7-3
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LUBRICATION SYSTEM
SERVICE INFORMATION
GENERAL
• The oil pump can be serviced with the engine installed in the frame.
• 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 limit, 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.
• Engine oil level inspection (page 3-7)
• Engine oil change (page 3-7)
• Engine oil centrifugal filter cleaning (page 3-8)
• Engine oil strainer screen cleaning (page 3-7)
TROUBLESHOOTING
Engine oil level too low, high oil consumption
• External oil leaks
• Worn valve guide or stem seal
• Worn piston rings or incorrect piston ring installation
• Worn cylinder
Engine oil contamination
• Oil not changed often enough
• Clogged oil strainer
• Oil centrifugal filter not cleaned often enough
• Worn piston rings
OIL PUMP
REMOVAL
Remove the right crankcase cover (page 10-4).
Remove the oil pump driven gear [1].
Remove the two mounting bolts [2] and oil pump [3].
Remove the dowel pins [1] from the oil pump body.
INSTALLATION
Install the oil pump onto the right crankcase by aligning
the dowel pins with the holes.
Install the removed parts in the reverse order of
removal.
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.
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