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7. Electrical system
1) Starter
2) Generator
Cause Remedies
1. Starter is out of running
⑴ Connecting wire broken or poor contact
of connecting wire
Weld or tighten the nuts on contacts
⑵ Low voltage of battery Recharge or replace battery
⑶ Poor contact of brush and commutator
Clean surface of commutator or replace
brush
⑷ Inner short or broken circuit of starter Repair after checking
2. Starter can run idle, but fails to start
engine
⑴ Poor contact of brush and commutator Clean commutator contact face
⑵ Surface of commutator burned out or
stained with oil dust
Repair it well with abrasive cloth or clean oil
dust out
⑶ Poor contact of connectors Clean or tightly screw contact point
⑷ Poor contact of solenoid switch Check and repair solenoid switch
⑸ Battery insufficient or voltage too low ⑸ Recharge battery after checking
3. Starter runs with starting pinion
unmeshed and pinions knocked at each
other. Too small travel of armature
Screw the connecting screw of armature in
for 2-3 rings
Cause Remedies
1. Generator fails to generate current
⑴ Connecting wires loose, broken, short
circuit or wrongly connected
Repair well after checking
⑵ Diode damaged, wires broken or have
short circuit
Replace it or repair it
⑶ Winding of rotor or stator broken, have
short circuit or earthing
Repair or replace
⑷ Regulated voltage of regulator too low Adjust the voltage a bit higher
⑸ Regulator terminal burnt out or inside
wirin
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