONS INFO EAS00026 CHECKING THE CONNECTIONS Check the leads, couplers, and connectors for stains, rust, moisture, etc. 1. Disconnect: 9 lead 9 coupler 9 connector 2. Check: 9 lead 9 coupler 9 connector Moisture → Dry with compressed air. Rust/stains →...
SPECIALTOOLS INFO EAS00027 SPECIALTOOLS The following special tools are necessary for complete and accurate tune-up and assembly. Use only the appropriate special tools as this will help prevent damage caused by the use of inappropriate tools or improvised techniques. Special tools, part numbers or both may differ depending on the country. When placing an order, refer to the list provided below to avoid any mistakes.
Page 18
SPECIALTOOLS INFO Tool No. Tool name/Usage Illustration Adoptor (M12) 90890-01278 This tool is necessary for installing the crankshaft. Tappet adjusting tool 90890-01311 This tool is necessary for adjusting valve clearance. Radiator cap tester Radiator cap tester adapter Radiator cap tester 90890-01325 Radiator cap tester adapter...
Page 19
SPECIALTOOLS INFO Tool No. Tool name/Usage Illustration Compression gauge 90890-03081 These tools are used to measure the engine compression. Pocket tester 90890-03112 This instrument is necessary for checking the electrical system. Engine tachometer 90890-03113 This tool is needed for detecting engine rpm.
Page 20
SPECIALTOOLS INFO Tool No. Tool name/Usage Illustration Valve lapper 90890-04101 This tool is used for removeing and installing the lifter and for lapping the valve. Valve guide remover (4.5 mm) 90890-04116 This tool is needed to remove and installing the valve guide. Valve guide installer (4.5 mm) 90890-04117 This tool is needed to install the valve...
SPEC GENERALSPECIFICATIONS SPECIFICATIONS GENERALSPECIFICATIONS Model T135SE/T135S Model code 5YP1 (T135SE) 5YP2 (T135S) Dimensions Overall length 1,945 mm (76.6 in) Overall width 705 mm (27.8 in) Overall height 1,065mm (41.9 in) Seat height 770 mm (30.3 in) Wheelbase 1,245 mm (49.0 in) Minimum ground clearance 140 mm (5.51 in)
Page 24
SPEC GENERALSPECIFICATIONS Model T135SE/T135S Carburetor Type/quantity VM22/1 Manufacturer MIKUNI Spark plug Type CPR8EA-9 Manufacturer Spark plug gap 0.8 – 0.9 mm (0.031 – 0.035 in) Wet, multiple-disc and centrifugal automatic Clutch type Transmission Primary reduction system Spur gear Primary reduction ratio 69/24 (2.875)
Page 25
SPEC GENERALSPECIFICATIONS Model T135SE/T135S Brake Front brake type Single disc brake operation Right hand operation Rear brake type Drum brake operation Right foot operation Suspension Front suspension Telescopic fork Rear suspension Swingarm (monocross) Shock absorber Front shock absorber Coil spring/oil damper...
SPEC MAINTENANCE SPECIFICATIONS CHASSIS Item Standard Limit Steering system Steering bearing type Ball and race bearing ---- Lock-to-lock angle (left/right) 45° ---- Front suspension Front fork travel 100 mm (3.94 in) ---- Fork spring free length 295.3 mm (11.63 in) 289.4 mm (11.39 in) Installed length...
Page 34
SPEC MAINTENANCE SPECIFICATIONS Item Standard Limit Rear wheel Type Spoke wheel ---- 17 ⋅ 1.60 Rim size ---- Rim material Steel ---- Max. radial wheel runout ---- 1.0 mm (0.04 in) Max. lateral wheel runout ---- 0.5 mm (0.02 in) Drive chain Type/manufacturer 428/DAIDO...
SPEC MAINTENANCE SPECIFICATIONS TIGHTENING TORQUES CHASSIS Tightening torque Part to be tightened Thread size Remarks Nmm·kg ft·lb Handlebar bracket and lower bracket Handlebar and handlebar bracket Brake hose and brake master cylinder Brake hose and brake caliper Brake master cylinder and holder Brake master cylinder and brake lever Rear view mirror (left and right) Front wheel axle nut...
Page 36
SPEC MAINTENANCE SPECIFICATIONS Tightening torque Part to be tightened Thread size Remarks Nmm·kg ft·lb Fuel tank and frame Fuel cock and fuel tank Seat and seat bracket NOTE: 1. First tighten the lower ring nut 30 Nm (3.0 m • kg, 22 ft • lb) by using a torque wrench, then loosen the ring nut 1/4 turn.
SPEC MAINTENANCE SPECIFICATIONS ELECTRICAL Item Standard Limit System voltage 12 V ---- Ignition system Ignition timing (B.T.D.C.) 10° at 1,400 r/min ---- Advanced type Digital ---- DC-C.D.I 248 – 372 Ω at 20 ° C (68 ° F)/R–W Pickup coil resistance/color ---- C.D.I.
Page 38
SPEC MAINTENANCE SPECIFICATIONS Item Standard Limit Electric starting system (T135SE) Type Constant mesh ---- Starter motor Model/manufacturer 5YP/PTMORIC ---- Operation voltage 12 V ---- Power output 0.20 kW ---- 0.032 – 0.039 Ω at 20 ° C (68 ° F)
CONVERSIONTABLE/ SPEC GENERALTIGHTENING TORQUE SPECIFICATIONS EAS00028 EAS00029 CONVERSION TABLE GENERALTIGHTENING TORQUE All specification data in this manual are listed SPECIFICATIONS in SI and METRIC UNITS. This chart specifies tightening torques for stan- Use this table to convert METRIC unit data to dard fasteners with a standard ISO thread pitch.
SPEC COOLINGSYSTEM DIAGRAMS COOLING SYSTEM DIAGRAMS 1 Radiator inlet hose å Align the white paint mark on the clamp with the 2 Radiator cap white paint mark on the radiator. 3 Hose clamp ∫ Band the end of the cover, before install the pro- 4 Coolant reservoir hose jection of the reservoir tank.
SPEC CABLE ROUTING CABLE ROUTING 1 Turn signal light relay å Install the turn signal relay ƒ Pass through into the wire 2 Meter assembly onto the bracket. guide, follow the routing order. 3 Left handlebar switch lead ∫ Connect the left handlebar Brake hose, throttle cable and 4 Speedometer cable switch lead coupler in front of...
Page 45
SPEC CABLE ROUTING ˆ Pass the wireharness behind ˚ Take care not to bend the the turn signal relay and brake choke cable when installing. hose, and then connect the front brake switch. ∆ Route the right handlebar switch lead behind the handle- bar and connect the coupler with handlebar right side, and then set the turn signal light...
Page 46
SPEC CABLE ROUTING 1 Front turn signal light lead t Neutral switch lead lead in front of the stay. ∂ Check that the connection of 2 Fitting tape (red) y A.C. magneto lead 3 Throttle cable u Coolant reservoir hose the acceleration pump cable 4 C.D.I.
Page 47
SPEC CABLE ROUTING ˙ Install the negative lead, µ Pass through the turn signal should be stopped. light lead into the guide. ˆ Pass through the fuel hose and vacuum hose into the cable guide. ∆ Route the overflow pipe to the left side of the engine and inside of the neutral switch lead.
Page 48
3 Fuse box t Protector (T135SE) ´ Outside of the frame. 4 Starter motor lead (T135SE) 5 Rear brake switch lead å Pass through the fan relay ƒ Be sure does not over the out- 6 Battery breather pipe lead into the frame pipe and side of the frame.
Page 50
SPEC CABLE ROUTING 1 Throttle position sensor lead e Overflow pipe ∂ Pass through the wireharness 2 Radiator inlet hose r Wireharness into the main switch and cable 3 Grommet guide. å Turn the downward of the sep- 4 Plate Pass through the hone lead 5 Fan motor lead arate part.
Page 51
SPEC CABLE ROUTING ˆ To the A.C. magneto. ∆ Cover the protector completely , after the coupler connected. ˚ Set the connected point below the pipe end. ¬ Pass through the high tension cord, fan motor lead and ther- mo sensor lead into the cut part on the plate.
Page 52
SPEC CABLE ROUTING 1 Speedometer cable å Route the acceleration pump 2 Acceleration pump cable cable into the right side of the 3 Throttle cable stay. ∫ Route the throttle cable into 4 Fuel sender lead 5 Choke cable the left side of the stay. ç...
Page 53
CHAPTER 3 PERIODIC CHECKS AND ADJUSTMENTS INTRODUCTION ....................3-1 PERIODIC MAINTENANCE AND LUBRICATION INTERVALS ......3-1 COVERS .........................3-3 REMOVING THE SIDE COWLINGS ..............3-3 INSTALLING THE SIDE COWLINGS ...............3-3 REMOVING THE FRONTCOWLING ...............3-3 INSTALLING THE FRONTCOWLING ..............3-3 REMOVING THE CENTER PANELS ..............3-4 INSTALLING THE CENTER PANELS ..............3-4 REMOVING THE REAR COWLINGS ...............3-4 INSTALLING THE REAR COWLINGS ..............3-5 REMOVING THE HEADLIGHTASSEMBLY.............3-6...
Page 54
CHECKING AND ADJUSTING THE STEERING HEAD ........3-35 CHECKING THE FRONTFORK ...............3-37 CHECKING THE TIRES ...................3-38 CHECKING AND TIGHTENING THE SPOKES ..........3-40 CHECKING AND LUBRICATING THE CABLES ..........3-41 LUBRICATING THE LEVER AND PEDALS ............3-41 LUBRICATING THE SIDESTAND ..............3-41 LUBRICATING THE CENTERSTAND ..............3-41 ELECTRICALSYSTEM ..................3-42 CHECKING AND CHARGING THE BATTERY..........3-42 CHECKING THE FUSE ..................3-46...
INTRODUCTION/ PERIODIC MAINTENANCE AND LUBRICATION INTERVALS EAS00036 PERIODIC CHECKS AND ADJUSTMENTS INTRODUCTION This chapter includes all information necessary to perform recommended checks and adjustments. If followed, these preventive maintenance procedures will ensure more reliable vehicle operation, a longer service life and reduce the need for costly overhaul work. This information applies to vehicles already in service as well as to new vehicles that are being prepared for sale.
Page 56
PERIODIC MAINTENANCE AND LUBRICATION INTERVALS ODOMETER READING ( ⋅ 1000 km) ANNUAL ITEM CHECK OR MAINTENANCE JOB CHECK √√√ √√ 9 Check coolant level and vehicle for coolant leakage. Cooling system 9 Change the YAMAHA GENUINE COOLANT. Every 3 years √√√√...
COVERS EASF0004 COVERS REMOVING THE SIDE COWLINGS 1. Remove: 9 screws 9 bolts 9 side cowlings (left and right) INSTALLING THE SIDE COWLINGS For installation, reverse the removal procedure. REMOVING THE FRONT COWLING 1. Remove: 9 screws 9 front cowling 2.
COVERS REMOVING THE CENTER PANELS 1. Remove: 9 screws 9 center panel (lower) 1 9 main switch cover 2 9 screws 9 center panel (upper) 3 NOTE: Remove the main switch cover by turning it in the direction of the arrow shown. 2.
ADJUSTING THE VALVE CLEARANCE EAS00049 ENGINE ADJUSTING THE VALVE CLEARANCE The following procedure applies to all of the valves. NOTE: 9 Valve clearance adjustment should be made on a cold engine, at room temperature. 9 When the valve clearance is to be measured or adjusted, the piston must be at top dead center (TDC) on the compression stroke.
Page 62
ADJUSTING THE VALVE CLEARANCE 5. Move: 9 radiator assembly To swing the radiator assembly toward the front side. 6. Remove: 9 water pump assembly 9 O-rings 7. Remove: 9 cylinder head cover 9 gasket 8. Remove: 9 timing check plug 1 (with O-ring) 9 center plug 2 (with O-ring)
ADJUSTING THE VALVE CLEARANCE c on the generator c. Align the TDC mark d on the rotor with the stationary pointer crankcase cover. d. Measure the valve clearance with a thick- ness gauge 1 Out of specification → Adjust. 10. Adjust: 9 valve clearance a.
ADJUSTING THE ENGINE IDLING SPEED EAS00054 ADJUSTING THE ENGINE IDLING SPEED NOTE: Prior to adjusting the engine idling speed, the air filter element should be clean, and the engine should have adequate compression. 1. Remove: 9 side cowlings (left and right) 9 front cowling 9 rear cowling (left) Refer to “REMOVING THESIDECOWL-...
ADJUSTING THE ENGINE IDLING SPEED/ ADJUSTING THE THROTTLE CABLE FREE PLAY 6. Adjust: 9 throttle cable free play Refer to “ADJUSTING THE THROTTLE CABLE FREE PLAY”. Throttle cable free play (at the flange of the throttle grip) 3–7 mm (0.12–0.28 in) 7.
Page 67
ADJUSTING THE THROTTLE CABLE FREE PLAY 3. Adjust: 9 throttle cable free play a. Pull back the adjusting nut cover. b. Loosen the locknut 1 c. Turn the adjusting nut 2 in direction a or b until the specified throttle cable free play is obtained.
CHECKING THE SPARK PLUG EAS00060 CHECKING THE SPARK PLUG 1. Remove: 9 side cowling (right) Refer to “REMOVING THE SIDE COWL- INGS”. 9 AIS resonator Be sure to remove the AIS hose, before removing the AIS resonator, otherwise to brake the AIS resonator mount. 2.
CHECKING THE SPARK PLUG/ MEASURING THE COMPRESSION PRESSURE 8. Install: 9 spark plug 13 Nm (1.3 m•kg, 9.5 ft•lb) NOTE: Before installing the spark plug, clean the spark plug and gasket surface. 9. Connect: 9 spark plug cap 10. Install: 9 AIS resonator 9 center panel (lower) Refer to “INSTALLING THE CENTER PAN-...
Page 70
MEASURING THE COMPRESSION PRESSURE 6. Install: 9 compression gauge 1 Compression gauge 90890-03081 7. Measure: 9 compression pressure → Refer to steps (c) Out of specification and (d). Compression pressure (at sea level) Minimum 490 kPa (4.9 kg/cm , 70 psi)/at 500 r/min Standard 560 kPa (5.6 kg/cm , 80 psi)/at 500 r/min...
CHANGING THE ENGINE OIL EAS00075 CHANGING THE ENGINE OIL 1. Start the engine, warm it up for several min- utes, and then turn it off. 2. Place a container under the engine oil drain bolt. 3. Remove: 9 oil level plug 1 9 engine oil drain plug 2 (with O-ring) 9 spring...
CLEANING THE AIR FILTER ELEMENT EAS00086 CLEANING THE AIR FILTER ELEMENT 1. Remove: 9 center panel (lower) Refer to “REMOVING THE CENTER PAN- ELS”. 2. Remove: 9 air filter case cover 1 9 air filter element 2 3. Clean: 9 air filter elements Apply compressed air to the outer surface of the air filter element.
CLEANING THE AIR FILTER ELEMENT/ ADJUSTING THE CLUTCH RELEASE SYSTEM/ CHECKING THE CARBURETOR JOINT AND INTAKE MANIFOLD 6. Install: 9 center panel (lower) Refer to “INSTALLING THE CENTERPAN- ELS”. EAS00086 ADJUSTING THE CLUTCH RELEASE SYSTEM 1. Adjust: 9 clutch release system a.
CHECKING THE CARBURETOR JOINT AND INTAKE MANIFOLD/ CHECKING THE FUELAND VACUUM HOSES 3. Install: 9 inner panel 9 rear cowlings (left and right) 9 front cowling 9 center panels (upper and lower) 9 side cowlings (left and right) Refer to “COVERS”. EAS00096 CHECKING THE FUELAND VACUUM HOSES...
CHECKING THE CRANKCASE BREATHER PIPE/ CHECKINGTHECOOLANTLEVEL EAS00098 CHECKING THE CRANKCASE BREATHER PIPE 1. Remove: 9 side cowlings (left and right) 9 center panels (upper and lower) 9 front cowling 9 rear cowlings (left and right) 9 inner panel Refer to “COVERS”. 2.
CHECKINGTHECOOLANTLEVEL/ CHECKINGTHECOOLINGSYSTEM Adding water instead of coolant lowers the antifreeze content of the coolant. If water is used instead of coolant check, and if nec- essary, correct the antifreeze concentration of the coolant. Use only distilled water. However, if dis- tilled water is not available, soft water may be used.
CHANGINGTHECOOLANT EAS00105 CHANGING THE COOLANT 1. Remove: 9 side cowlings (left and right) 9 front cowling Refer to “REMOVING THE SIDE COWL- INGS” and “REMOVING THE FRONT COWLING”. 2. Remove: 9 coolant reservoir tank cover 9 coolant reservoir cap 3. Disconnect: 9 coolant reservoir hose 1 4.
Page 81
CHANGINGTHECOOLANT Adding water instead of coolant lowers the antifreeze content of the coolant. If water is used instead of coolant check, and if nec- essary, correct the antifreeze concentration of the coolant. Use only distilled water. However, if dis- tilled water is not available, soft water may be used.
ADJUSTING THE REAR BRAKE CHASSIS EAS00113 ADJUSTING THE REAR BRAKE 1. Check: 9 brake pedal free play a Out of specification → Adjust. Brake pedal free play (at the end of the brake pedal) 25–35 mm (0.98–1.38 in) 2. Adjust: 9 brake pedal free play a.
CHECKING THE FRONT BRAKE PADS/ CHECKING THE REAR BRAKE SHOES/ ADJUSTING THE REAR BRAKE LIGHT SWITCH EAS00120 CHECKING THE FRONT BRAKE PADS The following procedure applies to all of the brake pads. 1. Operate the brake. 2. Check: 9 front brake pad Wear indicator groove almost disap- peared →...
ADJUSTING THE REAR BRAKE LIGHT SWITCH/ CHECKING THE FRONT BRAKE HOSE 2. Adjust: 9 rear brake light operation timing 1 of the rear brake a. Hold the main body light switch so that it does not rotate and turn the adjusting nut 2 in direction a or b until the rear brake light comes on at the proper time.
BLEEDING THE HYDRAULIC BRAKE SYSTEM EAS00133 BLEEDING THE HYDRAULIC BRAKE SYSTEM Bleed the hydraulic brake system whenever: the system is disassembled. a brake hose is loosened, disconnected or replaced. the brake fluid level is very low. brake operation is faulty. NOTE: 9 Be careful not to spill any brake fluid or allow the brake master cylinder reservoir to overflow.
BLEEDING THE HYDRAULIC BRAKE SYSTEM/ ADJUSTING THE DRIVE CHAIN SLACK NOTE: Loosening the bleed screw will release the pres- sure and cause the brake lever to contact the throttle grip. h. Tighten the bleed screw and then release the brake lever. i.
Page 87
ADJUSTING THE DRIVE CHAIN SLACK 1. Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. NOTE: Place the vehicle on a suitable stand so that the rear wheel is elevated. 2.
LUBRICATING THE DRIVE CHAIN/ CHECKING THE BRAKE FLUID LEVEL EAS00143 LUBRICATING THE DRIVE CHAIN The drive chain consists of many interacting parts. If the drive chain is not maintained prop- erly, it will wear out quickly. Therefore, the drive chain should be serviced, especially when the vehicle is used in dusty areas.
CHECKING THE BRAKE FLUID LEVEL/ CHECKING AND ADJUSTING THE STEERING HEAD Brake fluid may damage painted surfaces and plastic parts. Therefore, always clean up any spilt brake fluid immediately. NOTE: In order to ensure a correct reading of the brake fluid level, make sure the top of the brake fluid reservoir is horizontal.
Page 90
CHECKING AND ADJUSTING THE STEERING HEAD 4. Adjust: 9 steering head a. Loosen the upper ring nut 1 . b. Loosen the lower ring nut 2 and then tight- en it to specification with a steering nut wrench 3 . NOTE: Set the torque wrench at a right angle to the steering nut wrench.
CHECKING THE FRONT FORK EAS00149 CHECKING THE FRONT FORK 1. Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. 2. Check: 9 inner tube Damage/scratches → Replace. 9 oil seal Oil leakage →...
CHECKING THE TIRES EASF0015 CHECKING THE TIRES The following procedure applies to both of the tires. 1. Check: 9 tire pressure Out of specification → Regulate. The tire pressure should only be checked and regulated when the tire temperature equals the ambient air temperature. The tire pressure and the suspension must be adjusted according to the total weight (including cargo, rider, passenger and...
Page 93
CHECKING THE TIRES 2. Check: 9 tire surfaces Damage/wear → Replace the tire. Minimum tire tread depth 0.8 mm (0.03 in) 1 Tire tread depth 2 Sidewall 3 Wear indicator Do not use a tubeless tire on a wheel designed only for tube tires to avoid tire failure and personal injury from sudden deflation.
CHECKING THE TIRES/ CHECKING AND TIGHTENING THE SPOKES New tires have a relatively low grip on the road surface until they have been slightly worn. Therefore, approximately 100 km should be traveled at normal speed before any high-speed riding is done. After a tire has been repaired or replaced, be sure to tighten the tire air valve stem locknut...
CHECKING AND LUBRICATING THE CABLES/ LUBRICATING THE LEVER AND PEDALS/ LUBRICATING THE SIDESTAND/LUBRICATING THE CENTERSTAND EAS00170 CHECKING AND LUBRICATING THE CABLES The following procedure applies to all of the inner and outer cables. Damaged outer cable may cause the cable to corrode and interfere with its movement.
CHECKING AND CHARGING THE BATTERY EAS00176 ELECTRICALSYSTEM CHECKING AND CHARGING THE BATTERY Batteries generate explosive hydrogen gas and contain electrolyte which is made of poi- sonous and highly caustic sulfuric acid. Therefore, always follow these preventive measures: Wear protective eye gear when handling or working near batteries.
Page 97
CHECKING AND CHARGING THE BATTERY 3. Disconnect: 9 battery leads (from the battery terminals) First, disconnect the negative battery lead 1 , and then the positive battery lead 2 . 4. Disconnect: 9 battery breather hose 5. Remove: 9 battery 6.
Page 98
CHECKING AND CHARGING THE BATTERY Loosen the battery sealing caps. Make sure the battery breather hose and battery vent are free of obstructions. To ensure maximum performance, always charge a new battery before using it. Do not use a high-rate battery charger. They force a high-amperage current into the battery quickly and can cause battery overheating and battery plate damage.
Page 99
CHECKING AND CHARGING THE BATTERY 9 warpage or buckling of the battery plates or insulators is evident. 9. Check: 9 battery breather hose and battery vent Obstruction → Clean. Damage → Replace. 10. Install: 9 battery 11. Connect: 9 battery breather hose 1 When checking the battery, make sure the battery breather hose is properly installed and routed correctly.
CHECKING THE FUSE EASF0017 CHECKING THE FUSE To avoid a short circuit, always set the main switch to “OFF” when checking or replacing a fuse. 1. Open the seat and battery cover. 2. Remove: 9 fuse holder 1 3. Check: 9 fuse a.
REPLACING THE HEADLIGHT BULBS EAS00183 REPLACING THE HEADLIGHT BULBS The following procedure applies to both of the headlight bulbs. 1. Remove: 9 headlight assembly Refer to “REMOVING THE HEADLIGHT ASSEMBLY”. 2. Remove: 9 headlight bulb holder 1 3. Remove: 9 headlight bulb Since the headlight bulb gets extremely hot, keep flammable products and your hands away from the bulb until it has cooled down.
ADJUSTING THE HEADLIGHT BEAM EAS00186 ADJUSTING THE HEADLIGHT BEAM 1. Adjust: 9 headlight beam (vertically) a. Loosen the bolt 1 . b. Slide the bottom of the headlight unit for- ward a or backward b . Slide forward Headlight beam is raised.
CHAPTER 4 ENGINE REMOVING THE ENGINE ..................4-1 COOLING SYSTEM ..................4-1 ENGINE OIL......................4-1 CARBURETOR ....................4-1 FOOTREST......................4-2 MUFFLER ......................4-2 BRAKE PEDAL....................4-2 SHIFTPEDAL....................4-2 SIDE COWLING BRACKET................4-3 WIRE, CABLE AND HOSE ................4-3 ENGINE ASSEMBLY..................4-4 INSTALLING THE ENGINE ...................4-5 ENGINE ASSEMBLY..................4-5 WIRE, CABLE AND HOSE ................4-6 SIDE COWLING BRACKET................4-6 SHIFTPEDAL....................4-6 BRAKE PEDAL....................4-6...
Page 104
CHECKING THE PISTON PIN ................4-35 INSTALLING THE PISTON AND CYLINDER ...........4-36 GENERATOR AND STARTER CLUTCH ...............4-38 REMOVING THE GENERATOR ...............4-39 REMOVING THE STARTER CLUTCH (T135SE) ..........4-40 CHECKING THE STARTER CLUTCH (T135SE) ..........4-41 INSTALLING THE STARTER CLUTCH (T135SE) ..........4-42 INSTALLING THE GENERATOR ..............4-42 OILPUMP......................4-44...
Page 105
CHECKING THE BEARINGS ................4-67 CHECKING THE TIMING CHAIN GUIDE ............4-67 CHECKING THE TIMING CHAIN ..............4-67 INSTALLING THE CRANKSHAFT..............4-68 ASSEMBLING THE CRANKCASE ..............4-68 KICKSTARTER ......................4-70 REMOVING THE KICKSTARTER ..............4-71 CHECKING THE KICKSTARTER ..............4-73 INSTALLING THE KICKSTARTER ..............4-74 TRANSMISSION ....................4-76 REMOVING THE TRANSMISSION ..............4-77 DISASSEMBLING THE TRANSMISSION ............4-77 CHECKING THE SHIFTFORKS ..............4-78 CHECKING THE SHIFTDRUM ASSEMBLY............4-79...
REMOVING THE ENGINE EASF0018 ENGINE REMOVING THE ENGINE NOTE: It is not necessary to remove the engine in order to remove the following components. 9 Cylinder head 9 Cylinder 9 Piston 9 Clutch 9 Shift shaft 9 Oil pump 9 Generator 9 Starter clutch 1.
INSTALLING THE ENGINE EASF0019 INSTALLING THE ENGINE ENGINE ASSEMBLY Securely support the vehicle so there is no danger of it falling over when installing engine. 1. Install: 9 engine assembly 9 pivot shaft 1 9 washer 9 pivot shaft nut 9 rear upper mounting bolt 2 9 washer 9 rear upper mounting nut...
CYLINDER HEAD EAS00222 REMOVING THE CYLINDER HEAD 1. Remove 9 side cowlings (left and right) 9 front cowling 9 center panels (upper and lower) 9 rear cowlings (left and right) Refer to “COVERS” in chapter 3. 9 carburetor assembly Refer to “CARBURETOR” in chapter 6. 9 muffler Refer to “REMOVING THE ENGINE”.
Page 116
CYLINDER HEAD 6. Align: 9 “I” mark a on the generator rotor (with the stationary pointer on the crankcase) a. Turn the crankshaft counterclockwise. b. When the piston is at TDC on the compres- c on the sion stroke, align the “I” mark camshaft sprocket with the stationary point- er d on the cylinder head.
CYLINDER HEAD 10. Remove: 9 engine mount nut 9 washer 9 engine mount bolt 9 cylinder head bolts 9 cylinder head bolts 9 washers 9 cylinder head NOTE: 9 Loosen the nuts in the proper sequence as shown. 9 Loosen each nut 1/2 of a turn at a time. After all of the nuts are fully loosened, remove them.
CYLINDER HEAD 3. Measure: 9 cylinder head warpage Out of specification → Resurface the cylin- der head. Maximum cylinder head warpage 0.03 mm (0.0012 in) 1 and a thickness a. Place a straightedge gauge 2 across the cylinder head. b. Measure the warpage. c.
CYLINDER HEAD EAS00210 CHECKING THE TIMING CHAIN TENSIONER 1. Check: 9 timing chain tensioner Cracks/damage → Replace. a. While lightly pressing the timing chain ten- sioner rod by hand, turn the tensioner rod fully clockwise with a thin screwdriver 1 . b.
Page 120
CYLINDER HEAD 3. Tighten: 9 cylinder head bolts 22 Nm (2.2 m·kg, 16 ft•lb) 9 cylinder head bolts 10 Nm (1.0 m•kg, 7.2 ft•lb) 9 engine mount nut 72 Nm (7.2 m•kg, 52 ft•lb) NOTE: 9 Lubricate the cylinder head bolts with engine oil.
Page 121
CYLINDER HEAD 5. Install: 9 timing chain tensioner a. While lightly pressing the timing chain ten- sioner rod by hand, turn the tensioner rod fully clockwise with a thin screwdriver 1 . NOTE: Make sure that the tensioner rod has been fully set clockwise.
Page 122
CYLINDER HEAD 8. Check: 9 “I”mark a Align the “I” mark on the generator rotor with the stationary pointer on the crankcase. 9 “I”mark c Align the “I”mark on the camshaft sprocket with the stationary pointer d on the cylinder head.
CAMSHAFT EASF0022 REMOVING THE ROCKER ARMS AND CAMSHAFT NOTE: Prior to remove the rocker arms and camshaft, remove the cylinder head. 1. Loosen: 9 locknuts 1 9 adjusting screws 2 2. Remove: 9 camshaft retainer 1 3. Remove: 9 camshaft 1 NOTE: Screw an 8 mm bolt 2 into the threaded end of the camshaft and then pull out the camshaft.
CAMSHAFT EAS00205 CHECKING THE CAMSHAFT 1. Check: 9 camshaft lobes Blue discoloration/pitting/scratches → Replace the camshaft. 2. Measure: 9 camshaft lobe dimensions a and b → Out of specification Replace the camshaft. Camshaft lobe dimension limit Intake 29.613 mm (1.1659 in) 25.043 mm (0.9859 in) Exhaust 29.912 mm (1.1776 in)
Page 126
CAMSHAFT 2. Check: 9 rocker arm shaft Blue discoloration/excessive wear/pitting/ scratches → Replace or check the lubrica- tion system. 3. Measure: 9 rocker arm inside diameter Out of specification → Replace. Rocker arm inside diameter 9.985 – 10.000 mm (0.3931 – 0.3937 in) <Limit>: 9.950 mm (0.3917 in) 4.
CAMSHAFT EAS00207 CHECKING THE CAMSHAFT SPROCKET 1. Check: 9 camshaft sprocket Worn more than 1/4 tooth a → Replace the camshaft sprocket and the timing chain as a set. a 1/4 tooth b Correct 1 Timing chain 2 Camshaft sprocket EAS00219 INSTALLING THE CAMSHAFT AND ROCKER ARMS...
VALVES AND VALVE SPRINGS EASF0025 REMOVING THE VALVES NOTE: Prior to remove the valves, remove the cylinder head, camshaft and rocker arms. The following procedure applies to all of the valves and related components. NOTE: Before removing the internal parts of the cylin- der head (e.g., valves, valve springs, valve seats), make sure the valves properly seal.
VALVES AND VALVE SPRINGS 2. Remove: 9 valve cotters 1 NOTE: Remove the valve cotters by compressing the valve spring with the valve spring compressor Valve spring compressor 90890-04019 Valve spring compressor attachment 90890-04108 3. Remove: 9 upper spring seat 1 9 valve spring 2 9 valve stem seal 3 9 lower spring seat 4...
Page 131
CYLINDER HEAD 5. Install: 9 timing chain tensioner a. While lightly pressing the timing chain ten- sioner rod by hand, turn the tensioner rod fully clockwise with a thin screwdriver 1 . NOTE: Make sure that the tensioner rod has been fully set clockwise.
Page 132
CYLINDER HEAD 8. Check: 9 “I”mark a Align the “I” mark on the generator rotor with the stationary pointer on the crankcase. 9 “I”mark c Align the “I”mark on the camshaft sprocket with the stationary pointer d on the cylinder head.
Page 134
CAMSHAFT EASF0022 REMOVING THE ROCKER ARMS AND CAMSHAFT NOTE: Prior to remove the rocker arms and camshaft, remove the cylinder head. 1. Loosen: 9 locknuts 1 9 adjusting screws 2 2. Remove: 9 camshaft retainer 1 3. Remove: 9 camshaft 1 NOTE: Screw an 8 mm bolt 2 into the threaded end of the camshaft and then pull out the camshaft.
Page 135
CAMSHAFT EAS00205 CHECKING THE CAMSHAFT 1. Check: 9 camshaft lobes Blue discoloration/pitting/scratches → Replace the camshaft. 2. Measure: 9 camshaft lobe dimensions a and b → Out of specification Replace the camshaft. Camshaft lobe dimension limit Intake 29.613 mm (1.1659 in) 25.043 mm (0.9859 in) Exhaust 29.912 mm (1.1776 in)
Page 136
CAMSHAFT 2. Check: 9 rocker arm shaft Blue discoloration/excessive wear/pitting/ scratches → Replace or check the lubrica- tion system. 3. Measure: 9 rocker arm inside diameter Out of specification → Replace. Rocker arm inside diameter 9.985 – 10.000 mm (0.3931 – 0.3937 in) <Limit>: 9.950 mm (0.3917 in) 4.
Page 137
CAMSHAFT EAS00207 CHECKING THE CAMSHAFT SPROCKET 1. Check: 9 camshaft sprocket Worn more than 1/4 tooth a → Replace the camshaft sprocket and the timing chain as a set. a 1/4 tooth b Correct 1 Timing chain 2 Camshaft sprocket EAS00219 INSTALLING THE CAMSHAFT AND ROCKER ARMS...
Page 138
VALVES AND VALVE SPRINGS EASF0024 VALVES AND VALVE SPRINGS 1 Valve cotter 2 Upper spring seat 3 Valve spring 4 Valve stem seal 5 Lower spring seat 6 Intake valve 7 Exhaust valve 4-22 http://www.motorcycle.in.th...
Page 139
VALVES AND VALVE SPRINGS EASF0025 REMOVING THE VALVES NOTE: Prior to remove the valves, remove the cylinder head, camshaft and rocker arms. The following procedure applies to all of the valves and related components. NOTE: Before removing the internal parts of the cylin- der head (e.g., valves, valve springs, valve seats), make sure the valves properly seal.
Page 140
VALVES AND VALVE SPRINGS 2. Remove: 9 valve cotters 1 NOTE: Remove the valve cotters by compressing the valve spring with the valve spring compressor Valve spring compressor 90890-04019 Valve spring compressor attachment 90890-04108 3. Remove: 9 upper spring seat 1 9 valve spring 2 9 valve stem seal 3 9 lower spring seat 4...
Page 141
VALVES AND VALVE SPRINGS 2. Replace: 9 valve guide NOTE: To ease valve guide removal and installation, and to maintain the correct fit, heat the cylinder head to 100 ° C in an oven. a. Remove the valve guide with the valve guide remover 1 .
VALVES AND VALVE SPRINGS 6. Measure: 9 valve stem runout Out of specification → Replace the valve. NOTE: 9 When installing a new valve, always replace the valve guide. 9 If the valve is removed or replaced, always replace the valve stem seal. Valve stem runout limit 0.01 mm (0.0004 in) EAS00240...
Page 143
VALVES AND VALVE SPRINGS NOTE: Where the valve seat and valve face contacted one another, the blueing will have been removed. 4. Lap: 9 valve face 9 valve seat NOTE: After replacing the cylinder head or replacing the valve and valve guide, the valve seat and valve face should be lapped.
VALVES AND VALVE SPRINGS c again. If j. Measure the valve seat width the valve seat width is out of specification, reface and lap the valve seat. EAS00241 CHECKING THE VALVE SPRINGS The following procedure applies to all of the valve springs.
VALVES AND VALVE SPRINGS EAS00245 INSTALLING THE VALVES The following procedure applies to all of the valves and related components. 1. Deburr: 9 valve stem end (with an oil stone) 2. Lubricate: 9 valve stem 1 9 valve stem seal 2 (with the recommended lubricant) Recommended lubricant Molybudemium oil...
Page 146
VALVES AND VALVE SPRINGS 4. Install: 9 valve cotters 1 NOTE: Install the valve cotters by compressing the valve spring with the valve spring compressor Valve spring compressor 90890-04019 Valve spring compressor attachment 90890-04108 5. To secure the valve cotters onto the valve stem, lightly tap the valve tip with a soft- face hammer.
CYLINDER AND PISTON EASF0028 REMOVING THE CYLINDER AND PISTON NOTE: Prior to removing the cylinder and piston, remove the cylinder head. 1. Remove: 9 cylinder 1 2. Remove: 9 dowel pins 1 9 gasket 2 3. Remove: 9 piston pin clip 1 9 piston pin 2 9 piston 3 Do not use a hammer to drive the piston pin...
CYLINDER AND PISTON EAS00255 CHECKING THE CYLINDER AND PISTON 1. Check: 9 piston surface 9 cylinder wall Vertical scratches → Replace the cylinder, and replace the piston and piston rings as a set. 2. Measure: 9 piston-to-cylinder clearance a. Measure cylinder bore “C” with the cylinder bore gauge.
CYLINDER AND PISTON Piston-to-cylinder clearance = Cylinder bore “C” – Piston skirt diameter “P” Piston-to-cylinder clearance 0.0015 – 0.048 mm (0.0006 – 0.0019 in) <Limit>: 0.15 mm (0.0059) f. If out of specification, replace the cylinder, and replace the piston and piston rings as a set.
CYLINDER AND PISTON 3. Measure: 9 piston ring end gap Out of specification → Replace the piston ring. NOTE: The end gap of the oil ring expander cannot be measured. If the end gaps of the oil ring rails are excessive, replace all three piston rings. Piston ring end gap Top ring 0.10 –...
GENERATOR AND STARTER CLUTCH EAS00346 REMOVING THE GENERATOR 1. Drain: 9 engine oil (completely from the crankcase) Refer to “CHANGING THE ENGINE OIL” in chapter 3. 2. Remove: 9 side cowling (left) Refer to “REMOVING THE SIDE COWL- INGS” in chapter 3. 9 shift pedal 9 drive sprocket cover Refer to “REMOVING THE DRIVE CHAIN...
GENERATOR AND STARTER CLUTCH EAS00355 INSTALLING THE STARTER CLUTCH (T135SE) 1. Install: 9 starter clutch 1 14 Nm (1.4 m•kg, 10 ft•lb) NOTE: 9 While holding the generator rotor 2 with the sheave holder, tighten the starter clutch bolt. 9 Do not allow the sheave holder to touch the projection on the generator rotor.
Page 159
GENERATOR AND STARTER CLUTCH 3. Apply: 9 sealant (on to the generator lead grommet) Yamaha bond No. 1215 90890-85505 4. Apply: 9 sealant NOTE: Be sure to apply the sealant onto the crankcase cover bolt thread as shown one. Yamaha bond No. 1215 90890-85505 5.
OILPUMP REMOVING THE OILPUMP 1. Drain: 9 engine oil (completely from the crankcase) Refer to “CHANGING THE ENGINE OIL” in chapter 3. 2. Remove: 9 generator Refer to “GENERATOR AND STARTER CLUTCH”. 3. Remove: 9 clutch release shift arm 4. Remove: 9 gear cover 5.
OILPUMP EAS00376 INSTALLING THE OILPUMP 1. Install: 9 gasket 1 9 oil pump assembly 7 Nm (0.7 m•kg, 5.0 ft•lb) NOTE: Install the gasket with section a in the position as shown in the illustration. After tightening the bolts, make sure the oil pump turns smoothly.
CLUTCH EAS00277 REMOVING THE CLUTCH 1. Drain: 9 engine oil (completely from the crankcase) Refer to “CHANGING THE ENGINE OIL” in chapter 3. 2. Remove: 9 side cowlings (left and right) Refer to “REMOVING THE SIDE COWL- INGS” in chapter 3. 9 muffler 9 footrest 9 brake pedal...
Page 167
CLUTCH 7. Straighten the lock washer tab. 8. Loosen: 9 clutch boss nut 1 NOTE: While holding the clutch boss 2 with the univer- sal clutch holder 3 , loosen the clutch boss nut. Universal clutch holder 90890-04086 9. Remove: 9 clutch boss nut 1 9 lock washer 2 9 clutch boss 3...
CLUTCH EAS00282 CHECKING THE CLUTCH SPRINGS The following procedure applies to all of the clutch springs. 1. Check: 9 clutch spring Damage → Replace the clutch springs as a set. 2. Measure: 9 clutch spring free length a Out of specification → Replace the clutch springs as a set.
Page 173
CLUTCH 4. Tighten: 9 clutch boss nut 1 70 Nm (7.0 m•kg, 50 ft•lb) NOTE: While holding the clutch boss 2 with the univer- sal clutch holder 3 , tighten the clutch boss nut. Universal clutch holder 90890-04086 5. Bend the lock washer tab along a flat side of the nut.
SHIFT SHAFT EASF0032 SHIFT SHAFT 1 Shift pedal 8 Washer t Collar 2 Washer 9 Thrust bearing y Plate 3 Spring 0 Dowel pin u Shift drum segment 4 Shift fork guide bar q Shift shaft 5 Shift guide w Shift lever assembly 6 Pawl holder e Stopper lever spring 7 Guide...
1. Remove: 9 engine Refer to “REMOVING THE ENGINE”. 2. Remove: 9 starter motor lead (T135SE) 9 starter motor (T135SE) Refer to “STARTER MOTOR (T135SE)” in chapter 8. 3. Remove: 9 cylinder head Refer to “CYLINDER HEAD”. 9 cylinder 9 piston Refer to “CYLINDER AND PISTON”.
CRANKCASE AND CRANKSHAFT 5. Remove: 9 crankcase bolts NOTE: Loosen each bolt 1/4 of a turn at a time, in stages and in a crisscross pattern. After all of the bolts are fully loosened, remove them. 6. Remove: 9 right crankcase 9 dowel pins Tap on one side of the crankcase with a soft- face hammer.
Page 182
CRANKCASE AND CRANKSHAFT 2. Measure: 9 big end side clearance Out of specification → Replace the crank- shaft. Big end side clearance 0.11 – 0.41 mm (0.0043 – 0.0161 in) 3. Measure: 9 crankshaft width Out of specification → Replace the crank- shaft.
CRANKCASE AND CRANKSHAFT EAS00399 CHECKING THE CRANKCASE 1. Thoroughly wash the crankcase halves in a mild solvent. 2. Thoroughly clean all the gasket surfaces and crankcase mating surfaces. 3. Check: 9 crankcase Cracks/damage → Replace. 9 oil delivery passages Obstructions → Blow out with compressed air.
CRANKCASE AND CRANKSHAFT EAS00408 INSTALLING THE CRANKSHAFT 1. Install: 9 crankshaft assembly 1 NOTE: Use the crankshaft installing tool (spacer installer pot 3 , installer bolt 4 , adaptor 5 ) to install the crankcase (left). To avoid scratching the crankshaft and to ease the installation procedure, lubricate the oil seal lips with lithium-soap-based grease and each bearing with engine oil.
Page 185
CRANKCASE AND CRANKSHAFT 4. Install: 9 neutral switch 4 Nm (0.4 m•kg, 3.0 ft•lb) 9 crankcase bolts 10 Nm (1.0 m•kg, 7.2 ft•lb) 5. Apply: 9 engine oil (onto the crankshaft bearings and oil deliv- ery holes) 6. Check: 9 crankshaft and transmission operation Rough movement →...
KICKSTARTER REMOVING THE KICKSTARTER 1. Drain: 9 engine oil (completely from the crankcase) Refer to “CHANGING THE ENGINE OIL” in chapter 3. 9 coolant (completely from the water jacket) Refer to “CHANGING THE COOLANT” in chapter 3. 2. Remove: 9 side cowlings (left and right) 9 front cowling 9 center panels (upper and lower) 9 rear cowlings (left and right)
Page 188
Refer to “SOILPUMP”. 9 generator 9 starter clutch Refer to “GENERATOR AND STARTER CLUTCH. 7. Remove: 9 starter motor (T135SE) Refer to “STARTER MOTOR” in chapter 8. 8. Remove: 9 engine Refer to “REMOVING THE ENGINE”. 9. Separate: 9 crankcase Refer to “CRANKCASE”.
Refer to “CRANKCASE”. 4. Install: 9 engine Refer to “REMOVING THE ENGINE”. 5. Install: 9 starter motor (T135SE) Refer to “STARTER MOTOR (T135SE)” in chapter 8. 6. Install: 9 oil pump assembly Refer to “OILPUMP”. 9 generator Refer to “GENERATOR AND STARTER CLUTCH”.
Page 191
KICKSTARTER 9. Install: 9 piston 9 cylinder Refer to “CYLINDER AND PISTON”. 9 cylinder head Refer to “CYLINDER HEAD”. 9 radiator assembly Refer to “RADIATOR” in chapter 5. 9 cylinder head Refer to “CYLINDER HEAD”. 10. Install: 9 muffler 9 footrest 9 brake pedal Refer to “REMOVING THE ENGINE”.
TRANSMISSION EASF0042 REMOVING THE TRANSMISSION NOTE: Prior to removing the transmission, separate the crankcase. 1. Remove: 9 shift fork guide bar 1 9 shift fork guide bar springs 9 shift fork “R” 2 9 shift fork “L” 3 9 shift drum 4 NOTE: Note the position of each part.
TRANSMISSION 4. Check: 9 transmission gear engagement (each pinion gear to its respective wheel gear) Incorrect → Reassemble the transmission axle assemblies. NOTE: 21.1~21.3 mm When reassembling the drive axle, press the 1 onto the drive axle 2 as 2nd wheel gear shown.
Page 197
TRANSMISSION 2. Check: 9 transmission 9 shift drum 9 shift forks Rough movement → Repair. NOTE: 9 Oil each gear, shaft, and bearing thoroughly. 9 Before assembling the crankcase, be sure that the transmission is in neutral and that the gears turn freely.
COOL CHAPTER 5 COOLINGSYSTEM RADIATOR ......................5-1 WATER PUMP.......................5-2 REMOVING THE RADIATOR ................5-3 CHECKING THE RADIATOR ................5-4 CHECKING THE THERMOSTAT..............5-6 DISASSEMBLING THE WATER PUMP............5-6 CHECKING THE WATER PUMP..............5-7 ASSEMBLING THE WATER PUMP..............5-8 INSTALLING THE THERMOSTAT..............5-8 INSTALLING THE WATER PUMP..............5-9 INSTALLING THE RADIATOR ................5-9 http://www.motorcycle.in.th...
COOL COOLING SYSTEM REMOVING THE RADIATOR Ahot radiator is under pressure. Therefore,do not remove the radiator cap when the engine is hot. Scalding hot fluid and steam may be blown out, which could cause serious injury. When the engine has cooled, open the radiator cap as fol- lows: Place a thick rag or a towel over the radi- ator cap and slowly turn the radiator cap coun- terclockwise toward the detent to allow any...
COOL COOLINGSYSTEM 5. Remove: 9 bracket 9 thermostat cover 1 9 thermostat 2 6. Remove: 9 fan motor EAS00455 CHECKING THE RADIATOR 1. Check: 9 radiator fins Obstruction → Clean. Apply compressed air to the rear of the radi- ator. Damage →...
Page 205
COOL COOLING SYSTEM 3. Measure: 9 radiator cap opening pressure Below the specified pressure → Replace the radiator cap. Radiator cap opening pressure 93.2 – 122.6 kPa (0.93 – 1.23 kg/cm , 13.5 – 17.8 psi) a. Install the radiator cap tester 1 and radiator cap tester adapter 2 to the radiator cap 3 .
COOL COOLINGSYSTEM EAS00462 CHECKING THE THERMOSTAT 1. Check: 9 thermostat 1 Does not open at 80.5 – 83.5° C (176.9 – 182.3° F) → Replace. a. Suspend the thermostat in a container filled with water. b. Slowly heat the water. c.
COOL COOLING SYSTEM 2. Remove: 9 plate NOTE: Slide the plate as shown, and then remove the plate from the water pump housing. 3. Remove: 9 impeller 1 9 bearing 2 NOTE: Remove the bearing from the outside of the water pump housing.
COOL COOLINGSYSTEM EAS00475 ASSEMBLING THE WATER PUMP 1. Install: 9 water pump seal 1 NOTE: Install the water pump seal with the special tools. Mechanical seal installer 90890-04145 Middle driven shaft bearing driver 90890-04058 å Push down. 2. Lubricate: 9 water pump seal 1 Recommended lubricant Lithium soap base grease 3.
COOL COOLING SYSTEM EAS00478 INSTALLING THE WATER PUMP 1. Install: 9 O-rings 9 water pump housing 1 10 Nm (1.0 m•kg, 7.2 ft•lb) Always use a new O-ring. NOTE: 9 Align the projection a on the impeller shaft with the slit b on the camshaft. 9 Lubricate the O-ring with a thin coat of lithium- soap-based grease.
Page 210
COOL COOLINGSYSTEM 4. Check: 9 cooling system Leaks → Repair or replace any faulty part. a. Attach the radiator cap tester 1 to the radi- ator. Radiator cap tester 90890-01325 Radiator cap tester adapter 90890-01352 b. Apply 100 kPa (1.0 kg/cm , 14.22 psi) of pressure.
CARB CHAPTER 6 CARBURETOR CARBURETOR......................6-1 REMOVING THE CARBURETOR..............6-2 DISASSEMBLING THE CARBURETOR............6-5 CHECKING THE CARBURETOR..............6-6 ASSEMBLING THE CARBURETOR..............6-9 INSTALLING THE CARBURETOR..............6-10 CHECKING AND ADJUSTING THE THROTTLE POSITION SENSOR....6-11 CHECKING THE FUELCOCK OPERATION............6-13 AIR INDUCTION SYSTEM..................6-14 AIR INJECTION....................6-14 AIR CUT-OFF VALVE..................6-14 AIR INDUCTION SYSTEM DIAGRAMS............6-15 REMOVING THE AIR INDUCTION SYSTEM............6-16 CHECKING THE AIR INDUCTION SYSTEM............6-16 INSTALLING THE AIR INDUCTION SYSTEM..........6-16...
CARB CARBURETOR EASF0043 CARBURETOR CARBURETOR 1 Coasting enricher assembly w Float chamber rubber gasket 2 Carburetor top cover e Float pivot pin 3 Throttle valve spring r Float chamber 4 Needle set t Fuel drain screw 5 Throttle valve y Carburetor overflow hose 6 Throttle stop screw set u Throttle position sensor 7 Pilot air screw set...
CARB CARBURETOR DISASSEMBLING THE CARBURETOR NOTE: The following parts can be cleaned and inspect- ed without disassembly. 9 Coasting enricher 9 Throttle stop screw 9 Pilot air screw 1. Remove: 9 coasting enricher assembly 9 o-ring 2. Remove: 9 pilot air screw set 1 3.
CARB CARBURETOR EAS00487 ASSEMBLING THE CARBURETOR Before assembling the carburetor, wash all of the parts in a petroleum-based solvent. Always use a new gasket and new O-rings. 1. Measure: 9 float height a Out of specification → Adjust. Float height 9.2 mm (0.36 in) a.
CARB CARBURETOR 7. Adjust: 9 engine idling speed Engine idling speed 1,300–1,500 r/min Refer to “ADJUSTING THE ENGINE IDLING SPEED” in chapter 3. 8. Adjust: 9 throttle cable free play Throttle cable free play (at the flange of the throttle grip) 3–7 mm (0.12–0.18 in) Refer to “ADJUSTING THE THROTTLE CABLE FREE PLAY”...
Page 224
CARB CARBURETOR c. Connect the pocket tester (DC20V) to the terminals of the throttle position sensor. →→ Positive (+) pocket tester probe B/LLY yellow terminal →→ Negative (-) pocket tester probe black/blue terminal Throttle position sensor input volt- 5V at 20 ° C (yellow-black/blue) 2.
CARB CARBURETOR EAS00506 CHECKING THE FUELCOCK OPERA- TION 1. Remove: 9 rear cowling (left) Refer to “REMOVING THE REAR COWL- INGS” in chapter 3. 2. Place a container under the end of the fuel hose 1 . 3. Check: 9 fuel cock operation a.
CARB AIR INDUCTION SYSTEM AIR INDUCTION SYSTEM AIR INJECTION The air induction system burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons. When there is negative pressure at the exhaust port, the reed valve opens, allowing secondary air to flow into the exhaust port.
CARB AIR INDUCTION SYSTEM AIR INDUCTION SYSTEM DIAGRAMS 1 Bend hose (air filter case to air cut-off valve) 2 Air cut-off valve 3 AIS resonator 4 Vacuum sensing hose 6-15 http://www.motorcycle.in.th...
CHAS CHAPTER 7 CHASSIS FRONT WHEELAND BRAKE DISC..............7-1 REMOVING THE FRONTWHEEL..............7-2 CHECKING THE FRONTWHEEL..............7-3 CHECKING THE BRAKE DISC.................7-5 CHECKING THE SPEEDOMETER GEAR UNIT..........7-6 INSTALLING THE FRONTWHEEL..............7-7 REAR WHEELAND BRAKE.................7-8 REMOVING THE REAR WHEEL..............7-9 DISASSEMBLING THE BRAKE SHOE PLATE..........7-11 CHECKING THE REAR WHEEL...............7-11 CHECKING THE REAR WHEELDRIVE HUB...........7-12 CHECKING THE BRAKE...................7-13 ASSEMBLING THE BRAKE SHOE PLATE............7-14...
Page 230
CHAS REAR SHOCK ABSORBER ASSEMBLYAND SWINGARM........7-49 REMOVING THE REAR SHOCK ABSORBER ASSEMBLIES AND SWINGARM....................7-50 CHECKING THE REAR SHOCK ABSORBER ASSEMBLIES......7-52 CHECKING THE SWINGARM................7-53 INSTALLING THE REAR SHOCK ABSORBER ASSEMBLIES AND SWINGARM....................7-53 DRIVE CHAIN AND SPROCKETS................7-55 REMOVING THE DRIVE CHAIN AND SPROCKETS........7-56 CHECKING THE DRIVE CHAIN................7-57 INSTALLING THE DRIVE CHAIN AND SPROCKETS........7-58 http://www.motorcycle.in.th...
CHAS FRONT WHEELAND BRAKE DISC EAS00519 REMOVING THE FRONT WHEEL 1. Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. 2. Remove: 9 speedometer cable 1 9 axle nut 2 9 washer 3 3.
CHAS FRONT WHEELAND BRAKE DISC EAS00526 CHECKING THE FRONT WHEEL 1. Check: 9 wheel axle Roll the wheel axle on a flat surface. Bends → Replace. Do not attempt to straighten a bent wheel axle. 2. Check: 9 tire Damage/wear → Replace. Refer to “CHECKING THE TIRES”...
Page 234
CHAS FRONT WHEELAND BRAKE DISC 5. Check: 9 spacers Damage/wear → Replace. After mounting a new tire, ride conserva- tively for a while to become accustomed to the “feel” of the new tire and to allow the tire to seat itself properly in the rim. Failure to do so could lead to an accident with possible injury to the rider or damage to the vehicle.
CHAS FRONT WHEELAND BRAKE DISC d. Install the new wheel bearings and oil seals in the reverse order of disassembly. Do not contact the wheel bearing inner race or balls . Contact should be made only with the outer race NOTE: Use a socket 7 that matches the diameter of the wheel bearing outer race and oil seal.
CHAS FRONT WHEELAND BRAKE DISC 3. Measure: 9 brake disc thickness Measure the brake disc thickness at a few different locations. Out of specification → Replace. Brake disc thickness limit (mini- mum) 3.0 mm (0.12 in) 4. Adjust: 9 brake disc deflection a.
CHAS FRONT WHEELAND BRAKE DISC EAS00542 INSTALLING THE FRONT WHEEL 1. Lubricate: 9 wheel axle 9 wheel bearings 9 oil seal lips 9 speedometer gear unit Recommended lubricant Lithium-soap-based grease 2. Install: 9 brake disc 9 front wheel Refer to “CHECKING THE BRAKE DISC”. NOTE: Make sure the projection a on the speedometer gear unit fits between the projections on the...
CHAS REAR WHEELAND BRAKE EAS00563 REMOVING THE REAR WHEEL 1. Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. NOTE: Place the vehicle on a suitable stand so that the rear wheel is elevated.
Page 240
CHAS REAR WHEELAND BRAKE 5. Remove: 9 rear wheel axle nut 1 9 washer 9 rear wheel axle 2 9 washer 9 collar 6. Remove: 9 rear wheel assembly 1 NOTE: Push the rear wheel forward and remove the drive chain from the driven sprocket. 7.
CHAS REAR WHEELAND BRAKE EAS00539 CHECKING THE BRAKE The following procedure applies to all of the brake shoes. 1. Check: 9 brake shoe lining Glazed areas → Repair. Sand the glazed areas with course sandpa- per. NOTE: After sanding the glazed areas, clean the brake shoe with a cloth.
CHAS REAR WHEELAND BRAKE EAS00570 ASSEMBLING THE BRAKE SHOE PLATE 1. Install: 9 brake camshaft 1 9 brake shoe wear indicator 2 9 brake camshaft lever 7 Nm (0.7 m·kg, 5.0 ft·lb) a. Install the brake camshaft so its punch mark a is positioned as shown.
Page 245
CHAS REAR WHEELAND BRAKE 4. Adjust: 9 drive chain slack Drive chain slack 25–35 mm (0.98–1.38 in) Refer to “ADJUSTING THE DRIVE CHAIN SLACK” in chapter 3. 5. Tighten: 9 wheel axle nut 60 Nm (6.0 m·kg, 43 ft·lb) Do not loosen the wheel axle nut after tight- ening it to the specified torque.
CHAS FRONT BRAKE EAS00579 Disc brake components rarely require disas- sembly. Therefore, always follow these preventive measures: Never disassemble brake components unless absolutely necessary. If any connection on the hydraulic brake system is disconnected, the entire brake system must be disassembled, drained, cleaned, properly filled, and bled after reassembly.
Page 248
CHAS FRONT BRAKE 2. Remove: 9 clips 9 brake pad retaining pin 9 brake pads 1 9 brake pad spring 3. Measure: 9 brake pad wear limit a → Replace the brake Out of specification pads as a set. Brake pad wear limit 0.8 mm (0.03 in) 4.
CHAS FRONT BRAKE 5. Lubricate: 9 brake pad retaining pin Recommended lubricant Lithium-soap-based grease 9 Do not allow grease to contact the brake pads. 9 Remove any excess grease. 6. Install: 9 brake caliper bolts 35 Nm (3.5 m·kg, 25 ft·lb) 7.
Page 250
CHAS FRONT BRAKE 1. Remove: 9 union bolt 1 9 copper washers 2 9 brake hose NOTE: Put the end of the brake hose into a container and pump out the brake fluid carefully. 2. Remove: 9 brake caliper 1 9 pin 9 brake pad retaining pin 9 brake pads...
CHAS FRONT BRAKE EAS00631 CHECKING THE FRONT BRAKE CALIPER Recommended brake component replacement schedule Brake pads If necessary Piston seal Every two years Brake hose Every four years Every two years and Brake fluid whenever the brake is disassembled 1. Check: 9 brake caliper piston 1 Rust/scratches/wear →...
CHAS FRONT BRAKE EAS00634 ASSEMBLING AND INSTALLING THE FRONT BRAKE CALIPER Before installation, all internal brake com- ponents should be cleaned and lubricated with clean or new brake fluid. Never use solvents on internal brake com- ponents as they will cause the piston seals to swell and distort.
Page 253
CHAS FRONT BRAKE 5. Fill: 9 brake master cylinder reservoir (with the specified amount of the recom- mended brake fluid) Recommended brake fluid DOT 3 or 4 Use only the designated brake fluid. Other brake fluids may cause the rubber seals to deteriorate, causing leakage and poor brake performance.
CHAS FRONT BRAKE EAS00588 DISASSEMBLING THE FRONT BRAKE MASTER CYLINDER NOTE: Before disassembling the front brake master cylinder, drain the brake fluid from the entire brake system. 1. Remove: 9 side cowlings (left and right) 9 front cowling Refer to “REMOVING THE SIDE COWL- INGS”...
CHAS FRONT BRAKE 3. Check: 9 brake master cylinder reservoir 1 Cracks/damage → Replace. 9 brake master cylinder reservoir diaphragm 2 Damage/wear → Replace. 4. Check: 9 brake hose 1 Cracks/damage/wear → Replace. EAS00598 ASSEMBLING AND INSTALLING THE FRONT BRAKE MASTER CYLINDER Before installation, all internal brake com- ponents should be cleaned and lubricated with clean or new brake fluid.
Page 258
CHAS FRONT BRAKE 2. Install: 9 copper washers 1 9 brake hose 2 9 union bolt 26 Nm (2.6 m·kg, 19 ft·lb) Proper brake hose routing is essential to insure safe vehicle operation. Refer to “CABLE ROUTING”. NOTE: Turn the handlebar to the left and right to make sure the brake hose does not touch other parts (e.g., wire harness, cables, leads).
Page 259
CHAS FRONT BRAKE 4. Bleed: 9 brake system Refer to “BLEEDING THE HYDRAULIC BRAKE SYSTEM” in chapter 3. 5. Check: 9 brake fluid level a → Add Below the minimum level mark the recommended brake fluid to the proper level. Refer to “CHECKING THE BRAKE FLUID LEVEL”...
CHAS FRONT FORK EAS00649 REMOVING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. 1. Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. NOTE: Place the vehicle on a suitable stand so that the front wheel is elevated.
CHAS FRONT FORK 5. Remove: 9 front fork cap bolt 1 (with a 10-mm hexagonal wrench) 6. Loosen: 9 lower bracket pinch bolt 2 Before loosening the lower bracket pinch bolt, support the front fork leg. 7. Remove: 9 front fork leg EAS00655 DISASSEMBLING THE FRONT FORK LEGS...
Page 263
CHAS FRONT FORK 4. Remove: 9 damper rod assembly bolt 9 copper washer NOTE: While holding the damper rod assembly with a 10 mm hexagon nut/socket wrench 1 and the T- handle 2 , loosen the damper rod assembly bolt T-handle 90890-01326 5.
CHAS FRONT FORK EAS00657 CHECKING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. 1. Check: 9 inner tube 1 9 outer tube 2 Bends/damage/scratches → Replace. Do not attempt to straighten a bent inner tube as this may dangerously weaken it.
CHAS FRONT FORK EAS00659 ASSEMBLING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. Make sure the oil levels in both front fork legs are equal. Uneven oil levels can result in poor han- dling and a loss of stability.
Page 266
CHAS FRONT FORK NOTE: 1 while Tighten the damper rod assembly bolt holding the damper rod with the T-handle 2 and a 10 mm hexagon nut/socket wrench 3 . T-handle 90890-01326 4. Install: 9 oil seal 1 (with the fork seal driver weight 2 and fork seal driver attachment 3 ) Fork seal driver weight 90890-01184...
CHAS FRONT FORK 6. Fill: 9 front fork leg (with the specified amount of the recom- mended fork oil) Quantity (each front fork leg) 0.064 L(2.26 Imp.oz, 2.16 US oz) Recommended oil Fork oil 10W or equivalent Front fork leg oil level (from the top of the inner tube, with the inner tube fully compressed and without...
Page 268
CHAS FRONT FORK 3. Install: 9 front fender 10 Nm (1.0 m·kg, 7.2 ft·lb) 4. Install: 9 front wheel Refer to “FRONTWHEELAND BRAKE DISC”. 9 brake hose clamp 9 brake caliper assembly Refer to “FRONTBRAKE”. 7-38 http://www.motorcycle.in.th...
Page 270
CHAS HANDLEBAR EAS00666 REMOVING THE HANDLEBAR 1.Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. 2. Remove: 9 side cowlings (left and right) 9 front cowling 9 center panels Refer to “REMOVING THE FRONTCOWL- INGS”...
Page 271
CHAS HANDLEBAR 7. Remove: 9 lever holder 1 8. Remove: 9 throttle cable 1 9 throttle grip 2 9. Remove: 9 grip end 1 10. Remove: 9 handlebar grip 1 NOTE: Blow compressed air between the handlebar and the handlebar grip, and gradually push the grip off the handlebar.
CHAS HANDLEBAR 11. Remove: 9 relay 9 wire harness strap 1 12. Remove: 9 handlebar 1 9 washers 9 bushings 9 handlebar bracket 2 EAS00668 CHECKING THE HANDLEBAR 1. Check: 9 handlebar 1 Bends/cracks/damage → Replace. Do not attempt to straighten a bent handle- bar as this may dangerously weaken it.
Page 273
CHAS HANDLEBAR 3. Install: 9 bushings 9 washers 9 handlebar 23 Nm (2.3 m·kg, 17 ft·lb) 9 wire harness strap Refer to “CABLE ROUTING” in chapter 2. 4. Install: 9 handlebar grip a. Apply a thin coat of rubber adhesive onto the left end of the handlebar.
Page 274
CHAS HANDLEBAR 7. Install: 9 brake master cylinder 11 Nm (1.1 m·kg, 8.0 ft·lb) Refer to “FRONTBRAKE”. 8. Install: 9 plastic locking ties Refer to “CABLE ROUTING” in chapter 2. 9. Adjust: 9 throttle cable free play Refer to “ADJUSTING THE THROTTLE CABLE FREE PLAY”...
CHAS STEERING HEAD EAS00679 REMOVING THE LOWER BRACKET 1. Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. 2. Remove: 9 side cowlings (left and right) 9 center panels 9 inner panel Refer to “REMOVING THE FRONTCOWL- INGS”...
Page 277
CHAS STEERING HEAD 2. Check: 9 bearings 1 9 bearing races 2 Damage/pitting → Replace. 3. Replace: 9 bearings 9 bearing races a. Remove the bearing races from the steering head pipe with a long rod 1 and hammer. b. Remove the bearing race from the lower bracket with a floor chisel 2 and hammer.
CHAS STEERING HEAD EAS00683 INSTALLING THE STEERING HEAD 1. Lubricate: 9 upper bearing 9 lower bearing 9 bearing races Recommended lubricant Lithium-soap-based grease 2. Install: 9 lower ring nut 9 upper ring nut Refer to “CHECKING AND ADJUSTING THE STEERING HEAD” in chapter 3. 3.
CHAS REAR SHOCK ABSORBER ASSEMBLYAND SWINGARM EAS00691/EAS00702 REMOVING THE REAR SHOCK ABSORBER ASSEMBLIES AND SWINGARM 1. Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. NOTE: Place the vehicle on a suitable stand so that the rear wheel is elevated.
Page 281
CHAS REAR SHOCK ABSORBER ASSEMBLYAND SWINGARM 5. Remove: 9 rear shock absorber bolt (upper and lower) 9 washer 9 rear shock absorber nut (upper and lower) 9 washers 9 rear shock absorber assembly 3 6. Measure: 9 swingarm side play 9 swingarm vertical movement ∫...
CHAS REAR SHOCK ABSORBER ASSEMBLYAND SWINGARM EAS00707 CHECKING THE SWINGARM 1. Check: 9 swingarm Bends/cracks/damage → Replace. 2. Check: 9 swingarm pivot shaft Roll the pivot shaft on a flat surface. Bends → Replace. Do not attempt to straighten a bent pivot shaft.
CHAS DRIVE CHAIN AND SPROCKETS EAS00706 REMOVING THE DRIVE CHAIN AND SPROCKETS 1.Stand the vehicle on a level surface. Securely support the vehicle so that there is no danger of it falling over. NOTE: Place the vehicle on a suitable stand so that the rear wheel is elevated.
CHAS DRIVE CHAIN AND SPROCKETS 7. Straighten the lock washer tabs. 8. Remove: 9 driven sprocket nuts 9 driven sprocket bolts 9 lock washers 1 9 driven sprocket 2 EAS00710 CHECKING THE DRIVE CHAIN 1. Measure: 1 23 4 5 67 8 90 9 Measure the length of 15 links on the inner side a and outer side b of the pin and cal-...
CHECKING THE CONDITION OF THE BULBS ..........8-8 CHECKING THE CONDITION OF THE BULB SOCKETS .......8-9 IGNITION SYSTEM ....................8-10 CIRCUITDIAGRAM ..................8-10 TROUBLESHOOTING ..................8-11 ELECTRIC STARTING SYSTEM (T135SE)............8-15 CIRCUITDIAGRAM ..................8-15 TROUBLESHOOTING ..................8-16 STARTER MOTOR (T135SE) ................8-18 REMOVING THE STARTER MOTOR ..............8-19 DISASSEMBLING THE STARTER MOTOR .............8-19 CHECKING THE STARTER MOTOR ...............8-19...
ELEC CHECKING SWITCH CONTINUITY EAS00730 CHECKING SWITCH CONTINUITY Check each switch for continuity with the pocket tester. If the continuity reading is incorrect, check the wiring connections and if necessary, replace the switch. Never insert the tester probes into the cou- pler terminal slots .
ELEC CHECKING THE SWITCHES EAS00731 CHECKING THE SWITCHES Check each switch for damage or wear, proper connections, and also for continuity between the termi- nals. Refer to “CHECKING SWITCH CONTINUITY”. Damage/wear → Repair or replace. Improperly connected → Properly connect. Incorrect continuity reading →...
Page 298
ELEC CHECKING THE SWITCHES 1 Horn switch 2 Dimmer switch 3 Turn signal switch 4 Neutral switch 5 Rear brake light switch 6 Fuse 7 Start switch 8 Front brake light switch 9 Main switch http://www.motorcycle.in.th...
ELEC CHECKING THE BULBS AND BULB SOCKETS EAS00732 CHECKING THE BULBS AND BULB SOCKETS Check each bulb and bulb socket for damage or wear, proper connections, and also for continu- ity between the terminals. Damage/wear → Repair or replace the bulb, bulb socket or both.
ELEC CHECKING THE BULBS AND BULB SOCKETS CHECKING THE CONDITION OF THE BULBS The following procedure applies to all of the bulbs. 1. Remove: 9 bulb Since the headlight bulb gets extremely hot, keep flammable products and your hands away from the bulb until it has cooled down. Be sure to hold the socket firmly when removing the bulb.
ELEC CHECKING THE BULBS AND BULB SOCKETS CHECKING THE CONDITION OF THE BULB SOCKETS The following procedure applies to all of the bulb sockets. 1. Check: 9 bulb socket (for continuity) (with the pocket tester) No continuity → Replace. Pocket tester 90890-03112 NOTE: Check each bulb socket for continuity in the...
ELEC IGNITION SYSTEM EAS00736 EAS00739 TROUBLESHOOTING 2. Battery 9 Check the condition of the battery. The ignition system fails to operate (no spark or intermittent spark). Refer to “CHECKING AND CHARGING THE BATTERY” in chapter 3. Check: 1. fuse Minimum open-circuit voltage 2.
Page 304
ELEC IGNITION SYSTEM EAS00742 EAS00744 4. Ignition spark gap 5. Spark plug cap resistance 9 Disconnect the spark plug cap from the 9 Remove the spark plug cap from the spark spark plug. plug lead. 9 Connect the ignition checker 1 as shown. 9 Connect the pocket tester (“...
Page 305
ELEC IGNITION SYSTEM EAS00746 EAS00748 6. Ignition coil resistance 7. Pickup coil resistance 9 Disconnect the ignition coil connector from 9 Disconnect the pickup coil coupler from the the ignition coil terminal. wire harness. 9 Connect the pocket tester ( Ω⋅ 1) to the igni- 9 Connect the pocket tester ( Ω⋅...
Page 306
ELEC IGNITION SYSTEM EAS00754 9. Wiring 9 Check the entire ignition system wiring. Refer to “CIRCUITDIAGRAM”. 9 Is the ignition system wiring properly con- nected and without defects? Properly connect or Replace the C.D.I. repair the ignition unit. system wiring. 8-14 http://www.motorcycle.in.th...
ELEC ELECTRIC STARTING SYSTEM (T135SE) EAS00757 EAS00739 TROUBLESHOOTING 2. Battery 9 Check the condition of the battery. The starter motor fails to turn. Refer to “CHECKING AND CHARGING THE Check: BATTERY” in chapter 3. 1. fuse Minimum open-circuit voltage 2. battery 12.8 V or more at 20 °...
Page 309
ELEC ELECTRIC STARTING SYSTEM (T135SE) EAS00761 EAS00764 4. Starter relay 6. Start switch 9 Remove the starter relay from the starter 9 Check the start switch for continuity. relay coupler on the wire harness. Refer to “CHECKING THE SWITCHES”. 9 Connect the pocket tester ( Ω⋅...
ELEC STARTER MOTOR (T135SE) EASF0061 STARTER MOTOR (T135SE) 1 Starter motor yoke 2 Armature 3 Brush set 4 Starter motor lead 5 Starter motor front cover 8-18 http://www.motorcycle.in.th...
ELEC STARTER MOTOR (T135SE) REMOVING THE STARTER MOTOR 1. Remove: 9 breather pipe 1 2. Remove: 9 starter motor 1 3. Remove: 9 starter motor lead 1 DISASSEMBLING THE STARTER MOTOR 1. Remove: 9 starter motor front cover bolts (with washers)
Page 312
ELEC STARTER MOTOR (T135SE) 2. Measure: 9 commutator diameter a Out of specification → Replace the starter motor. Commutator wear limit 16.6 mm (0.65 in) 3. Measure: 9 mica undercut a Out of specification → Scrape the mica to the proper measurement with a hacksaw blade that has been grounded to fit the commutator.
ELEC STARTER MOTOR (T135SE) 5. Measure: 9 brush length a Out of specification → Replace the brush- es as a set. Brush length wear limit 3.5 mm (0.14 in) 6. Measure: 9 brush spring force Out of specification → Replace the brush springs as a set.
ELEC CHARGING SYSTEM EAS00774 EAS00739 TROUBLESHOOTING 2. Battery 9 Check the condition of the battery. The battery cannot be charged. Refer to “CHECKING AND CHARGING THE Check: BATTERY” in chapter 3. 1. fuse Minimum open-circuit voltage 2. battery 12.8 V or more at 20 ° C 3.
Page 316
ELEC CHARGING SYSTEM EAS00775 EAS00776 3. Charging voltage 4. Charging coil resistance 9 Connect the engine tachometer to the spark 9 Disconnect the stator coil coupler from the plug lead. wire harness. 9 Connect the pocket tester (DC 20 V) to the 9 Connect the pocket tester ( Ω⋅...
ELEC LIGHTING SYSTEM EAS00781 EAS00776 TROUBLESHOOTING 1. Lighting coil resistance 9 Disconnect the stator coil coupler from the Any of the following fail to light: head- light, high beam indicator light, taillight, wire harness. 9 Connect the pocket tester ( Ω⋅...
ELEC LIGHTING SYSTEM EAS00788 3. Voltage CHECKING THE LIGHTING SYSTEM 9 Connect the pocket tester (AC 20 V) to the 1. The headlight and the high beam indicator headlight and high beam indicator light con- light fail to come on. nectors as shown.
Page 320
ELEC LIGHTING SYSTEM EAS00789 EAS00790 2. The meter light fails to come on. 3. The tail/brake light fails to come on. 1. Meter light bulb and socket 1. Tail/brake light bulb and socket 9 Check the meter light bulb and socket for 9 Check the tail/brake light bulb and socket for continuity.
Page 321
ELEC LIGHTING SYSTEM 4. The auxiliary light fails to come on. 1. Meter light bulb and socket 9 Check the meter light bulb and socket for continuity. Refer to “CHECKING THE BULBS AND BULB SOCKETS”. 9 Are the meter light bulb and socket OK? Replace the auxil- iary light bulb, socket or both.
ELEC SIGNALING SYSTEM EAS00793 SIGNALING SYSTEM CIRCUIT DIAGRAM 8-30 http://www.motorcycle.in.th...
Page 323
ELEC SIGNALING SYSTEM 1 Main switch 3 Fuse 4 Battery u Front brake light switch Rear brake light switch o Turn signal relay p Horn Horn switch Turn signal switch g Tail/brake light h Rear turn signal light Front turn signal light Fuel gauge x Fuel sender Neutral switch...
ELEC SIGNALING SYSTEM EAS00794 EAS00739 TROUBLESHOOTING 2. Battery 9 Check the condition of the battery. Any of the following fail to light: turn sig- nal light, brake light or an indicator light. Refer to “CHECKING AND CHARGING THE The horn fails to sound. BATTERY”...
ELEC SIGNALING SYSTEM EAS00796 3. Horn CHECKING THE SIGNALING SYSTEM 9 Disconnect the pink connector at the horn 1. The horn fails to sound. terminal. 9 Connect a jumper lead 1 to the horn termi- 1. Horn switch 9 Check the horn switch for continuity. nal and ground the jumper lead.
Page 326
ELEC SIGNALING SYSTEM EAS00797 3. Voltage 2. The tail/brake light fails to come on. 9 Connect the pocket tester (DC 20 V) to the 1. Tail/brake light bulb and socket tail/brake light coupler (wire harness side) as 9 Check the tail/brake light bulb and socket for shown.
Page 327
ELEC SIGNALING SYSTEM EAS00799 3. Voltage 3. The turn signal light, turn signal indicator 9 Connect the pocket tester (DC 20 V) to the light or both fail to blink. turn signal relay coupler as shown. 1. Turn signal indicator light bulb and socket →→...
Page 328
ELEC SIGNALING SYSTEM 5. Voltage 4. Voltage 9 Connect the pocket tester (DC 20 V) to the 9 Connect the pocket tester (DC 20 V) to the turn signal light coupler (wire harness side) turn signal relay coupler as shown. →→...
Page 329
ELEC SIGNALING SYSTEM EAS00801 9 Set the main switch to “ON”. 9 Set the turn signal switch to “ 4 ” or “ 6 ”. 4. The gear position indicator lights fail to 9 Measure the voltage (DC 12 V) of the come on.
Page 330
ELEC SIGNALING SYSTEM EAS00804 3. Voltage 5. The fuel level gauge fails to operate. 9 Connect the pocket tester (DC 20 V) to the 1. Fuel sender meter assembly coupler (wire harness side) 9 Remove the fuel sender from the fuel tank. as shown.
Page 331
ELEC SIGNALING SYSTEM 2. Voltage 3. Fuel level gauge 9 Set the main switch to “ON”. 9 Connect the pocket tester (DC 20 V) to the 9 Move the float up 1 or down 2 . meter assembly coupler (wire harness side) 9 Check that the fuel level gauge needle as shown.
ELEC COOLING SYSTEM EAS00739 TROUBLESHOOTING 2. Battery 9 The radiator fan motor fails to turn. 9 Check the condition of the battery. Refer to “CHECKING AND CHARGING THE Check: BATTERY” in chapter 3. 1. fuse Minimum open-circuit voltage 2. battery 12.8 V or more at 20 °...
Page 334
ELEC COOLING SYSTEM 4. Radiator fan motor 5. Radiator fan motor relay 9 Disconnect the radiator fan motor coupler 9 Disconnect the radiator fan motor relay cou- from the wireharness. pler. 9 Connect the battery (12 V) as shown. 9 Connect the pocket tester to the radiator fan →→...
Page 335
ELEC COOLING SYSTEM 6. Thermo sensor 9 Remove the thermo sensor from the cylinder. 9 Connect the digital circuit tester ( Ω⋅ 100) to the thermo switch 1 as shown. 9 Immerse the thermo sensor in a container filled with coolant 2 . NOTE: Make sure that the thermo sensor terminals do not get wet.
ELEC SELF-DIAGNOSIS SELF-DIAGNOSIS The T135SE/S features a self-diagnosing system for following circuit (-s). 1. Throttle position sensor (TPS) 2. Thermo sensor 1. ENGINE TROUBLE INDICATOR LIGHT When the main switch is turned to “ON”, the following items are monitored and the condition codes are displayed on the coolant temperature warning indicator light (irrespective of whether the engine is run- ning or not).
Page 337
ELEC SELF-DIAGNOSIS Display order on the coolant temperature warning indicator light When one item being monitored Fault Condition code å ∫ Repetition å ∫ Repetition å ∫ Repetition 1 3 seconds å Light on 2 1 second ∫ Light off 3 1.5 seconds 4 0.5 seconds 5 0.5 seconds...
Page 338
ELEC SELF-DIAGNOSIS TROUBLESHOOTING 1. Wire harness The coolant temperature warning indicator 9 Check the wire harness for continuity. light starts to display the self-diagnosis Refer to “CIRCUITDIAGRAM”. sequence. 9 Is the wire harness OK? Check: 1. throttle position sensor 2. thermo sensor Repair or replace the NOTE: 9 Before troubleshooting, remove the following...
Page 339
ELEC SELF-DIAGNOSIS 2. Thermo sensor 2. Thermo sensor CIRCUITDIAGRAM 9 Check the thermo sensor. Refer to “COOLING SYSTEM”. 9 Is the thermo sensor OK? W/Y Y (BLACK) (BLACK) Replace the C.D.I. Replace the thermo unit. sensor. (BLACK) B/L Br 0 C.D.I. unit t Thermo sensor 1.
TRBL TROUBLESHOOTING SHTG EASF0062 TROUBLESHOOTING TROUBLESHOOTING ELECTRICALSYSTEM *CHECK ALLWIRES CONNECTIONS IGNITION COIL(see page 8-13) MAIN SWITCH (see page 8-5) 8 Primary or secondary windings 8 Main switch is shorted are broken or faulty 8 Spark plug wire is faulty 8 Spark plug cap is faulty C.D.I.