kymco mo bw250 Instruction De Maintenance

• The maintenance of lubrication system can be performed with the engine installed in the frame.
• Drain the coolant before starting any operations.
• Use care 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.

Standard (mm)

Service Limit (mm)

Inner rotor-to-outer rotor clearance

0.15

0.20

Outer rotor-to-pump body clearance

0.15_

0.20

0.25

Rotor end-to-pump body clearance

0.04_

0.09

0.12

Engine Oil Capacity

 At disassembly: 1.1 liter   At change: 0.9 liter

Recommended Oil

 SAE15W40#  API: SG/CD

• 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