2000-2001 Kawasaki 1100 STX D.I. Jet Ski Factory Service Manual., Page 79Get this manual
FUEL SYSTEM (DFI) 2-39 Diagnostic
4Engine SurgdRuns Rough,
CAUSES Fuel System Contaminated Fuel Restricted or Broken Lines, Fittings, Fiilter, or Pressure Regulator Damaged or Inoperable Fuel Puimp Low or No Pressure Pressure Regulator Stuck Open Low or Unsteady Pressure Failed Injectors
ACTIONS Substisute known good fuel Check fulel lines components Repair or replace as necessary Perform Fuel System Pressuire Test See Fuel Line section Perform Fuel System Pressure Test See Fuel Line section Perform cylindler drop test to isoilate using KADIAG Software Verify signal from EMM using timing light -
1 See Injector StaticlDynarnic Test
Erratic EMM Signals to Iinjectors Ignition System Damaged, Worn, Fouled, or Incorrect Spark Plug Darnaaed or Loose Coil or Lead-
Verify signal from EMM using timing light -