Hey guys,
I have a 2001 cbr 600 f4i. Yesterday I took my tank off and changed my
fuel pressure regulator.
one I changed it I put everything back together as it was.
when I went to start the bike I noticed a slight whistle as it was priming.
I didn't think much about it at this time. But the bike cranked right up.
So as I went off riding I noticed as I pull the throttle back I had hardly any power.
and then after a couple of seconds the bike jolted. So my guess is it has
something to do with the fuel system. As this problem has just occurred.
Do I need or is there even a way to bleed the fuel system? I'm completely lost.
Thanks!

 

bump

 

Check the vaccum tube on the mass air flow sensor I think it is I twisted mine and it did the same thing

 

I'll have to check that out! Did yours throw any fi codes?
because I have nothing lol it seems kind of odd to have a problem where you lose
power and not have any code but I guess we shall see!

 

No it didnt throw any codes it happebed to mine while changing the fpr and cct so I thought it was timing but it ended up bein that I hipe it fixes it safe ridin

 

So I took the tank off once again and found a hose that goes to the
airbox off. I put it back on and fixed nothing. The only sensor I could
find was the MAP. Do you have a picture of the MAF and the location
of it? Also when your vacuum was unplugged did your fuel pump
make a whine/hiss sound? Sounds like theres air in the fuel pump or
something?

 

did you fix the problem? my 2004 cbr is doing same thing, the f1 turns on because my bike jolts and then shuts down, but no code