F4i fun: fuel problem
08-22-2007, 12:21 AM
#1
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Join Date: Nov 2006
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F4i fun: fuel problem
Heres the deal, got an 03 f4i, wich runs like boiled crap. i know the basic problem, but i dont know how to fix it. the fuel pump relay was broken when i got the bike, so it was rigged to run all the time and everything worked. now the bike starts to chugg, im guessing excessive fuel pressure ruined the pressure regulator. well i got a new relay, but the fuel pump will not work unless i pull the relay out and jump the connector. Then it stays on all the time, so basically im back to square one. i pulled the wiring harness out and checked the wires all seem to be good, no spliced ones. so why wont the relay work? any ideas, im gonna go to the dealer when i get a few mins and see if maybe i just got a bad relay, even though the bike does the same thing with the starter relay. ok what do you think?
08-22-2007, 02:30 AM
#3
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Join Date: Nov 2004
Location: Sunny SW Florida
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Re: F4i fun: fuel problem
I dunno but something is definitely fucked up with your ignition or harness if the starter relay does the same thing... You're not getting power through the control circuit parts of the relays to close the contacts. You could just wire in a toggle switch...
08-22-2007, 03:19 AM
#4
Re: F4i fun: fuel problem
the ecu receives a 7-8 volt signal from the ignition which tells the ecu that the bike isn't being hotwired and fuel pump relay get signal.
i will be doing the first F4i bog elimination write up in the next week or two.
i will be doing the first F4i bog elimination write up in the next week or two.
08-22-2007, 05:46 AM
#6
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Re: F4i fun: fuel problem
no i ment the relay when i swap it over. the bike runs fine minus the chuggin when i jump the connection. would a bad ignistion switch cause it to not run, but allow it to run when jumped? how do i test the switch? thanks for the help
08-22-2007, 03:46 PM
#10
Weeeee!!
Join Date: Nov 2002
Location: Detroit, MI
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Re: F4i fun: fuel problem
If you can jump a relay and make it run I am willing to guess the relay is bad. Why would you try to bypass the ignition? All a relay does is direct current flow like a switch but for higher current.
08-22-2007, 04:19 PM
#11
big fonky rubber chicken
Join Date: Feb 2007
Location: dallas n,c u.s.
Age: 39
Posts: 690
Re: F4i fun: fuel problem
Heres the deal, got an 03 f4i, wich runs like boiled crap. i know the basic problem, but i dont know how to fix it. the fuel pump relay was broken when i got the bike, so it was rigged to run all the time and everything worked. now the bike starts to chugg, im guessing excessive fuel pressure ruined the pressure regulator. well i got a new relay, but the fuel pump will not work unless i pull the relay out and jump the connector. Then it stays on all the time, so basically im back to square one. i pulled the wiring harness out and checked the wires all seem to be good, no spliced ones. so why wont the relay work? any ideas, im gonna go to the dealer when i get a few mins and see if maybe i just got a bad relay, even though the bike does the same thing with the starter relay. ok what do you think?
i went threw a similar problem and it was still the relay even though i bought another it was a bad one to so i eventully just replaced both and it still chugged so i changed the plugs and now its golden.....but if you figure out its in the harness its self i have a spare i can hook ya up with
08-22-2007, 04:53 PM
#14
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Re: F4i fun: fuel problem
yeah i got rid of my r6 cause it wouldnt run right, now the same thing. I just changed my plugs, its something i do with every new used bike, i shold pull them out to check on them. i dont think its the harness though, it tested out ok maybe i should try 2 new relays at 24 bucks a pop.
08-22-2007, 04:56 PM
#16
big fonky rubber chicken
Join Date: Feb 2007
Location: dallas n,c u.s.
Age: 39
Posts: 690
Re: F4i fun: fuel problem
yeah i got rid of my r6 cause it wouldnt run right, now the same thing. I just changed my plugs, its something i do with every new used bike, i shold pull them out to check on them. i dont think its the harness though, it tested out ok maybe i should try 2 new relays at 24 bucks a pop.
08-22-2007, 06:35 PM
#17
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Re: F4i fun: fuel problem
the r6 was an 02 so carb. i rebuilt them like 3 times and it never would run for more thasn 5 mins before it would fall on its face, flooding itself. thats why i got the f4i, like chevelle2030 said. yeah mine runs and generally idles fine, justcraps out when i wheelie or cruise at the same speed for to long.. blah blah blah this bike blows.
08-22-2007, 07:14 PM
#18
Re: F4i fun: fuel problem
haha i had a 02 r6, fuel pumps are what go bad on them... they slowly die out... i loved my 02 r6
http://media.putfile.com/jstunt2
i miss the idle pull on that bitch... and it was stock gear'd..
http://media.putfile.com/jstunt2
i miss the idle pull on that bitch... and it was stock gear'd..
08-23-2007, 12:14 AM
#19
big fonky rubber chicken
Join Date: Feb 2007
Location: dallas n,c u.s.
Age: 39
Posts: 690
Re: F4i fun: fuel problem
the r6 was an 02 so carb. i rebuilt them like 3 times and it never would run for more thasn 5 mins before it would fall on its face, flooding itself. thats why i got the f4i, like chevelle2030 said. yeah mine runs and generally idles fine, justcraps out when i wheelie or cruise at the same speed for to long.. blah blah blah this bike blows.
i dunno man i like the f4i as far as it goes to idle real easy and it loves gettin the **** beat out of it, i believe the bike was engineered for stunting
