Honda CBR650F Service Manual page 187

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LUBRICATION SYSTEM
SERVICE INFORMATION
LUBRICATION SYSTEM
GENERAL
Used engine oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods. Although this is unlikely
unless you handle used oil on a daily basis, it is still advisable to thoroughly wash your hands with soap and water as soon as
possible after handling used oil.
• The oil pump can be serviced with the engine installed in the frame.
• The service procedures in this section must be performed with the engine oil drained.
• When removing and installing the oil pump, use care not to allow dust or dirt to enter the engine.
• If any portion of the oil pump is worn beyond the specified service limits, replace the oil pump as an assembly.
• After the oil pump has been installed, check that there are no oil leaks and that oil pressure is correct.
• For engine oil pressure indicator/EOP switch inspection (page 21-13).
TROUBLESHOOTING
Oil level too low
• Oil consumption
• External oil leak
• Worn piston rings (page 14-14)
• Improperly installed piston rings (page 14-14)
• Worn cylinders (page 14-14)
• Worn stem seals (page 10-12)
• Worn valve guide (page 10-13)
Low oil pressure
• Oil level low
• Clogged oil strainer
• Internal oil leak
• Incorrect oil being used
No oil pressure
• Oil level too low
• Oil pressure relief valve stuck open
• Broken oil pump drive chain
• Broken oil pump drive or driven sprocket
• Damaged oil pump
• Internal oil leak
High oil pressure
• Oil pressure relief valve stuck closed
• Clogged oil filter, gallery or metering orifice
• Incorrect oil being used
Oil contamination
• Oil or filter not changed often enough
• Worn piston rings (page 14-14)
Oil emulsification
• Blown cylinder head gasket
• Leaky coolant passage
• Entry of water
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