2008-2010 Kawasaki KFX450R Factory Service Manual, Page 87Get this manual
3-30 FUEL SYSTEM (DFI) DFI System Troubleshooting Guide
Symptoms or Possible Causes Engine overheating Other: Engine oil viscosity too high Drive train trouble Brake dragging Actions (chapter) (see Overheating of Troubleshooting Guide, see chapter 17) Change (see chapter 2)Inspect drive chain (see chapter 2) and sprocket (see chapter 11)Inspect caliper fluid seal damage or clogging of master cylinder relief and supply ports (see chapter 12)Inspect friction plates for wear (see chapter 6)(see Overheating of Troubleshooting Guide, see chapter 17) Check that DFI connectors are clean and tight, and examine wires for signs of burning or fraying (see chapter 3)Actions (chapter) Replace (see chapter 2)Inspect ignition coil (see chapter 16)Reinstall or inspect ignition coil (see chapter 16)Replace it with the correct plug (see chapter 16)Inspect (see chapter 16)Inspect (see chapter 16)Inspect (see chapter 16)
Clutch slipping Engine overheating Intermittent any DFI fault and its recovery