I checked for any pinched wires but cant find any & no pinched fuel line.
I disconected the pc3 and ran the plugs back to original, but still no luck.

bike will fire and run for a few seconds then dies.

the batterys flat but im jump starting it off the car battery so its winding over fine.

all sensors etc are connected correctly.

I totally removed the AIS system. this was blocked off previously with bolts fitted in the lines, but ran fine with it blocked off. Where the air line went into the airbox I blocked it off so no dust could get in the filter box.

the bike has a KNN filter fitted and staintune exhausts. It was running fine before disassembly.

The only thing now is a bad fuel pump or a bad earth/ground wire.

Can anyone advise if there are any earth wires that connect directly to the frame as I cant seem to find any! I traced the earth wires from the battery and the only places they went to are to the starter motor ground (through a mount bolt), and the other direct into the wiring loom. (there is one other ground wire, but it goes into the PC3). Ive worked on many other bikes and usually theres a ground wire connecting to the frame near the coil or near the ECU or starter solenoid. I couldnt seem to find any others but maybe Ive missed something...

thanks for the input guys!