I'm helping a friend out with his CBR1000RR, and it won't start. It'll just crank and crank, and sound like it wants to start, but never will. I've load tested the battery, checked all fuses and relays. The fuel pump primes and I did take a fuel sample, but doesn't seem to be any water in it. We sprayed some starter fluid into the intake and it ran for a few seconds, then died when I gave it throttle. I'm thinking it might be injectors, does anyone have any insight, or has had a similar problem? It did have a PCV on it, but I removed it thinking that maybe it was bad. Thanks in advance!!

 

Any FI codes showing up? Blinking MIL light on the gauge cluster? If it starts with starter fluid, then you have spark and compression. Seems fuel related like fuel pressure, or possibly injectors. Any way for you to check fuel pressure? Any fuel coming out of the vacuum hose on the fuel pressure regulator?

 

I was going to remove the injectors this Tuesday, and I do not have a fuel pressure gauge unfortuunfortunately. I was thinking it might have had dirty fuel and something partially clogged one, or multiple of the injectors.

 

My 06 cbr1000rr just died I tryed everything pump was priming it was I replaced everything nothing worked it would start with starting fluid I rebuilt pump twice replaced regulater couldn’t find Wee’s anyone had my problem and fixed it but I found we’re one guy had same problem it had weak fuel pressure i I finally said heck with it and ordered a whole new fuel pump off a wrecked bike and swapped out the hole pump and it fired up and is back running like a scalded dog it was killing me because I went through everything place the bank angle sensor and the pick up coil the start switch rebuilt pump twice I don’t know why but that pump will not pressure up no matter what I did it was crazy and I finally got it going just felt like I need to get that out there Hope that helps somebody else