DAELIM S4 50cc Service Manual page 170

STARTING SYSTEM
TROUBLE SHOOTING
Starter 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, squeeze
the brake lever. In this state push the starter
button and check if a clicking noise then an
operating noise is emitted from the starter
relay.
NO CLICK
Remove the coupler from the starter replay
and inspect the relay coil ground wire.
CONTINUITY
Check the starter relay voltage in the starter
relay coupler with the coupler connected.
VOLTAGE MEASURED
Check the operation of the starter relay.
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.
NO CONTINUITY
ABNORMAL
CLICK
● Incorrect starter
● Faulty starter switch.
● Incorrect connection with the switch
NO VOLTAGE
● Damaged main or starter switch.
● Incorrect connection with coupler connector.
● Disconnection in starter switch wire.
● Faulty brake stop switch.
NORMAL
● Loose or poor contact at starter relay switch
● Faulty starter relay switch.
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 dose
not turn engine over.
● Incorrect starting system.
● Faulty engine.
Remove the starter moter " " wire, connect
in to the battery " " terminal and check to see
if the starter motor rotates (because a large
amount of current flows in this test, do not
use thin wire).
DOES NOT ROTATE
ROTATE
● Incorrect starter motor
motor connection
terminals or harness disconnection.
connector.