Bike starts for a few seconds has rough idle then dies

[Slow.1k]

I have a 2002 Hayabusa with 15k miles it will start but idle rough for a few seconds then die. It’s got new plugs, battery, injectors, new ignition coils, and fuel pump. Does anyone know what could be the problem? Thanks

 

[Hayabusa Wannabe]

Welcome to the forum @Slow.1k.

 

[sixpack577]

Did it run good then suddenly not, or did you buy it this way?
Does the FI light flicker or stay on during the brief time it runs?
Have you checked for codes?
(possible cam position sensor or crank position sensor).
Checked the TPS adjustment?

 

[Slow.1k]

Did it run good then suddenly not, or did you buy it this way?
Does the FI light flicker or stay on during the brief time it runs?
Have you checked for codes?
(possible cam position sensor or crank position sensor).
Checked the TPS adjustment?

I bought it with no fuel pump was told it needed only that. I believe the Fl stays on the entire time and it throws no codes. I believe it is the cheap injectors that the last owner put in it, I have ordered some high end ones so I will see what happens. If not I will try the sensors thank you

 

[dadofthree]

Fast idle ?

 

[Franco802]

I went through same thing. Check out my thread in my profile. My friend replaced fuel pump, filter, and injectors with Amazon crap. I replaced everything he did with quality parts and my bike runs great now.