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4. LUBRICATION SYSTEM K-XCT 125i
SERVICE INFORMATION
GENERAL INSTRUCTIONS
The maintenance of lubrication system can be performed with the engine installed in the frame.
Drain the coolant before starting any operations.
Be careful when removing and installing the oil pump not to allow dust and foreign matters to
enter the engine and oil line.
Do not attempt to disassemble the oil pump. The oil pump must be replaced as a set when it
reaches its service limit.
After the oil pump is installed, check each part for oil leaks.
SPECIFICATIONS Unit: mm
Standard
Inner rotor-to-outer rotor clearance 0.15
Outer rotor-to-pump body clearance 0.150.2
Rotor end-to-pump body clearance 0.040.09
ENGINE OIL
At disassembly: 1.2 liter
Engine Oil Capacity
At change: 1.0 liter
Recommended Oil SAE15W40 API: SJ
TROUBLESHOOTING
Oil level too low Poor lubrication pressure
Natural oil consumption Oil level too low
Oil leaks Clogged oil filter or oil passage
Worn piston rings Faulty oil pump
Worn valve guide
Worn valve guide seal
Oil contamination
Oil not changed often enough
Faulty cylinder head gasket
Loose cylinder head bolts
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