2007-2010 Kawasaki Ultra 250X/260X/260LX PWC Factory Service Manual, Page 187Get this manual
ENGINE LUBRICATION SYSTEM 4-23 Oil Pump Sprocket, Oil Pump and Oil Pressure Relief Valve
Oil Pump Chain Removal
Split the crankcase (see Crankcase Splitting in the Engine Bottom End chapter) Remove the camshaft chain [A] and the oil pump chain [B]