1991 - 2000MOTORCYCLE

SERVICE MANUAL

Model : CY50B, CY50D, CY50E, CY50F,CY50G, CY50H, CY50J, CY50M, SH50G

3SA281972000 *3SA281972000*

murad

Yamaha Motor Canada Ltd.480 Gordon Baker RoadToronto, ON M2H 3B4

SERVICE MANUAL FOR CY50BNOTICETABLE OF CONTENTSGENERAL INFORMATIONSCOOTER IDENTIFICATIONVEHICLE IDENTIFICATION NUMBERENGINE SERIAL NUMBER

IMPORTANT INFORMATIONPREPARATION FOR REMOVAL AND DISASSEMBLYALL REPLACEMENT PARTSGASKETS, OIL SEALS, AND O-RINGSLOCK WASHERS/PLATES AND COTTER PINSBEARINGS AND OIL SEALSCIRCLIPS

SPECIAL TOOLSFOR TUNE-UPFOR ENGINE SERVICEFOR CHASSIS SERVICEFOR ELECTRICAL COMPONENTS

SPECIFICATIONSGENERAL SPECIFICATIONSMAINTENANCE SPECIFICATIONSENGINECHASSISELECTRICAL

GENERAL TORQUE SPECIFICATIONSDEFINITION OF UNITSLUBRICATION POINTS AND LUBRICANT TYPEENGINECHASSIS

CABLE ROUTING

PERIODIC INSPECTION AND ADJUSTMENTINTRODUCTIONPERIODIC MAINTENANCE/LUBRICATIONTAIL COVER AND FOOTREST BOARDREMOVALINSTALLATION

FRONT FENDER, AND FRONT PANELREMOVALINSTALLATION

HANDLEBAR COVERSREMOVALINSTALLATION

ENGINEENGINE IDLE SPEED ADJUSTMENTTHROTTLE CABLE FREE PLAY ADJUSTMENTAUTOLUBE PUMP AIR BLEEDINGSPARK PLUG INSPECTIONCOMPRESSION PRESSURE MEASUREMENTENGINE OIL LEVEL INSPECTIONTRANSMISSION OIL REPLACEMENTAIR CLEANER ELEMENT CLEANINGFUEL COCK CLEANINGFUEL LINE INSPECTIONCARBURETOR JOINT INSPECTIONEXHAUST SYSTEM INSPECTION

CHASSISFRONT BRAKE LEVER FREE PLAY CHECKREAR BRAKE LEVER FREE PLAY CHECKBRAKE SHOE INSPECTIONSTEERING ADJUSTMENTTIRE INSPECTIONWHEEL INSPECTIONCABLE INSPECTIONLUBRICATIONFRONTFORK INSPECTIONREAR SHOCK ABSORBER INSPECTION

ELECTRICALBATTERY INSPECTIONFUSE INSPECTIONHEADLIGHT BEAM ADJUSTMENTHEADLIGHT BULB REPLACEMENT

ENGINE OVERHAULENGINE REMOVALTAIL COVER AND FOOTREST BOARDCARBURETOR TOP COVERMUFFLER ASSEMBLYCABLES, LEADS AND PIPESENGINE REMOVAL

ENGINE DISASSEMBLYCARBURETORREAR WHEELCENTER STANDCYLINDER HEAD AND CYLINDERPISTON PIN AND PISTONKICK STARTERPRIMARY SHEAVESECONDARY SHEAVESTARTER SYSTEMTRANSMISSIONC.D.I. MAGNETOAUTOLUBE PUMPCRANKCASE AND CRANKSHAFT

INSPECTION AND REPAIRCYLINDER HEADCYLINDER AND PISTONPISTON RINGSPISTON PIN AND PISTON PIN BEARINGKICK STARTERTRANSMISSIONAUTOLUBE PUMPCRANKSHAFTPRIMARY SHEAVESECONDARY SHEAVEV-BELTSTARTER CLUTCH AND GEARS

ENGINE ASSEMBLY AND ADJUSTMENTCRANKSHAFT AND CRANKCASEAUTOLUBE PUMPC.D.I. MAGNETOTRANSMISSIONSTARTER SYSTEMSECONDARY SHEAVEPRIMARY SHEAVEKICK STARTERPISTON PIN AND PISTONCYLINDER AND CYLINDER HEADREMOUNTING ENGINE

CARBURETIONAUTO CHOKE SYSTEMCONSTITUENTSWIRING SCHEMATICOPERATION

CARBURETORSECTION VIEWREMOVALDISASSEMBLYINSPECTIONASSEMBLYINSTALLATIONAUTO CHOKE UNIT CHECK

FUEL COCKINSPECTION

REED VALVEREMOVALINSPECTIONINSTALLATION

CHASSISFRONT WHEELREMOVALINSPECTIONASSEMBLYINSTALLATION

REAR WHEELREMOVALINSPECTIONASSEMBLYINSTALLATION

HANDLEBAR, STEERING AND FRONT FORKREMOVALDISASSEMBLYINSPECTIONASSEMBLY AND INSTALLATION

REAR SHOCK ABSORBERREMOVALINSPECTIONINSTALLATION

ELECTRICALCY50B CIRCUIT DIAGRAMELECTRICAL COMPONENTSCHECKING OF CONNECTIONSCHECKING OF SWITCHESSWITCH CONNECTION AS SHOWN IN MANUALCHECKING SWITCH FOR TERMINAL CONNECTION

CHECKING OF BULBSKINDS OF BULBSCHECKING BULB CONDITION

IGNITION AND STARTING SYSTEMCIRCUIT DIAGRAMIGNITION AND STARTING SYSTEMIGNITION AND STARTING CIRCUIT SYSTEMINSPECTION PARTS

ELECTRICAL STARTING SYSTEMSTARTER MOTOR CHECK

CHARGING SYSTEMCIRCUIT DIAGRAMTROUBLESHOOTING

LIGHTING SYSTEMCIRCUIT DIAGRAMTROUBLESHOOTING

SIGNAL SYSTEMCIRCUIT DIAGRAMTROUBLESHOOTINGSIGNAL SYSTEM CHECK

METER ASSEMBLYAUTO CHOKECIRCUIT DIAGRAMTROUBLESHOOTING

TROUBLESHOOTINGSTARTING FAILURE /HARD STARTINGFUEL SYSTEMELECTRICAL SYSTEMCOMPRESSION SYSTEM

POOR IDLE SPEED PERFORMANCEPOOR IDLE SPEED PERFORMANCE

POOR MEDIUM AND HIGH SPEED PERFORMANCEFUEL SYSTEMELECTRICAL SYSTEMCOMPRESSION SYSTEM

FAULTY AUTOMATIC {V-BELT TYPE)SCOOTER DOES NOT MOVE WHILE ENGINE IS OPERAT!NGCLUTCH-OUT FAILUREPOOR STANDING START (LOW CLIMBING ABILITY)POOR ACCELERATION (POOR HIGH SPEED)

IMPROPER KICKINGSLIPPINGHARD KICKINGKICK CRANK NOT RETURNING

FAULTY BRAKEPOOR BRAKING EFFECTMALFUNCTION

INSTABLE HANDINGINSTABLE HANDING

FAULTY SIGNAL AND LIGHTING SYSTEMHEADLIGHT DARKBULB BURNT OUTFLASHER DOES NOT LIGHTFLASHER KEEPS ONFLASHER WINKS SLOWERFLASHER WINKS QUICKERHORN IS INOPERATIVE

OVERHEATINGOVERHEATING

CY50B WIRING DIAGRAM