Troubleshooting - KYMCO X-Town 250 ABS Service 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
Oil pressure warning indicator does not work
 Faulty oil pressure switch
 Short circuit in the indicator wire
 Low or no oil pressure
X-Town250/300 ABS