2008-2010 Kawasaki KFX450R Factory Service Manual, Page 181Get this manual
5-20 ENGINE TOP END Cylinder Head
Cylinder Compression Measurement
Start the engineup the engine so that the engine oil be Thoroughly warmand cylinder wall will help seal comprestween the piston
sion as it does during normal runningStop the engineRemove: Fuel Tank (see Fuel Tank Removal in the Fuel System (DFI) chapter) Remove the spark plug [A] with spark plug wrench [B] (or owner's tool)Special ToolSpark Plug Wrench, Hex 16: 57001-1262 Owner's ToolSpark Plug Wrench: 92110-0002
compression gauge [A] Attach theinto the spark plug holeand the adapter hose [B] firmly