Suzuki DL650 Service Manual page 412

SERVICING I N FORMATI O N 9-13
BRAKE DRAGS
Symptom, possible causes and remedy
Rusty part.
Insufficient brake lever or brake pedal pivot
lubrication.
Clean and lubricate.
Lubricate.
ELECTRICAL
NO SPARKING OR POOR SPARKING
Symptom, possible causes and remedy
Defective ignition coils or spark plug caps. Replace.
Defective spark plugs. Replace.
Defective CKP sensor. Replace.
Defective ECM. Replace.
Defective TO sensor. Replace.
Open-circuited wiring connections.
Check and repair.
SPARK PLUG SOON BECOME FOULED WITH CARBON
Symptom, possible causes and remedy
Mixture too rich. Inspect FI system.
Idling speed set too high. Adjust fast idle or throttle stop screw.
Incorrect gasoline. Change.
Dirty air cleaner element.
Clean or replace.
Too cold spark plugs.
Replace with hot type plugs.
SPARK PLUG BECOME FOULED TOO SOON
Symptom, possible causes and remedy
Worn piston rings. Replace.
Worn piston or cylinders.
Replace.
Excessive clearance of valve stems in valve Replace.
guides.
Worn stem oil seal. Replace.
SPARK PLUG ELECTRODES OVERHEAT OR BURN
Symptom, possible causes and remedy
Too hot spark plugs.
Overheated the engine.
Loose spark plugs.
Too lean mixture.
GENERATORDOESNOTCHARGE
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 regulatorlrectifier.
Replace with cold type plugs.
Tune up.
Retighten.
Consult FI system.
Repair or replace or retighten.
Replace.
Replace.