2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 97Get this manual
FUEL SYSTEM (DFI) 3-49 Fuel Injectors (Service CodeCharacter-41, 42, 43, 44InJ1, InJ2, InJ3, InJ4)
Injecto Fuel Line Inspe tion
o ea ol Check ctheainjectmrmfuecl ilanle foarvlaiaakblge as cfuulowpr:essure va Conne co er y
pump [A] to the supply joint of the delivery pipe [B] with the fuel hose [C] (both ends connected with the clamps [D]) as shownPlug the return joint of the delivery pipe with rubber plug [E]Tighten the clamp [F]Apply soap and water solution to the areas [G] as shownWatching the pressure gauge, squeeze the pump lever]and the the re the aximum pressureF el ss Standard: 300 kPa (3.06 kgfcm, 44 psi)