Electrical - Suzuki AN650 2002 Service Manual

11-12 SERVICING INFORMATION

ELECTRICAL

Complaint
No sparking or poor
sparking.
Spark plugs soon
become fouled with
carbon.
Spark plugs become
fouled too soon.
Spark plug electrodes
overheat or burn.
Generator does not
charge.
Generator does
charge, but charging
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 camshaft position
sensor.
2. Defective spark plugs.
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 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. Overheated the engine.
3. Loose spark plugs.
4. Too lean mixture.
1. Open- or short-circuited lead wires, or loose lead con-
nections.
2. Short-circuited, grounded or open generator coils.
3. Short-circuited or panctured regulator/rectifiers.
1. Lead wires tend to get short- 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 resistor element in the regulator/
rectifier.
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 commu-
tator.
4. Defective starter relay or starter interlock switch.
5. Defective main fuse.
Remedy
Replace.
Replace.
Replace.
Replace.
Replace.
Check and repair.
Consult 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.
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 con-
nection.
Repair or replace.
Replace.
Replace.
Repair or replace.
Replace.
Repair or replace.
Replace.
Replace.