7. CYLINDER/PISTON K-XCT 125i Apply engine oil to the cylinder wall, piston and piston ring outer surfaces. Pass the cam chain through the cylinder and install the cylinder over the piston. Be careful not to damage the piston rings and cylinder walls. Install the cylinder head and camshaft holder has installed (refer to the "CYLINDER HEAD" section in the chapter 6), Connect the water hose . 7-10