Electrical - Suzuki AN400 Service Manual

ELECTRICAL

Complaint
No sparking or poor
sparking.
Spark plug soon
become fouled with
carbon.
Spark plug become
fouled too soon.
Spark plug elec-
trodes overheat or
burn.
Generator does not
charge.
Generator does
charge, but charg-
ing rate is below the
specification.
Generator over-
charges.
Unstable charging.
Starter button is not
effective.
Symptom and possible causes
1. Defective ignition coil/plug cap or crankshaft posi-
tion sensor.
2. Defective spark plug.
3. Defective generator.
4. Defective ECM.
5. Defective tip over sensor.
6. Open-circuited wiring connections.
1. Mixture too rich.
2. Idling speed set too high.
3. Incorrect gasoline.
4. Dirty air cleaner element.
5. Too cold spark plug.
1. Worn piston rings.
2. Worn piston or cylinder.
3. Excessive clearance of valve stems in valve guides.
4. Worn stem oil seals.
1. Too hot spark plug.
2. Overheated the engine.
3. Loose spark plug.
4. Too lean mixture.
1. Open- or short-circuited lead wires, or loose lead
connections.
2. Short-circuited, grounded or open generator coil.
3. Short-circuited or panctured regulator/rectifier.
1. Lead wires tend to get short- or open-circuited or
loosely connected at terminals.
2. Grounded or open-circuited startor coil or generator.
3. Defective regulator/rectifier.
4. Defective cell plates in the battery.
1. Internal short-circuit in the battery.
2. Damaged or defective resistor element in the
regu-lator/recitifier.
3. Poorly grounded regulator/rectifier.
1. Lead wire insulation frayed due to vibration,
resulting in intermittent short-circuiting.
2. Internally short-circuited generator.
3. Defective regulator/rectifier.
1. Run down battery.
2. Defective switch contacts.
3. Brushes not seating properly on starter motor
commutator.
4. Defective starter relay or starter interlock switch.
5. Defective main fuse.
SERVICING INFORMATION 9-11
Remedy
Replace.
Replace.
Replace.
Replace.
Replace.
Check and repair.
Consult FI system.
Adjust idle adjust screw or
repalce the IAC valve.
Change.
Clean or replace.
Replace with hot type plug.
Replace.
Replace.
Replace.
Replace.
Replace with cold type
plug.
Tune up.
Retighten.
Consult FI system.
Repair or replace or
retighten.
Replace.
Replace.
Repair or retighten.
Replace.
Replace.
Replace the battery.
Replace the battery.
Replace.
Clean and tighten ground
connection.
Repair or replace.
Replace.
Replace.
Repair or replace.
Replace.
Repair or replace.
Replace.
Replace.