what does a bad fpr do to the bike just to tcheck if it is my problem ... because my bike wont rev more then 6000 rpm wen i throlltle it half way and all the way too ... i change it last week but i put a used one ... maybe this is still my problem

 

A bad FPR can cause several issues, mine went bad last year because i didnt' put stabilizer in it before i stored it. I was having trouble trying to start it, like it would crank over all day but wouldnt fire, would foul the plugs. I've read also if that part is failing, you can get fuel coming out your exhaust, or your exhaust smells extremely strong of fuel. My only guess for your problem is it is getting too much fuel somehow (be it just running rich from dirty air filter/your FPR is faulty providing too much gas/or bad plugs) and your not able to accelerate properly. Try checking those items first and come back with what you find. Cheers.

 

Check to see if the vacuum line going to the FPR has fuel in it.

 

Im having same problem and i just put new plugs in,new fuel pressure regulator,and my air filter is not new but far from dirty.... but the problem is still there..... any suggestions is grwatly appreciated

 

if you disconnected the vacuum hoses recently, i would double check that.

how does your bike behave when you try to push it pass 6k rpm.

 

no, vacuum hose still intack, just falls on face, meaning she wont runs past 5krpms

 

yeah. it's probably time to change out the fpr. But before you do. on the side of the bike with the oil window, where the clutch is housed, there's a wire that comes out and it goes to some sort of sensor that helps control the rate which the spark and fuel drop. Follow that wire and see if it's damaged.

 

will check thanx

 

Is your bike making a ticking noise?

 

nope no ticking noise, i check the codes, think it has something to do with the throttle position sensor and #1 injector.... going to check them today, also intake air temp sensor,