Electrical - Suzuki VZ800 Service Manual

ELECTRICAL

Complaint
No sparking or poor
sparking
Spark plug soon
become fouled with
carbon.
Spark plug become
fouled too soon.
Spark plug elec-
trodes overheat or
burn.
Generator does not
charge.
Generator does
charge, but charg-
ing rate is below the
specification.
Generator
overcharges
Unstable charging
Starter button is not
effective.
Symptom and possible causes
1. Defective ignition coils or CKP sensor
2. Defective spark plugs
3. Defective ECM
4. Defective tip over sensor
5. 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. Overheated engine
3. Loose spark plugs
4. Too lean mixture
1. Open or short lead wires, or loose lead connec-
tions.
2. Shorted, grounded or open generator coils
3. Shorted or punctured regulator/rectifier
1. Lead wires tend to get shorted or open-circuited
or loosely connected at terminals
2. Grounded or open-circuited generator 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
SERVICING INFORMATION 10-13
Remedy
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 plug.
Replace.
Replace.
Replace.
Replace.
Replace with cold type
plugs.
Tune-up.
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.