A friend of my brothers asked me to look at his bike for him. It is a 2003 CBR600RR
He said the bike would shut off on him randomly when coming to a stop after pulling the clutch in. I could not duplicate the issue but taking his word I figured I would take a look.
The fuel level gauge constantly flashes from center and fans out so I know there is an issue there.
Pulling the Codes I got the following:
9 - IAT Sesnsor Curcuit
11 - Vehicle Speed Sensor Circuit
12 - Primary Injector Circuit Malfunction 1
13 - Primary Injector Circuit Malfunction 2
14 - Primary Injector Circuit Malfunction 3
15 - Primary Injector Circuit Malfunction 4
16 - Secondary Injector Circuit Malfunction 1
17 - Secondary Injector Circuit Malfunction 2
48 - Secondary Injector Circuit Malfunction 3
49 - Secondary Injector Circuit Malfunction 4
The bike runs fine (for me) and idles fine. The grounds on the frame and the fuel pump are all fine as well. But with all these codes I feel confident its a ground issue. I have read that there is a "yellow box" ground junction somewhere near the tail section on these bikes that commonly burns out at a wire or two but cannot find it anywhere for the life of me.
However I noticed the plug to the fuel pump is jumped
I have no idea how the jump fixes anything but the pump will not prime without it.
Again I cant duplicate the claimed issue and he says there is no rhyme or reason to the kill other than pulling the clutch in (clutch switch is fine too) but there is clearly something going on here.
Any insight to this would be much appreciated.