Electrical - Suzuki RV125 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 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
2. Defective spark plug
3. Defective generator
4. Defective ignitor unit
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-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/starter interlock switch.
5. Defective main fuse
Remedy
Replace.
Replace.
Replace.
Replace.
Adjust carburetor.
Adjust carburetor.
Change.
Clean or replace.
Change to standard spark
plug.
Replace.
Replace.
Replace.
Replace.
Replace.
Change to cold type spark
plug.
Turn-up.
Tighten.
Adjust carburetor.
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.