ok so i bought this 2004 cbr 600 f4i as my first bike he said it ran a month ago but now it dont it has been wrecked i turn the key the fuel pump does not come on however the fuel pump does work i took it out and put a wire from positive and neg it turns on but the fuel pump relay has not juice to it and the fuel pump doesnt get juice idk what the hell it is the ECM black and white wire that runs to the relay has no juice either but bike does turn over turns on turn signals everything works but that relay and pump what can it be?

 

Check the fuses and look at all of the connections, is always the first step.
I replace even the fuses that look ok, with known good ones. It's sometimes hard to spot bad ones.

Ern

 

How wrecked is it?

The headlights need to be plugged in for the pump to work. Maybe something got damaged in the wreck that it needs to start.

 

fuses good and ya the head light are gone and bank angle sensor is gone as well how do yuou bi pass it

 

You expect people to put effort into helping you when you can't even be bothered to use punctuation or spell properly.

I refuse to decipher that mess of a paragraph.

 

Don't bypass anything unless it's mandatory needed to run bike temporary. Electrical can be a bitch once gone bad...try to savage, cheap fix....Replace.

 

Big Grey headlight harness. Jump the green and red wires together, then your good. Should start right up. I had to do this to my bike after I wrecked and was running it with no plastic's for awhile.



There are many posts about this in the F4i section. Just type bypass bank angle sensor in the search and you will find alot

 

Wow that was kind of difficult to read....

 

sry i was in a hurry i had to go to work