2007-2009 Kawasaki KFX50 service manual, Page 65Get this manual
3INSPECTIONADJUSTMENT ENGINE OIL REPLACEMENT AND OIL FILTER CLEANING
APlace the machine on level placeBWarm up the engine for several minutes and stop itCPlace container under the engineDRemove the oil filler cap and oil filter cap to drain the oilBe sure no foreign material enters the crankcaseWhen removing the oil filter cap, the compression spring, oil strainer and O-ring will fall outTake care not to lose these partsEClean the oil strainer with solventFInspect the O-ring and replace it if damagedGReinstall the O-ring, oil strainer, compression spring and oil filter capTighten the oil filter cap to specificationTorque: 15 Nm (1.5 kgfm, 11 lbfft) Before reinstalling the oil filter cap, be sure to install the O-ring, compression spring and oil strainer