2008-2010 Kawasaki KFX450R Factory Service Manual, Page 110Get this manual
FUEL SYSTEM (DFI) 3-53 Vehicle-down Sensor (Service Code 31)
Vehicle-down Sensor Removal CAUTION
Never drop the vehicle-down sensor, especially on hard surfaceSuch shock to the sensor can damage it
Remove: (see Upper Cover Removal in the Frame Upper Cover
chapter) Vehicle-down Sensor [A] Connector [B]
Vehicle-down Sensor Installation
The UPPER mark [A] of the sensor should face upwardWARNING