Daelim S4 50cc Service Manual - Mojo

STARTING SYSTEMTROUBLE SHOOTINGStarter motor does not rotate (No response from starter motor).● Check to see if the fuse is burned out.● Check to turn on the lamp of stop switch.With the main switch turned to ON, squeezethe brake lever. In this state push the starterbutton and check if a clicking noise then anoperating noise is emitted from the starterrelay.CLICKRemove the starter moter " " wire, connectin to the battery " " terminal and check to seeif the starter motor rotates (because a largeamount of current flows in this test, do notuse thin wire).NO CLICKROTATE● Incorrect startermotor connectionDOES NOT ROTATE● Incorrect starter motorRemove the coupler from the starter replayand inspect the relay coil ground wire.NO CONTINUITY● Faulty starter switch.● Incorrect connection with the switchterminals or harness disconnection.CONTINUITYCheck the starter relay voltage in the starterrelay coupler with the coupler connected.VOLTAGE MEASUREDNO VOLTAGE● Damaged main or starter switch.● Incorrect connection with coupler connector.● Disconnection in starter switch wire.● Faulty brake stop switch.Check the operation of the starter relay.ABNORMALNORMAL● Loose or poor contact at starter relay switchconnector.● Faulty starter relay switch.Starter motor rotates but crank shaft does't● Incorrect starting clutch.● Incorrect starter gear.● Starting clutch slip.Starter motor operates in free-wheel● Internal fault of starter motor.● Driven gear slips.Weak rotational power in starter motor● Battery is insufficiently charged.● Incorrect connection of battery terminal cord.● Damaged starter motor.● Ground wire is connected incorrectly● Brush is damaged or worn.Starter motor and crank shaft rotate but dosenot turn engine over.● Incorrect starting system.● Faulty engine.