Analysis Of Starting Motor - ZONGSHEN ZS250GY-3(EFI) Maintenance Manual

Eletric horn cannot make sound or make poor sound.
Turning light illuminates dimly.
The power of storage battery is
not enough or the connecting stor-
a g e b a t t e r y l e a d h a s p o o r
connection.
Remove the connecting component of starting relay from vehicle cable.
Connect the anode/cathode of storage battery with two down-leads of start-
ing relay coil with two leads.
After connection,starting motor still cannot run and
the sound at the beginning of electric starting
cannot be heard.
The coil of starting relay has open
c ir cu it or s h or t ci r cu it.
[1]Check whether the connecting point of inner clutch switch has bad connection.
[2]Check whether the connecting point of starting button has bad connection.
[3]Check whether the circuit of inner electric starting system has open circuit or
short circuit.
Electric horn cannot make sound or make weak sound.
Turning light illuminates dimly.
The power of storage battery is not
enough or the lead of connecting stor-
age battery has poor connection.
Dismantle the connecting lead of starting motor from starting
relay and the connecting lead of storage battery.Press start-
ing button.When starting relay makes sound,measure the resis-
tance between the battery connection of starting relay and
connection of starting motor with ohmic meter.Check whether
the resistance gets through.
Yes
Measure the resistance of motor with
ohmic meter and check whether it gets
64

2.3 Analysis of starting motor

S t a r t i n g m o t o r
doesn't run.
Turn on ignition switch and press the horn button or turn on/
off turning light switch.
Press starting button and the
sound at the beginning of elec-
tric starting cannot be heard.
After connection,starting motor can
run normally.
Check the circuit of electric con-
trol system.
2.4 Analysis of starting motor
The running of starting
motor is weak.
Turn on ignition switch and press horn button or turn on/off
turning light switch.
No
Electric horn makes rotund sound.Turning light illuminates brightly.
Make short circuit of the connnection of battery
on starting relay and the connection of starting
motor with screwdriver and thick lead.
After short circuit connection,
starting motor can run
normally.
Disassemble starting motor and check as follows:
[1]Check whether carbon brush is worn.
[2]Check whether the spring of carbon brush
The connecting
breaks off or its elasticity is poor.
poi nt o f s ta rt-
[3]Check whether armature comb is worn.
ing relay is dam-
[4]Check whether armature coil has open circuit
aged or ablates.
o r sh or t c ir cu it.
Electric horn makes rotund sound.Turning light illuminates brightly.
Check whether the lead end from starting relay to starting motor has poor
connection.
No
The connecting point of starting re-
lay is damaged or ablates.
Press starting button and the
sound at the beginning of elec-
tric starting can be heard.
After short circuit
connection,starting motor
still cannot run.
Yes
C h e c k a n d
deal with it.