Troubleshooting - KYMCO MXU 500 Owner's Manual

4
. LUBRICATION SYSTEM

TROUBLESHOOTING

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