2008-2010 Kawasaki KFX450R Factory Service Manual, Page 86Get this manual
FUEL SYSTEM (DFI) 3-29 DFI System Troubleshooting Guide
Symptoms or Possible Causes Water or foreign matter in fuel Clogged fuel filter or pump screen Fuel pump trouble Fuel injector trouble Inlet air temperature sensor trouble Water temperature sensor trouble Ignition coil trouble Engine oil level to high Spark plug dirty, broken or gap maladjusted Stumble: Too low fuel pressure Fuel injector trouble Main throttle sensor malfunction Water temperature sensor trouble Inlet air pressure sensor trouble Surge: Unstable fuel pressure Actions (chapter) Change fuelInspect and clean fuel system (see chapter 3)Inspect and replace fuel pump (see chapter 3)Inspect (see chapter 3)Inspect (see chapter 3)Inspect (see chapter 3)Inspect (see chapter 3)Inspect and replace (see chapter 16)Repair (see chapter 7)Replace (see chapter 2)Inspect Inspect Inspect Inspect Inspect (see (see (see (see (see chapter chapter chapter chapter chapter 3)3)3)3)3)