Electrical - Suzuki GSX1400 Service Manual

8-12 SERVICING INFORMATION

ELECTRICAL

Complaint
No sparking or poor
sparking.
Spark plug soon
become fouled with
carbon.
Spark plugs become
fouled too soon.
Spark plug electrod-
es overheat or burn.
Generator does not
charge.
Generator does
charge, but charging
rate is below the
specification.
Generator
overcharges.
Unstable charging.
Starter button is not
effective.
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Symptom and possible causes
1. Defective ignition coil or plug cap or camshaft
position sensor.
2. Defective spark plugs.
3. Defective crankshaft position sensor.
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 element in air cleaner.
5. Too cold spark plugs.
1. Worn piston rings.
2. Worn piston or cylinders.
3. Excessive clearance of valve stems in valve
guides.
4. Worn stem oil seal.
1. Too hot spark plugs.
2. Loose spark plugs.
3. Too lean mixture.
1. Open or short lead wires, or loose lead
connections.
2. Shorted, grounded or open generator coils.
3. Shorted or punctured regulator/rectifiers.
1. Lead wires tend to get shorted or open-circuited
or loosely connected at terminals.
2. Grounded or open-circuited stator coils or
generator.
3. Defective regulator/rectifier.
4. Defective cell plates in the battery.
1. Internal short-circuit in the battery.
2. Damaged or defective regulator/rectifier.
3. Poorly grounded regulator/rectifier.
1. Lead wire insulation frayed due to vibration,
resulting in intermittent shorting.
2. Internally shorted generator.
3. Defective regulator/rectifier.
1. Run down battery.
2. Defective switch contacts.
3. Not seating properly brushes on commutator in
starter motor.
4. Defective starter relay/starter interlock switch.
5. Defective main fuse.
Remedy
Replace.
Replace.
Replace.
Replace.
Replace.
Check and repair.
Inspect FI system.
Adjust fast idle or
throttle stop screw.
Change.
Clean or replace.
Replace with hot type
plugs.
Replace.
Replace.
Replace.
Replace.
Replace with cold
type plugs.
Retighten.
Inspect FI system.
Repair or replace or
retighten.
Replace.
Replace.
Repair or retighten.
Replace.
Replace.
Replace the battery.
Replace the battery.
Replace.
Repair, replace, or
connect properly.
Repair or replace.
Replace.
Replace.
Repair or replace.
Replace.
Repair or replace.
Replace.
Replace.