4. LUBRICATION SYSTEM
4-3
XCITING 500
TROUBLESHOOTING
Oil level low High oil pressure
• Oil consumption • Pressure relief valve stuck closed
• External oil leak • Plugged oil filter, gallery, or metering orifice
• Worn piston ring • Faulty oil pump
• Incorrect piston ring installation
• Worn valve guide or seal Seized engine
• No or low oil pressure
Oil contamination (White appearance) • Clogged oil orifice/passage
• From coolant mixing with oil • Internal oil leak
─ Faulty water pump mechanical seal • Non-recommended oil used
─ Faulty head gasket
─ Water leak in crankcase Oil contamination
• Deteriorated oil
No oil pressure • Faulty oil filter
• Oil level too low • Worn piston ring (White appearance with water or
• Oil pump drive chain broken moisture)
• Oil pump drive sprocket broken ─ Damaged water pump mechanical seal
• Oil pump damaged (pump shaft) ─ Damaged head gasket
• Internal oil leak ─ Oil relief not frequent enough
Low oil pressure Oil pressure warning indicator does not work
• Pressure relief valve stuck open • Faulty oil pressure switch
• Clogged oil filter and strainer screen • Short circuit in the indicator wire
• Oil pump worn or damaged • Low or no oil pressure
• Internal oil leak
• Incorrect oil being used
• Oil level too low
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