Electrical - Suzuki GSX1200 1999 Service Manual

7-8 SERVICING INFORMATION

ELECTRICAL

Complaint
No sparking or poor
sparking.
Spark plug is wet or
quickly becomes
fouled with carbon.
Spark plug quickly
becomes fouled with
oil or carbon.
Spark plug electrodes
overheat or burn.
Generator does not
charge.
Generator charges
but charging rate is
below the
specifications.
Generator
overcharges.
Unstable charging.
Starter button does
not work.
Symptom and possible causes
1. Defective ignition coil.
2. Defective spark plug.
3. Defective signal generator.
4. Defective ignitor.
1. Excessively rich air/fuel mixture.
2. Excessively high idling speed.
3. Incorrect gasoline.
4. Dirty air cleaner element.
5. Incorrect spark plug. (cold type).
1. Worn piston ring.
2. Worn piston.
3. Worn cylinder.
4. Excessive valve stem to valve guide clearance.
5. Worn valve stem oil seal.
1. Incorrect spark plug. (hot type).
2. Overheated engine.
3. Loose spark plug.
4. Excessively lean air/fuel mixture.
1. Open or short in lead wires or loose lead
connections.
2. Shorted, grounded or open generator coil.
3. Shorted or punctured IC regulator or rectifier.
1. Lead wires tend to get shorted or open-circuited
or loosely connected at terminal.
2. Grounded or open-circuited stator coils or
generator.
3. Defective IC regulator or rectifier.
4. Defective battery cell plates.
1. Internal short-circuit in the battery.
2. Damaged or defective IC regulator or rectifier.
3. Poorly grounded IC regulator.
1. Lead wire insulation frayed due to vibration,
resulting in intermittent shorting.
2. Internally shorted generator.
3. Defective IC regulator or rectifier.
1. Run down battery.
2. Defective switch contact.
3. Brushes do not seat properly on the commutator in
the starter motor.
4. Defective starter relay/starter interlock switch.
Remedy
Replace.
Replace.
Replace.
Replace.
Adjust carburetor.
Adjust carburetor.
Change.
Clean or replace.
Change to hot type spark
plug.
Replace.
Replace.
Rebore or replace.
Replace.
Replace.
Change to cold type
spark plug.
Tune-up.
Tighten.
Adjust carburetor.
Repair, replace or
connect properly.
Replace.
Replace.
Repair or retighten.
Replace.
Replace.
Replace battery.
Replace battery.
Replace.
Clean and tighten
ground connection.
Repair or replace.
Replace.
Replace.
Recharge or replace.
Replace.
Repair or replace.
Replace.