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2002 f4i lagg issue?

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Old 06-08-2007, 03:49 AM
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Default 2002 f4i lagg issue?

my bike is always lagging on my about when i hit 9G's (it basically is jumpy but i got the throttle pinned it stays in between 9 and 10 gs for about at most, 2 seconds) what could that be i thought.
maybe an fuel injectoion problem. i did fill it up with 83 octane the first time then i stoped for ovious reasons(im a newbieeeee) so plz someone help a lost soul man!!!


thanks dudes!!

 
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Old 06-08-2007, 04:54 AM
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Default RE: 2002 f4i lagg issue?

83 octane? the lowest i've seen is 86. i would keep your octane 89 and above.
 
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Old 06-08-2007, 06:33 AM
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Default RE: 2002 f4i lagg issue?

87 octane for an f4i. i got bog down low but its perfectly fine up top
 
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Old 06-08-2007, 06:55 AM
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Default RE: 2002 f4i lagg issue?

91 with no problems
 
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Old 06-08-2007, 12:25 PM
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Default RE: 2002 f4i lagg issue?

so you all think its the gas octane then? yeah im sorry i meant 87 octane man. because i filled it up with 91 and i am still having the prob. thing is it didnt start doing it untill i filled it up with 87 for the seconed time so could that have possibly fouled the plugs or what?
 
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Old 06-08-2007, 12:28 PM
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Default RE: 2002 f4i lagg issue?

pull the plugs and see.
you have any misfires, etc. or just hesitation?

there may still be some of that nasty gas in the tank.
 
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Old 06-08-2007, 12:35 PM
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Default RE: 2002 f4i lagg issue?

yeah i just got hesitations. and you could be right i did put some some fuel injection cleaner in there. but as much of a bitch it is it may be worth it to pull those ****er and check em out.
 
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Old 06-08-2007, 12:48 PM
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Default RE: 2002 f4i lagg issue?

something else that's a total pita...if it was bad fuel whatever badness could be stuck in your fuel filter and slowing coming out...muhhahahhahahahah
if it's not spark...i think it may be a partial fuel starving issue...it only happens at 9-10K when you wot right?

what happens if you WOT at 6K...does it fall short at 9-10K and then sudden surge?
after 10K it's ok?
 
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Old 06-08-2007, 01:24 PM
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Default RE: 2002 f4i lagg issue?

yeah its all good till i get to 9k but after 10 yeah its cool it starts going quick again. and i hope that helped because i have no idea waht WOT is .. lol..
 
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Old 06-08-2007, 01:27 PM
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Default RE: 2002 f4i lagg issue?

but you think throwing some octane gew in the gas tank will help clean that dirty fuel out?
 


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