2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 75Get this manual
FUEL SYSTEM (DFI) 3-27 Throttle Sensor (Service CodeCharacter-11tPS)
Throttle Se nsor Remova lAdjustment CAUTION
Never drop the throttle sensor [A], especially on hard surfaceSuch shock to the sensor can damage item Reato(ve:e HullEngine Hood chapter) se Air filter (see air Filter Removal) Tr,B mm Usmoave othxe whrreontclh sA]n(sTo2r0mou= t3n.g6screw(s0[.C5.2 in) to re te ni ]
In the engine compartment, there is not enough space
between the throttle sensor and hull to remove the Torx screwsSo use an shape Torx wrench