4. LUBRICATION SYSTEM K-XCT 125i DISASSEMBLY Remove the screw and disassemble the oil pump as shown. Pump Cover Outer Rotor Inner Rotor Pump Body Screw Dowel Pin Pump Shaft ASSEMBLY Dowel Pin Pump Body Install the outer rotor, inner rotor and pump shaft into the pump body. Insert the pump shaft by aligning the flat on the shaft with the flat in the inner rotor. Install the dowel pin. There is one punch mark on the surface of the inner rotor and outer rotor. The mark is upside. Outer Rotor Inner Rotor Pump Shaft 4-5