Suzuki drz 400E Service Manual

8-8 SERVICING INFORMATION
ELECTRICAL
No sparking or poor
sparking.
1. Defective ignition coil.
2. Defective spark plug.
3. Defective generator.
4. Defective CDI unit.
Replace.
Replace.
Replace.
Replace.
Spark plug is wet or
quickly becomes
fouled with carbon.
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).
Adjust carburetor.
Adjust carburetor.
Change.
Clean or replace.
Change to hot type spark
plug.
Spark plug quickly be-
comes fouled with oil
or carbon.
1. Worn piston ring.
2. Worn piston.
3. Worn cylinder.
4. Excessive valve-stem-to-valve-guide clearance.
5. Worn valve stem oil seal.
Replace.
Replace.
Replace.
Replace.
Replace.
Spark plug electrodes
overheat or burn.
1. Incorrect spark plug (hot type).
2. Overheated engine.
3. Loose spark plug.
4. Excessively lean air/fuel mixture.
Change to cold type spark
plug.
Tune-up.
Tighten.
Adjust carburetor.
Generator does not
charge.
1. Open or short in lead wires, or loose lead connections.
2. Shorted, grounded, or open generator coil.
3. Shorted or punctured regulator/rectifier.
Repair, replace, or connect
properly.
Replace.
Replace.
Generator charges
but charging rate is
below the specifica-
tions.
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 regulator/rectifier.
4. Defective battery cell plates.
Repair or tighten.
Replace.
Replace.
Replace battery.
Generator over-
charges.
1. Internal short-circuit in the battery.
2. Damaged or defective regulator/rectifier.
3. Poorly grounded regulator/rectifier.
Replace battery.
Replace.
Repair, replace, or connect
properly.
Unstable charging.
1. Lead wire insulation frayed due to vibration, resulting
in intermittent shorting.
2. Internally shorted generator.
3. Defective regulator/rectifier.
Repair or replace.
Replace.
Replace.
Starter button does
not work. (DR-Z400E)
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.
5. Wiring connections loose or disconnected.
Recharge or replace.
Replace.
Repair or replace.
Replace.
Tighten or repair.
Complaint Symptom and possible causes Remedy

Suzuki drz 400E Specifications

General

Brand	Suzuki
Model	drz 400E
Category	Motorcycle
Language	English