Have 2009 4010 Kawasaki mule has no fuel pressure. Have changed fuel pump, o-rings, and no fuel pressure. Any suggestions.

 

I haven't worked on Petrol (Gas) Mules, but on EFI systems the pump often has it's own fuse, has yours blown? The system also has a pressure release valve, this could be stuck open, however it is unlikely to drop the pressure to zero. A blocked intake filter would stop the fuel from coming through. Check if the pump is turning, either by listening/feeling for the vibration or removing it from the housing, if it is, check the filter and release valve.