2007-2010 Kawasaki Ultra 250X/260X/260LX PWC Factory Service Manual, Page 104Get this manual
FUEL SYSTEM (OFI) 3-45 Vehicle-down Sensor (Service CodeCharacter-31dOS)
This sensor has weight [A] with two magnets insideand sends signal to the ECU But when the watercraft banks 110130 or more to either side (in fact falls down)the weight turns and shuts off the signalThe ECU senses this changeand stops the fuel pumpthe fuel injectorsand the ignition system Hall IC [B]
Vehicle-down Sensor Connector [A] Ground Terminal BKIW [B] Output Terminal BUW [C] Power Source Terminal RG [D]
Vehicle-down Sensor Removal
CAUTION
Never drop the down-sensor, especially on hard surfaceSuch shock to the sensor can damage it
RemoveSeat (see Seat Removal in the HullEngine Hood chapter) Front Storage Pocket (see HullEngine Hood chapter) Bracket Bolts [A] and Washers RemoveVehicle-down Sensor Connector [A] Screws [B] Vehicle-down Sensor [C]