Electrical - Suzuki LT-A700X 2004 Service Manual

10-14 SERVICING INFORMATION

ELECTRICAL

NO SPARKING OR POOR SPARKING
Symptom, possible causes and remedy
• Defective ignition coil.
• Defective spark plug.
• Defective CKP sensor.
• Defective ECM.
• Defective TO sensor.
• Open-circuited wiring connections.
SPARK PLUG SOON BECOME FOULED WITH CARBON
Symptom, possible causes and remedy
• Mixture too rich.
• Idling speed set too high.
• Incorrect gasoline.
• Dirty air cleaner element.
SPARK PLUG BECOME FOULED TOO SOON
Symptom, possible causes and remedy
• Worn piston rings.
• Worn piston or cylinder.
• Excessive clearance of valve stems in valve
guides.
• Worn stem oil seal.
SPARK PLUG ELECTRODES OVERHEAT OR BURN
Symptom, possible causes and remedy
• Too hot spark plug.
• Overheated the engine.
• Loose spark plug.
• Too lean mixture.
GENERATOR DOES NOT CHARGE
Symptom, possible causes and remedy
• Open- or short-circuited lead wires, or loose lead
connections.
• Short-circuited, grounded or open generator coil.
• Short-circuited or punctured regulator/rectifier.
GENERATOR DOES CHARGE, BUT CHARGING RATE IS BELOW THE SPECIFICATION
Symptom, possible causes and remedy
• Lead wires tend to get short- or open-circuited or
loosely connected at terminals.
• Grounded or open-circuited generator coil.
• Defective regulator/rectifier.
• Defective cell plates in the battery.
GENERATOR OVERCHARGES
Symptom, possible causes and remedy
• Internal short-circuit in the battery.
• Damaged or defective regulator/rectifier.
• Poorly grounded regulator/rectifier.
Replace.
Replace.
Replace.
Replace.
Replace.
Check and repair.
Inspect FI system.
Adjust fast idle or throttle stop screw.
Change.
Replace.
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.
Clean and tighten ground connection.